[libcxx-commits] [libcxx] [libc++][modules] Uses _LIBCPP_USING_IF_EXISTS. (PR #90409)
Mark de Wever via libcxx-commits
libcxx-commits at lists.llvm.org
Sun Apr 28 11:50:28 PDT 2024
https://github.com/mordante created https://github.com/llvm/llvm-project/pull/90409
This attribute is used in the headers. Not using this in the modules has led to several issues. Add them to the modules to avoid these errors in other placed.
>From fa825b4286676f3573d3d84c67621bf73586ee4b Mon Sep 17 00:00:00 2001
From: Mark de Wever <koraq at xs4all.nl>
Date: Sun, 28 Apr 2024 20:44:40 +0200
Subject: [PATCH] [libc++][modules] Uses _LIBCPP_USING_IF_EXISTS.
This attribute is used in the headers. Not using this in the modules has
led to several issues. Add them to the modules to avoid these errors in
other placed.
---
libcxx/modules/std.compat/cctype.inc | 28 +-
libcxx/modules/std.compat/cfenv.inc | 26 +-
libcxx/modules/std.compat/cinttypes.inc | 14 +-
libcxx/modules/std.compat/clocale.inc | 6 +-
libcxx/modules/std.compat/cmath.inc | 372 +++++++++++------------
libcxx/modules/std.compat/csetjmp.inc | 4 +-
libcxx/modules/std.compat/csignal.inc | 6 +-
libcxx/modules/std.compat/cstdarg.inc | 2 +-
libcxx/modules/std.compat/cstddef.inc | 6 +-
libcxx/modules/std.compat/cstdint.inc | 36 +--
libcxx/modules/std.compat/cstdio.inc | 96 +++---
libcxx/modules/std.compat/cstdlib.inc | 86 +++---
libcxx/modules/std.compat/cstring.inc | 46 +--
libcxx/modules/std.compat/ctime.inc | 28 +-
libcxx/modules/std.compat/cwchar.inc | 126 ++++----
libcxx/modules/std.compat/cwctype.inc | 42 +--
libcxx/modules/std/atomic.inc | 202 ++++++-------
libcxx/modules/std/cctype.inc | 28 +-
libcxx/modules/std/cfenv.inc | 26 +-
libcxx/modules/std/cinttypes.inc | 14 +-
libcxx/modules/std/clocale.inc | 6 +-
libcxx/modules/std/cmath.inc | 374 ++++++++++++------------
libcxx/modules/std/csetjmp.inc | 4 +-
libcxx/modules/std/csignal.inc | 6 +-
libcxx/modules/std/cstdarg.inc | 2 +-
libcxx/modules/std/cstddef.inc | 6 +-
libcxx/modules/std/cstdint.inc | 36 +--
libcxx/modules/std/cstdio.inc | 96 +++---
libcxx/modules/std/cstdlib.inc | 86 +++---
libcxx/modules/std/cstring.inc | 46 +--
libcxx/modules/std/ctime.inc | 28 +-
libcxx/modules/std/cwchar.inc | 126 ++++----
libcxx/modules/std/cwctype.inc | 42 +--
33 files changed, 1026 insertions(+), 1026 deletions(-)
diff --git a/libcxx/modules/std.compat/cctype.inc b/libcxx/modules/std.compat/cctype.inc
index 56fb45a374a510..5cde12ddb38d78 100644
--- a/libcxx/modules/std.compat/cctype.inc
+++ b/libcxx/modules/std.compat/cctype.inc
@@ -8,18 +8,18 @@
//===----------------------------------------------------------------------===//
export {
- using ::isalnum;
- using ::isalpha;
- using ::isblank;
- using ::iscntrl;
- using ::isdigit;
- using ::isgraph;
- using ::islower;
- using ::isprint;
- using ::ispunct;
- using ::isspace;
- using ::isupper;
- using ::isxdigit;
- using ::tolower;
- using ::toupper;
+ using ::isalnum _LIBCPP_USING_IF_EXISTS;
+ using ::isalpha _LIBCPP_USING_IF_EXISTS;
+ using ::isblank _LIBCPP_USING_IF_EXISTS;
+ using ::iscntrl _LIBCPP_USING_IF_EXISTS;
+ using ::isdigit _LIBCPP_USING_IF_EXISTS;
+ using ::isgraph _LIBCPP_USING_IF_EXISTS;
+ using ::islower _LIBCPP_USING_IF_EXISTS;
+ using ::isprint _LIBCPP_USING_IF_EXISTS;
+ using ::ispunct _LIBCPP_USING_IF_EXISTS;
+ using ::isspace _LIBCPP_USING_IF_EXISTS;
+ using ::isupper _LIBCPP_USING_IF_EXISTS;
+ using ::isxdigit _LIBCPP_USING_IF_EXISTS;
+ using ::tolower _LIBCPP_USING_IF_EXISTS;
+ using ::toupper _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cfenv.inc b/libcxx/modules/std.compat/cfenv.inc
index 50128463d6a914..5a373f64697120 100644
--- a/libcxx/modules/std.compat/cfenv.inc
+++ b/libcxx/modules/std.compat/cfenv.inc
@@ -9,21 +9,21 @@
export {
// types
- using ::fenv_t;
- using ::fexcept_t;
+ using ::fenv_t _LIBCPP_USING_IF_EXISTS;
+ using ::fexcept_t _LIBCPP_USING_IF_EXISTS;
// functions
- using ::feclearexcept;
- using ::fegetexceptflag;
- using ::feraiseexcept;
- using ::fesetexceptflag;
- using ::fetestexcept;
+ using ::feclearexcept _LIBCPP_USING_IF_EXISTS;
+ using ::fegetexceptflag _LIBCPP_USING_IF_EXISTS;
+ using ::feraiseexcept _LIBCPP_USING_IF_EXISTS;
+ using ::fesetexceptflag _LIBCPP_USING_IF_EXISTS;
+ using ::fetestexcept _LIBCPP_USING_IF_EXISTS;
- using ::fegetround;
- using ::fesetround;
+ using ::fegetround _LIBCPP_USING_IF_EXISTS;
+ using ::fesetround _LIBCPP_USING_IF_EXISTS;
- using ::fegetenv;
- using ::feholdexcept;
- using ::fesetenv;
- using ::feupdateenv;
+ using ::fegetenv _LIBCPP_USING_IF_EXISTS;
+ using ::feholdexcept _LIBCPP_USING_IF_EXISTS;
+ using ::fesetenv _LIBCPP_USING_IF_EXISTS;
+ using ::feupdateenv _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cinttypes.inc b/libcxx/modules/std.compat/cinttypes.inc
index a64c088d0d6f88..4789ec33102008 100644
--- a/libcxx/modules/std.compat/cinttypes.inc
+++ b/libcxx/modules/std.compat/cinttypes.inc
@@ -8,14 +8,14 @@
//===----------------------------------------------------------------------===//
export {
- using ::imaxdiv_t;
+ using ::imaxdiv_t _LIBCPP_USING_IF_EXISTS;
- using ::imaxabs;
- using ::imaxdiv;
- using ::strtoimax;
- using ::strtoumax;
- using ::wcstoimax;
- using ::wcstoumax;
+ using ::imaxabs _LIBCPP_USING_IF_EXISTS;
+ using ::imaxdiv _LIBCPP_USING_IF_EXISTS;
+ using ::strtoimax _LIBCPP_USING_IF_EXISTS;
+ using ::strtoumax _LIBCPP_USING_IF_EXISTS;
+ using ::wcstoimax _LIBCPP_USING_IF_EXISTS;
+ using ::wcstoumax _LIBCPP_USING_IF_EXISTS;
// abs is conditionally here, but always present in cmath.cppm. To avoid
// conflicing declarations omit the using here.
diff --git a/libcxx/modules/std.compat/clocale.inc b/libcxx/modules/std.compat/clocale.inc
index d9785a73794300..1a975c560a496d 100644
--- a/libcxx/modules/std.compat/clocale.inc
+++ b/libcxx/modules/std.compat/clocale.inc
@@ -9,9 +9,9 @@
export {
#ifndef _LIBCPP_HAS_NO_LOCALIZATION
- using ::lconv;
+ using ::lconv _LIBCPP_USING_IF_EXISTS;
- using ::localeconv;
- using ::setlocale;
+ using ::localeconv _LIBCPP_USING_IF_EXISTS;
+ using ::setlocale _LIBCPP_USING_IF_EXISTS;
#endif // _LIBCPP_HAS_NO_LOCALIZATION
} // export
diff --git a/libcxx/modules/std.compat/cmath.inc b/libcxx/modules/std.compat/cmath.inc
index de5379275c5fae..6c86d0df574062 100644
--- a/libcxx/modules/std.compat/cmath.inc
+++ b/libcxx/modules/std.compat/cmath.inc
@@ -8,241 +8,241 @@
//===----------------------------------------------------------------------===//
export {
- using ::double_t;
- using ::float_t;
+ using ::double_t _LIBCPP_USING_IF_EXISTS;
+ using ::float_t _LIBCPP_USING_IF_EXISTS;
- using ::acos;
- using ::acosf;
- using ::acosl;
+ using ::acos _LIBCPP_USING_IF_EXISTS;
+ using ::acosf _LIBCPP_USING_IF_EXISTS;
+ using ::acosl _LIBCPP_USING_IF_EXISTS;
- using ::asin;
- using ::asinf;
- using ::asinl;
+ using ::asin _LIBCPP_USING_IF_EXISTS;
+ using ::asinf _LIBCPP_USING_IF_EXISTS;
+ using ::asinl _LIBCPP_USING_IF_EXISTS;
- using ::atan;
- using ::atanf;
- using ::atanl;
+ using ::atan _LIBCPP_USING_IF_EXISTS;
+ using ::atanf _LIBCPP_USING_IF_EXISTS;
+ using ::atanl _LIBCPP_USING_IF_EXISTS;
- using ::atan2;
- using ::atan2f;
- using ::atan2l;
+ using ::atan2 _LIBCPP_USING_IF_EXISTS;
+ using ::atan2f _LIBCPP_USING_IF_EXISTS;
+ using ::atan2l _LIBCPP_USING_IF_EXISTS;
- using ::cos;
- using ::cosf;
- using ::cosl;
+ using ::cos _LIBCPP_USING_IF_EXISTS;
+ using ::cosf _LIBCPP_USING_IF_EXISTS;
+ using ::cosl _LIBCPP_USING_IF_EXISTS;
- using ::sin;
- using ::sinf;
- using ::sinl;
+ using ::sin _LIBCPP_USING_IF_EXISTS;
+ using ::sinf _LIBCPP_USING_IF_EXISTS;
+ using ::sinl _LIBCPP_USING_IF_EXISTS;
- using ::tan;
- using ::tanf;
- using ::tanl;
+ using ::tan _LIBCPP_USING_IF_EXISTS;
+ using ::tanf _LIBCPP_USING_IF_EXISTS;
+ using ::tanl _LIBCPP_USING_IF_EXISTS;
- using ::acosh;
- using ::acoshf;
- using ::acoshl;
+ using ::acosh _LIBCPP_USING_IF_EXISTS;
+ using ::acoshf _LIBCPP_USING_IF_EXISTS;
+ using ::acoshl _LIBCPP_USING_IF_EXISTS;
- using ::asinh;
- using ::asinhf;
- using ::asinhl;
+ using ::asinh _LIBCPP_USING_IF_EXISTS;
+ using ::asinhf _LIBCPP_USING_IF_EXISTS;
+ using ::asinhl _LIBCPP_USING_IF_EXISTS;
- using ::atanh;
- using ::atanhf;
- using ::atanhl;
+ using ::atanh _LIBCPP_USING_IF_EXISTS;
+ using ::atanhf _LIBCPP_USING_IF_EXISTS;
+ using ::atanhl _LIBCPP_USING_IF_EXISTS;
- using ::cosh;
- using ::coshf;
- using ::coshl;
+ using ::cosh _LIBCPP_USING_IF_EXISTS;
+ using ::coshf _LIBCPP_USING_IF_EXISTS;
+ using ::coshl _LIBCPP_USING_IF_EXISTS;
