[libcxx-commits] [PATCH] D106364: [libc++] Add `__libcpp_copysign` conditionally constexpr overloads.
Marek Kurdej via Phabricator via libcxx-commits
libcxx-commits at lists.llvm.org
Wed Jul 21 07:57:52 PDT 2021
This revision was automatically updated to reflect the committed changes.
Closed by commit rG1daf0e22562c: [libc++] Add `__libcpp_copysign` conditionally constexpr overloads. (authored by curdeius).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D106364/new/
https://reviews.llvm.org/D106364
Files:
libcxx/include/math.h
Index: libcxx/include/math.h
===================================================================
--- libcxx/include/math.h
+++ libcxx/include/math.h
@@ -1120,16 +1120,32 @@
// copysign
-inline _LIBCPP_INLINE_VISIBILITY float copysign(float __lcpp_x,
- float __lcpp_y) _NOEXCEPT {
+#if __has_builtin(__builtin_copysignf)
+_LIBCPP_CONSTEXPR
+#endif
+inline _LIBCPP_INLINE_VISIBILITY float __libcpp_copysign(float __lcpp_x, float __lcpp_y) _NOEXCEPT {
#if __has_builtin(__builtin_copysignf)
return __builtin_copysignf(__lcpp_x, __lcpp_y);
#else
return ::copysignf(__lcpp_x, __lcpp_y);
#endif
}
-inline _LIBCPP_INLINE_VISIBILITY long double
-copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
+
+#if __has_builtin(__builtin_copysign)
+_LIBCPP_CONSTEXPR
+#endif
+inline _LIBCPP_INLINE_VISIBILITY double __libcpp_copysign(double __lcpp_x, double __lcpp_y) _NOEXCEPT {
+#if __has_builtin(__builtin_copysign)
+ return __builtin_copysign(__lcpp_x, __lcpp_y);
+#else
+ return ::copysign(__lcpp_x, __lcpp_y);
+#endif
+}
+
+#if __has_builtin(__builtin_copysignl)
+_LIBCPP_CONSTEXPR
+#endif
+inline _LIBCPP_INLINE_VISIBILITY long double __libcpp_copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
#if __has_builtin(__builtin_copysignl)
return __builtin_copysignl(__lcpp_x, __lcpp_y);
#else
@@ -1138,6 +1154,9 @@
}
template <class _A1, class _A2>
+#if __has_builtin(__builtin_copysign)
+_LIBCPP_CONSTEXPR
+#endif
inline _LIBCPP_INLINE_VISIBILITY
typename std::_EnableIf
<
@@ -1145,8 +1164,7 @@
std::is_arithmetic<_A2>::value,
std::__promote<_A1, _A2>
>::type
-copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
-{
+__libcpp_copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT {
typedef typename std::__promote<_A1, _A2>::type __result_type;
static_assert((!(std::_IsSame<_A1, __result_type>::value &&
std::_IsSame<_A2, __result_type>::value)), "");
@@ -1157,6 +1175,26 @@
#endif
}
+inline _LIBCPP_INLINE_VISIBILITY float copysign(float __lcpp_x, float __lcpp_y) _NOEXCEPT {
+ return ::__libcpp_copysign(__lcpp_x, __lcpp_y);
+}
+
+inline _LIBCPP_INLINE_VISIBILITY long double copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
+ return ::__libcpp_copysign(__lcpp_x, __lcpp_y);
+}
+
+template <class _A1, class _A2>
+inline _LIBCPP_INLINE_VISIBILITY
+typename std::_EnableIf
+<
+ std::is_arithmetic<_A1>::value &&
+ std::is_arithmetic<_A2>::value,
+ std::__promote<_A1, _A2>
+>::type
+ copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT {
+ return ::__libcpp_copysign(__lcpp_x, __lcpp_y);
+}
+
// erf
inline _LIBCPP_INLINE_VISIBILITY float erf(float __lcpp_x) _NOEXCEPT {return ::erff(__lcpp_x);}
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