[PATCH] D12747: Implement [depr.c.headers]

Richard Smith via cfe-commits cfe-commits at lists.llvm.org
Tue Oct 6 15:36:32 PDT 2015


Split <math.h> out of <cmath>. This is a big change, but the same pattern
as the prior ones.

On Tue, Oct 6, 2015 at 3:28 PM, Richard Smith <richard at metafoo.co.uk> wrote:

> Likewise for <errno.h>, <float.h>, <inttypes.h>
>
> On Tue, Oct 6, 2015 at 3:20 PM, Richard Smith <richard at metafoo.co.uk>
> wrote:
>
>> Split <ctype.h> header out of <cctype>
>>
>> On Tue, Oct 6, 2015 at 3:07 PM, Richard Smith <richard at metafoo.co.uk>
>> wrote:
>>
>>> Next: factoring the definition of std::nullptr_t out into a separate
>>> file, so that <cstddef> and <stddef.h> can both use it, without <stddef.h>
>>> including <cstddef> and without <cstddef> providing a ::nullptr_t like
>>> <stddef.h> does.
>>>
>>> On Tue, Oct 6, 2015 at 3:02 PM, Eric Fiselier <eric at efcs.ca> wrote:
>>>
>>>> LGTM.
>>>>
>>>> On Tue, Oct 6, 2015 at 3:58 PM, Richard Smith <richard at metafoo.co.uk>
>>>> wrote:
>>>> > On Mon, Oct 5, 2015 at 7:10 PM, Eric Fiselier <eric at efcs.ca> wrote:
>>>> >>
>>>> >> EricWF added a comment.
>>>> >>
>>>> >> I think thing change will help us close a number out outstanding
>>>> bugs. I
>>>> >> don't have any fundamental objections to this approach.  However the
>>>> size of
>>>> >> this patch scares me.  I understand the changes are mostly
>>>> mechanical but
>>>> >> their size can hide things. For example has anybody noticed that your
>>>> >> internal changes to `<deque>` are in this patch? It would be nice to
>>>> break
>>>> >> this down into more digestible pieces that could be quickly spot
>>>> checked.
>>>> >
>>>> >
>>>> > OK. First such patch is attached. It just removes the macro-capturing
>>>> > wrapper functions.
>>>>
>>>
>>>
>>
>
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diff --git include/cmath include/cmath
index 5f9aaed..ebbde18 100644
--- include/cmath
+++ include/cmath
@@ -299,340 +299,11 @@ long double    truncl(long double x);
 
 #include <__config>
 #include <math.h>
-#include <type_traits>
-
-#ifdef _LIBCPP_MSVCRT
-#include "support/win32/math_win32.h"
-#endif
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
-// signbit
-
-#ifdef signbit
-
-template <class _A1>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_signbit(_A1 __lcpp_x) _NOEXCEPT
-{
-    return signbit(__lcpp_x);
-}
-
-#undef signbit
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
-signbit(_A1 __lcpp_x) _NOEXCEPT
-{
-    return __libcpp_signbit((typename std::__promote<_A1>::type)__lcpp_x);
-}
-
-#endif  // signbit
-
-// fpclassify
-
-#ifdef fpclassify
-
-template <class _A1>
-_LIBCPP_ALWAYS_INLINE
-int
-__libcpp_fpclassify(_A1 __lcpp_x) _NOEXCEPT
-{
-    return fpclassify(__lcpp_x);
-}
-
-#undef fpclassify
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if<std::is_arithmetic<_A1>::value, int>::type
-fpclassify(_A1 __lcpp_x) _NOEXCEPT
-{
-    return __libcpp_fpclassify((typename std::__promote<_A1>::type)__lcpp_x);
-}
-
-#endif  // fpclassify
-
-// isfinite
-
-#ifdef isfinite
-
-template <class _A1>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isfinite(_A1 __lcpp_x) _NOEXCEPT
-{
-    return isfinite(__lcpp_x);
-}
-
-#undef isfinite
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
-isfinite(_A1 __lcpp_x) _NOEXCEPT
-{
-    return __libcpp_isfinite((typename std::__promote<_A1>::type)__lcpp_x);
-}
-
-#endif  // isfinite
-
-// isinf
-
-#ifdef isinf
-
-template <class _A1>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isinf(_A1 __lcpp_x) _NOEXCEPT
-{
-    return isinf(__lcpp_x);
-}
-
-#undef isinf
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
-isinf(_A1 __lcpp_x) _NOEXCEPT
-{
-    return __libcpp_isinf((typename std::__promote<_A1>::type)__lcpp_x);
-}
-
-#endif  // isinf
-
-// isnan
-
-#ifdef isnan
-
-template <class _A1>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isnan(_A1 __lcpp_x) _NOEXCEPT
-{
-    return isnan(__lcpp_x);
-}
-
-#undef isnan
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
-isnan(_A1 __lcpp_x) _NOEXCEPT
-{
-    return __libcpp_isnan((typename std::__promote<_A1>::type)__lcpp_x);
-}
-
-#endif  // isnan
-
-// isnormal
-
-#ifdef isnormal
-
-template <class _A1>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isnormal(_A1 __lcpp_x) _NOEXCEPT
-{
-    return isnormal(__lcpp_x);
-}
-
-#undef isnormal
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
-isnormal(_A1 __lcpp_x) _NOEXCEPT
-{
-    return __libcpp_isnormal((typename std::__promote<_A1>::type)__lcpp_x);
-}
-
-#endif  // isnormal
-
-// isgreater
-
-#ifdef isgreater
-
-template <class _A1, class _A2>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    return isgreater(__lcpp_x, __lcpp_y);
-}
-
-#undef isgreater
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if
-<
-    std::is_arithmetic<_A1>::value &&
-    std::is_arithmetic<_A2>::value,
-    bool
->::type
-isgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isgreater((type)__lcpp_x, (type)__lcpp_y);
-}
-
-#endif  // isgreater
-
-// isgreaterequal
-
-#ifdef isgreaterequal
-
-template <class _A1, class _A2>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isgreaterequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    return isgreaterequal(__lcpp_x, __lcpp_y);
-}
-
-#undef isgreaterequal
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if
-<
-    std::is_arithmetic<_A1>::value &&
-    std::is_arithmetic<_A2>::value,
-    bool
->::type
-isgreaterequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isgreaterequal((type)__lcpp_x, (type)__lcpp_y);
-}
-
-#endif  // isgreaterequal
-
-// isless
-
-#ifdef isless
-
-template <class _A1, class _A2>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isless(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    return isless(__lcpp_x, __lcpp_y);
-}
-
-#undef isless
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if
-<
-    std::is_arithmetic<_A1>::value &&
-    std::is_arithmetic<_A2>::value,
-    bool
->::type
-isless(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isless((type)__lcpp_x, (type)__lcpp_y);
-}
-
-#endif  // isless
-
-// islessequal
-
-#ifdef islessequal
-
-template <class _A1, class _A2>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_islessequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    return islessequal(__lcpp_x, __lcpp_y);
-}
-
-#undef islessequal
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if
-<
-    std::is_arithmetic<_A1>::value &&
-    std::is_arithmetic<_A2>::value,
-    bool
->::type
-islessequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_islessequal((type)__lcpp_x, (type)__lcpp_y);
-}
-
-#endif  // islessequal
-
-// islessgreater
-
-#ifdef islessgreater
-
-template <class _A1, class _A2>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_islessgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    return islessgreater(__lcpp_x, __lcpp_y);
-}
-
-#undef islessgreater
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if
-<
-    std::is_arithmetic<_A1>::value &&
-    std::is_arithmetic<_A2>::value,
-    bool
->::type
-islessgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_islessgreater((type)__lcpp_x, (type)__lcpp_y);
-}
-
-#endif  // islessgreater
-
-// isunordered
-
-#ifdef isunordered
-
-template <class _A1, class _A2>
-_LIBCPP_ALWAYS_INLINE
-bool
-__libcpp_isunordered(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    return isunordered(__lcpp_x, __lcpp_y);
-}
-
-#undef isunordered
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename std::enable_if
-<
-    std::is_arithmetic<_A1>::value &&
-    std::is_arithmetic<_A2>::value,
-    bool
->::type
-isunordered(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename std::__promote<_A1, _A2>::type type;
-    return __libcpp_isunordered((type)__lcpp_x, (type)__lcpp_y);
-}
-
-#endif  // isunordered
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 using ::signbit;
@@ -652,794 +323,130 @@ using ::isunordered;
 using ::float_t;
 using ::double_t;
 
-// abs
-
-#if defined(__sun__)
+#ifndef _AIX
 using ::abs;
 #endif
 
-#if !defined(_AIX) && !defined(__sun__)
-inline _LIBCPP_INLINE_VISIBILITY
-float
-abs(float __lcpp_x) _NOEXCEPT {return fabsf(__lcpp_x);}
-
-inline _LIBCPP_INLINE_VISIBILITY
-double
-abs(double __lcpp_x) _NOEXCEPT {return fabs(__lcpp_x);}
-
-inline _LIBCPP_INLINE_VISIBILITY
-long double
-abs(long double __lcpp_x) _NOEXCEPT {return fabsl(__lcpp_x);}
-#endif // !defined(_AIX)
-
 #ifndef __sun__
-
-// acos
-
 using ::acos;
 using ::acosf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       acos(float __lcpp_x) _NOEXCEPT       {return acosf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double acos(long double __lcpp_x) _NOEXCEPT {return acosl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-acos(_A1 __lcpp_x) _NOEXCEPT {return acos((double)__lcpp_x);}
-
-// asin
-
 using ::asin;
 using ::asinf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       asin(float __lcpp_x) _NOEXCEPT       {return asinf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double asin(long double __lcpp_x) _NOEXCEPT {return asinl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-asin(_A1 __lcpp_x) _NOEXCEPT {return asin((double)__lcpp_x);}
-
-// atan
-
 using ::atan;
 using ::atanf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       atan(float __lcpp_x) _NOEXCEPT       {return atanf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double atan(long double __lcpp_x) _NOEXCEPT {return atanl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-atan(_A1 __lcpp_x) _NOEXCEPT {return atan((double)__lcpp_x);}
-
-// atan2
-
 using ::atan2;
 using ::atan2f;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       atan2(float __lcpp_y, float __lcpp_x) _NOEXCEPT             {return atan2f(__lcpp_y, __lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double atan2(long double __lcpp_y, long double __lcpp_x) _NOEXCEPT {return atan2l(__lcpp_y, __lcpp_x);}
-#endif
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-atan2(_A1 __lcpp_y, _A2 __lcpp_x) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return atan2((__result_type)__lcpp_y, (__result_type)__lcpp_x);
-}
-
-// ceil
-
 using ::ceil;
 using ::ceilf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       ceil(float __lcpp_x) _NOEXCEPT       {return ceilf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double ceil(long double __lcpp_x) _NOEXCEPT {return ceill(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-ceil(_A1 __lcpp_x) _NOEXCEPT {return ceil((double)__lcpp_x);}
-
-// cos
-
 using ::cos;
 using ::cosf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       cos(float __lcpp_x) _NOEXCEPT       {return cosf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double cos(long double __lcpp_x) _NOEXCEPT {return cosl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-cos(_A1 __lcpp_x) _NOEXCEPT {return cos((double)__lcpp_x);}
-
-// cosh
-
 using ::cosh;
 using ::coshf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       cosh(float __lcpp_x) _NOEXCEPT       {return coshf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double cosh(long double __lcpp_x) _NOEXCEPT {return coshl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-cosh(_A1 __lcpp_x) _NOEXCEPT {return cosh((double)__lcpp_x);}
-
 #endif // __sun__
-// exp
 
 using ::exp;
 using ::expf;
 
 #ifndef __sun__
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       exp(float __lcpp_x) _NOEXCEPT       {return expf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double exp(long double __lcpp_x) _NOEXCEPT {return expl(__lcpp_x);}
-#endif
-
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-exp(_A1 __lcpp_x) _NOEXCEPT {return exp((double)__lcpp_x);}
-
-// fabs
-
 using ::fabs;
 using ::fabsf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       fabs(float __lcpp_x) _NOEXCEPT       {return fabsf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double fabs(long double __lcpp_x) _NOEXCEPT {return fabsl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-fabs(_A1 __lcpp_x) _NOEXCEPT {return fabs((double)__lcpp_x);}
-
-// floor
-
 using ::floor;
 using ::floorf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       floor(float __lcpp_x) _NOEXCEPT       {return floorf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double floor(long double __lcpp_x) _NOEXCEPT {return floorl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-floor(_A1 __lcpp_x) _NOEXCEPT {return floor((double)__lcpp_x);}
-
-// fmod
-
 #endif //__sun__
+
 using ::fmod;
 using ::fmodf;
-#ifndef __sun__
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       fmod(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fmodf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double fmod(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fmodl(__lcpp_x, __lcpp_y);}
-#endif
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-fmod(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return fmod((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-
-// frexp
 