- using ::sinh;
- using ::sinhf;
- using ::sinhl;
+ using ::sinh _LIBCPP_USING_IF_EXISTS;
+ using ::sinhf _LIBCPP_USING_IF_EXISTS;
+ using ::sinhl _LIBCPP_USING_IF_EXISTS;
- using ::tanh;
- using ::tanhf;
- using ::tanhl;
+ using ::tanh _LIBCPP_USING_IF_EXISTS;
+ using ::tanhf _LIBCPP_USING_IF_EXISTS;
+ using ::tanhl _LIBCPP_USING_IF_EXISTS;
- using ::exp;
- using ::expf;
- using ::expl;
+ using ::exp _LIBCPP_USING_IF_EXISTS;
+ using ::expf _LIBCPP_USING_IF_EXISTS;
+ using ::expl _LIBCPP_USING_IF_EXISTS;
- using ::exp2;
- using ::exp2f;
- using ::exp2l;
+ using ::exp2 _LIBCPP_USING_IF_EXISTS;
+ using ::exp2f _LIBCPP_USING_IF_EXISTS;
+ using ::exp2l _LIBCPP_USING_IF_EXISTS;
- using ::expm1;
- using ::expm1f;
- using ::expm1l;
+ using ::expm1 _LIBCPP_USING_IF_EXISTS;
+ using ::expm1f _LIBCPP_USING_IF_EXISTS;
+ using ::expm1l _LIBCPP_USING_IF_EXISTS;
- using ::frexp;
- using ::frexpf;
- using ::frexpl;
+ using ::frexp _LIBCPP_USING_IF_EXISTS;
+ using ::frexpf _LIBCPP_USING_IF_EXISTS;
+ using ::frexpl _LIBCPP_USING_IF_EXISTS;
- using ::ilogb;
- using ::ilogbf;
- using ::ilogbl;
+ using ::ilogb _LIBCPP_USING_IF_EXISTS;
+ using ::ilogbf _LIBCPP_USING_IF_EXISTS;
+ using ::ilogbl _LIBCPP_USING_IF_EXISTS;
- using ::ldexp;
- using ::ldexpf;
- using ::ldexpl;
+ using ::ldexp _LIBCPP_USING_IF_EXISTS;
+ using ::ldexpf _LIBCPP_USING_IF_EXISTS;
+ using ::ldexpl _LIBCPP_USING_IF_EXISTS;
- using ::log;
- using ::logf;
- using ::logl;
+ using ::log _LIBCPP_USING_IF_EXISTS;
+ using ::logf _LIBCPP_USING_IF_EXISTS;
+ using ::logl _LIBCPP_USING_IF_EXISTS;
- using ::log10;
- using ::log10f;
- using ::log10l;
+ using ::log10 _LIBCPP_USING_IF_EXISTS;
+ using ::log10f _LIBCPP_USING_IF_EXISTS;
+ using ::log10l _LIBCPP_USING_IF_EXISTS;
- using ::log1p;
- using ::log1pf;
- using ::log1pl;
+ using ::log1p _LIBCPP_USING_IF_EXISTS;
+ using ::log1pf _LIBCPP_USING_IF_EXISTS;
+ using ::log1pl _LIBCPP_USING_IF_EXISTS;
- using ::log2;
- using ::log2f;
- using ::log2l;
+ using ::log2 _LIBCPP_USING_IF_EXISTS;
+ using ::log2f _LIBCPP_USING_IF_EXISTS;
+ using ::log2l _LIBCPP_USING_IF_EXISTS;
- using ::logb;
- using ::logbf;
- using ::logbl;
+ using ::logb _LIBCPP_USING_IF_EXISTS;
+ using ::logbf _LIBCPP_USING_IF_EXISTS;
+ using ::logbl _LIBCPP_USING_IF_EXISTS;
- using ::modf;
- using ::modff;
- using ::modfl;
+ using ::modf _LIBCPP_USING_IF_EXISTS;
+ using ::modff _LIBCPP_USING_IF_EXISTS;
+ using ::modfl _LIBCPP_USING_IF_EXISTS;
- using ::scalbn;
- using ::scalbnf;
- using ::scalbnl;
+ using ::scalbn _LIBCPP_USING_IF_EXISTS;
+ using ::scalbnf _LIBCPP_USING_IF_EXISTS;
+ using ::scalbnl _LIBCPP_USING_IF_EXISTS;
- using ::scalbln;
- using ::scalblnf;
- using ::scalblnl;
+ using ::scalbln _LIBCPP_USING_IF_EXISTS;
+ using ::scalblnf _LIBCPP_USING_IF_EXISTS;
+ using ::scalblnl _LIBCPP_USING_IF_EXISTS;
- using ::cbrt;
- using ::cbrtf;
- using ::cbrtl;
+ using ::cbrt _LIBCPP_USING_IF_EXISTS;
+ using ::cbrtf _LIBCPP_USING_IF_EXISTS;
+ using ::cbrtl _LIBCPP_USING_IF_EXISTS;
// [c.math.abs], absolute values
- using ::abs;
+ using ::abs _LIBCPP_USING_IF_EXISTS;
- using ::fabs;
- using ::fabsf;
- using ::fabsl;
+ using ::fabs _LIBCPP_USING_IF_EXISTS;
+ using ::fabsf _LIBCPP_USING_IF_EXISTS;
+ using ::fabsl _LIBCPP_USING_IF_EXISTS;
- using ::hypot;
- using ::hypotf;
- using ::hypotl;
+ using ::hypot _LIBCPP_USING_IF_EXISTS;
+ using ::hypotf _LIBCPP_USING_IF_EXISTS;
+ using ::hypotl _LIBCPP_USING_IF_EXISTS;
// [c.math.hypot3], three-dimensional hypotenuse
- using ::pow;
- using ::powf;
- using ::powl;
+ using ::pow _LIBCPP_USING_IF_EXISTS;
+ using ::powf _LIBCPP_USING_IF_EXISTS;
+ using ::powl _LIBCPP_USING_IF_EXISTS;
- using ::sqrt;
- using ::sqrtf;
- using ::sqrtl;
+ using ::sqrt _LIBCPP_USING_IF_EXISTS;
+ using ::sqrtf _LIBCPP_USING_IF_EXISTS;
+ using ::sqrtl _LIBCPP_USING_IF_EXISTS;
- using ::erf;
- using ::erff;
- using ::erfl;
+ using ::erf _LIBCPP_USING_IF_EXISTS;
+ using ::erff _LIBCPP_USING_IF_EXISTS;
+ using ::erfl _LIBCPP_USING_IF_EXISTS;
- using ::erfc;
- using ::erfcf;
- using ::erfcl;
+ using ::erfc _LIBCPP_USING_IF_EXISTS;
+ using ::erfcf _LIBCPP_USING_IF_EXISTS;
+ using ::erfcl _LIBCPP_USING_IF_EXISTS;
- using ::lgamma;
- using ::lgammaf;
- using ::lgammal;
+ using ::lgamma _LIBCPP_USING_IF_EXISTS;
+ using ::lgammaf _LIBCPP_USING_IF_EXISTS;
+ using ::lgammal _LIBCPP_USING_IF_EXISTS;
- using ::tgamma;
- using ::tgammaf;
- using ::tgammal;
+ using ::tgamma _LIBCPP_USING_IF_EXISTS;
+ using ::tgammaf _LIBCPP_USING_IF_EXISTS;
+ using ::tgammal _LIBCPP_USING_IF_EXISTS;
- using ::ceil;
- using ::ceilf;
- using ::ceill;
+ using ::ceil _LIBCPP_USING_IF_EXISTS;
+ using ::ceilf _LIBCPP_USING_IF_EXISTS;
+ using ::ceill _LIBCPP_USING_IF_EXISTS;
- using ::floor;
- using ::floorf;
- using ::floorl;
+ using ::floor _LIBCPP_USING_IF_EXISTS;
+ using ::floorf _LIBCPP_USING_IF_EXISTS;
+ using ::floorl _LIBCPP_USING_IF_EXISTS;
- using ::nearbyint;
- using ::nearbyintf;
- using ::nearbyintl;
+ using ::nearbyint _LIBCPP_USING_IF_EXISTS;
+ using ::nearbyintf _LIBCPP_USING_IF_EXISTS;
+ using ::nearbyintl _LIBCPP_USING_IF_EXISTS;
- using ::rint;
- using ::rintf;
- using ::rintl;
+ using ::rint _LIBCPP_USING_IF_EXISTS;
+ using ::rintf _LIBCPP_USING_IF_EXISTS;
+ using ::rintl _LIBCPP_USING_IF_EXISTS;
- using ::lrint;
- using ::lrintf;
- using ::lrintl;
+ using ::lrint _LIBCPP_USING_IF_EXISTS;
+ using ::lrintf _LIBCPP_USING_IF_EXISTS;
+ using ::lrintl _LIBCPP_USING_IF_EXISTS;
- using ::llrint;
- using ::llrintf;
- using ::llrintl;
+ using ::llrint _LIBCPP_USING_IF_EXISTS;
+ using ::llrintf _LIBCPP_USING_IF_EXISTS;
+ using ::llrintl _LIBCPP_USING_IF_EXISTS;
- using ::round;
- using ::roundf;
- using ::roundl;
+ using ::round _LIBCPP_USING_IF_EXISTS;
+ using ::roundf _LIBCPP_USING_IF_EXISTS;
+ using ::roundl _LIBCPP_USING_IF_EXISTS;
- using ::lround;
- using ::lroundf;
- using ::lroundl;
+ using ::lround _LIBCPP_USING_IF_EXISTS;
+ using ::lroundf _LIBCPP_USING_IF_EXISTS;
+ using ::lroundl _LIBCPP_USING_IF_EXISTS;
- using ::llround;
- using ::llroundf;
- using ::llroundl;
+ using ::llround _LIBCPP_USING_IF_EXISTS;
+ using ::llroundf _LIBCPP_USING_IF_EXISTS;
+ using ::llroundl _LIBCPP_USING_IF_EXISTS;
- using ::trunc;
- using ::truncf;
- using ::truncl;
+ using ::trunc _LIBCPP_USING_IF_EXISTS;
+ using ::truncf _LIBCPP_USING_IF_EXISTS;
+ using ::truncl _LIBCPP_USING_IF_EXISTS;
- using ::fmod;
- using ::fmodf;
- using ::fmodl;
+ using ::fmod _LIBCPP_USING_IF_EXISTS;
+ using ::fmodf _LIBCPP_USING_IF_EXISTS;
+ using ::fmodl _LIBCPP_USING_IF_EXISTS;
- using ::remainder;
- using ::remainderf;
- using ::remainderl;
+ using ::remainder _LIBCPP_USING_IF_EXISTS;
+ using ::remainderf _LIBCPP_USING_IF_EXISTS;
+ using ::remainderl _LIBCPP_USING_IF_EXISTS;
- using ::remquo;
- using ::remquof;
- using ::remquol;
+ using ::remquo _LIBCPP_USING_IF_EXISTS;
+ using ::remquof _LIBCPP_USING_IF_EXISTS;
+ using ::remquol _LIBCPP_USING_IF_EXISTS;
- using ::copysign;
- using ::copysignf;
- using ::copysignl;
+ using ::copysign _LIBCPP_USING_IF_EXISTS;
+ using ::copysignf _LIBCPP_USING_IF_EXISTS;
+ using ::copysignl _LIBCPP_USING_IF_EXISTS;
- using ::nan;
- using ::nanf;
- using ::nanl;
+ using ::nan _LIBCPP_USING_IF_EXISTS;
+ using ::nanf _LIBCPP_USING_IF_EXISTS;
+ using ::nanl _LIBCPP_USING_IF_EXISTS;
- using ::nextafter;
- using ::nextafterf;
- using ::nextafterl;
+ using ::nextafter _LIBCPP_USING_IF_EXISTS;
+ using ::nextafterf _LIBCPP_USING_IF_EXISTS;
+ using ::nextafterl _LIBCPP_USING_IF_EXISTS;
- using ::nexttoward;
- using ::nexttowardf;
- using ::nexttowardl;
+ using ::nexttoward _LIBCPP_USING_IF_EXISTS;
+ using ::nexttowardf _LIBCPP_USING_IF_EXISTS;
+ using ::nexttowardl _LIBCPP_USING_IF_EXISTS;
- using ::fdim;
- using ::fdimf;
- using ::fdiml;
+ using ::fdim _LIBCPP_USING_IF_EXISTS;
+ using ::fdimf _LIBCPP_USING_IF_EXISTS;
+ using ::fdiml _LIBCPP_USING_IF_EXISTS;
- using ::fmax;
- using ::fmaxf;
- using ::fmaxl;
+ using ::fmax _LIBCPP_USING_IF_EXISTS;
+ using ::fmaxf _LIBCPP_USING_IF_EXISTS;
+ using ::fmaxl _LIBCPP_USING_IF_EXISTS;
- using ::fmin;
- using ::fminf;
- using ::fminl;
+ using ::fmin _LIBCPP_USING_IF_EXISTS;
+ using ::fminf _LIBCPP_USING_IF_EXISTS;
+ using ::fminl _LIBCPP_USING_IF_EXISTS;
- using ::fma;
- using ::fmaf;
- using ::fmal;
+ using ::fma _LIBCPP_USING_IF_EXISTS;
+ using ::fmaf _LIBCPP_USING_IF_EXISTS;
+ using ::fmal _LIBCPP_USING_IF_EXISTS;
// [c.math.lerp], linear interpolation
// [support.c.headers.other]/1
@@ -251,18 +251,18 @@ export {
// ...
// [c.math.fpclass], classification / comparison functions
- using ::fpclassify;
- using ::isfinite;
- using ::isgreater;
- using ::isgreaterequal;
- using ::isinf;
- using ::isless;
- using ::islessequal;
- using ::islessgreater;
- using ::isnan;
- using ::isnormal;
- using ::isunordered;
- using ::signbit;
+ using ::fpclassify _LIBCPP_USING_IF_EXISTS;
+ using ::isfinite _LIBCPP_USING_IF_EXISTS;
+ using ::isgreater _LIBCPP_USING_IF_EXISTS;
+ using ::isgreaterequal _LIBCPP_USING_IF_EXISTS;
+ using ::isinf _LIBCPP_USING_IF_EXISTS;
+ using ::isless _LIBCPP_USING_IF_EXISTS;
+ using ::islessequal _LIBCPP_USING_IF_EXISTS;
+ using ::islessgreater _LIBCPP_USING_IF_EXISTS;
+ using ::isnan _LIBCPP_USING_IF_EXISTS;
+ using ::isnormal _LIBCPP_USING_IF_EXISTS;
+ using ::isunordered _LIBCPP_USING_IF_EXISTS;
+ using ::signbit _LIBCPP_USING_IF_EXISTS;
// [sf.cmath], mathematical special functions
} // export
diff --git a/libcxx/modules/std.compat/csetjmp.inc b/libcxx/modules/std.compat/csetjmp.inc
index 1fc42ea3ee0378..53e1421a2fbdd0 100644
--- a/libcxx/modules/std.compat/csetjmp.inc
+++ b/libcxx/modules/std.compat/csetjmp.inc
@@ -8,6 +8,6 @@
//===----------------------------------------------------------------------===//
export {
- using ::jmp_buf;
- using ::longjmp;
+ using ::jmp_buf _LIBCPP_USING_IF_EXISTS;
+ using ::longjmp _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/csignal.inc b/libcxx/modules/std.compat/csignal.inc
index 33af6a9f2b7343..bf72459df16535 100644
--- a/libcxx/modules/std.compat/csignal.inc
+++ b/libcxx/modules/std.compat/csignal.inc
@@ -8,10 +8,10 @@
//===----------------------------------------------------------------------===//
export {
- using ::sig_atomic_t;
+ using ::sig_atomic_t _LIBCPP_USING_IF_EXISTS;
// [support.signal], signal handlers
- using ::signal;
+ using ::signal _LIBCPP_USING_IF_EXISTS;
- using ::raise;
+ using ::raise _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cstdarg.inc b/libcxx/modules/std.compat/cstdarg.inc
index 3efb34617a8bff..79b5df4ec99ced 100644
--- a/libcxx/modules/std.compat/cstdarg.inc
+++ b/libcxx/modules/std.compat/cstdarg.inc
@@ -7,4 +7,4 @@
//
//===----------------------------------------------------------------------===//
-export { using ::va_list; } // export
+export { using ::va_list _LIBCPP_USING_IF_EXISTS; } // export
diff --git a/libcxx/modules/std.compat/cstddef.inc b/libcxx/modules/std.compat/cstddef.inc
index 94ad036fd8f4a5..8704a31e01f326 100644
--- a/libcxx/modules/std.compat/cstddef.inc
+++ b/libcxx/modules/std.compat/cstddef.inc
@@ -8,10 +8,10 @@
//===----------------------------------------------------------------------===//
export {
- using ::max_align_t;
+ using ::max_align_t _LIBCPP_USING_IF_EXISTS;
using ::nullptr_t;
- using ::ptrdiff_t;
- using ::size_t;
+ using ::ptrdiff_t _LIBCPP_USING_IF_EXISTS;
+ using ::size_t _LIBCPP_USING_IF_EXISTS;
// [support.c.headers]/1
// ... placed within the global namespace scope, except for ... the
diff --git a/libcxx/modules/std.compat/cstdint.inc b/libcxx/modules/std.compat/cstdint.inc
index 1a74efc70ceaa1..a8dd6898cb266f 100644
--- a/libcxx/modules/std.compat/cstdint.inc
+++ b/libcxx/modules/std.compat/cstdint.inc
@@ -14,17 +14,17 @@ export {
using ::int32_t _LIBCPP_USING_IF_EXISTS;
using ::int64_t _LIBCPP_USING_IF_EXISTS;
- using ::int_fast16_t;
- using ::int_fast32_t;
- using ::int_fast64_t;
- using ::int_fast8_t;
+ using ::int_fast16_t _LIBCPP_USING_IF_EXISTS;
+ using ::int_fast32_t _LIBCPP_USING_IF_EXISTS;
+ using ::int_fast64_t _LIBCPP_USING_IF_EXISTS;
+ using ::int_fast8_t _LIBCPP_USING_IF_EXISTS;
- using ::int_least16_t;
- using ::int_least32_t;
- using ::int_least64_t;
- using ::int_least8_t;
+ using ::int_least16_t _LIBCPP_USING_IF_EXISTS;
+ using ::int_least32_t _LIBCPP_USING_IF_EXISTS;
+ using ::int_least64_t _LIBCPP_USING_IF_EXISTS;
+ using ::int_least8_t _LIBCPP_USING_IF_EXISTS;
- using ::intmax_t;
+ using ::intmax_t _LIBCPP_USING_IF_EXISTS;
using ::intptr_t _LIBCPP_USING_IF_EXISTS;
@@ -34,17 +34,17 @@ export {
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
using ::uint64_t _LIBCPP_USING_IF_EXISTS;
- using ::uint_fast16_t;
- using ::uint_fast32_t;
- using ::uint_fast64_t;
- using ::uint_fast8_t;
+ using ::uint_fast16_t _LIBCPP_USING_IF_EXISTS;
+ using ::uint_fast32_t _LIBCPP_USING_IF_EXISTS;
+ using ::uint_fast64_t _LIBCPP_USING_IF_EXISTS;
+ using ::uint_fast8_t _LIBCPP_USING_IF_EXISTS;
- using ::uint_least16_t;
- using ::uint_least32_t;
- using ::uint_least64_t;
- using ::uint_least8_t;
+ using ::uint_least16_t _LIBCPP_USING_IF_EXISTS;
+ using ::uint_least32_t _LIBCPP_USING_IF_EXISTS;
+ using ::uint_least64_t _LIBCPP_USING_IF_EXISTS;
+ using ::uint_least8_t _LIBCPP_USING_IF_EXISTS;
- using ::uintmax_t;
+ using ::uintmax_t _LIBCPP_USING_IF_EXISTS;
using ::uintptr_t _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cstdio.inc b/libcxx/modules/std.compat/cstdio.inc
index 1ec3015c9e2a2e..33dd2cbfb0d7c3 100644
--- a/libcxx/modules/std.compat/cstdio.inc
+++ b/libcxx/modules/std.compat/cstdio.inc
@@ -8,54 +8,54 @@
//===----------------------------------------------------------------------===//
export {
- using ::FILE;
- using ::fpos_t;
- using ::size_t;
+ using ::FILE _LIBCPP_USING_IF_EXISTS;
+ using ::fpos_t _LIBCPP_USING_IF_EXISTS;
+ using ::size_t _LIBCPP_USING_IF_EXISTS;
- using ::clearerr;
- using ::fclose;
- using ::feof;
- using ::ferror;
- using ::fflush;
- using ::fgetc;
- using ::fgetpos;
- using ::fgets;
- using ::fopen;
- using ::fprintf;
- using ::fputc;
- using ::fputs;
- using ::fread;
- using ::freopen;
- using ::fscanf;
- using ::fseek;
- using ::fsetpos;
- using ::ftell;
- using ::fwrite;
- using ::getc;
- using ::getchar;
- using ::perror;
- using ::printf;
- using ::putc;
- using ::putchar;
- using ::puts;
- using ::remove;
- using ::rename;
- using ::rewind;
- using ::scanf;
- using ::setbuf;
- using ::setvbuf;
- using ::snprintf;
- using ::sprintf;
- using ::sscanf;
- using ::tmpfile;
- using ::tmpnam;
- using ::ungetc;
- using ::vfprintf;
- using ::vfscanf;
- using ::vprintf;
- using ::vscanf;
- using ::vsnprintf;
- using ::vsprintf;
- using ::vsscanf;
+ using ::clearerr _LIBCPP_USING_IF_EXISTS;
+ using ::fclose _LIBCPP_USING_IF_EXISTS;
+ using ::feof _LIBCPP_USING_IF_EXISTS;
+ using ::ferror _LIBCPP_USING_IF_EXISTS;
+ using ::fflush _LIBCPP_USING_IF_EXISTS;
+ using ::fgetc _LIBCPP_USING_IF_EXISTS;
+ using ::fgetpos _LIBCPP_USING_IF_EXISTS;
+ using ::fgets _LIBCPP_USING_IF_EXISTS;
+ using ::fopen _LIBCPP_USING_IF_EXISTS;
+ using ::fprintf _LIBCPP_USING_IF_EXISTS;
+ using ::fputc _LIBCPP_USING_IF_EXISTS;
+ using ::fputs _LIBCPP_USING_IF_EXISTS;
+ using ::fread _LIBCPP_USING_IF_EXISTS;
+ using ::freopen _LIBCPP_USING_IF_EXISTS;
+ using ::fscanf _LIBCPP_USING_IF_EXISTS;
+ using ::fseek _LIBCPP_USING_IF_EXISTS;
+ using ::fsetpos _LIBCPP_USING_IF_EXISTS;
+ using ::ftell _LIBCPP_USING_IF_EXISTS;
+ using ::fwrite _LIBCPP_USING_IF_EXISTS;
+ using ::getc _LIBCPP_USING_IF_EXISTS;
+ using ::getchar _LIBCPP_USING_IF_EXISTS;
+ using ::perror _LIBCPP_USING_IF_EXISTS;
+ using ::printf _LIBCPP_USING_IF_EXISTS;
+ using ::putc _LIBCPP_USING_IF_EXISTS;
+ using ::putchar _LIBCPP_USING_IF_EXISTS;
+ using ::puts _LIBCPP_USING_IF_EXISTS;
+ using ::remove _LIBCPP_USING_IF_EXISTS;
+ using ::rename _LIBCPP_USING_IF_EXISTS;
+ using ::rewind _LIBCPP_USING_IF_EXISTS;
+ using ::scanf _LIBCPP_USING_IF_EXISTS;
+ using ::setbuf _LIBCPP_USING_IF_EXISTS;
+ using ::setvbuf _LIBCPP_USING_IF_EXISTS;
+ using ::snprintf _LIBCPP_USING_IF_EXISTS;
+ using ::sprintf _LIBCPP_USING_IF_EXISTS;
+ using ::sscanf _LIBCPP_USING_IF_EXISTS;
+ using ::tmpfile _LIBCPP_USING_IF_EXISTS;
+ using ::tmpnam _LIBCPP_USING_IF_EXISTS;
+ using ::ungetc _LIBCPP_USING_IF_EXISTS;
+ using ::vfprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vfscanf _LIBCPP_USING_IF_EXISTS;
+ using ::vprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vscanf _LIBCPP_USING_IF_EXISTS;
+ using ::vsnprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vsprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vsscanf _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cstdlib.inc b/libcxx/modules/std.compat/cstdlib.inc
index 4783cbf5162390..e1beac0dd9b391 100644
--- a/libcxx/modules/std.compat/cstdlib.inc
+++ b/libcxx/modules/std.compat/cstdlib.inc
@@ -8,65 +8,65 @@
//===----------------------------------------------------------------------===//
export {
- using ::div_t;
- using ::ldiv_t;
- using ::lldiv_t;
- using ::size_t;
+ using ::div_t _LIBCPP_USING_IF_EXISTS;
+ using ::ldiv_t _LIBCPP_USING_IF_EXISTS;
+ using ::lldiv_t _LIBCPP_USING_IF_EXISTS;
+ using ::size_t _LIBCPP_USING_IF_EXISTS;
// [support.start.term], start and termination
- using ::_Exit;
- using ::abort;
- using ::at_quick_exit _LIBCPP_USING_IF_EXISTS;
- using ::atexit;
- using ::exit;
- using ::quick_exit _LIBCPP_USING_IF_EXISTS;
+ using ::_Exit _LIBCPP_USING_IF_EXISTS;
+ using ::abort _LIBCPP_USING_IF_EXISTS;
+ using ::at_quick_exit _LIBCPP_USING_IF_EXISTS _LIBCPP_USING_IF_EXISTS;
+ using ::atexit _LIBCPP_USING_IF_EXISTS;
+ using ::exit _LIBCPP_USING_IF_EXISTS;
+ using ::quick_exit _LIBCPP_USING_IF_EXISTS _LIBCPP_USING_IF_EXISTS;
- using ::getenv;
- using ::system;
+ using ::getenv _LIBCPP_USING_IF_EXISTS;
+ using ::system _LIBCPP_USING_IF_EXISTS;
// [c.malloc], C library memory allocation
- using ::aligned_alloc _LIBCPP_USING_IF_EXISTS;
- using ::calloc;
- using ::free;
- using ::malloc;
- using ::realloc;
+ using ::aligned_alloc _LIBCPP_USING_IF_EXISTS _LIBCPP_USING_IF_EXISTS;
+ using ::calloc _LIBCPP_USING_IF_EXISTS;
+ using ::free _LIBCPP_USING_IF_EXISTS;
+ using ::malloc _LIBCPP_USING_IF_EXISTS;
+ using ::realloc _LIBCPP_USING_IF_EXISTS;
- using ::atof;
- using ::atoi;
- using ::atol;
- using ::atoll;
- using ::strtod;
- using ::strtof;
- using ::strtol;
- using ::strtold;
- using ::strtoll;
- using ::strtoul;
- using ::strtoull;
+ using ::atof _LIBCPP_USING_IF_EXISTS;
+ using ::atoi _LIBCPP_USING_IF_EXISTS;
+ using ::atol _LIBCPP_USING_IF_EXISTS;
+ using ::atoll _LIBCPP_USING_IF_EXISTS;
+ using ::strtod _LIBCPP_USING_IF_EXISTS;
+ using ::strtof _LIBCPP_USING_IF_EXISTS;
+ using ::strtol _LIBCPP_USING_IF_EXISTS;
+ using ::strtold _LIBCPP_USING_IF_EXISTS;
+ using ::strtoll _LIBCPP_USING_IF_EXISTS;
+ using ::strtoul _LIBCPP_USING_IF_EXISTS;
+ using ::strtoull _LIBCPP_USING_IF_EXISTS;
// [c.mb.wcs], multibyte / wide string and character conversion functions
- using ::mblen;
+ using ::mblen _LIBCPP_USING_IF_EXISTS;
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using ::mbstowcs;
- using ::mbtowc;
- using ::wcstombs;
- using ::wctomb;
+ using ::mbstowcs _LIBCPP_USING_IF_EXISTS;
+ using ::mbtowc _LIBCPP_USING_IF_EXISTS;
+ using ::wcstombs _LIBCPP_USING_IF_EXISTS;
+ using ::wctomb _LIBCPP_USING_IF_EXISTS;
#endif
// [alg.c.library], C standard library algorithms
- using ::bsearch;
- using ::qsort;
+ using ::bsearch _LIBCPP_USING_IF_EXISTS;
+ using ::qsort _LIBCPP_USING_IF_EXISTS;
// [c.math.rand], low-quality random number generation
- using ::rand;
- using ::srand;
+ using ::rand _LIBCPP_USING_IF_EXISTS;
+ using ::srand _LIBCPP_USING_IF_EXISTS;
// [c.math.abs], absolute values
- using ::abs;
+ using ::abs _LIBCPP_USING_IF_EXISTS;