+#ifndef __sun__
 using ::frexp;
 using ::frexpf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       frexp(float __lcpp_x, int* __lcpp_e) _NOEXCEPT       {return frexpf(__lcpp_x, __lcpp_e);}
-inline _LIBCPP_INLINE_VISIBILITY long double frexp(long double __lcpp_x, int* __lcpp_e) _NOEXCEPT {return frexpl(__lcpp_x, __lcpp_e);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-frexp(_A1 __lcpp_x, int* __lcpp_e) _NOEXCEPT {return frexp((double)__lcpp_x, __lcpp_e);}
-
-// ldexp
-
 using ::ldexp;
 using ::ldexpf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       ldexp(float __lcpp_x, int __lcpp_e) _NOEXCEPT       {return ldexpf(__lcpp_x, __lcpp_e);}
-inline _LIBCPP_INLINE_VISIBILITY long double ldexp(long double __lcpp_x, int __lcpp_e) _NOEXCEPT {return ldexpl(__lcpp_x, __lcpp_e);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-ldexp(_A1 __lcpp_x, int __lcpp_e) _NOEXCEPT {return ldexp((double)__lcpp_x, __lcpp_e);}
-
-// log
-
 #endif // __sun__
+
 using ::log;
 using ::logf;
-#ifndef __sun__
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       log(float __lcpp_x) _NOEXCEPT       {return logf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double log(long double __lcpp_x) _NOEXCEPT {return logl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-log(_A1 __lcpp_x) _NOEXCEPT {return log((double)__lcpp_x);}
-
-
-// log10
 
+#ifndef __sun__
 using ::log10;
 using ::log10f;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       log10(float __lcpp_x) _NOEXCEPT       {return log10f(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double log10(long double __lcpp_x) _NOEXCEPT {return log10l(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-log10(_A1 __lcpp_x) _NOEXCEPT {return log10((double)__lcpp_x);}
-
-// modf
-
 using ::modf;
 using ::modff;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       modf(float __lcpp_x, float* __lcpp_y) _NOEXCEPT             {return modff(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double modf(long double __lcpp_x, long double* __lcpp_y) _NOEXCEPT {return modfl(__lcpp_x, __lcpp_y);}
-#endif
-
-// pow
-
 #endif // __sun__ 
+
 using ::pow;
 using ::powf;
 
 #ifndef __sun__
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       pow(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return powf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double pow(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return powl(__lcpp_x, __lcpp_y);}
-#endif
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-pow(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return pow((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// sin
-
 using ::sin;
 using ::sinf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       sin(float __lcpp_x) _NOEXCEPT       {return sinf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double sin(long double __lcpp_x) _NOEXCEPT {return sinl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-sin(_A1 __lcpp_x) _NOEXCEPT {return sin((double)__lcpp_x);}
-
-// sinh
-
 using ::sinh;
 using ::sinhf;
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       sinh(float __lcpp_x) _NOEXCEPT       {return sinhf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double sinh(long double __lcpp_x) _NOEXCEPT {return sinhl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-sinh(_A1 __lcpp_x) _NOEXCEPT {return sinh((double)__lcpp_x);}
-
-// sqrt
-
 #endif // __sun__
+
 using ::sqrt;
 using ::sqrtf;
-
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(__sun__) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       sqrt(float __lcpp_x) _NOEXCEPT       {return sqrtf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double sqrt(long double __lcpp_x) _NOEXCEPT {return sqrtl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-sqrt(_A1 __lcpp_x) _NOEXCEPT {return sqrt((double)__lcpp_x);}
-
-// tan
-
 using ::tan;
 using ::tanf;
-#ifndef __sun__
-
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       tan(float __lcpp_x) _NOEXCEPT       {return tanf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double tan(long double __lcpp_x) _NOEXCEPT {return tanl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-tan(_A1 __lcpp_x) _NOEXCEPT {return tan((double)__lcpp_x);}
-
-// tanh
 
+#ifndef __sun__
 using ::tanh;
 using ::tanhf;
 
-#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
-inline _LIBCPP_INLINE_VISIBILITY float       tanh(float __lcpp_x) _NOEXCEPT       {return tanhf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double tanh(long double __lcpp_x) _NOEXCEPT {return tanhl(__lcpp_x);}
-#endif
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-tanh(_A1 __lcpp_x) _NOEXCEPT {return tanh((double)__lcpp_x);}
-
-// acosh
-
 #ifndef _LIBCPP_MSVCRT
 using ::acosh;
 using ::acoshf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       acosh(float __lcpp_x) _NOEXCEPT       {return acoshf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double acosh(long double __lcpp_x) _NOEXCEPT {return acoshl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-acosh(_A1 __lcpp_x) _NOEXCEPT {return acosh((double)__lcpp_x);}
-#endif
-
-// asinh
-
-#ifndef _LIBCPP_MSVCRT
 using ::asinh;
 using ::asinhf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       asinh(float __lcpp_x) _NOEXCEPT       {return asinhf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double asinh(long double __lcpp_x) _NOEXCEPT {return asinhl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-asinh(_A1 __lcpp_x) _NOEXCEPT {return asinh((double)__lcpp_x);}
-#endif
-
-// atanh
-
-#ifndef _LIBCPP_MSVCRT
 using ::atanh;
 using ::atanhf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       atanh(float __lcpp_x) _NOEXCEPT       {return atanhf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double atanh(long double __lcpp_x) _NOEXCEPT {return atanhl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-atanh(_A1 __lcpp_x) _NOEXCEPT {return atanh((double)__lcpp_x);}
-#endif
-
-// cbrt
-
-#ifndef _LIBCPP_MSVCRT
 using ::cbrt;
 using ::cbrtf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       cbrt(float __lcpp_x) _NOEXCEPT       {return cbrtf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double cbrt(long double __lcpp_x) _NOEXCEPT {return cbrtl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-cbrt(_A1 __lcpp_x) _NOEXCEPT {return cbrt((double)__lcpp_x);}
 #endif
 
-// copysign
-
 using ::copysign;
 using ::copysignf;
 
-#if !defined(_VC_CRT_MAJOR_VERSION) || (_VC_CRT_MAJOR_VERSION < 12)
-inline _LIBCPP_INLINE_VISIBILITY float copysign(float __lcpp_x,
-                                                float __lcpp_y) _NOEXCEPT {
-  return copysignf(__lcpp_x, __lcpp_y);
-}
-inline _LIBCPP_INLINE_VISIBILITY long double
-copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
-  return copysignl(__lcpp_x, __lcpp_y);
-}
-#endif
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return copysign((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
 #ifndef _LIBCPP_MSVCRT
-
-// erf
-
 using ::erf;
 using ::erff;
-
-inline _LIBCPP_INLINE_VISIBILITY float       erf(float __lcpp_x) _NOEXCEPT       {return erff(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double erf(long double __lcpp_x) _NOEXCEPT {return erfl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-erf(_A1 __lcpp_x) _NOEXCEPT {return erf((double)__lcpp_x);}
-
-// erfc
-
 using ::erfc;
 using ::erfcf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       erfc(float __lcpp_x) _NOEXCEPT       {return erfcf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double erfc(long double __lcpp_x) _NOEXCEPT {return erfcl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-erfc(_A1 __lcpp_x) _NOEXCEPT {return erfc((double)__lcpp_x);}
-
-// exp2
-
 using ::exp2;
 using ::exp2f;
-
-inline _LIBCPP_INLINE_VISIBILITY float       exp2(float __lcpp_x) _NOEXCEPT       {return exp2f(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double exp2(long double __lcpp_x) _NOEXCEPT {return exp2l(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-exp2(_A1 __lcpp_x) _NOEXCEPT {return exp2((double)__lcpp_x);}
-
-// expm1
-
 using ::expm1;
 using ::expm1f;
-
-inline _LIBCPP_INLINE_VISIBILITY float       expm1(float __lcpp_x) _NOEXCEPT       {return expm1f(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double expm1(long double __lcpp_x) _NOEXCEPT {return expm1l(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-expm1(_A1 __lcpp_x) _NOEXCEPT {return expm1((double)__lcpp_x);}
-
-// fdim
-
 using ::fdim;
 using ::fdimf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       fdim(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fdimf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double fdim(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fdiml(__lcpp_x, __lcpp_y);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-fdim(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return fdim((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// fma
-
 using ::fmaf;
 using ::fma;
-
-inline _LIBCPP_INLINE_VISIBILITY float       fma(float __lcpp_x, float __lcpp_y, float __lcpp_z) _NOEXCEPT                   {return fmaf(__lcpp_x, __lcpp_y, __lcpp_z);}
-inline _LIBCPP_INLINE_VISIBILITY long double fma(long double __lcpp_x, long double __lcpp_y, long double __lcpp_z) _NOEXCEPT {return fmal(__lcpp_x, __lcpp_y, __lcpp_z);}
-
-template <class _A1, class _A2, class _A3>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value &&
-    is_arithmetic<_A3>::value,
-    __promote<_A1, _A2, _A3>
->::type
-fma(_A1 __lcpp_x, _A2 __lcpp_y, _A3 __lcpp_z) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2, _A3>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value &&
-                      is_same<_A3, __result_type>::value)), "");
-    return fma((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
-}
-
-// fmax
-
 using ::fmax;
 using ::fmaxf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       fmax(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fmaxf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double fmax(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fmaxl(__lcpp_x, __lcpp_y);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-fmax(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return fmax((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// fmin
-
 using ::fmin;
 using ::fminf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       fmin(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fminf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double fmin(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fminl(__lcpp_x, __lcpp_y);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-fmin(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return fmin((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// hypot
-
 using ::hypot;
 using ::hypotf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       hypot(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return hypotf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double hypot(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return hypotl(__lcpp_x, __lcpp_y);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-hypot(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return hypot((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// ilogb
-
 using ::ilogb;
 using ::ilogbf;
-
-inline _LIBCPP_INLINE_VISIBILITY int ilogb(float __lcpp_x) _NOEXCEPT       {return ilogbf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY int ilogb(long double __lcpp_x) _NOEXCEPT {return ilogbl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, int>::type
-ilogb(_A1 __lcpp_x) _NOEXCEPT {return ilogb((double)__lcpp_x);}
-
-// lgamma
-
 using ::lgamma;
 using ::lgammaf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       lgamma(float __lcpp_x) _NOEXCEPT       {return lgammaf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double lgamma(long double __lcpp_x) _NOEXCEPT {return lgammal(__lcpp_x);}
-
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-lgamma(_A1 __lcpp_x) _NOEXCEPT {return lgamma((double)__lcpp_x);}
-
-
-// llrint
-
 using ::llrint;
 using ::llrintf;
-
-inline _LIBCPP_INLINE_VISIBILITY long long llrint(float __lcpp_x) _NOEXCEPT       {return llrintf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long long llrint(long double __lcpp_x) _NOEXCEPT {return llrintl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, long long>::type
-llrint(_A1 __lcpp_x) _NOEXCEPT {return llrint((double)__lcpp_x);}
-
-// llround
-
 using ::llround;
 using ::llroundf;
-
-inline _LIBCPP_INLINE_VISIBILITY long long llround(float __lcpp_x) _NOEXCEPT       {return llroundf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long long llround(long double __lcpp_x) _NOEXCEPT {return llroundl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, long long>::type
-llround(_A1 __lcpp_x) _NOEXCEPT {return llround((double)__lcpp_x);}
-
-// log1p
-
 using ::log1p;
 using ::log1pf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       log1p(float __lcpp_x) _NOEXCEPT       {return log1pf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double log1p(long double __lcpp_x) _NOEXCEPT {return log1pl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-log1p(_A1 __lcpp_x) _NOEXCEPT {return log1p((double)__lcpp_x);}
-
-// log2
-
 using ::log2;
 using ::log2f;
-
-inline _LIBCPP_INLINE_VISIBILITY float       log2(float __lcpp_x) _NOEXCEPT       {return log2f(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double log2(long double __lcpp_x) _NOEXCEPT {return log2l(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-log2(_A1 __lcpp_x) _NOEXCEPT {return log2((double)__lcpp_x);}
-
-// logb
-
 using ::logb;
 using ::logbf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       logb(float __lcpp_x) _NOEXCEPT       {return logbf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double logb(long double __lcpp_x) _NOEXCEPT {return logbl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-logb(_A1 __lcpp_x) _NOEXCEPT {return logb((double)__lcpp_x);}
-
-// lrint
-
 using ::lrint;
 using ::lrintf;
-
-inline _LIBCPP_INLINE_VISIBILITY long lrint(float __lcpp_x) _NOEXCEPT       {return lrintf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long lrint(long double __lcpp_x) _NOEXCEPT {return lrintl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, long>::type
-lrint(_A1 __lcpp_x) _NOEXCEPT {return lrint((double)__lcpp_x);}
-
-// lround
-
 using ::lround;
 using ::lroundf;
-
-inline _LIBCPP_INLINE_VISIBILITY long lround(float __lcpp_x) _NOEXCEPT       {return lroundf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long lround(long double __lcpp_x) _NOEXCEPT {return lroundl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, long>::type
-lround(_A1 __lcpp_x) _NOEXCEPT {return lround((double)__lcpp_x);}
-
 #endif // _LIBCPP_MSVCRT
 #endif // __sun__
 