- using ::labs;
- using ::llabs;
+ using ::labs _LIBCPP_USING_IF_EXISTS;
+ using ::llabs _LIBCPP_USING_IF_EXISTS;
- using ::div;
- using ::ldiv;
- using ::lldiv;
+ using ::div _LIBCPP_USING_IF_EXISTS;
+ using ::ldiv _LIBCPP_USING_IF_EXISTS;
+ using ::lldiv _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cstring.inc b/libcxx/modules/std.compat/cstring.inc
index 090350ae814786..5029a7674bb210 100644
--- a/libcxx/modules/std.compat/cstring.inc
+++ b/libcxx/modules/std.compat/cstring.inc
@@ -8,29 +8,29 @@
//===----------------------------------------------------------------------===//
export {
- using ::size_t;
+ using ::size_t _LIBCPP_USING_IF_EXISTS;
- using ::memchr;
- using ::memcmp;
- using ::memcpy;
- using ::memmove;
- using ::memset;
- using ::strcat;
- using ::strchr;
- using ::strcmp;
- using ::strcoll;
- using ::strcpy;
- using ::strcspn;
- using ::strerror;
- using ::strlen;
- using ::strncat;
- using ::strncmp;
- using ::strncpy;
- using ::strpbrk;
- using ::strrchr;
- using ::strspn;
- using ::strstr;
- using ::strtok;
- using ::strxfrm;
+ using ::memchr _LIBCPP_USING_IF_EXISTS;
+ using ::memcmp _LIBCPP_USING_IF_EXISTS;
+ using ::memcpy _LIBCPP_USING_IF_EXISTS;
+ using ::memmove _LIBCPP_USING_IF_EXISTS;
+ using ::memset _LIBCPP_USING_IF_EXISTS;
+ using ::strcat _LIBCPP_USING_IF_EXISTS;
+ using ::strchr _LIBCPP_USING_IF_EXISTS;
+ using ::strcmp _LIBCPP_USING_IF_EXISTS;
+ using ::strcoll _LIBCPP_USING_IF_EXISTS;
+ using ::strcpy _LIBCPP_USING_IF_EXISTS;
+ using ::strcspn _LIBCPP_USING_IF_EXISTS;
+ using ::strerror _LIBCPP_USING_IF_EXISTS;
+ using ::strlen _LIBCPP_USING_IF_EXISTS;
+ using ::strncat _LIBCPP_USING_IF_EXISTS;
+ using ::strncmp _LIBCPP_USING_IF_EXISTS;
+ using ::strncpy _LIBCPP_USING_IF_EXISTS;
+ using ::strpbrk _LIBCPP_USING_IF_EXISTS;
+ using ::strrchr _LIBCPP_USING_IF_EXISTS;
+ using ::strspn _LIBCPP_USING_IF_EXISTS;
+ using ::strstr _LIBCPP_USING_IF_EXISTS;
+ using ::strtok _LIBCPP_USING_IF_EXISTS;
+ using ::strxfrm _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/ctime.inc b/libcxx/modules/std.compat/ctime.inc
index 6e621f494348d7..eba8234a08969e 100644
--- a/libcxx/modules/std.compat/ctime.inc
+++ b/libcxx/modules/std.compat/ctime.inc
@@ -8,21 +8,21 @@
//===----------------------------------------------------------------------===//
export {
- using ::clock_t;
- using ::size_t;
- using ::time_t;
+ using ::clock_t _LIBCPP_USING_IF_EXISTS;
+ using ::size_t _LIBCPP_USING_IF_EXISTS;
+ using ::time_t _LIBCPP_USING_IF_EXISTS;
- using ::timespec;
- using ::tm;
+ using ::timespec _LIBCPP_USING_IF_EXISTS;
+ using ::tm _LIBCPP_USING_IF_EXISTS;
- using ::asctime;
- using ::clock;
- using ::ctime;
- using ::difftime;
- using ::gmtime;
- using ::localtime;
- using ::mktime;
- using ::strftime;
- using ::time;
+ using ::asctime _LIBCPP_USING_IF_EXISTS;
+ using ::clock _LIBCPP_USING_IF_EXISTS;
+ using ::ctime _LIBCPP_USING_IF_EXISTS;
+ using ::difftime _LIBCPP_USING_IF_EXISTS;
+ using ::gmtime _LIBCPP_USING_IF_EXISTS;
+ using ::localtime _LIBCPP_USING_IF_EXISTS;
+ using ::mktime _LIBCPP_USING_IF_EXISTS;
+ using ::strftime _LIBCPP_USING_IF_EXISTS;
+ using ::time _LIBCPP_USING_IF_EXISTS;
using ::timespec_get _LIBCPP_USING_IF_EXISTS;
} // export
diff --git a/libcxx/modules/std.compat/cwchar.inc b/libcxx/modules/std.compat/cwchar.inc
index 8905aecbdfecc2..4cad9281fb49a2 100644
--- a/libcxx/modules/std.compat/cwchar.inc
+++ b/libcxx/modules/std.compat/cwchar.inc
@@ -9,72 +9,72 @@
export {
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using ::mbstate_t;
- using ::size_t;
- using ::wint_t;
+ using ::mbstate_t _LIBCPP_USING_IF_EXISTS;
+ using ::size_t _LIBCPP_USING_IF_EXISTS;
+ using ::wint_t _LIBCPP_USING_IF_EXISTS;
- using ::tm;
+ using ::tm _LIBCPP_USING_IF_EXISTS;
- using ::btowc;
- using ::fgetwc;
- using ::fgetws;
- using ::fputwc;
- using ::fputws;
- using ::fwide;
- using ::fwprintf;
- using ::fwscanf;
- using ::getwc;
- using ::getwchar;
- using ::putwc;
- using ::putwchar;
- using ::swprintf;
- using ::swscanf;
- using ::ungetwc;
- using ::vfwprintf;
- using ::vfwscanf;
- using ::vswprintf;
- using ::vswscanf;
- using ::vwprintf;
- using ::vwscanf;
- using ::wcscat;
- using ::wcschr;
- using ::wcscmp;
- using ::wcscoll;
- using ::wcscpy;
- using ::wcscspn;
- using ::wcsftime;
- using ::wcslen;
- using ::wcsncat;
- using ::wcsncmp;
- using ::wcsncpy;
- using ::wcspbrk;
- using ::wcsrchr;
- using ::wcsspn;
- using ::wcsstr;
- using ::wcstod;
- using ::wcstof;
- using ::wcstok;
- using ::wcstol;
- using ::wcstold;
- using ::wcstoll;
- using ::wcstoul;
- using ::wcstoull;
- using ::wcsxfrm;
- using ::wctob;
- using ::wmemchr;
- using ::wmemcmp;
- using ::wmemcpy;
- using ::wmemmove;
- using ::wmemset;
- using ::wprintf;
- using ::wscanf;
+ using ::btowc _LIBCPP_USING_IF_EXISTS;
+ using ::fgetwc _LIBCPP_USING_IF_EXISTS;
+ using ::fgetws _LIBCPP_USING_IF_EXISTS;
+ using ::fputwc _LIBCPP_USING_IF_EXISTS;
+ using ::fputws _LIBCPP_USING_IF_EXISTS;
+ using ::fwide _LIBCPP_USING_IF_EXISTS;
+ using ::fwprintf _LIBCPP_USING_IF_EXISTS;
+ using ::fwscanf _LIBCPP_USING_IF_EXISTS;
+ using ::getwc _LIBCPP_USING_IF_EXISTS;
+ using ::getwchar _LIBCPP_USING_IF_EXISTS;
+ using ::putwc _LIBCPP_USING_IF_EXISTS;
+ using ::putwchar _LIBCPP_USING_IF_EXISTS;
+ using ::swprintf _LIBCPP_USING_IF_EXISTS;
+ using ::swscanf _LIBCPP_USING_IF_EXISTS;
+ using ::ungetwc _LIBCPP_USING_IF_EXISTS;
+ using ::vfwprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vfwscanf _LIBCPP_USING_IF_EXISTS;
+ using ::vswprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vswscanf _LIBCPP_USING_IF_EXISTS;
+ using ::vwprintf _LIBCPP_USING_IF_EXISTS;
+ using ::vwscanf _LIBCPP_USING_IF_EXISTS;
+ using ::wcscat _LIBCPP_USING_IF_EXISTS;
+ using ::wcschr _LIBCPP_USING_IF_EXISTS;
+ using ::wcscmp _LIBCPP_USING_IF_EXISTS;
+ using ::wcscoll _LIBCPP_USING_IF_EXISTS;
+ using ::wcscpy _LIBCPP_USING_IF_EXISTS;
+ using ::wcscspn _LIBCPP_USING_IF_EXISTS;
+ using ::wcsftime _LIBCPP_USING_IF_EXISTS;
+ using ::wcslen _LIBCPP_USING_IF_EXISTS;
+ using ::wcsncat _LIBCPP_USING_IF_EXISTS;
+ using ::wcsncmp _LIBCPP_USING_IF_EXISTS;
+ using ::wcsncpy _LIBCPP_USING_IF_EXISTS;
+ using ::wcspbrk _LIBCPP_USING_IF_EXISTS;
+ using ::wcsrchr _LIBCPP_USING_IF_EXISTS;
+ using ::wcsspn _LIBCPP_USING_IF_EXISTS;
+ using ::wcsstr _LIBCPP_USING_IF_EXISTS;
+ using ::wcstod _LIBCPP_USING_IF_EXISTS;
+ using ::wcstof _LIBCPP_USING_IF_EXISTS;
+ using ::wcstok _LIBCPP_USING_IF_EXISTS;
+ using ::wcstol _LIBCPP_USING_IF_EXISTS;
+ using ::wcstold _LIBCPP_USING_IF_EXISTS;
+ using ::wcstoll _LIBCPP_USING_IF_EXISTS;
+ using ::wcstoul _LIBCPP_USING_IF_EXISTS;
+ using ::wcstoull _LIBCPP_USING_IF_EXISTS;
+ using ::wcsxfrm _LIBCPP_USING_IF_EXISTS;
+ using ::wctob _LIBCPP_USING_IF_EXISTS;
+ using ::wmemchr _LIBCPP_USING_IF_EXISTS;
+ using ::wmemcmp _LIBCPP_USING_IF_EXISTS;
+ using ::wmemcpy _LIBCPP_USING_IF_EXISTS;
+ using ::wmemmove _LIBCPP_USING_IF_EXISTS;
+ using ::wmemset _LIBCPP_USING_IF_EXISTS;
+ using ::wprintf _LIBCPP_USING_IF_EXISTS;
+ using ::wscanf _LIBCPP_USING_IF_EXISTS;
// [c.mb.wcs], multibyte / wide string and character conversion functions
- using ::mbrlen;
- using ::mbrtowc;
- using ::mbsinit;
- using ::mbsrtowcs;
- using ::wcrtomb;
- using ::wcsrtombs;
+ using ::mbrlen _LIBCPP_USING_IF_EXISTS;
+ using ::mbrtowc _LIBCPP_USING_IF_EXISTS;
+ using ::mbsinit _LIBCPP_USING_IF_EXISTS;
+ using ::mbsrtowcs _LIBCPP_USING_IF_EXISTS;
+ using ::wcrtomb _LIBCPP_USING_IF_EXISTS;
+ using ::wcsrtombs _LIBCPP_USING_IF_EXISTS;
#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
} // export
diff --git a/libcxx/modules/std.compat/cwctype.inc b/libcxx/modules/std.compat/cwctype.inc
index 13aa2b7f3fb746..8d06eaa379eaa2 100644
--- a/libcxx/modules/std.compat/cwctype.inc
+++ b/libcxx/modules/std.compat/cwctype.inc
@@ -9,27 +9,27 @@
export {
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using ::wctrans_t;
- using ::wctype_t;
- using ::wint_t;
+ using ::wctrans_t _LIBCPP_USING_IF_EXISTS;
+ using ::wctype_t _LIBCPP_USING_IF_EXISTS;
+ using ::wint_t _LIBCPP_USING_IF_EXISTS;
- using ::iswalnum;
- using ::iswalpha;
- using ::iswblank;
- using ::iswcntrl;
- using ::iswctype;
- using ::iswdigit;
- using ::iswgraph;
- using ::iswlower;
- using ::iswprint;
- using ::iswpunct;
- using ::iswspace;
- using ::iswupper;
- using ::iswxdigit;
- using ::towctrans;
- using ::towlower;
- using ::towupper;
- using ::wctrans;
- using ::wctype;
+ using ::iswalnum _LIBCPP_USING_IF_EXISTS;
+ using ::iswalpha _LIBCPP_USING_IF_EXISTS;
+ using ::iswblank _LIBCPP_USING_IF_EXISTS;
+ using ::iswcntrl _LIBCPP_USING_IF_EXISTS;
+ using ::iswctype _LIBCPP_USING_IF_EXISTS;
+ using ::iswdigit _LIBCPP_USING_IF_EXISTS;
+ using ::iswgraph _LIBCPP_USING_IF_EXISTS;
+ using ::iswlower _LIBCPP_USING_IF_EXISTS;
+ using ::iswprint _LIBCPP_USING_IF_EXISTS;
+ using ::iswpunct _LIBCPP_USING_IF_EXISTS;
+ using ::iswspace _LIBCPP_USING_IF_EXISTS;
+ using ::iswupper _LIBCPP_USING_IF_EXISTS;
+ using ::iswxdigit _LIBCPP_USING_IF_EXISTS;
+ using ::towctrans _LIBCPP_USING_IF_EXISTS;
+ using ::towlower _LIBCPP_USING_IF_EXISTS;
+ using ::towupper _LIBCPP_USING_IF_EXISTS;
+ using ::wctrans _LIBCPP_USING_IF_EXISTS;
+ using ::wctype _LIBCPP_USING_IF_EXISTS;
#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
} // export
diff --git a/libcxx/modules/std/atomic.inc b/libcxx/modules/std/atomic.inc
index 2b54cef863e571..d77d7a5bb0fbc1 100644
--- a/libcxx/modules/std/atomic.inc
+++ b/libcxx/modules/std/atomic.inc
@@ -10,132 +10,132 @@
export namespace std {
// [atomics.order], order and consistency
- using std::memory_order;
- using std::memory_order_acq_rel;
- using std::memory_order_acquire;
- using std::memory_order_consume;
- using std::memory_order_relaxed;
- using std::memory_order_release;
- using std::memory_order_seq_cst;
+ using std::memory_order _LIBCPP_USING_IF_EXISTS;
+ using std::memory_order_acq_rel _LIBCPP_USING_IF_EXISTS;
+ using std::memory_order_acquire _LIBCPP_USING_IF_EXISTS;
+ using std::memory_order_consume _LIBCPP_USING_IF_EXISTS;
+ using std::memory_order_relaxed _LIBCPP_USING_IF_EXISTS;
+ using std::memory_order_release _LIBCPP_USING_IF_EXISTS;
+ using std::memory_order_seq_cst _LIBCPP_USING_IF_EXISTS;
- using std::kill_dependency;
+ using std::kill_dependency _LIBCPP_USING_IF_EXISTS;
// [atomics.ref.generic], class template atomic_ref
// [atomics.ref.pointer], partial specialization for pointers
- // using std::atomic_ref;
+ // using std::atomic_ref _LIBCPP_USING_IF_EXISTS;
// [atomics.types.generic], class template atomic
- using std::atomic;
+ using std::atomic _LIBCPP_USING_IF_EXISTS;
// [atomics.nonmembers], non-member functions
- using std::atomic_compare_exchange_strong;
- using std::atomic_compare_exchange_strong_explicit;
- using std::atomic_compare_exchange_weak;
- using std::atomic_compare_exchange_weak_explicit;
- using std::atomic_exchange;
- using std::atomic_exchange_explicit;
- using std::atomic_is_lock_free;
- using std::atomic_load;
- using std::atomic_load_explicit;
- using std::atomic_store;
- using std::atomic_store_explicit;
-
- using std::atomic_fetch_add;
- using std::atomic_fetch_add_explicit;
- using std::atomic_fetch_and;
- using std::atomic_fetch_and_explicit;
- using std::atomic_fetch_or;
- using std::atomic_fetch_or_explicit;
- using std::atomic_fetch_sub;
- using std::atomic_fetch_sub_explicit;
- using std::atomic_fetch_xor;
- using std::atomic_fetch_xor_explicit;
- using std::atomic_notify_all;
- using std::atomic_notify_one;
- using std::atomic_wait;
- using std::atomic_wait_explicit;
+ using std::atomic_compare_exchange_strong _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_compare_exchange_strong_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_compare_exchange_weak _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_compare_exchange_weak_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_exchange _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_exchange_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_is_lock_free _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_load _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_load_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_store _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_store_explicit _LIBCPP_USING_IF_EXISTS;
+
+ using std::atomic_fetch_add _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_add_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_and _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_and_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_or _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_or_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_sub _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_sub_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_xor _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_fetch_xor_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_notify_all _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_notify_one _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_wait _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_wait_explicit _LIBCPP_USING_IF_EXISTS;
// [atomics.alias], type aliases
- using std::atomic_bool;
- using std::atomic_char;
- using std::atomic_char16_t;
- using std::atomic_char32_t;
+ using std::atomic_bool _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_char _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_char16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_char32_t _LIBCPP_USING_IF_EXISTS;
#ifndef _LIBCPP_HAS_NO_CHAR8_T
- using std::atomic_char8_t;
+ using std::atomic_char8_t _LIBCPP_USING_IF_EXISTS;
#endif
- using std::atomic_int;
- using std::atomic_llong;
- using std::atomic_long;
- using std::atomic_schar;
- using std::atomic_short;
- using std::atomic_uchar;
- using std::atomic_uint;
- using std::atomic_ullong;
- using std::atomic_ulong;
- using std::atomic_ushort;
+ using std::atomic_int _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_llong _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_long _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_schar _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_short _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uchar _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_ullong _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_ulong _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_ushort _LIBCPP_USING_IF_EXISTS;
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using std::atomic_wchar_t;
+ using std::atomic_wchar_t _LIBCPP_USING_IF_EXISTS;
#endif
- using std::atomic_int16_t;
- using std::atomic_int32_t;
- using std::atomic_int64_t;
- using std::atomic_int8_t;
- using std::atomic_uint16_t;
- using std::atomic_uint32_t;
- using std::atomic_uint64_t;
- using std::atomic_uint8_t;
-
- using std::atomic_int_least16_t;
- using std::atomic_int_least32_t;
- using std::atomic_int_least64_t;
- using std::atomic_int_least8_t;
- using std::atomic_uint_least16_t;
- using std::atomic_uint_least32_t;
- using std::atomic_uint_least64_t;
- using std::atomic_uint_least8_t;
-
- using std::atomic_int_fast16_t;
- using std::atomic_int_fast32_t;
- using std::atomic_int_fast64_t;
- using std::atomic_int_fast8_t;
- using std::atomic_uint_fast16_t;
- using std::atomic_uint_fast32_t;
- using std::atomic_uint_fast64_t;
- using std::atomic_uint_fast8_t;
-
- using std::atomic_intmax_t;
- using std::atomic_intptr_t;
- using std::atomic_ptrdiff_t;
- using std::atomic_size_t;
- using std::atomic_uintmax_t;
- using std::atomic_uintptr_t;
+ using std::atomic_int16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int32_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int64_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int8_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint32_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint64_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint8_t _LIBCPP_USING_IF_EXISTS;
+
+ using std::atomic_int_least16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int_least32_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int_least64_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int_least8_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_least16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_least32_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_least64_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_least8_t _LIBCPP_USING_IF_EXISTS;
+
+ using std::atomic_int_fast16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int_fast32_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int_fast64_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_int_fast8_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_fast16_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_fast32_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_fast64_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uint_fast8_t _LIBCPP_USING_IF_EXISTS;
+
+ using std::atomic_intmax_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_intptr_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_ptrdiff_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_size_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uintmax_t _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_uintptr_t _LIBCPP_USING_IF_EXISTS;
#ifndef _LIBCPP_NO_LOCK_FREE_TYPES
- using std::atomic_signed_lock_free;
- using std::atomic_unsigned_lock_free;
+ using std::atomic_signed_lock_free _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_unsigned_lock_free _LIBCPP_USING_IF_EXISTS;
#endif
// [atomics.flag], flag type and operations
- using std::atomic_flag;
+ using std::atomic_flag _LIBCPP_USING_IF_EXISTS;
- using std::atomic_flag_clear;
- using std::atomic_flag_clear_explicit;
- using std::atomic_flag_test;
- using std::atomic_flag_test_and_set;
- using std::atomic_flag_test_and_set_explicit;
- using std::atomic_flag_test_explicit;
+ using std::atomic_flag_clear _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_clear_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_test _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_test_and_set _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_test_and_set_explicit _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_test_explicit _LIBCPP_USING_IF_EXISTS;
- using std::atomic_flag_notify_all;
- using std::atomic_flag_notify_one;
- using std::atomic_flag_wait;
- using std::atomic_flag_wait_explicit;
+ using std::atomic_flag_notify_all _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_notify_one _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_wait _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_flag_wait_explicit _LIBCPP_USING_IF_EXISTS;
// [atomics.fences], fences
- using std::atomic_signal_fence;
- using std::atomic_thread_fence;
+ using std::atomic_signal_fence _LIBCPP_USING_IF_EXISTS;
+ using std::atomic_thread_fence _LIBCPP_USING_IF_EXISTS;
// [depr.atomics.nonmembers]
- using std::atomic_init;
+ using std::atomic_init _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cctype.inc b/libcxx/modules/std/cctype.inc
index 075dbbe78198e8..43417aa159624c 100644
--- a/libcxx/modules/std/cctype.inc
+++ b/libcxx/modules/std/cctype.inc
@@ -8,18 +8,18 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::isalnum;
- using std::isalpha;
- using std::isblank;
- using std::iscntrl;
- using std::isdigit;
- using std::isgraph;
- using std::islower;
- using std::isprint;
- using std::ispunct;
- using std::isspace;
- using std::isupper;
- using std::isxdigit;
- using std::tolower;
- using std::toupper;
+ using std::isalnum _LIBCPP_USING_IF_EXISTS;
+ using std::isalpha _LIBCPP_USING_IF_EXISTS;
+ using std::isblank _LIBCPP_USING_IF_EXISTS;
+ using std::iscntrl _LIBCPP_USING_IF_EXISTS;
+ using std::isdigit _LIBCPP_USING_IF_EXISTS;
+ using std::isgraph _LIBCPP_USING_IF_EXISTS;
+ using std::islower _LIBCPP_USING_IF_EXISTS;
+ using std::isprint _LIBCPP_USING_IF_EXISTS;
+ using std::ispunct _LIBCPP_USING_IF_EXISTS;
+ using std::isspace _LIBCPP_USING_IF_EXISTS;
+ using std::isupper _LIBCPP_USING_IF_EXISTS;
+ using std::isxdigit _LIBCPP_USING_IF_EXISTS;
+ using std::tolower _LIBCPP_USING_IF_EXISTS;
+ using std::toupper _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cfenv.inc b/libcxx/modules/std/cfenv.inc
index 34a8a7afa846f5..831c1fed8ebefb 100644
--- a/libcxx/modules/std/cfenv.inc
+++ b/libcxx/modules/std/cfenv.inc
@@ -9,22 +9,22 @@
export namespace std {
// types
- using std::fenv_t;
- using std::fexcept_t;
+ using std::fenv_t _LIBCPP_USING_IF_EXISTS;
+ using std::fexcept_t _LIBCPP_USING_IF_EXISTS;
// functions
- using std::feclearexcept;
- using std::fegetexceptflag;
- using std::feraiseexcept;
- using std::fesetexceptflag;
- using std::fetestexcept;
+ using std::feclearexcept _LIBCPP_USING_IF_EXISTS;
+ using std::fegetexceptflag _LIBCPP_USING_IF_EXISTS;
+ using std::feraiseexcept _LIBCPP_USING_IF_EXISTS;
+ using std::fesetexceptflag _LIBCPP_USING_IF_EXISTS;
+ using std::fetestexcept _LIBCPP_USING_IF_EXISTS;
- using std::fegetround;
- using std::fesetround;
+ using std::fegetround _LIBCPP_USING_IF_EXISTS;
+ using std::fesetround _LIBCPP_USING_IF_EXISTS;
- using std::fegetenv;
- using std::feholdexcept;
- using std::fesetenv;
- using std::feupdateenv;
+ using std::fegetenv _LIBCPP_USING_IF_EXISTS;
+ using std::feholdexcept _LIBCPP_USING_IF_EXISTS;
+ using std::fesetenv _LIBCPP_USING_IF_EXISTS;
+ using std::feupdateenv _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cinttypes.inc b/libcxx/modules/std/cinttypes.inc
index 2e135926598652..b2b98c973e9826 100644
--- a/libcxx/modules/std/cinttypes.inc
+++ b/libcxx/modules/std/cinttypes.inc
@@ -8,14 +8,14 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::imaxdiv_t;
+ using std::imaxdiv_t _LIBCPP_USING_IF_EXISTS;
- using std::imaxabs;
- using std::imaxdiv;
- using std::strtoimax;
- using std::strtoumax;
- using std::wcstoimax;
- using std::wcstoumax;
+ using std::imaxabs _LIBCPP_USING_IF_EXISTS;
+ using std::imaxdiv _LIBCPP_USING_IF_EXISTS;
+ using std::strtoimax _LIBCPP_USING_IF_EXISTS;
+ using std::strtoumax _LIBCPP_USING_IF_EXISTS;
+ using std::wcstoimax _LIBCPP_USING_IF_EXISTS;
+ using std::wcstoumax _LIBCPP_USING_IF_EXISTS;
// abs is conditionally here, but always present in cmath.cppm. To avoid
// conflicing declarations omit the using here.