-// nan
-
 #ifndef _LIBCPP_MSVCRT
 using ::nan;
 using ::nanf;
@@ -1447,183 +454,28 @@ using ::nanf;
 
 #ifndef __sun__
 #ifndef _LIBCPP_MSVCRT
-
-// nearbyint
-
 using ::nearbyint;
 using ::nearbyintf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       nearbyint(float __lcpp_x) _NOEXCEPT       {return nearbyintf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double nearbyint(long double __lcpp_x) _NOEXCEPT {return nearbyintl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-nearbyint(_A1 __lcpp_x) _NOEXCEPT {return nearbyint((double)__lcpp_x);}
-
-// nextafter
-
 using ::nextafter;
 using ::nextafterf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       nextafter(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return nextafterf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double nextafter(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return nextafterl(__lcpp_x, __lcpp_y);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-nextafter(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return nextafter((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// nexttoward
-
 using ::nexttoward;
 using ::nexttowardf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       nexttoward(float __lcpp_x, long double __lcpp_y) _NOEXCEPT       {return nexttowardf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double nexttoward(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return nexttowardl(__lcpp_x, __lcpp_y);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-nexttoward(_A1 __lcpp_x, long double __lcpp_y) _NOEXCEPT {return nexttoward((double)__lcpp_x, __lcpp_y);}
-
-// remainder
-
 using ::remainder;
 using ::remainderf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       remainder(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return remainderf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double remainder(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return remainderl(__lcpp_x, __lcpp_y);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-remainder(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return remainder((__result_type)__lcpp_x, (__result_type)__lcpp_y);
-}
-
-// remquo
-
 using ::remquo;
 using ::remquof;
-
-inline _LIBCPP_INLINE_VISIBILITY float       remquo(float __lcpp_x, float __lcpp_y, int* __lcpp_z) _NOEXCEPT             {return remquof(__lcpp_x, __lcpp_y, __lcpp_z);}
-inline _LIBCPP_INLINE_VISIBILITY long double remquo(long double __lcpp_x, long double __lcpp_y, int* __lcpp_z) _NOEXCEPT {return remquol(__lcpp_x, __lcpp_y, __lcpp_z);}
-
-template <class _A1, class _A2>
-inline _LIBCPP_INLINE_VISIBILITY
-typename __lazy_enable_if
-<
-    is_arithmetic<_A1>::value &&
-    is_arithmetic<_A2>::value,
-    __promote<_A1, _A2>
->::type
-remquo(_A1 __lcpp_x, _A2 __lcpp_y, int* __lcpp_z) _NOEXCEPT
-{
-    typedef typename __promote<_A1, _A2>::type __result_type;
-    static_assert((!(is_same<_A1, __result_type>::value &&
-                      is_same<_A2, __result_type>::value)), "");
-    return remquo((__result_type)__lcpp_x, (__result_type)__lcpp_y, __lcpp_z);
-}
-
-// rint
-
 using ::rint;
 using ::rintf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       rint(float __lcpp_x) _NOEXCEPT       {return rintf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double rint(long double __lcpp_x) _NOEXCEPT {return rintl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-rint(_A1 __lcpp_x) _NOEXCEPT {return rint((double)__lcpp_x);}
-
-// round
-
 using ::round;
 using ::roundf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       round(float __lcpp_x) _NOEXCEPT       {return roundf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double round(long double __lcpp_x) _NOEXCEPT {return roundl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-round(_A1 __lcpp_x) _NOEXCEPT {return round((double)__lcpp_x);}
-
-// scalbln
-
 using ::scalbln;
 using ::scalblnf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       scalbln(float __lcpp_x, long __lcpp_y) _NOEXCEPT       {return scalblnf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double scalbln(long double __lcpp_x, long __lcpp_y) _NOEXCEPT {return scalblnl(__lcpp_x, __lcpp_y);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-scalbln(_A1 __lcpp_x, long __lcpp_y) _NOEXCEPT {return scalbln((double)__lcpp_x, __lcpp_y);}
-
-// scalbn
-
 using ::scalbn;
 using ::scalbnf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       scalbn(float __lcpp_x, int __lcpp_y) _NOEXCEPT       {return scalbnf(__lcpp_x, __lcpp_y);}
-inline _LIBCPP_INLINE_VISIBILITY long double scalbn(long double __lcpp_x, int __lcpp_y) _NOEXCEPT {return scalbnl(__lcpp_x, __lcpp_y);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-scalbn(_A1 __lcpp_x, int __lcpp_y) _NOEXCEPT {return scalbn((double)__lcpp_x, __lcpp_y);}
-
-// tgamma
-
 using ::tgamma;
 using ::tgammaf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       tgamma(float __lcpp_x) _NOEXCEPT       {return tgammaf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double tgamma(long double __lcpp_x) _NOEXCEPT {return tgammal(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-tgamma(_A1 __lcpp_x) _NOEXCEPT {return tgamma((double)__lcpp_x);}
-
-// trunc
-
 using ::trunc;
 using ::truncf;
-
-inline _LIBCPP_INLINE_VISIBILITY float       trunc(float __lcpp_x) _NOEXCEPT       {return truncf(__lcpp_x);}
-inline _LIBCPP_INLINE_VISIBILITY long double trunc(long double __lcpp_x) _NOEXCEPT {return truncl(__lcpp_x);}
-
-template <class _A1>
-inline _LIBCPP_INLINE_VISIBILITY
-typename enable_if<is_integral<_A1>::value, double>::type
-trunc(_A1 __lcpp_x) _NOEXCEPT {return trunc((double)__lcpp_x);}
-
 #endif // !_LIBCPP_MSVCRT
 
 using ::acosl;
@@ -1647,6 +499,7 @@ using ::sinl;
 using ::sinhl;
 using ::sqrtl;
 using ::tanl;
+
 #ifndef _LIBCPP_MSVCRT
 using ::tanhl;
 using ::acoshl;
@@ -1654,7 +507,9 @@ using ::asinhl;
 using ::atanhl;
 using ::cbrtl;
 #endif  // !_LIBCPP_MSVCRT
+
 using ::copysignl;
+
 #ifndef _LIBCPP_MSVCRT
 using ::erfl;
 using ::erfcl;
@@ -1692,6 +547,7 @@ using ::truncl;
 using ::lgamma;
 using ::lgammaf;
 #endif // __sun__
+
 _LIBCPP_END_NAMESPACE_STD
 