diff --git a/libcxx/modules/std/clocale.inc b/libcxx/modules/std/clocale.inc
index 3efe1595dc05d6..359868a61eb9d7 100644
--- a/libcxx/modules/std/clocale.inc
+++ b/libcxx/modules/std/clocale.inc
@@ -9,9 +9,9 @@
export namespace std {
#ifndef _LIBCPP_HAS_NO_LOCALIZATION
- using std::lconv;
+ using std::lconv _LIBCPP_USING_IF_EXISTS;
- using std::localeconv;
- using std::setlocale;
+ using std::localeconv _LIBCPP_USING_IF_EXISTS;
+ using std::setlocale _LIBCPP_USING_IF_EXISTS;
#endif // _LIBCPP_HAS_NO_LOCALIZATION
} // namespace std
diff --git a/libcxx/modules/std/cmath.inc b/libcxx/modules/std/cmath.inc
index 0fe887447ad850..a463c1e3ccf861 100644
--- a/libcxx/modules/std/cmath.inc
+++ b/libcxx/modules/std/cmath.inc
@@ -9,258 +9,258 @@
export namespace std {
- using std::double_t;
- using std::float_t;
+ using std::double_t _LIBCPP_USING_IF_EXISTS;
+ using std::float_t _LIBCPP_USING_IF_EXISTS;
- using std::acos;
- using std::acosf;
- using std::acosl;
+ using std::acos _LIBCPP_USING_IF_EXISTS;
+ using std::acosf _LIBCPP_USING_IF_EXISTS;
+ using std::acosl _LIBCPP_USING_IF_EXISTS;
- using std::asin;
- using std::asinf;
- using std::asinl;
+ using std::asin _LIBCPP_USING_IF_EXISTS;
+ using std::asinf _LIBCPP_USING_IF_EXISTS;
+ using std::asinl _LIBCPP_USING_IF_EXISTS;
- using std::atan;
- using std::atanf;
- using std::atanl;
+ using std::atan _LIBCPP_USING_IF_EXISTS;
+ using std::atanf _LIBCPP_USING_IF_EXISTS;
+ using std::atanl _LIBCPP_USING_IF_EXISTS;
- using std::atan2;
- using std::atan2f;
- using std::atan2l;
+ using std::atan2 _LIBCPP_USING_IF_EXISTS;
+ using std::atan2f _LIBCPP_USING_IF_EXISTS;
+ using std::atan2l _LIBCPP_USING_IF_EXISTS;
- using std::cos;
- using std::cosf;
- using std::cosl;
+ using std::cos _LIBCPP_USING_IF_EXISTS;
+ using std::cosf _LIBCPP_USING_IF_EXISTS;
+ using std::cosl _LIBCPP_USING_IF_EXISTS;
- using std::sin;
- using std::sinf;
- using std::sinl;
+ using std::sin _LIBCPP_USING_IF_EXISTS;
+ using std::sinf _LIBCPP_USING_IF_EXISTS;
+ using std::sinl _LIBCPP_USING_IF_EXISTS;
- using std::tan;
- using std::tanf;
- using std::tanl;
+ using std::tan _LIBCPP_USING_IF_EXISTS;
+ using std::tanf _LIBCPP_USING_IF_EXISTS;
+ using std::tanl _LIBCPP_USING_IF_EXISTS;
- using std::acosh;
- using std::acoshf;
- using std::acoshl;
+ using std::acosh _LIBCPP_USING_IF_EXISTS;
+ using std::acoshf _LIBCPP_USING_IF_EXISTS;
+ using std::acoshl _LIBCPP_USING_IF_EXISTS;
- using std::asinh;
- using std::asinhf;
- using std::asinhl;
+ using std::asinh _LIBCPP_USING_IF_EXISTS;
+ using std::asinhf _LIBCPP_USING_IF_EXISTS;
+ using std::asinhl _LIBCPP_USING_IF_EXISTS;
- using std::atanh;
- using std::atanhf;
- using std::atanhl;
+ using std::atanh _LIBCPP_USING_IF_EXISTS;
+ using std::atanhf _LIBCPP_USING_IF_EXISTS;
+ using std::atanhl _LIBCPP_USING_IF_EXISTS;
- using std::cosh;
- using std::coshf;
- using std::coshl;
+ using std::cosh _LIBCPP_USING_IF_EXISTS;
+ using std::coshf _LIBCPP_USING_IF_EXISTS;
+ using std::coshl _LIBCPP_USING_IF_EXISTS;
- using std::sinh;
- using std::sinhf;
- using std::sinhl;
+ using std::sinh _LIBCPP_USING_IF_EXISTS;
+ using std::sinhf _LIBCPP_USING_IF_EXISTS;
+ using std::sinhl _LIBCPP_USING_IF_EXISTS;
- using std::tanh;
- using std::tanhf;
- using std::tanhl;
+ using std::tanh _LIBCPP_USING_IF_EXISTS;
+ using std::tanhf _LIBCPP_USING_IF_EXISTS;
+ using std::tanhl _LIBCPP_USING_IF_EXISTS;
- using std::exp;
- using std::expf;
- using std::expl;
+ using std::exp _LIBCPP_USING_IF_EXISTS;
+ using std::expf _LIBCPP_USING_IF_EXISTS;
+ using std::expl _LIBCPP_USING_IF_EXISTS;
- using std::exp2;
- using std::exp2f;
- using std::exp2l;
+ using std::exp2 _LIBCPP_USING_IF_EXISTS;
+ using std::exp2f _LIBCPP_USING_IF_EXISTS;
+ using std::exp2l _LIBCPP_USING_IF_EXISTS;
- using std::expm1;
- using std::expm1f;
- using std::expm1l;
+ using std::expm1 _LIBCPP_USING_IF_EXISTS;
+ using std::expm1f _LIBCPP_USING_IF_EXISTS;
+ using std::expm1l _LIBCPP_USING_IF_EXISTS;
- using std::frexp;
- using std::frexpf;
- using std::frexpl;
+ using std::frexp _LIBCPP_USING_IF_EXISTS;
+ using std::frexpf _LIBCPP_USING_IF_EXISTS;
+ using std::frexpl _LIBCPP_USING_IF_EXISTS;
- using std::ilogb;
- using std::ilogbf;
- using std::ilogbl;
+ using std::ilogb _LIBCPP_USING_IF_EXISTS;
+ using std::ilogbf _LIBCPP_USING_IF_EXISTS;
+ using std::ilogbl _LIBCPP_USING_IF_EXISTS;
- using std::ldexp;
- using std::ldexpf;
- using std::ldexpl;
+ using std::ldexp _LIBCPP_USING_IF_EXISTS;
+ using std::ldexpf _LIBCPP_USING_IF_EXISTS;
+ using std::ldexpl _LIBCPP_USING_IF_EXISTS;
- using std::log;
- using std::logf;
- using std::logl;
+ using std::log _LIBCPP_USING_IF_EXISTS;
+ using std::logf _LIBCPP_USING_IF_EXISTS;
+ using std::logl _LIBCPP_USING_IF_EXISTS;
- using std::log10;
- using std::log10f;
- using std::log10l;
+ using std::log10 _LIBCPP_USING_IF_EXISTS;
+ using std::log10f _LIBCPP_USING_IF_EXISTS;
+ using std::log10l _LIBCPP_USING_IF_EXISTS;
- using std::log1p;
- using std::log1pf;
- using std::log1pl;
+ using std::log1p _LIBCPP_USING_IF_EXISTS;
+ using std::log1pf _LIBCPP_USING_IF_EXISTS;
+ using std::log1pl _LIBCPP_USING_IF_EXISTS;
- using std::log2;
- using std::log2f;
- using std::log2l;
+ using std::log2 _LIBCPP_USING_IF_EXISTS;
+ using std::log2f _LIBCPP_USING_IF_EXISTS;
+ using std::log2l _LIBCPP_USING_IF_EXISTS;
- using std::logb;
- using std::logbf;
- using std::logbl;
+ using std::logb _LIBCPP_USING_IF_EXISTS;
+ using std::logbf _LIBCPP_USING_IF_EXISTS;
+ using std::logbl _LIBCPP_USING_IF_EXISTS;
- using std::modf;
- using std::modff;
- using std::modfl;
+ using std::modf _LIBCPP_USING_IF_EXISTS;
+ using std::modff _LIBCPP_USING_IF_EXISTS;
+ using std::modfl _LIBCPP_USING_IF_EXISTS;
- using std::scalbn;
- using std::scalbnf;
- using std::scalbnl;
+ using std::scalbn _LIBCPP_USING_IF_EXISTS;
+ using std::scalbnf _LIBCPP_USING_IF_EXISTS;
+ using std::scalbnl _LIBCPP_USING_IF_EXISTS;
- using std::scalbln;
- using std::scalblnf;
- using std::scalblnl;
+ using std::scalbln _LIBCPP_USING_IF_EXISTS;
+ using std::scalblnf _LIBCPP_USING_IF_EXISTS;
+ using std::scalblnl _LIBCPP_USING_IF_EXISTS;
- using std::cbrt;
- using std::cbrtf;
- using std::cbrtl;
+ using std::cbrt _LIBCPP_USING_IF_EXISTS;
+ using std::cbrtf _LIBCPP_USING_IF_EXISTS;
+ using std::cbrtl _LIBCPP_USING_IF_EXISTS;
// [c.math.abs], absolute values
- using std::abs;
+ using std::abs _LIBCPP_USING_IF_EXISTS;
- using std::fabs;
- using std::fabsf;
- using std::fabsl;
+ using std::fabs _LIBCPP_USING_IF_EXISTS;
+ using std::fabsf _LIBCPP_USING_IF_EXISTS;
+ using std::fabsl _LIBCPP_USING_IF_EXISTS;
- using std::hypot;
- using std::hypotf;
- using std::hypotl;
+ using std::hypot _LIBCPP_USING_IF_EXISTS;
+ using std::hypotf _LIBCPP_USING_IF_EXISTS;
+ using std::hypotl _LIBCPP_USING_IF_EXISTS;
// [c.math.hypot3], three-dimensional hypotenuse
- using std::pow;
- using std::powf;
- using std::powl;
+ using std::pow _LIBCPP_USING_IF_EXISTS;
+ using std::powf _LIBCPP_USING_IF_EXISTS;
+ using std::powl _LIBCPP_USING_IF_EXISTS;
- using std::sqrt;
- using std::sqrtf;
- using std::sqrtl;
+ using std::sqrt _LIBCPP_USING_IF_EXISTS;
+ using std::sqrtf _LIBCPP_USING_IF_EXISTS;
+ using std::sqrtl _LIBCPP_USING_IF_EXISTS;
- using std::erf;
- using std::erff;
- using std::erfl;
+ using std::erf _LIBCPP_USING_IF_EXISTS;
+ using std::erff _LIBCPP_USING_IF_EXISTS;
+ using std::erfl _LIBCPP_USING_IF_EXISTS;
- using std::erfc;
- using std::erfcf;
- using std::erfcl;
+ using std::erfc _LIBCPP_USING_IF_EXISTS;
+ using std::erfcf _LIBCPP_USING_IF_EXISTS;
+ using std::erfcl _LIBCPP_USING_IF_EXISTS;
- using std::lgamma;
- using std::lgammaf;
- using std::lgammal;
+ using std::lgamma _LIBCPP_USING_IF_EXISTS;
+ using std::lgammaf _LIBCPP_USING_IF_EXISTS;
+ using std::lgammal _LIBCPP_USING_IF_EXISTS;
- using std::tgamma;
- using std::tgammaf;
- using std::tgammal;
+ using std::tgamma _LIBCPP_USING_IF_EXISTS;
+ using std::tgammaf _LIBCPP_USING_IF_EXISTS;
+ using std::tgammal _LIBCPP_USING_IF_EXISTS;
- using std::ceil;
- using std::ceilf;
- using std::ceill;
+ using std::ceil _LIBCPP_USING_IF_EXISTS;
+ using std::ceilf _LIBCPP_USING_IF_EXISTS;
+ using std::ceill _LIBCPP_USING_IF_EXISTS;
- using std::floor;
- using std::floorf;
- using std::floorl;
+ using std::floor _LIBCPP_USING_IF_EXISTS;
+ using std::floorf _LIBCPP_USING_IF_EXISTS;
+ using std::floorl _LIBCPP_USING_IF_EXISTS;
- using std::nearbyint;
- using std::nearbyintf;
- using std::nearbyintl;
+ using std::nearbyint _LIBCPP_USING_IF_EXISTS;
+ using std::nearbyintf _LIBCPP_USING_IF_EXISTS;
+ using std::nearbyintl _LIBCPP_USING_IF_EXISTS;
- using std::rint;
- using std::rintf;
- using std::rintl;