 #endif  // _LIBCPP_CMATH
diff --git include/math.h include/math.h
new file mode 100644
index 0000000..dc05622
--- /dev/null
+++ include/math.h
@@ -0,0 +1,1418 @@
+// -*- C++ -*-
+//===---------------------------- math.h ----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_MATH_H
+#define _LIBCPP_MATH_H
+
+/*
+    math.h synopsis
+
+Macros:
+
+    HUGE_VAL
+    HUGE_VALF               // C99
+    HUGE_VALL               // C99
+    INFINITY                // C99
+    NAN                     // C99
+    FP_INFINITE             // C99
+    FP_NAN                  // C99
+    FP_NORMAL               // C99
+    FP_SUBNORMAL            // C99
+    FP_ZERO                 // C99
+    FP_FAST_FMA             // C99
+    FP_FAST_FMAF            // C99
+    FP_FAST_FMAL            // C99
+    FP_ILOGB0               // C99
+    FP_ILOGBNAN             // C99
+    MATH_ERRNO              // C99
+    MATH_ERREXCEPT          // C99
+    math_errhandling        // C99
+
+Types:
+
+    float_t                 // C99
+    double_t                // C99
+
+// C90
+
+floating_point abs(floating_point x);
+
+floating_point acos (arithmetic x);
+float          acosf(float x);
+long double    acosl(long double x);
+
+floating_point asin (arithmetic x);
+float          asinf(float x);
+long double    asinl(long double x);
+
+floating_point atan (arithmetic x);
+float          atanf(float x);
+long double    atanl(long double x);
+
+floating_point atan2 (arithmetic y, arithmetic x);
+float          atan2f(float y, float x);
+long double    atan2l(long double y, long double x);
+
+floating_point ceil (arithmetic x);
+float          ceilf(float x);
+long double    ceill(long double x);
+
+floating_point cos (arithmetic x);
+float          cosf(float x);
+long double    cosl(long double x);
+
+floating_point cosh (arithmetic x);
+float          coshf(float x);
+long double    coshl(long double x);
+
+floating_point exp (arithmetic x);
+float          expf(float x);
+long double    expl(long double x);
+
+floating_point fabs (arithmetic x);
+float          fabsf(float x);
+long double    fabsl(long double x);
+
+floating_point floor (arithmetic x);
+float          floorf(float x);
+long double    floorl(long double x);
+
+floating_point fmod (arithmetic x, arithmetic y);
+float          fmodf(float x, float y);
+long double    fmodl(long double x, long double y);
+
+floating_point frexp (arithmetic value, int* exp);
+float          frexpf(float value, int* exp);
+long double    frexpl(long double value, int* exp);
+
+floating_point ldexp (arithmetic value, int exp);
+float          ldexpf(float value, int exp);
+long double    ldexpl(long double value, int exp);
+
+floating_point log (arithmetic x);
+float          logf(float x);
+long double    logl(long double x);
+
+floating_point log10 (arithmetic x);
+float          log10f(float x);
+long double    log10l(long double x);
+
+floating_point modf (floating_point value, floating_point* iptr);
+float          modff(float value, float* iptr);
+long double    modfl(long double value, long double* iptr);
+
+floating_point pow (arithmetic x, arithmetic y);
+float          powf(float x, float y);
+long double    powl(long double x, long double y);
+
+floating_point sin (arithmetic x);
+float          sinf(float x);
+long double    sinl(long double x);
+
+floating_point sinh (arithmetic x);
+float          sinhf(float x);
+long double    sinhl(long double x);
+
+floating_point sqrt (arithmetic x);
+float          sqrtf(float x);
+long double    sqrtl(long double x);
+
+floating_point tan (arithmetic x);
+float          tanf(float x);
+long double    tanl(long double x);
+
+floating_point tanh (arithmetic x);
+float          tanhf(float x);
+long double    tanhl(long double x);
+
+//  C99
+
+bool signbit(arithmetic x);
+
+int fpclassify(arithmetic x);
+
+bool isfinite(arithmetic x);
+bool isinf(arithmetic x);
+bool isnan(arithmetic x);
+bool isnormal(arithmetic x);
+
+bool isgreater(arithmetic x, arithmetic y);
+bool isgreaterequal(arithmetic x, arithmetic y);
+bool isless(arithmetic x, arithmetic y);
+bool islessequal(arithmetic x, arithmetic y);
+bool islessgreater(arithmetic x, arithmetic y);
+bool isunordered(arithmetic x, arithmetic y);
+
+floating_point acosh (arithmetic x);
+float          acoshf(float x);
+long double    acoshl(long double x);
+
+floating_point asinh (arithmetic x);
+float          asinhf(float x);
+long double    asinhl(long double x);
+
+floating_point atanh (arithmetic x);
+float          atanhf(float x);
+long double    atanhl(long double x);
+
+floating_point cbrt (arithmetic x);
+float          cbrtf(float x);
+long double    cbrtl(long double x);
+
+floating_point copysign (arithmetic x, arithmetic y);
+float          copysignf(float x, float y);
+long double    copysignl(long double x, long double y);
+
+floating_point erf (arithmetic x);
+float          erff(float x);
+long double    erfl(long double x);
+
+floating_point erfc (arithmetic x);
+float          erfcf(float x);
+long double    erfcl(long double x);
+
+floating_point exp2 (arithmetic x);
+float          exp2f(float x);
+long double    exp2l(long double x);
+
+floating_point expm1 (arithmetic x);
+float          expm1f(float x);
+long double    expm1l(long double x);
+
+floating_point fdim (arithmetic x, arithmetic y);
+float          fdimf(float x, float y);
+long double    fdiml(long double x, long double y);
+
+floating_point fma (arithmetic x, arithmetic y, arithmetic z);
+float          fmaf(float x, float y, float z);
+long double    fmal(long double x, long double y, long double z);
+
+floating_point fmax (arithmetic x, arithmetic y);
+float          fmaxf(float x, float y);
+long double    fmaxl(long double x, long double y);
+
+floating_point fmin (arithmetic x, arithmetic y);
+float          fminf(float x, float y);
+long double    fminl(long double x, long double y);
+
+floating_point hypot (arithmetic x, arithmetic y);
+float          hypotf(float x, float y);
+long double    hypotl(long double x, long double y);
+
+int ilogb (arithmetic x);
+int ilogbf(float x);
+int ilogbl(long double x);
+
+floating_point lgamma (arithmetic x);
+float          lgammaf(float x);
+long double    lgammal(long double x);
+
+long long llrint (arithmetic x);
+long long llrintf(float x);
+long long llrintl(long double x);
+
+long long llround (arithmetic x);
+long long llroundf(float x);
+long long llroundl(long double x);
+
+floating_point log1p (arithmetic x);
+float          log1pf(float x);
+long double    log1pl(long double x);
+
+floating_point log2 (arithmetic x);
+float          log2f(float x);
+long double    log2l(long double x);
+
+floating_point logb (arithmetic x);
+float          logbf(float x);
+long double    logbl(long double x);
+
+long lrint (arithmetic x);
+long lrintf(float x);
+long lrintl(long double x);
+
+long lround (arithmetic x);
+long lroundf(float x);
+long lroundl(long double x);
+
+double      nan (const char* str);
+float       nanf(const char* str);
+long double nanl(const char* str);
+
+floating_point nearbyint (arithmetic x);
+float          nearbyintf(float x);
+long double    nearbyintl(long double x);
+
+floating_point nextafter (arithmetic x, arithmetic y);
+float          nextafterf(float x, float y);
+long double    nextafterl(long double x, long double y);
+
+floating_point nexttoward (arithmetic x, long double y);
+float          nexttowardf(float x, long double y);
+long double    nexttowardl(long double x, long double y);
+
+floating_point remainder (arithmetic x, arithmetic y);
+float          remainderf(float x, float y);
+long double    remainderl(long double x, long double y);
+
+floating_point remquo (arithmetic x, arithmetic y, int* pquo);
+float          remquof(float x, float y, int* pquo);
+long double    remquol(long double x, long double y, int* pquo);
+
+floating_point rint (arithmetic x);
+float          rintf(float x);
+long double    rintl(long double x);
+
+floating_point round (arithmetic x);
+float          roundf(float x);
+long double    roundl(long double x);
+
+floating_point scalbln (arithmetic x, long ex);
+float          scalblnf(float x, long ex);
+long double    scalblnl(long double x, long ex);
+
+floating_point scalbn (arithmetic x, int ex);
+float          scalbnf(float x, int ex);
+long double    scalbnl(long double x, int ex);
+
+floating_point tgamma (arithmetic x);
+float          tgammaf(float x);
+long double    tgammal(long double x);
+
+floating_point trunc (arithmetic x);
+float          truncf(float x);
+long double    truncl(long double x);
+
+*/
+
+#include <__config>
+#include_next <math.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+
+// We support including .h headers inside 'extern "C"' contexts, so switch
+// back to C++ linkage before including these C++ headers.
+extern "C++" {
+
+#include <type_traits>
+
+#ifdef _LIBCPP_MSVCRT
+#include "support/win32/math_win32.h"
+#endif
+
+// signbit
+
+#ifdef signbit
+
+template <class _A1>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_signbit(_A1 __lcpp_x) _NOEXCEPT
+{
+    return signbit(__lcpp_x);
+}
+
+#undef signbit
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
+signbit(_A1 __lcpp_x) _NOEXCEPT
+{
+    return __libcpp_signbit((typename std::__promote<_A1>::type)__lcpp_x);
+}
+
+#endif  // signbit
+
+// fpclassify
+
+#ifdef fpclassify
+
+template <class _A1>
+_LIBCPP_ALWAYS_INLINE
+int
+__libcpp_fpclassify(_A1 __lcpp_x) _NOEXCEPT
+{
+    return fpclassify(__lcpp_x);
+}
+
+#undef fpclassify
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_arithmetic<_A1>::value, int>::type
+fpclassify(_A1 __lcpp_x) _NOEXCEPT
+{
+    return __libcpp_fpclassify((typename std::__promote<_A1>::type)__lcpp_x);
+}
+
+#endif  // fpclassify
+
+// isfinite
+
+#ifdef isfinite
+
+template <class _A1>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isfinite(_A1 __lcpp_x) _NOEXCEPT
+{
+    return isfinite(__lcpp_x);
+}
+
+#undef isfinite
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
+isfinite(_A1 __lcpp_x) _NOEXCEPT
+{
+    return __libcpp_isfinite((typename std::__promote<_A1>::type)__lcpp_x);
+}
+
+#endif  // isfinite
+
+// isinf
+
+#ifdef isinf
+
+template <class _A1>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isinf(_A1 __lcpp_x) _NOEXCEPT
+{
+    return isinf(__lcpp_x);
+}
+
+#undef isinf
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
+isinf(_A1 __lcpp_x) _NOEXCEPT
+{
+    return __libcpp_isinf((typename std::__promote<_A1>::type)__lcpp_x);
+}
+
+#endif  // isinf
+
+// isnan
+
+#ifdef isnan
+
+template <class _A1>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isnan(_A1 __lcpp_x) _NOEXCEPT
+{
+    return isnan(__lcpp_x);
+}
+
+#undef isnan
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
+isnan(_A1 __lcpp_x) _NOEXCEPT
+{
+    return __libcpp_isnan((typename std::__promote<_A1>::type)__lcpp_x);
+}
+
+#endif  // isnan
+
+// isnormal
+
+#ifdef isnormal
+
+template <class _A1>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isnormal(_A1 __lcpp_x) _NOEXCEPT
+{
+    return isnormal(__lcpp_x);
+}
+
+#undef isnormal
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_arithmetic<_A1>::value, bool>::type
+isnormal(_A1 __lcpp_x) _NOEXCEPT
+{
+    return __libcpp_isnormal((typename std::__promote<_A1>::type)__lcpp_x);
+}
+
+#endif  // isnormal
+
+// isgreater
+
+#ifdef isgreater
+
+template <class _A1, class _A2>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    return isgreater(__lcpp_x, __lcpp_y);
+}
+
+#undef isgreater
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    bool
+>::type
+isgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type type;
+    return __libcpp_isgreater((type)__lcpp_x, (type)__lcpp_y);
+}
+
+#endif  // isgreater
+
+// isgreaterequal
+
+#ifdef isgreaterequal
+
+template <class _A1, class _A2>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isgreaterequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    return isgreaterequal(__lcpp_x, __lcpp_y);
+}
+
+#undef isgreaterequal
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    bool
+>::type
+isgreaterequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type type;
+    return __libcpp_isgreaterequal((type)__lcpp_x, (type)__lcpp_y);
+}
+
+#endif  // isgreaterequal
+
+// isless
+
+#ifdef isless
+
+template <class _A1, class _A2>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isless(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    return isless(__lcpp_x, __lcpp_y);
+}
+
+#undef isless
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    bool
+>::type
+isless(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type type;
+    return __libcpp_isless((type)__lcpp_x, (type)__lcpp_y);
+}
+
+#endif  // isless
+
+// islessequal
+
+#ifdef islessequal
+
+template <class _A1, class _A2>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_islessequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    return islessequal(__lcpp_x, __lcpp_y);
+}
+
+#undef islessequal
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    bool
+>::type
+islessequal(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type type;
+    return __libcpp_islessequal((type)__lcpp_x, (type)__lcpp_y);
+}
+
+#endif  // islessequal
+
+// islessgreater
+
+#ifdef islessgreater
+
+template <class _A1, class _A2>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_islessgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    return islessgreater(__lcpp_x, __lcpp_y);
+}
+
+#undef islessgreater
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    bool
+>::type
+islessgreater(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type type;
+    return __libcpp_islessgreater((type)__lcpp_x, (type)__lcpp_y);
+}
+
+#endif  // islessgreater
+
+// isunordered
+
+#ifdef isunordered
+
+template <class _A1, class _A2>
+_LIBCPP_ALWAYS_INLINE
+bool
+__libcpp_isunordered(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    return isunordered(__lcpp_x, __lcpp_y);
+}
+
+#undef isunordered
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    bool
+>::type
+isunordered(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type type;
+    return __libcpp_isunordered((type)__lcpp_x, (type)__lcpp_y);
+}
+
+#endif  // isunordered
+
+#ifndef __sun__
+
+// abs
+
+#if !defined(_AIX)
+inline _LIBCPP_INLINE_VISIBILITY
+float
+abs(float __lcpp_x) _NOEXCEPT {return fabsf(__lcpp_x);}
+
+inline _LIBCPP_INLINE_VISIBILITY
+double
+abs(double __lcpp_x) _NOEXCEPT {return fabs(__lcpp_x);}
+
+inline _LIBCPP_INLINE_VISIBILITY
+long double
+abs(long double __lcpp_x) _NOEXCEPT {return fabsl(__lcpp_x);}
+#endif // !defined(_AIX)
+
+// acos
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       acos(float __lcpp_x) _NOEXCEPT       {return acosf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double acos(long double __lcpp_x) _NOEXCEPT {return acosl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+acos(_A1 __lcpp_x) _NOEXCEPT {return acos((double)__lcpp_x);}
+
+// asin
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       asin(float __lcpp_x) _NOEXCEPT       {return asinf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double asin(long double __lcpp_x) _NOEXCEPT {return asinl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+asin(_A1 __lcpp_x) _NOEXCEPT {return asin((double)__lcpp_x);}
+
+// atan
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       atan(float __lcpp_x) _NOEXCEPT       {return atanf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double atan(long double __lcpp_x) _NOEXCEPT {return atanl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+atan(_A1 __lcpp_x) _NOEXCEPT {return atan((double)__lcpp_x);}
+
+// atan2
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       atan2(float __lcpp_y, float __lcpp_x) _NOEXCEPT             {return atan2f(__lcpp_y, __lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double atan2(long double __lcpp_y, long double __lcpp_x) _NOEXCEPT {return atan2l(__lcpp_y, __lcpp_x);}
+#endif
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+atan2(_A1 __lcpp_y, _A2 __lcpp_x) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return atan2((__result_type)__lcpp_y, (__result_type)__lcpp_x);
+}
+
+// ceil
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       ceil(float __lcpp_x) _NOEXCEPT       {return ceilf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double ceil(long double __lcpp_x) _NOEXCEPT {return ceill(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+ceil(_A1 __lcpp_x) _NOEXCEPT {return ceil((double)__lcpp_x);}
+
+// cos
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       cos(float __lcpp_x) _NOEXCEPT       {return cosf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double cos(long double __lcpp_x) _NOEXCEPT {return cosl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+cos(_A1 __lcpp_x) _NOEXCEPT {return cos((double)__lcpp_x);}
+
+// cosh
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       cosh(float __lcpp_x) _NOEXCEPT       {return coshf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double cosh(long double __lcpp_x) _NOEXCEPT {return coshl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+cosh(_A1 __lcpp_x) _NOEXCEPT {return cosh((double)__lcpp_x);}
+
+// exp
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       exp(float __lcpp_x) _NOEXCEPT       {return expf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double exp(long double __lcpp_x) _NOEXCEPT {return expl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+exp(_A1 __lcpp_x) _NOEXCEPT {return exp((double)__lcpp_x);}
+
+// fabs
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       fabs(float __lcpp_x) _NOEXCEPT       {return fabsf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double fabs(long double __lcpp_x) _NOEXCEPT {return fabsl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+fabs(_A1 __lcpp_x) _NOEXCEPT {return fabs((double)__lcpp_x);}
+
+// floor
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       floor(float __lcpp_x) _NOEXCEPT       {return floorf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double floor(long double __lcpp_x) _NOEXCEPT {return floorl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+floor(_A1 __lcpp_x) _NOEXCEPT {return floor((double)__lcpp_x);}
+
+// fmod
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       fmod(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fmodf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double fmod(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fmodl(__lcpp_x, __lcpp_y);}
+#endif
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+fmod(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return fmod((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// frexp