+ using std::rint _LIBCPP_USING_IF_EXISTS;
+ using std::rintf _LIBCPP_USING_IF_EXISTS;
+ using std::rintl _LIBCPP_USING_IF_EXISTS;
- using std::lrint;
- using std::lrintf;
- using std::lrintl;
+ using std::lrint _LIBCPP_USING_IF_EXISTS;
+ using std::lrintf _LIBCPP_USING_IF_EXISTS;
+ using std::lrintl _LIBCPP_USING_IF_EXISTS;
- using std::llrint;
- using std::llrintf;
- using std::llrintl;
+ using std::llrint _LIBCPP_USING_IF_EXISTS;
+ using std::llrintf _LIBCPP_USING_IF_EXISTS;
+ using std::llrintl _LIBCPP_USING_IF_EXISTS;
- using std::round;
- using std::roundf;
- using std::roundl;
+ using std::round _LIBCPP_USING_IF_EXISTS;
+ using std::roundf _LIBCPP_USING_IF_EXISTS;
+ using std::roundl _LIBCPP_USING_IF_EXISTS;
- using std::lround;
- using std::lroundf;
- using std::lroundl;
+ using std::lround _LIBCPP_USING_IF_EXISTS;
+ using std::lroundf _LIBCPP_USING_IF_EXISTS;
+ using std::lroundl _LIBCPP_USING_IF_EXISTS;
- using std::llround;
- using std::llroundf;
- using std::llroundl;
+ using std::llround _LIBCPP_USING_IF_EXISTS;
+ using std::llroundf _LIBCPP_USING_IF_EXISTS;
+ using std::llroundl _LIBCPP_USING_IF_EXISTS;
- using std::trunc;
- using std::truncf;
- using std::truncl;
+ using std::trunc _LIBCPP_USING_IF_EXISTS;
+ using std::truncf _LIBCPP_USING_IF_EXISTS;
+ using std::truncl _LIBCPP_USING_IF_EXISTS;
- using std::fmod;
- using std::fmodf;
- using std::fmodl;
+ using std::fmod _LIBCPP_USING_IF_EXISTS;
+ using std::fmodf _LIBCPP_USING_IF_EXISTS;
+ using std::fmodl _LIBCPP_USING_IF_EXISTS;
- using std::remainder;
- using std::remainderf;
- using std::remainderl;
+ using std::remainder _LIBCPP_USING_IF_EXISTS;
+ using std::remainderf _LIBCPP_USING_IF_EXISTS;
+ using std::remainderl _LIBCPP_USING_IF_EXISTS;
- using std::remquo;
- using std::remquof;
- using std::remquol;
+ using std::remquo _LIBCPP_USING_IF_EXISTS;
+ using std::remquof _LIBCPP_USING_IF_EXISTS;
+ using std::remquol _LIBCPP_USING_IF_EXISTS;
- using std::copysign;
- using std::copysignf;
- using std::copysignl;
+ using std::copysign _LIBCPP_USING_IF_EXISTS;
+ using std::copysignf _LIBCPP_USING_IF_EXISTS;
+ using std::copysignl _LIBCPP_USING_IF_EXISTS;
- using std::nan;
- using std::nanf;
- using std::nanl;
+ using std::nan _LIBCPP_USING_IF_EXISTS;
+ using std::nanf _LIBCPP_USING_IF_EXISTS;
+ using std::nanl _LIBCPP_USING_IF_EXISTS;
- using std::nextafter;
- using std::nextafterf;
- using std::nextafterl;
+ using std::nextafter _LIBCPP_USING_IF_EXISTS;
+ using std::nextafterf _LIBCPP_USING_IF_EXISTS;
+ using std::nextafterl _LIBCPP_USING_IF_EXISTS;
- using std::nexttoward;
- using std::nexttowardf;
- using std::nexttowardl;
+ using std::nexttoward _LIBCPP_USING_IF_EXISTS;
+ using std::nexttowardf _LIBCPP_USING_IF_EXISTS;
+ using std::nexttowardl _LIBCPP_USING_IF_EXISTS;
- using std::fdim;
- using std::fdimf;
- using std::fdiml;
+ using std::fdim _LIBCPP_USING_IF_EXISTS;
+ using std::fdimf _LIBCPP_USING_IF_EXISTS;
+ using std::fdiml _LIBCPP_USING_IF_EXISTS;
- using std::fmax;
- using std::fmaxf;
- using std::fmaxl;
+ using std::fmax _LIBCPP_USING_IF_EXISTS;
+ using std::fmaxf _LIBCPP_USING_IF_EXISTS;
+ using std::fmaxl _LIBCPP_USING_IF_EXISTS;
- using std::fmin;
- using std::fminf;
- using std::fminl;
+ using std::fmin _LIBCPP_USING_IF_EXISTS;
+ using std::fminf _LIBCPP_USING_IF_EXISTS;
+ using std::fminl _LIBCPP_USING_IF_EXISTS;
- using std::fma;
- using std::fmaf;
- using std::fmal;
+ using std::fma _LIBCPP_USING_IF_EXISTS;
+ using std::fmaf _LIBCPP_USING_IF_EXISTS;
+ using std::fmal _LIBCPP_USING_IF_EXISTS;
// [c.math.lerp], linear interpolation
- using std::lerp;
+ using std::lerp _LIBCPP_USING_IF_EXISTS;
// [c.math.fpclass], classification / comparison functions
- using std::fpclassify;
- using std::isfinite;
- using std::isgreater;
- using std::isgreaterequal;
- using std::isinf;
- using std::isless;
- using std::islessequal;
- using std::islessgreater;
- using std::isnan;
- using std::isnormal;
- using std::isunordered;
- using std::signbit;
+ using std::fpclassify _LIBCPP_USING_IF_EXISTS;
+ using std::isfinite _LIBCPP_USING_IF_EXISTS;
+ using std::isgreater _LIBCPP_USING_IF_EXISTS;
+ using std::isgreaterequal _LIBCPP_USING_IF_EXISTS;
+ using std::isinf _LIBCPP_USING_IF_EXISTS;
+ using std::isless _LIBCPP_USING_IF_EXISTS;
+ using std::islessequal _LIBCPP_USING_IF_EXISTS;
+ using std::islessgreater _LIBCPP_USING_IF_EXISTS;
+ using std::isnan _LIBCPP_USING_IF_EXISTS;
+ using std::isnormal _LIBCPP_USING_IF_EXISTS;
+ using std::isunordered _LIBCPP_USING_IF_EXISTS;
+ using std::signbit _LIBCPP_USING_IF_EXISTS;
// [sf.cmath], mathematical special functions
#if 0
diff --git a/libcxx/modules/std/csetjmp.inc b/libcxx/modules/std/csetjmp.inc
index 68e226c8b7f1cc..8aa2e232929153 100644
--- a/libcxx/modules/std/csetjmp.inc
+++ b/libcxx/modules/std/csetjmp.inc
@@ -8,6 +8,6 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::jmp_buf;
- using std::longjmp;
+ using std::jmp_buf _LIBCPP_USING_IF_EXISTS;
+ using std::longjmp _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/csignal.inc b/libcxx/modules/std/csignal.inc
index b57e8edc6c0946..05f3986866c7be 100644
--- a/libcxx/modules/std/csignal.inc
+++ b/libcxx/modules/std/csignal.inc
@@ -8,11 +8,11 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::sig_atomic_t;
+ using std::sig_atomic_t _LIBCPP_USING_IF_EXISTS;
// [support.signal], signal handlers
- using std::signal;
+ using std::signal _LIBCPP_USING_IF_EXISTS;
- using std::raise;
+ using std::raise _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cstdarg.inc b/libcxx/modules/std/cstdarg.inc
index 2b7309c94ed268..5947bc2452b711 100644
--- a/libcxx/modules/std/cstdarg.inc
+++ b/libcxx/modules/std/cstdarg.inc
@@ -8,5 +8,5 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::va_list;
+ using std::va_list _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cstddef.inc b/libcxx/modules/std/cstddef.inc
index 2b9ab0c4707467..6443de89238239 100644
--- a/libcxx/modules/std/cstddef.inc
+++ b/libcxx/modules/std/cstddef.inc
@@ -8,10 +8,10 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::max_align_t;
+ using std::max_align_t _LIBCPP_USING_IF_EXISTS;
using std::nullptr_t;
- using std::ptrdiff_t;
- using std::size_t;
+ using std::ptrdiff_t _LIBCPP_USING_IF_EXISTS;
+ using std::size_t _LIBCPP_USING_IF_EXISTS;
using std::byte;
diff --git a/libcxx/modules/std/cstdint.inc b/libcxx/modules/std/cstdint.inc
index f6de4472218dac..f23b52a94526eb 100644
--- a/libcxx/modules/std/cstdint.inc
+++ b/libcxx/modules/std/cstdint.inc
@@ -14,17 +14,17 @@ export namespace std {
using std::int32_t _LIBCPP_USING_IF_EXISTS;
using std::int64_t _LIBCPP_USING_IF_EXISTS;
- using std::int_fast16_t;
- using std::int_fast32_t;
- using std::int_fast64_t;
- using std::int_fast8_t;
+ using std::int_fast16_t _LIBCPP_USING_IF_EXISTS;
+ using std::int_fast32_t _LIBCPP_USING_IF_EXISTS;
+ using std::int_fast64_t _LIBCPP_USING_IF_EXISTS;
+ using std::int_fast8_t _LIBCPP_USING_IF_EXISTS;
- using std::int_least16_t;
- using std::int_least32_t;
- using std::int_least64_t;
- using std::int_least8_t;
+ using std::int_least16_t _LIBCPP_USING_IF_EXISTS;
+ using std::int_least32_t _LIBCPP_USING_IF_EXISTS;
+ using std::int_least64_t _LIBCPP_USING_IF_EXISTS;
+ using std::int_least8_t _LIBCPP_USING_IF_EXISTS;
- using std::intmax_t;
+ using std::intmax_t _LIBCPP_USING_IF_EXISTS;
using std::intptr_t _LIBCPP_USING_IF_EXISTS;
@@ -34,17 +34,17 @@ export namespace std {
using std::uint32_t _LIBCPP_USING_IF_EXISTS;
using std::uint64_t _LIBCPP_USING_IF_EXISTS;
- using std::uint_fast16_t;
- using std::uint_fast32_t;
- using std::uint_fast64_t;
- using std::uint_fast8_t;
+ using std::uint_fast16_t _LIBCPP_USING_IF_EXISTS;
+ using std::uint_fast32_t _LIBCPP_USING_IF_EXISTS;
+ using std::uint_fast64_t _LIBCPP_USING_IF_EXISTS;
+ using std::uint_fast8_t _LIBCPP_USING_IF_EXISTS;
- using std::uint_least16_t;
- using std::uint_least32_t;
- using std::uint_least64_t;
- using std::uint_least8_t;
+ using std::uint_least16_t _LIBCPP_USING_IF_EXISTS;
+ using std::uint_least32_t _LIBCPP_USING_IF_EXISTS;
+ using std::uint_least64_t _LIBCPP_USING_IF_EXISTS;
+ using std::uint_least8_t _LIBCPP_USING_IF_EXISTS;
- using std::uintmax_t;
+ using std::uintmax_t _LIBCPP_USING_IF_EXISTS;
using std::uintptr_t _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cstdio.inc b/libcxx/modules/std/cstdio.inc
index eec8170e079175..62fa2f566a5f62 100644
--- a/libcxx/modules/std/cstdio.inc
+++ b/libcxx/modules/std/cstdio.inc
@@ -8,53 +8,53 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::FILE;
- using std::fpos_t;
- using std::size_t;
+ using std::FILE _LIBCPP_USING_IF_EXISTS;