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       frexp(float __lcpp_x, int* __lcpp_e) _NOEXCEPT       {return frexpf(__lcpp_x, __lcpp_e);}
+inline _LIBCPP_INLINE_VISIBILITY long double frexp(long double __lcpp_x, int* __lcpp_e) _NOEXCEPT {return frexpl(__lcpp_x, __lcpp_e);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+frexp(_A1 __lcpp_x, int* __lcpp_e) _NOEXCEPT {return frexp((double)__lcpp_x, __lcpp_e);}
+
+// ldexp
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       ldexp(float __lcpp_x, int __lcpp_e) _NOEXCEPT       {return ldexpf(__lcpp_x, __lcpp_e);}
+inline _LIBCPP_INLINE_VISIBILITY long double ldexp(long double __lcpp_x, int __lcpp_e) _NOEXCEPT {return ldexpl(__lcpp_x, __lcpp_e);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+ldexp(_A1 __lcpp_x, int __lcpp_e) _NOEXCEPT {return ldexp((double)__lcpp_x, __lcpp_e);}
+
+// log
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       log(float __lcpp_x) _NOEXCEPT       {return logf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double log(long double __lcpp_x) _NOEXCEPT {return logl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+log(_A1 __lcpp_x) _NOEXCEPT {return log((double)__lcpp_x);}
+
+// log10
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       log10(float __lcpp_x) _NOEXCEPT       {return log10f(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double log10(long double __lcpp_x) _NOEXCEPT {return log10l(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+log10(_A1 __lcpp_x) _NOEXCEPT {return log10((double)__lcpp_x);}
+
+// modf
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       modf(float __lcpp_x, float* __lcpp_y) _NOEXCEPT             {return modff(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double modf(long double __lcpp_x, long double* __lcpp_y) _NOEXCEPT {return modfl(__lcpp_x, __lcpp_y);}
+#endif
+
+// pow
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       pow(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return powf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double pow(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return powl(__lcpp_x, __lcpp_y);}
+#endif
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+pow(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return pow((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// sin
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       sin(float __lcpp_x) _NOEXCEPT       {return sinf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double sin(long double __lcpp_x) _NOEXCEPT {return sinl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+sin(_A1 __lcpp_x) _NOEXCEPT {return sin((double)__lcpp_x);}
+
+// sinh
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       sinh(float __lcpp_x) _NOEXCEPT       {return sinhf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double sinh(long double __lcpp_x) _NOEXCEPT {return sinhl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+sinh(_A1 __lcpp_x) _NOEXCEPT {return sinh((double)__lcpp_x);}
+
+// sqrt
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       sqrt(float __lcpp_x) _NOEXCEPT       {return sqrtf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double sqrt(long double __lcpp_x) _NOEXCEPT {return sqrtl(__lcpp_x);}
+#endif
+
+#endif // __sun__
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+sqrt(_A1 __lcpp_x) _NOEXCEPT {return sqrt((double)__lcpp_x);}
+#ifndef __sun__
+
+// tan
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       tan(float __lcpp_x) _NOEXCEPT       {return tanf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double tan(long double __lcpp_x) _NOEXCEPT {return tanl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+tan(_A1 __lcpp_x) _NOEXCEPT {return tan((double)__lcpp_x);}
+
+// tanh
+
+#if !(defined(_LIBCPP_MSVCRT) || defined(_AIX))
+inline _LIBCPP_INLINE_VISIBILITY float       tanh(float __lcpp_x) _NOEXCEPT       {return tanhf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double tanh(long double __lcpp_x) _NOEXCEPT {return tanhl(__lcpp_x);}
+#endif
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+tanh(_A1 __lcpp_x) _NOEXCEPT {return tanh((double)__lcpp_x);}
+
+// acosh
+
+#ifndef _LIBCPP_MSVCRT
+inline _LIBCPP_INLINE_VISIBILITY float       acosh(float __lcpp_x) _NOEXCEPT       {return acoshf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double acosh(long double __lcpp_x) _NOEXCEPT {return acoshl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+acosh(_A1 __lcpp_x) _NOEXCEPT {return acosh((double)__lcpp_x);}
+#endif
+
+// asinh
+
+#ifndef _LIBCPP_MSVCRT
+inline _LIBCPP_INLINE_VISIBILITY float       asinh(float __lcpp_x) _NOEXCEPT       {return asinhf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double asinh(long double __lcpp_x) _NOEXCEPT {return asinhl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+asinh(_A1 __lcpp_x) _NOEXCEPT {return asinh((double)__lcpp_x);}
+#endif
+
+// atanh
+
+#ifndef _LIBCPP_MSVCRT
+inline _LIBCPP_INLINE_VISIBILITY float       atanh(float __lcpp_x) _NOEXCEPT       {return atanhf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double atanh(long double __lcpp_x) _NOEXCEPT {return atanhl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+atanh(_A1 __lcpp_x) _NOEXCEPT {return atanh((double)__lcpp_x);}
+#endif
+
+// cbrt
+
+#ifndef _LIBCPP_MSVCRT
+inline _LIBCPP_INLINE_VISIBILITY float       cbrt(float __lcpp_x) _NOEXCEPT       {return cbrtf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double cbrt(long double __lcpp_x) _NOEXCEPT {return cbrtl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+cbrt(_A1 __lcpp_x) _NOEXCEPT {return cbrt((double)__lcpp_x);}
+#endif
+
+// copysign
+
+#if !defined(_VC_CRT_MAJOR_VERSION) || (_VC_CRT_MAJOR_VERSION < 12)
+inline _LIBCPP_INLINE_VISIBILITY float copysign(float __lcpp_x,
+                                                float __lcpp_y) _NOEXCEPT {
+  return copysignf(__lcpp_x, __lcpp_y);
+}
+inline _LIBCPP_INLINE_VISIBILITY long double
+copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
+  return copysignl(__lcpp_x, __lcpp_y);
+}
+#endif
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return copysign((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+#ifndef _LIBCPP_MSVCRT
+
+// erf
+
+inline _LIBCPP_INLINE_VISIBILITY float       erf(float __lcpp_x) _NOEXCEPT       {return erff(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double erf(long double __lcpp_x) _NOEXCEPT {return erfl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+erf(_A1 __lcpp_x) _NOEXCEPT {return erf((double)__lcpp_x);}
+
+// erfc
+
+inline _LIBCPP_INLINE_VISIBILITY float       erfc(float __lcpp_x) _NOEXCEPT       {return erfcf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double erfc(long double __lcpp_x) _NOEXCEPT {return erfcl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+erfc(_A1 __lcpp_x) _NOEXCEPT {return erfc((double)__lcpp_x);}
+
+// exp2
+
+inline _LIBCPP_INLINE_VISIBILITY float       exp2(float __lcpp_x) _NOEXCEPT       {return exp2f(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double exp2(long double __lcpp_x) _NOEXCEPT {return exp2l(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+exp2(_A1 __lcpp_x) _NOEXCEPT {return exp2((double)__lcpp_x);}
+
+// expm1
+
+inline _LIBCPP_INLINE_VISIBILITY float       expm1(float __lcpp_x) _NOEXCEPT       {return expm1f(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double expm1(long double __lcpp_x) _NOEXCEPT {return expm1l(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+expm1(_A1 __lcpp_x) _NOEXCEPT {return expm1((double)__lcpp_x);}
+
+// fdim
+
+inline _LIBCPP_INLINE_VISIBILITY float       fdim(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fdimf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double fdim(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fdiml(__lcpp_x, __lcpp_y);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+fdim(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return fdim((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// fma
+
+inline _LIBCPP_INLINE_VISIBILITY float       fma(float __lcpp_x, float __lcpp_y, float __lcpp_z) _NOEXCEPT                   {return fmaf(__lcpp_x, __lcpp_y, __lcpp_z);}
+inline _LIBCPP_INLINE_VISIBILITY long double fma(long double __lcpp_x, long double __lcpp_y, long double __lcpp_z) _NOEXCEPT {return fmal(__lcpp_x, __lcpp_y, __lcpp_z);}
+
+template <class _A1, class _A2, class _A3>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value &&
+    std::is_arithmetic<_A3>::value,
+    std::__promote<_A1, _A2, _A3>
+>::type
+fma(_A1 __lcpp_x, _A2 __lcpp_y, _A3 __lcpp_z) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2, _A3>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value &&
+                     std::is_same<_A3, __result_type>::value)), "");
+    return fma((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
+}
+
+// fmax
+
+inline _LIBCPP_INLINE_VISIBILITY float       fmax(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fmaxf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double fmax(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fmaxl(__lcpp_x, __lcpp_y);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+fmax(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return fmax((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// fmin
+
+inline _LIBCPP_INLINE_VISIBILITY float       fmin(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return fminf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double fmin(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return fminl(__lcpp_x, __lcpp_y);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+fmin(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return fmin((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// hypot
+
+inline _LIBCPP_INLINE_VISIBILITY float       hypot(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return hypotf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double hypot(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return hypotl(__lcpp_x, __lcpp_y);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+hypot(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return hypot((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// ilogb
+
+inline _LIBCPP_INLINE_VISIBILITY int ilogb(float __lcpp_x) _NOEXCEPT       {return ilogbf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY int ilogb(long double __lcpp_x) _NOEXCEPT {return ilogbl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, int>::type
+ilogb(_A1 __lcpp_x) _NOEXCEPT {return ilogb((double)__lcpp_x);}
+
+// lgamma
+
+inline _LIBCPP_INLINE_VISIBILITY float       lgamma(float __lcpp_x) _NOEXCEPT       {return lgammaf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double lgamma(long double __lcpp_x) _NOEXCEPT {return lgammal(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+lgamma(_A1 __lcpp_x) _NOEXCEPT {return lgamma((double)__lcpp_x);}
+
+// llrint
+
+inline _LIBCPP_INLINE_VISIBILITY long long llrint(float __lcpp_x) _NOEXCEPT       {return llrintf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long long llrint(long double __lcpp_x) _NOEXCEPT {return llrintl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, long long>::type
+llrint(_A1 __lcpp_x) _NOEXCEPT {return llrint((double)__lcpp_x);}
+
+// llround
+
+inline _LIBCPP_INLINE_VISIBILITY long long llround(float __lcpp_x) _NOEXCEPT       {return llroundf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long long llround(long double __lcpp_x) _NOEXCEPT {return llroundl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, long long>::type
+llround(_A1 __lcpp_x) _NOEXCEPT {return llround((double)__lcpp_x);}
+
+// log1p
+
+inline _LIBCPP_INLINE_VISIBILITY float       log1p(float __lcpp_x) _NOEXCEPT       {return log1pf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double log1p(long double __lcpp_x) _NOEXCEPT {return log1pl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+log1p(_A1 __lcpp_x) _NOEXCEPT {return log1p((double)__lcpp_x);}
+
+// log2
+
+inline _LIBCPP_INLINE_VISIBILITY float       log2(float __lcpp_x) _NOEXCEPT       {return log2f(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double log2(long double __lcpp_x) _NOEXCEPT {return log2l(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+log2(_A1 __lcpp_x) _NOEXCEPT {return log2((double)__lcpp_x);}
+
+// logb
+
+inline _LIBCPP_INLINE_VISIBILITY float       logb(float __lcpp_x) _NOEXCEPT       {return logbf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double logb(long double __lcpp_x) _NOEXCEPT {return logbl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+logb(_A1 __lcpp_x) _NOEXCEPT {return logb((double)__lcpp_x);}
+
+// lrint
+
+inline _LIBCPP_INLINE_VISIBILITY long lrint(float __lcpp_x) _NOEXCEPT       {return lrintf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long lrint(long double __lcpp_x) _NOEXCEPT {return lrintl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, long>::type
+lrint(_A1 __lcpp_x) _NOEXCEPT {return lrint((double)__lcpp_x);}
+
+// lround
+
+inline _LIBCPP_INLINE_VISIBILITY long lround(float __lcpp_x) _NOEXCEPT       {return lroundf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long lround(long double __lcpp_x) _NOEXCEPT {return lroundl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, long>::type
+lround(_A1 __lcpp_x) _NOEXCEPT {return lround((double)__lcpp_x);}
+
+// nan
+
+// nearbyint
+
+inline _LIBCPP_INLINE_VISIBILITY float       nearbyint(float __lcpp_x) _NOEXCEPT       {return nearbyintf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double nearbyint(long double __lcpp_x) _NOEXCEPT {return nearbyintl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+nearbyint(_A1 __lcpp_x) _NOEXCEPT {return nearbyint((double)__lcpp_x);}
+
+// nextafter
+
+inline _LIBCPP_INLINE_VISIBILITY float       nextafter(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return nextafterf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double nextafter(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return nextafterl(__lcpp_x, __lcpp_y);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+nextafter(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return nextafter((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// nexttoward
+
+inline _LIBCPP_INLINE_VISIBILITY float       nexttoward(float __lcpp_x, long double __lcpp_y) _NOEXCEPT       {return nexttowardf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double nexttoward(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return nexttowardl(__lcpp_x, __lcpp_y);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+nexttoward(_A1 __lcpp_x, long double __lcpp_y) _NOEXCEPT {return nexttoward((double)__lcpp_x, __lcpp_y);}
+
+// remainder
+
+inline _LIBCPP_INLINE_VISIBILITY float       remainder(float __lcpp_x, float __lcpp_y) _NOEXCEPT             {return remainderf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double remainder(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return remainderl(__lcpp_x, __lcpp_y);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+remainder(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return remainder((__result_type)__lcpp_x, (__result_type)__lcpp_y);
+}
+
+// remquo
+
+inline _LIBCPP_INLINE_VISIBILITY float       remquo(float __lcpp_x, float __lcpp_y, int* __lcpp_z) _NOEXCEPT             {return remquof(__lcpp_x, __lcpp_y, __lcpp_z);}
+inline _LIBCPP_INLINE_VISIBILITY long double remquo(long double __lcpp_x, long double __lcpp_y, int* __lcpp_z) _NOEXCEPT {return remquol(__lcpp_x, __lcpp_y, __lcpp_z);}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::__lazy_enable_if
+<
+    std::is_arithmetic<_A1>::value &&
+    std::is_arithmetic<_A2>::value,
+    std::__promote<_A1, _A2>
+>::type
+remquo(_A1 __lcpp_x, _A2 __lcpp_y, int* __lcpp_z) _NOEXCEPT
+{
+    typedef typename std::__promote<_A1, _A2>::type __result_type;
+    static_assert((!(std::is_same<_A1, __result_type>::value &&
+                     std::is_same<_A2, __result_type>::value)), "");
+    return remquo((__result_type)__lcpp_x, (__result_type)__lcpp_y, __lcpp_z);
+}
+
+// rint
+
+inline _LIBCPP_INLINE_VISIBILITY float       rint(float __lcpp_x) _NOEXCEPT       {return rintf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double rint(long double __lcpp_x) _NOEXCEPT {return rintl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+rint(_A1 __lcpp_x) _NOEXCEPT {return rint((double)__lcpp_x);}
+
+// round
+
+inline _LIBCPP_INLINE_VISIBILITY float       round(float __lcpp_x) _NOEXCEPT       {return roundf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double round(long double __lcpp_x) _NOEXCEPT {return roundl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+round(_A1 __lcpp_x) _NOEXCEPT {return round((double)__lcpp_x);}
+
+// scalbln
+
+inline _LIBCPP_INLINE_VISIBILITY float       scalbln(float __lcpp_x, long __lcpp_y) _NOEXCEPT       {return scalblnf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double scalbln(long double __lcpp_x, long __lcpp_y) _NOEXCEPT {return scalblnl(__lcpp_x, __lcpp_y);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+scalbln(_A1 __lcpp_x, long __lcpp_y) _NOEXCEPT {return scalbln((double)__lcpp_x, __lcpp_y);}
+
+// scalbn
+
+inline _LIBCPP_INLINE_VISIBILITY float       scalbn(float __lcpp_x, int __lcpp_y) _NOEXCEPT       {return scalbnf(__lcpp_x, __lcpp_y);}
+inline _LIBCPP_INLINE_VISIBILITY long double scalbn(long double __lcpp_x, int __lcpp_y) _NOEXCEPT {return scalbnl(__lcpp_x, __lcpp_y);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+scalbn(_A1 __lcpp_x, int __lcpp_y) _NOEXCEPT {return scalbn((double)__lcpp_x, __lcpp_y);}
+
+// tgamma
+
+inline _LIBCPP_INLINE_VISIBILITY float       tgamma(float __lcpp_x) _NOEXCEPT       {return tgammaf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double tgamma(long double __lcpp_x) _NOEXCEPT {return tgammal(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+tgamma(_A1 __lcpp_x) _NOEXCEPT {return tgamma((double)__lcpp_x);}
+
+// trunc
+
+inline _LIBCPP_INLINE_VISIBILITY float       trunc(float __lcpp_x) _NOEXCEPT       {return truncf(__lcpp_x);}
+inline _LIBCPP_INLINE_VISIBILITY long double trunc(long double __lcpp_x) _NOEXCEPT {return truncl(__lcpp_x);}
+
+template <class _A1>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::enable_if<std::is_integral<_A1>::value, double>::type
+trunc(_A1 __lcpp_x) _NOEXCEPT {return trunc((double)__lcpp_x);}
+
+#endif // !_LIBCPP_MSVCRT
+#endif // __sun__
+
+} // extern "C++"
+
+#endif // __cplusplus
+
+#endif  // _LIBCPP_MATH_H
diff --git test/std/depr/depr.c.headers/math_h.pass.cpp test/std/depr/depr.c.headers/math_h.pass.cpp
index b03a61b..ed12fcf 100644
--- test/std/depr/depr.c.headers/math_h.pass.cpp
+++ test/std/depr/depr.c.headers/math_h.pass.cpp
@@ -9,7 +9,8 @@
 
 // <math.h>
 
-// XFAIL: linux
+// NOTE: isinf and isnan are tested separately because they are expected to fail
+// on linux. We don't want their expected failure to hide other failures in this file.
 
 #include <math.h>
 #include <type_traits>
@@ -17,498 +18,1168 @@
 
 #include "hexfloat.h"
 
+// convertible to int/float/double/etc
+template <class T, int N=0>
+struct Value {
+    operator T () { return T(N); }
+};
+
+// See PR21083
+// Ambiguous is a user-defined type that defines its own overloads of cmath
+// functions. When the std overloads are candidates too (by using or adl),
+// they should not interfere.
+struct Ambiguous : std::true_type { // ADL
+    operator float () { return 0.f; }
+    operator double () { return 0.; }
+};
+Ambiguous abs(Ambiguous){ return Ambiguous(); }
+Ambiguous acos(Ambiguous){ return Ambiguous(); }
+Ambiguous asin(Ambiguous){ return Ambiguous(); }
+Ambiguous atan(Ambiguous){ return Ambiguous(); }
+Ambiguous atan2(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous ceil(Ambiguous){ return Ambiguous(); }
+Ambiguous cos(Ambiguous){ return Ambiguous(); }
+Ambiguous cosh(Ambiguous){ return Ambiguous(); }
+Ambiguous exp(Ambiguous){ return Ambiguous(); }
+Ambiguous fabs(Ambiguous){ return Ambiguous(); }
+Ambiguous floor(Ambiguous){ return Ambiguous(); }
+Ambiguous fmod(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous frexp(Ambiguous, int*){ return Ambiguous(); }
+Ambiguous ldexp(Ambiguous, int){ return Ambiguous(); }
+Ambiguous log(Ambiguous){ return Ambiguous(); }
+Ambiguous log10(Ambiguous){ return Ambiguous(); }
+Ambiguous modf(Ambiguous, Ambiguous*){ return Ambiguous(); }
+Ambiguous pow(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous sin(Ambiguous){ return Ambiguous(); }
+Ambiguous sinh(Ambiguous){ return Ambiguous(); }
+Ambiguous sqrt(Ambiguous){ return Ambiguous(); }
+Ambiguous tan(Ambiguous){ return Ambiguous(); }
+Ambiguous tanh(Ambiguous){ return Ambiguous(); }
+Ambiguous signbit(Ambiguous){ return Ambiguous(); }
+Ambiguous fpclassify(Ambiguous){ return Ambiguous(); }
+Ambiguous isfinite(Ambiguous){ return Ambiguous(); }
+Ambiguous isnormal(Ambiguous){ return Ambiguous(); }
+Ambiguous isgreater(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous isgreaterequal(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous isless(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous islessequal(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous islessgreater(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous isunordered(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous acosh(Ambiguous){ return Ambiguous(); }
+Ambiguous asinh(Ambiguous){ return Ambiguous(); }
+Ambiguous atanh(Ambiguous){ return Ambiguous(); }
+Ambiguous cbrt(Ambiguous){ return Ambiguous(); }
+Ambiguous copysign(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous erf(Ambiguous){ return Ambiguous(); }
+Ambiguous erfc(Ambiguous){ return Ambiguous(); }
+Ambiguous exp2(Ambiguous){ return Ambiguous(); }
+Ambiguous expm1(Ambiguous){ return Ambiguous(); }
+Ambiguous fdim(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous fma(Ambiguous, Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous fmax(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous fmin(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous hypot(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous ilogb(Ambiguous){ return Ambiguous(); }
+Ambiguous lgamma(Ambiguous){ return Ambiguous(); }
+Ambiguous llrint(Ambiguous){ return Ambiguous(); }
+Ambiguous llround(Ambiguous){ return Ambiguous(); }
+Ambiguous log1p(Ambiguous){ return Ambiguous(); }
+Ambiguous log2(Ambiguous){ return Ambiguous(); }
+Ambiguous logb(Ambiguous){ return Ambiguous(); }
+Ambiguous lrint(Ambiguous){ return Ambiguous(); }
+Ambiguous lround(Ambiguous){ return Ambiguous(); }
+Ambiguous nearbyint(Ambiguous){ return Ambiguous(); }
+Ambiguous nextafter(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous nexttoward(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous remainder(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous remquo(Ambiguous, Ambiguous, int*){ return Ambiguous(); }
+Ambiguous rint(Ambiguous){ return Ambiguous(); }
+Ambiguous round(Ambiguous){ return Ambiguous(); }
+Ambiguous scalbln(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous scalbn(Ambiguous, Ambiguous){ return Ambiguous(); }
+Ambiguous tgamma(Ambiguous){ return Ambiguous(); }
+Ambiguous trunc(Ambiguous){ return Ambiguous(); }
+
+void test_abs()
+{
+    static_assert((std::is_same<decltype(abs((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(abs((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(abs((long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(abs(Ambiguous())), Ambiguous>::value), "");
+    assert(abs(-1.) == 1);
+}
+
 void test_acos()
 {
+    static_assert((std::is_same<decltype(acos((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(acos((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(acos((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acos((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(acosf(0)), float>::value), "");
     static_assert((std::is_same<decltype(acosl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(acos(Ambiguous())), Ambiguous>::value), "");
     assert(acos(1) == 0);
 }
 
 void test_asin()
 {
+    static_assert((std::is_same<decltype(asin((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(asin((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(asin((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asin((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(asinf(0)), float>::value), "");
     static_assert((std::is_same<decltype(asinl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(asin(Ambiguous())), Ambiguous>::value), "");
     assert(asin(0) == 0);
 }
 
 void test_atan()
 {
+    static_assert((std::is_same<decltype(atan((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(atan((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(atan((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(atanf(0)), float>::value), "");
     static_assert((std::is_same<decltype(atanl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atan(Ambiguous())), Ambiguous>::value), "");
     assert(atan(0) == 0);
 }
 
 void test_atan2()
 {
+    static_assert((std::is_same<decltype(atan2((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(atan2((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atan2((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atan2((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(atan2((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atan2((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atan2((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(atan2f(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(atan2l(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atan2((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atan2(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(atan2(0,1) == 0);
 }
 
 void test_ceil()
 {
+    static_assert((std::is_same<decltype(ceil((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(ceil((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(ceil((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(ceil((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(ceilf(0)), float>::value), "");
     static_assert((std::is_same<decltype(ceill(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(ceil(Ambiguous())), Ambiguous>::value), "");
     assert(ceil(0) == 0);
 }
 
 void test_cos()
 {
+    static_assert((std::is_same<decltype(cos((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(cos((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(cos((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cos((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(cosf(0)), float>::value), "");
     static_assert((std::is_same<decltype(cosl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(cos(Ambiguous())), Ambiguous>::value), "");
     assert(cos(0) == 1);
 }
 
 void test_cosh()
 {
+    static_assert((std::is_same<decltype(cosh((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(cosh((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(cosh((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cosh((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(coshf(0)), float>::value), "");
     static_assert((std::is_same<decltype(coshl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(cosh(Ambiguous())), Ambiguous>::value), "");
     assert(cosh(0) == 1);
 }
 
 void test_exp()
 {
+    static_assert((std::is_same<decltype(exp((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(exp((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(exp((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(expf(0)), float>::value), "");
     static_assert((std::is_same<decltype(expl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(exp(Ambiguous())), Ambiguous>::value), "");
     assert(exp(0) == 1);
 }
 
 void test_fabs()
 {
+    static_assert((std::is_same<decltype(fabs((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(fabs((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fabs((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(fabs((double)0)), double>::value), "");
-    static_assert((std::is_same<decltype(fabsf(0.f)), float>::value), "");
-    static_assert((std::is_same<decltype(fabsl(0.L)), long double>::value), "");
-    assert(fabs(-1.f) == 1);
+    static_assert((std::is_same<decltype(fabs((long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fabsf(0.0f)), float>::value), "");
+    static_assert((std::is_same<decltype(fabsl(0.0L)), long double>::value), "");
+    static_assert((std::is_same<decltype(fabs(Ambiguous())), Ambiguous>::value), "");
+    assert(fabs(-1) == 1);
 }
 
 void test_floor()
 {
+    static_assert((std::is_same<decltype(floor((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(floor((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(floor((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(floor((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(floorf(0)), float>::value), "");
     static_assert((std::is_same<decltype(floorl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(floor(Ambiguous())), Ambiguous>::value), "");
     assert(floor(1) == 1);
 }
 
 void test_fmod()
 {
+    static_assert((std::is_same<decltype(fmod((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(fmod((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmod((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmod((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(fmod((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmod((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmod((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(fmodf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(fmodl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmod((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmod(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(fmod(1.5,1) == .5);
 }
 
 void test_frexp()
 {
     int ip;
+    static_assert((std::is_same<decltype(frexp((float)0, &ip)), float>::value), "");
+    static_assert((std::is_same<decltype(frexp((bool)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((unsigned short)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((int)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((unsigned int)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((long)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((unsigned long)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((long long)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((unsigned long long)0, &ip)), double>::value), "");
     static_assert((std::is_same<decltype(frexp((double)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(frexp((long double)0, &ip)), long double>::value), "");
     static_assert((std::is_same<decltype(frexpf(0, &ip)), float>::value), "");
     static_assert((std::is_same<decltype(frexpl(0, &ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(frexp(Ambiguous(), &ip)), Ambiguous>::value), "");
     assert(frexp(0, &ip) == 0);
 }
 
 void test_ldexp()
 {
     int ip = 1;
+    static_assert((std::is_same<decltype(ldexp((float)0, ip)), float>::value), "");
+    static_assert((std::is_same<decltype(ldexp((bool)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((unsigned short)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((int)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((unsigned int)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((long)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((unsigned long)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((long long)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((unsigned long long)0, ip)), double>::value), "");
     static_assert((std::is_same<decltype(ldexp((double)0, ip)), double>::value), "");
+    static_assert((std::is_same<decltype(ldexp((long double)0, ip)), long double>::value), "");
     static_assert((std::is_same<decltype(ldexpf(0, ip)), float>::value), "");
     static_assert((std::is_same<decltype(ldexpl(0, ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(ldexp(Ambiguous(), ip)), Ambiguous>::value), "");
     assert(ldexp(1, ip) == 2);
 }
 
 void test_log()
 {
+    static_assert((std::is_same<decltype(log((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(log((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(log((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(logf(0)), float>::value), "");
     static_assert((std::is_same<decltype(logl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(log(Ambiguous())), Ambiguous>::value), "");
     assert(log(1) == 0);
 }
 
 void test_log10()
 {
+    static_assert((std::is_same<decltype(log10((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(log10((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(log10((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log10((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(log10f(0)), float>::value), "");
     static_assert((std::is_same<decltype(log10l(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(log10(Ambiguous())), Ambiguous>::value), "");
     assert(log10(1) == 0);
 }
 
 void test_modf()
 {
+    static_assert((std::is_same<decltype(modf((float)0, (float*)0)), float>::value), "");
     static_assert((std::is_same<decltype(modf((double)0, (double*)0)), double>::value), "");
+    static_assert((std::is_same<decltype(modf((long double)0, (long double*)0)), long double>::value), "");
     static_assert((std::is_same<decltype(modff(0, (float*)0)), float>::value), "");
     static_assert((std::is_same<decltype(modfl(0, (long double*)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(modf(Ambiguous(), (Ambiguous*)0)), Ambiguous>::value), "");
     double i;
     assert(modf(1., &i) == 0);
 }
 
 void test_pow()
 {
+    static_assert((std::is_same<decltype(pow((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(pow((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(pow((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(pow((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(pow((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(pow((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(pow((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(pow((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(powf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(powl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(pow((int)0, (int)0)), double>::value), "");
+//     static_assert((std::is_same<decltype(pow(Value<int>(), (int)0)), double>::value), "");
+//     static_assert((std::is_same<decltype(pow(Value<long double>(), (float)0)), long double>::value), "");
+//     static_assert((std::is_same<decltype(pow((float) 0, Value<float>())), float>::value), "");
+    static_assert((std::is_same<decltype(pow(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(pow(1,1) == 1);
+//     assert(pow(Value<int,1>(), Value<float,1>())  == 1);
+//     assert(pow(1.0f, Value<double,1>()) == 1);
+//     assert(pow(1.0, Value<int,1>()) == 1);
+//     assert(pow(Value<long double,1>(), 1LL) == 1);
 }
 
 void test_sin()
 {
+    static_assert((std::is_same<decltype(sin((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(sin((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(sin((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sin((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(sinf(0)), float>::value), "");
     static_assert((std::is_same<decltype(sinl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(sin(Ambiguous())), Ambiguous>::value), "");
     assert(sin(0) == 0);
 }
 
 void test_sinh()
 {
+    static_assert((std::is_same<decltype(sinh((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(sinh((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(sinh((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sinh((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(sinhf(0)), float>::value), "");
     static_assert((std::is_same<decltype(sinhl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(sinh(Ambiguous())), Ambiguous>::value), "");
     assert(sinh(0) == 0);
 }
 
 void test_sqrt()
 {
+    static_assert((std::is_same<decltype(sqrt((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(sqrt((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(sqrt((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(sqrt((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(sqrtf(0)), float>::value), "");
     static_assert((std::is_same<decltype(sqrtl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(sqrt(Ambiguous())), Ambiguous>::value), "");
     assert(sqrt(4) == 2);
 }
 
 void test_tan()
 {
+    static_assert((std::is_same<decltype(tan((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(tan((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(tan((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tan((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(tanf(0)), float>::value), "");
     static_assert((std::is_same<decltype(tanl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(tan(Ambiguous())), Ambiguous>::value), "");
     assert(tan(0) == 0);
 }
 
 void test_tanh()
 {
+    static_assert((std::is_same<decltype(tanh((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(tanh((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(tanh((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tanh((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(tanhf(0)), float>::value), "");
     static_assert((std::is_same<decltype(tanhl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(tanh(Ambiguous())), Ambiguous>::value), "");
     assert(tanh(0) == 0);
 }
 
 void test_signbit()
 {
+#ifdef signbit
+#error signbit defined
+#endif
     static_assert((std::is_same<decltype(signbit((float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(signbit((double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(signbit(0)), bool>::value), "");
     static_assert((std::is_same<decltype(signbit((long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(signbit(Ambiguous())), Ambiguous>::value), "");
     assert(signbit(-1.0) == true);
 }
 
 void test_fpclassify()
 {
+#ifdef fpclassify
+#error fpclassify defined
+#endif
     static_assert((std::is_same<decltype(fpclassify((float)0)), int>::value), "");
     static_assert((std::is_same<decltype(fpclassify((double)0)), int>::value), "");
+    static_assert((std::is_same<decltype(fpclassify(0)), int>::value), "");
     static_assert((std::is_same<decltype(fpclassify((long double)0)), int>::value), "");
+    static_assert((std::is_same<decltype(fpclassify(Ambiguous())), Ambiguous>::value), "");
     assert(fpclassify(-1.0) == FP_NORMAL);
 }
 
 void test_isfinite()
 {
+#ifdef isfinite
+#error isfinite defined
+#endif
     static_assert((std::is_same<decltype(isfinite((float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isfinite((double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isfinite(0)), bool>::value), "");
     static_assert((std::is_same<decltype(isfinite((long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isfinite(Ambiguous())), Ambiguous>::value), "");
     assert(isfinite(-1.0) == true);
 }
 
-void test_isinf()
-{
-    static_assert((std::is_same<decltype(isinf((float)0)), bool>::value), "");
-    static_assert((std::is_same<decltype(isinf((double)0)), bool>::value), "");
-    static_assert((std::is_same<decltype(isinf((long double)0)), bool>::value), "");
-    assert(isinf(-1.0) == false);
-}
-
-void test_isnan()
-{
-    static_assert((std::is_same<decltype(isnan((float)0)), bool>::value), "");
-    static_assert((std::is_same<decltype(isnan((double)0)), bool>::value), "");
-    static_assert((std::is_same<decltype(isnan((long double)0)), bool>::value), "");
-    assert(isnan(-1.0) == false);
-}
-
 void test_isnormal()
 {
+#ifdef isnormal
+#error isnormal defined
+#endif
     static_assert((std::is_same<decltype(isnormal((float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isnormal((double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isnormal(0)), bool>::value), "");
     static_assert((std::is_same<decltype(isnormal((long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isnormal(Ambiguous())), Ambiguous>::value), "");
     assert(isnormal(-1.0) == true);
 }
 
 void test_isgreater()
 {
+#ifdef isgreater
+#error isgreater defined
+#endif
     static_assert((std::is_same<decltype(isgreater((float)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((float)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((float)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((double)0, (double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isgreater(0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((double)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((long double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((long double)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreater((long double)0, (long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isgreater(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(isgreater(-1.0, 0.F) == false);
 }
 
 void test_isgreaterequal()
 {
+#ifdef isgreaterequal
+#error isgreaterequal defined
+#endif
     static_assert((std::is_same<decltype(isgreaterequal((float)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((float)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((float)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((double)0, (double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isgreaterequal(0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((double)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((long double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((long double)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isgreaterequal((long double)0, (long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isgreaterequal(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(isgreaterequal(-1.0, 0.F) == false);
 }
 
 void test_isless()
 {
+#ifdef isless
+#error isless defined
+#endif
     static_assert((std::is_same<decltype(isless((float)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((float)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((float)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((double)0, (double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isless(0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((double)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((long double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((long double)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isless((long double)0, (long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isless(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(isless(-1.0, 0.F) == true);
 }
 
 void test_islessequal()
 {
+#ifdef islessequal
+#error islessequal defined
+#endif
     static_assert((std::is_same<decltype(islessequal((float)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((float)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((float)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((double)0, (double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(islessequal(0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((double)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((long double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((long double)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessequal((long double)0, (long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(islessequal(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(islessequal(-1.0, 0.F) == true);
 }
 
 void test_islessgreater()
 {
+#ifdef islessgreater
+#error islessgreater defined
+#endif
     static_assert((std::is_same<decltype(islessgreater((float)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((float)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((float)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((double)0, (double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(islessgreater(0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((double)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((long double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((long double)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(islessgreater((long double)0, (long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(islessgreater(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(islessgreater(-1.0, 0.F) == true);
 }
 
 void test_isunordered()
 {
+#ifdef isunordered
+#error isunordered defined
+#endif
     static_assert((std::is_same<decltype(isunordered((float)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((float)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((float)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((double)0, (double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isunordered(0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((double)0, (long double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((long double)0, (float)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((long double)0, (double)0)), bool>::value), "");
     static_assert((std::is_same<decltype(isunordered((long double)0, (long double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isunordered(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(isunordered(-1.0, 0.F) == false);
 }
 
 void test_acosh()
 {
+    static_assert((std::is_same<decltype(acosh((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(acosh((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(acosh((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(acosh((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(acoshf(0)), float>::value), "");
     static_assert((std::is_same<decltype(acoshl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(acosh(Ambiguous())), Ambiguous>::value), "");
     assert(acosh(1) == 0);
 }
 
 void test_asinh()
 {
+    static_assert((std::is_same<decltype(asinh((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(asinh((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(asinh((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(asinh((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(asinhf(0)), float>::value), "");
     static_assert((std::is_same<decltype(asinhl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(asinh(Ambiguous())), Ambiguous>::value), "");
     assert(asinh(0) == 0);
 }
 
 void test_atanh()
 {
+    static_assert((std::is_same<decltype(atanh((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(atanh((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(atanh((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(atanh((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(atanhf(0)), float>::value), "");
     static_assert((std::is_same<decltype(atanhl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(atanh(Ambiguous())), Ambiguous>::value), "");
     assert(atanh(0) == 0);
 }
 
 void test_cbrt()
 {
+    static_assert((std::is_same<decltype(cbrt((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(cbrt((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(cbrt((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(cbrt((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(cbrtf(0)), float>::value), "");
     static_assert((std::is_same<decltype(cbrtl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(cbrt(Ambiguous())), Ambiguous>::value), "");
     assert(cbrt(1) == 1);
 }
 
 void test_copysign()
 {
+    static_assert((std::is_same<decltype(copysign((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(copysign((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(copysign((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(copysign((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(copysign((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(copysign((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(copysign((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(copysignf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(copysignl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(copysign((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(copysign(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(copysign(1,1) == 1);
 }
 
 void test_erf()
 {
+    static_assert((std::is_same<decltype(erf((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(erf((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(erf((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erf((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(erff(0)), float>::value), "");
     static_assert((std::is_same<decltype(erfl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(erf(Ambiguous())), Ambiguous>::value), "");
     assert(erf(0) == 0);
 }
 
 void test_erfc()
 {
+    static_assert((std::is_same<decltype(erfc((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(erfc((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(erfc((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(erfc((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(erfcf(0)), float>::value), "");
     static_assert((std::is_same<decltype(erfcl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(erfc(Ambiguous())), Ambiguous>::value), "");
     assert(erfc(0) == 1);
 }
 
 void test_exp2()
 {
+    static_assert((std::is_same<decltype(exp2((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(exp2((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(exp2((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(exp2((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(exp2f(0)), float>::value), "");
     static_assert((std::is_same<decltype(exp2l(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(exp2(Ambiguous())), Ambiguous>::value), "");
     assert(exp2(1) == 2);
 }
 
 void test_expm1()
 {
+    static_assert((std::is_same<decltype(expm1((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(expm1((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(expm1((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(expm1((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(expm1f(0)), float>::value), "");
     static_assert((std::is_same<decltype(expm1l(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(expm1(Ambiguous())), Ambiguous>::value), "");
     assert(expm1(0) == 0);
 }
 
 void test_fdim()
 {
+    static_assert((std::is_same<decltype(fdim((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(fdim((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fdim((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fdim((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(fdim((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fdim((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fdim((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(fdimf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(fdiml(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fdim((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fdim(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(fdim(1,0) == 1);
 }
 
 void test_fma()
 {
+    static_assert((std::is_same<decltype(fma((bool)0, (float)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((char)0, (float)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((unsigned)0, (float)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((float)0, (int)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((float)0, (long)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((float)0, (float)0, (unsigned long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((float)0, (float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((float)0, (float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((float)0, (float)0, (float)0)), float>::value), "");
+
+    static_assert((std::is_same<decltype(fma((bool)0, (double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((char)0, (double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((unsigned)0, (double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((double)0, (int)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((double)0, (long)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((double)0, (double)0, (unsigned long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((double)0, (double)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fma((double)0, (double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(fma((double)0, (double)0,  (double)0)), double>::value), "");
+
+    static_assert((std::is_same<decltype(fma((bool)0, (long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((char)0, (long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((unsigned)0, (long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((long double)0, (int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((long double)0, (long)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((long double)0, (long double)0, (unsigned long long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((long double)0, (long double)0, (float)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((double)0, (long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma((long double)0, (long double)0, (long double)0)), long double>::value), "");
+
     static_assert((std::is_same<decltype(fmaf(0,0,0)), float>::value), "");
     static_assert((std::is_same<decltype(fmal(0,0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fma(Ambiguous(), Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(fma(1,1,1) == 2);
 }
 
 void test_fmax()
 {
+    static_assert((std::is_same<decltype(fmax((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(fmax((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmax((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmax((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(fmax((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmax((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmax((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(fmaxf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(fmaxl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmax((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmax(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(fmax(1,0) == 1);
 }
 
 void test_fmin()
 {
+    static_assert((std::is_same<decltype(fmin((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(fmin((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmin((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmin((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(fmin((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmin((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmin((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(fminf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(fminl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(fmin((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(fmin(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(fmin(1,0) == 0);
 }
 
 void test_hypot()
 {
+    static_assert((std::is_same<decltype(hypot((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(hypot((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(hypot((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(hypot((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(hypot((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(hypot((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(hypot((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(hypotf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(hypotl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(hypot((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(hypot(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(hypot(3,4) == 5);
 }
 
 void test_ilogb()
 {
+    static_assert((std::is_same<decltype(ilogb((float)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((bool)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((unsigned short)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((int)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((unsigned int)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((long)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((unsigned long)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((long long)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((unsigned long long)0)), int>::value), "");
     static_assert((std::is_same<decltype(ilogb((double)0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb((long double)0)), int>::value), "");
     static_assert((std::is_same<decltype(ilogbf(0)), int>::value), "");
     static_assert((std::is_same<decltype(ilogbl(0)), int>::value), "");
+    static_assert((std::is_same<decltype(ilogb(Ambiguous())), Ambiguous>::value), "");
     assert(ilogb(1) == 0);
 }
 
 void test_lgamma()
 {
+    static_assert((std::is_same<decltype(lgamma((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(lgamma((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(lgamma((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(lgamma((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(lgammaf(0)), float>::value), "");
     static_assert((std::is_same<decltype(lgammal(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(lgamma(Ambiguous())), Ambiguous>::value), "");
     assert(lgamma(1) == 0);
 }
 
 void test_llrint()
 {
+    static_assert((std::is_same<decltype(llrint((float)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((bool)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((unsigned short)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((int)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((unsigned int)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((long)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((unsigned long)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((long long)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((unsigned long long)0)), long long>::value), "");
     static_assert((std::is_same<decltype(llrint((double)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint((long double)0)), long long>::value), "");
     static_assert((std::is_same<decltype(llrintf(0)), long long>::value), "");
     static_assert((std::is_same<decltype(llrintl(0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llrint(Ambiguous())), Ambiguous>::value), "");
     assert(llrint(1) == 1LL);
 }
 
 void test_llround()
 {
+    static_assert((std::is_same<decltype(llround((float)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((bool)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((unsigned short)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((int)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((unsigned int)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((long)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((unsigned long)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((long long)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((unsigned long long)0)), long long>::value), "");
     static_assert((std::is_same<decltype(llround((double)0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround((long double)0)), long long>::value), "");
     static_assert((std::is_same<decltype(llroundf(0)), long long>::value), "");
     static_assert((std::is_same<decltype(llroundl(0)), long long>::value), "");
+    static_assert((std::is_same<decltype(llround(Ambiguous())), Ambiguous>::value), "");
     assert(llround(1) == 1LL);
 }
 
 void test_log1p()
 {
+    static_assert((std::is_same<decltype(log1p((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(log1p((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(log1p((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log1p((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(log1pf(0)), float>::value), "");
     static_assert((std::is_same<decltype(log1pl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(log1p(Ambiguous())), Ambiguous>::value), "");
     assert(log1p(0) == 0);
 }
 
 void test_log2()
 {
+    static_assert((std::is_same<decltype(log2((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(log2((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(log2((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(log2((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(log2f(0)), float>::value), "");
     static_assert((std::is_same<decltype(log2l(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(log2(Ambiguous())), Ambiguous>::value), "");
     assert(log2(1) == 0);
 }
 
 void test_logb()
 {
+    static_assert((std::is_same<decltype(logb((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(logb((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(logb((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(logb((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(logbf(0)), float>::value), "");
     static_assert((std::is_same<decltype(logbl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(logb(Ambiguous())), Ambiguous>::value), "");
     assert(logb(1) == 0);
 }
 
 void test_lrint()
 {
+    static_assert((std::is_same<decltype(lrint((float)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((bool)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((unsigned short)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((int)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((unsigned int)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((long)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((unsigned long)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((long long)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((unsigned long long)0)), long>::value), "");
     static_assert((std::is_same<decltype(lrint((double)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint((long double)0)), long>::value), "");
     static_assert((std::is_same<decltype(lrintf(0)), long>::value), "");
     static_assert((std::is_same<decltype(lrintl(0)), long>::value), "");
+    static_assert((std::is_same<decltype(lrint(Ambiguous())), Ambiguous>::value), "");
     assert(lrint(1) == 1L);
 }
 
 void test_lround()
 {
+    static_assert((std::is_same<decltype(lround((float)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((bool)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((unsigned short)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((int)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((unsigned int)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((long)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((unsigned long)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((long long)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((unsigned long long)0)), long>::value), "");
     static_assert((std::is_same<decltype(lround((double)0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround((long double)0)), long>::value), "");
     static_assert((std::is_same<decltype(lroundf(0)), long>::value), "");
     static_assert((std::is_same<decltype(lroundl(0)), long>::value), "");
+    static_assert((std::is_same<decltype(lround(Ambiguous())), Ambiguous>::value), "");
     assert(lround(1) == 1L);
 }
 
@@ -521,96 +1192,229 @@ void test_nan()
 
 void test_nearbyint()
 {
+    static_assert((std::is_same<decltype(nearbyint((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(nearbyint((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(nearbyintf(0)), float>::value), "");
     static_assert((std::is_same<decltype(nearbyintl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nearbyint(Ambiguous())), Ambiguous>::value), "");
     assert(nearbyint(1) == 1);
 }
 
 void test_nextafter()
 {
+    static_assert((std::is_same<decltype(nextafter((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(nextafter((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(nextafter((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(nextafterf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(nextafterl(0,0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nextafter((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nextafter(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(nextafter(0,1) == hexfloat<double>(0x1, 0, -1074));
 }
 
 void test_nexttoward()
 {
+    static_assert((std::is_same<decltype(nexttoward((float)0, (long double)0)), float>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((bool)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((unsigned short)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((int)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((unsigned int)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((long)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((unsigned long)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((long long)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((unsigned long long)0, (long double)0)), double>::value), "");
     static_assert((std::is_same<decltype(nexttoward((double)0, (long double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward((long double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(nexttowardf(0, (long double)0)), float>::value), "");
     static_assert((std::is_same<decltype(nexttowardl(0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(nexttoward(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(nexttoward(0, 1) == hexfloat<double>(0x1, 0, -1074));
 }
 
 void test_remainder()
 {
+    static_assert((std::is_same<decltype(remainder((float)0, (float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(remainder((bool)0, (float)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((unsigned short)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((int)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(remainder((float)0, (unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((long double)0, (unsigned long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(remainder((int)0, (long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((int)0, (unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(remainder((double)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((long double)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(remainder((float)0, (double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder((float)0, (long double)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(remainder((double)0, (long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(remainderf(0,0)), float>::value), "");
     static_assert((std::is_same<decltype(remainderl(0,0)), long double>::value), "");
     static_assert((std::is_same<decltype(remainder((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(remainder(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(remainder(0.5,1) == 0.5);
 }
 
 void test_remquo()
 {
     int ip;
+    static_assert((std::is_same<decltype(remquo((float)0, (float)0, &ip)), float>::value), "");
+    static_assert((std::is_same<decltype(remquo((bool)0, (float)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((unsigned short)0, (double)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((int)0, (long double)0, &ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(remquo((float)0, (unsigned int)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((double)0, (long)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((long double)0, (unsigned long)0, &ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(remquo((int)0, (long long)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((int)0, (unsigned long long)0, &ip)), double>::value), "");
     static_assert((std::is_same<decltype(remquo((double)0, (double)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((long double)0, (long double)0, &ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(remquo((float)0, (double)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo((float)0, (long double)0, &ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(remquo((double)0, (long double)0, &ip)), long double>::value), "");
     static_assert((std::is_same<decltype(remquof(0,0, &ip)), float>::value), "");
     static_assert((std::is_same<decltype(remquol(0,0, &ip)), long double>::value), "");
+    static_assert((std::is_same<decltype(remquo((int)0, (int)0, &ip)), double>::value), "");
+    static_assert((std::is_same<decltype(remquo(Ambiguous(), Ambiguous(), &ip)), Ambiguous>::value), "");
     assert(remquo(0.5,1, &ip) == 0.5);
 }
 
 void test_rint()
 {
+    static_assert((std::is_same<decltype(rint((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(rint((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(rint((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(rint((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(rintf(0)), float>::value), "");
     static_assert((std::is_same<decltype(rintl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(rint(Ambiguous())), Ambiguous>::value), "");
     assert(rint(1) == 1);
 }
 
 void test_round()
 {
+    static_assert((std::is_same<decltype(round((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(round((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(round((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(round((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(roundf(0)), float>::value), "");
     static_assert((std::is_same<decltype(roundl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(round(Ambiguous())), Ambiguous>::value), "");
     assert(round(1) == 1);
 }
 
 void test_scalbln()
 {
+    static_assert((std::is_same<decltype(scalbln((float)0, (long)0)), float>::value), "");
+    static_assert((std::is_same<decltype(scalbln((bool)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((unsigned short)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((int)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((unsigned int)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((long)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((unsigned long)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((long long)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((unsigned long long)0, (long)0)), double>::value), "");
     static_assert((std::is_same<decltype(scalbln((double)0, (long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbln((long double)0, (long)0)), long double>::value), "");
     static_assert((std::is_same<decltype(scalblnf(0, (long)0)), float>::value), "");
     static_assert((std::is_same<decltype(scalblnl(0, (long)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(scalbln(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(scalbln(1, 1) == 2);
 }
 
 void test_scalbn()
 {
+    static_assert((std::is_same<decltype(scalbn((float)0, (int)0)), float>::value), "");
+    static_assert((std::is_same<decltype(scalbn((bool)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((unsigned short)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((unsigned int)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((long)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((unsigned long)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((long long)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((unsigned long long)0, (int)0)), double>::value), "");
     static_assert((std::is_same<decltype(scalbn((double)0, (int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(scalbn((long double)0, (int)0)), long double>::value), "");
     static_assert((std::is_same<decltype(scalbnf(0, (int)0)), float>::value), "");
     static_assert((std::is_same<decltype(scalbnl(0, (int)0)), long double>::value), "");
+    static_assert((std::is_same<decltype(scalbn(Ambiguous(), Ambiguous())), Ambiguous>::value), "");
     assert(scalbn(1, 1) == 2);
 }
 
 void test_tgamma()
 {
+    static_assert((std::is_same<decltype(tgamma((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(tgamma((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(tgamma((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(tgamma((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(tgammaf(0)), float>::value), "");
     static_assert((std::is_same<decltype(tgammal(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(tgamma(Ambiguous())), Ambiguous>::value), "");
     assert(tgamma(1) == 1);
 }
 
 void test_trunc()
 {
+    static_assert((std::is_same<decltype(trunc((float)0)), float>::value), "");
+    static_assert((std::is_same<decltype(trunc((bool)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((unsigned short)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((unsigned int)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((unsigned long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((long long)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((unsigned long long)0)), double>::value), "");
     static_assert((std::is_same<decltype(trunc((double)0)), double>::value), "");
+    static_assert((std::is_same<decltype(trunc((long double)0)), long double>::value), "");
     static_assert((std::is_same<decltype(truncf(0)), float>::value), "");
     static_assert((std::is_same<decltype(truncl(0)), long double>::value), "");
+    static_assert((std::is_same<decltype(trunc(Ambiguous())), Ambiguous>::value), "");
     assert(trunc(1) == 1);
 }
 
 int main()
 {
+    test_abs();
     test_acos();
     test_asin();
     test_atan();
@@ -636,8 +1440,6 @@ int main()
     test_signbit();
     test_fpclassify();
     test_isfinite();
-    test_isinf();
-    test_isnan();
     test_isnormal();
     test_isgreater();
     test_isgreaterequal();
diff --git test/std/depr/depr.c.headers/math_h_isinf.pass.cpp test/std/depr/depr.c.headers/math_h_isinf.pass.cpp
new file mode 100644
index 0000000..cc7eaac
--- /dev/null
+++ test/std/depr/depr.c.headers/math_h_isinf.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <math.h>
+
+// isinf
+
+// XFAIL: linux
+
+#include <math.h>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+#ifdef isinf
+#error isinf defined
+#endif
+    static_assert((std::is_same<decltype(isinf((float)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isinf((double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isinf(0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isinf((long double)0)), bool>::value), "");
+    assert(isinf(-1.0) == false);
+}
diff --git test/std/depr/depr.c.headers/math_h_isnan.pass.cpp test/std/depr/depr.c.headers/math_h_isnan.pass.cpp
new file mode 100644
index 0000000..118f96b
--- /dev/null
+++ test/std/depr/depr.c.headers/math_h_isnan.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <math.h>
+
+// isnan
+
+// XFAIL: linux
+
+#include <math.h>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+#ifdef isnan
+#error isnan defined
+#endif
+    static_assert((std::is_same<decltype(isnan((float)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isnan((double)0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isnan(0)), bool>::value), "");
+    static_assert((std::is_same<decltype(isnan((long double)0)), bool>::value), "");
+    assert(isnan(-1.0) == false);
+}


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