+ using std::fpos_t _LIBCPP_USING_IF_EXISTS;
+ using std::size_t _LIBCPP_USING_IF_EXISTS;
- using std::clearerr;
- using std::fclose;
- using std::feof;
- using std::ferror;
- using std::fflush;
- using std::fgetc;
- using std::fgetpos;
- using std::fgets;
- using std::fopen;
- using std::fprintf;
- using std::fputc;
- using std::fputs;
- using std::fread;
- using std::freopen;
- using std::fscanf;
- using std::fseek;
- using std::fsetpos;
- using std::ftell;
- using std::fwrite;
- using std::getc;
- using std::getchar;
- using std::perror;
- using std::printf;
- using std::putc;
- using std::putchar;
- using std::puts;
- using std::remove;
- using std::rename;
- using std::rewind;
- using std::scanf;
- using std::setbuf;
- using std::setvbuf;
- using std::snprintf;
- using std::sprintf;
- using std::sscanf;
- using std::tmpfile;
- using std::tmpnam;
- using std::ungetc;
- using std::vfprintf;
- using std::vfscanf;
- using std::vprintf;
- using std::vscanf;
- using std::vsnprintf;
- using std::vsprintf;
- using std::vsscanf;
+ using std::clearerr _LIBCPP_USING_IF_EXISTS;
+ using std::fclose _LIBCPP_USING_IF_EXISTS;
+ using std::feof _LIBCPP_USING_IF_EXISTS;
+ using std::ferror _LIBCPP_USING_IF_EXISTS;
+ using std::fflush _LIBCPP_USING_IF_EXISTS;
+ using std::fgetc _LIBCPP_USING_IF_EXISTS;
+ using std::fgetpos _LIBCPP_USING_IF_EXISTS;
+ using std::fgets _LIBCPP_USING_IF_EXISTS;
+ using std::fopen _LIBCPP_USING_IF_EXISTS;
+ using std::fprintf _LIBCPP_USING_IF_EXISTS;
+ using std::fputc _LIBCPP_USING_IF_EXISTS;
+ using std::fputs _LIBCPP_USING_IF_EXISTS;
+ using std::fread _LIBCPP_USING_IF_EXISTS;
+ using std::freopen _LIBCPP_USING_IF_EXISTS;
+ using std::fscanf _LIBCPP_USING_IF_EXISTS;
+ using std::fseek _LIBCPP_USING_IF_EXISTS;
+ using std::fsetpos _LIBCPP_USING_IF_EXISTS;
+ using std::ftell _LIBCPP_USING_IF_EXISTS;
+ using std::fwrite _LIBCPP_USING_IF_EXISTS;
+ using std::getc _LIBCPP_USING_IF_EXISTS;
+ using std::getchar _LIBCPP_USING_IF_EXISTS;
+ using std::perror _LIBCPP_USING_IF_EXISTS;
+ using std::printf _LIBCPP_USING_IF_EXISTS;
+ using std::putc _LIBCPP_USING_IF_EXISTS;
+ using std::putchar _LIBCPP_USING_IF_EXISTS;
+ using std::puts _LIBCPP_USING_IF_EXISTS;
+ using std::remove _LIBCPP_USING_IF_EXISTS;
+ using std::rename _LIBCPP_USING_IF_EXISTS;
+ using std::rewind _LIBCPP_USING_IF_EXISTS;
+ using std::scanf _LIBCPP_USING_IF_EXISTS;
+ using std::setbuf _LIBCPP_USING_IF_EXISTS;
+ using std::setvbuf _LIBCPP_USING_IF_EXISTS;
+ using std::snprintf _LIBCPP_USING_IF_EXISTS;
+ using std::sprintf _LIBCPP_USING_IF_EXISTS;
+ using std::sscanf _LIBCPP_USING_IF_EXISTS;
+ using std::tmpfile _LIBCPP_USING_IF_EXISTS;
+ using std::tmpnam _LIBCPP_USING_IF_EXISTS;
+ using std::ungetc _LIBCPP_USING_IF_EXISTS;
+ using std::vfprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vfscanf _LIBCPP_USING_IF_EXISTS;
+ using std::vprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vscanf _LIBCPP_USING_IF_EXISTS;
+ using std::vsnprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vsprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vsscanf _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cstdlib.inc b/libcxx/modules/std/cstdlib.inc
index 8840c61367c30c..617cf3ff3ef6b7 100644
--- a/libcxx/modules/std/cstdlib.inc
+++ b/libcxx/modules/std/cstdlib.inc
@@ -8,64 +8,64 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::div_t;
- using std::ldiv_t;
- using std::lldiv_t;
- using std::size_t;
+ using std::div_t _LIBCPP_USING_IF_EXISTS;
+ using std::ldiv_t _LIBCPP_USING_IF_EXISTS;
+ using std::lldiv_t _LIBCPP_USING_IF_EXISTS;
+ using std::size_t _LIBCPP_USING_IF_EXISTS;
// [support.start.term], start and termination
- using std::_Exit;
- using std::abort;
- using std::at_quick_exit;
- using std::atexit;
- using std::exit;
- using std::quick_exit;
+ using std::_Exit _LIBCPP_USING_IF_EXISTS;
+ using std::abort _LIBCPP_USING_IF_EXISTS;
+ using std::at_quick_exit _LIBCPP_USING_IF_EXISTS;
+ using std::atexit _LIBCPP_USING_IF_EXISTS;
+ using std::exit _LIBCPP_USING_IF_EXISTS;
+ using std::quick_exit _LIBCPP_USING_IF_EXISTS;
- using std::getenv;
- using std::system;
+ using std::getenv _LIBCPP_USING_IF_EXISTS;
+ using std::system _LIBCPP_USING_IF_EXISTS;
// [c.malloc], C library memory allocation
- using std::aligned_alloc;
- using std::calloc;
- using std::free;
- using std::malloc;
- using std::realloc;
+ using std::aligned_alloc _LIBCPP_USING_IF_EXISTS;
+ using std::calloc _LIBCPP_USING_IF_EXISTS;
+ using std::free _LIBCPP_USING_IF_EXISTS;
+ using std::malloc _LIBCPP_USING_IF_EXISTS;
+ using std::realloc _LIBCPP_USING_IF_EXISTS;
- using std::atof;
- using std::atoi;
- using std::atol;
- using std::atoll;
- using std::strtod;
- using std::strtof;
- using std::strtol;
- using std::strtold;
- using std::strtoll;
- using std::strtoul;
- using std::strtoull;
+ using std::atof _LIBCPP_USING_IF_EXISTS;
+ using std::atoi _LIBCPP_USING_IF_EXISTS;
+ using std::atol _LIBCPP_USING_IF_EXISTS;
+ using std::atoll _LIBCPP_USING_IF_EXISTS;
+ using std::strtod _LIBCPP_USING_IF_EXISTS;
+ using std::strtof _LIBCPP_USING_IF_EXISTS;
+ using std::strtol _LIBCPP_USING_IF_EXISTS;
+ using std::strtold _LIBCPP_USING_IF_EXISTS;
+ using std::strtoll _LIBCPP_USING_IF_EXISTS;
+ using std::strtoul _LIBCPP_USING_IF_EXISTS;
+ using std::strtoull _LIBCPP_USING_IF_EXISTS;
// [c.mb.wcs], multibyte / wide string and character conversion functions
- using std::mblen;
+ using std::mblen _LIBCPP_USING_IF_EXISTS;
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using std::mbstowcs;
- using std::mbtowc;
- using std::wcstombs;
- using std::wctomb;
+ using std::mbstowcs _LIBCPP_USING_IF_EXISTS;
+ using std::mbtowc _LIBCPP_USING_IF_EXISTS;
+ using std::wcstombs _LIBCPP_USING_IF_EXISTS;
+ using std::wctomb _LIBCPP_USING_IF_EXISTS;
#endif
// [alg.c.library], C standard library algorithms
- using std::bsearch;
- using std::qsort;
+ using std::bsearch _LIBCPP_USING_IF_EXISTS;
+ using std::qsort _LIBCPP_USING_IF_EXISTS;
// [c.math.rand], low-quality random number generation
- using std::rand;
- using std::srand;
+ using std::rand _LIBCPP_USING_IF_EXISTS;
+ using std::srand _LIBCPP_USING_IF_EXISTS;
// [c.math.abs], absolute values
- using std::abs;
+ using std::abs _LIBCPP_USING_IF_EXISTS;
- using std::labs;
- using std::llabs;
+ using std::labs _LIBCPP_USING_IF_EXISTS;
+ using std::llabs _LIBCPP_USING_IF_EXISTS;
- using std::div;
- using std::ldiv;
- using std::lldiv;
+ using std::div _LIBCPP_USING_IF_EXISTS;
+ using std::ldiv _LIBCPP_USING_IF_EXISTS;
+ using std::lldiv _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cstring.inc b/libcxx/modules/std/cstring.inc
index d21714b787c812..9ad33b982b32af 100644
--- a/libcxx/modules/std/cstring.inc
+++ b/libcxx/modules/std/cstring.inc
@@ -8,28 +8,28 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::size_t;
+ using std::size_t _LIBCPP_USING_IF_EXISTS;
- using std::memchr;
- using std::memcmp;
- using std::memcpy;
- using std::memmove;
- using std::memset;
- using std::strcat;
- using std::strchr;
- using std::strcmp;
- using std::strcoll;
- using std::strcpy;
- using std::strcspn;
- using std::strerror;
- using std::strlen;
- using std::strncat;
- using std::strncmp;
- using std::strncpy;
- using std::strpbrk;
- using std::strrchr;
- using std::strspn;
- using std::strstr;
- using std::strtok;
- using std::strxfrm;
+ using std::memchr _LIBCPP_USING_IF_EXISTS;
+ using std::memcmp _LIBCPP_USING_IF_EXISTS;
+ using std::memcpy _LIBCPP_USING_IF_EXISTS;
+ using std::memmove _LIBCPP_USING_IF_EXISTS;
+ using std::memset _LIBCPP_USING_IF_EXISTS;
+ using std::strcat _LIBCPP_USING_IF_EXISTS;
+ using std::strchr _LIBCPP_USING_IF_EXISTS;
+ using std::strcmp _LIBCPP_USING_IF_EXISTS;
+ using std::strcoll _LIBCPP_USING_IF_EXISTS;
+ using std::strcpy _LIBCPP_USING_IF_EXISTS;
+ using std::strcspn _LIBCPP_USING_IF_EXISTS;
+ using std::strerror _LIBCPP_USING_IF_EXISTS;
+ using std::strlen _LIBCPP_USING_IF_EXISTS;
+ using std::strncat _LIBCPP_USING_IF_EXISTS;
+ using std::strncmp _LIBCPP_USING_IF_EXISTS;
+ using std::strncpy _LIBCPP_USING_IF_EXISTS;
+ using std::strpbrk _LIBCPP_USING_IF_EXISTS;
+ using std::strrchr _LIBCPP_USING_IF_EXISTS;
+ using std::strspn _LIBCPP_USING_IF_EXISTS;
+ using std::strstr _LIBCPP_USING_IF_EXISTS;
+ using std::strtok _LIBCPP_USING_IF_EXISTS;
+ using std::strxfrm _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/ctime.inc b/libcxx/modules/std/ctime.inc
index c98cb28e649b85..5bfa61917e5f20 100644
--- a/libcxx/modules/std/ctime.inc
+++ b/libcxx/modules/std/ctime.inc
@@ -8,21 +8,21 @@
//===----------------------------------------------------------------------===//
export namespace std {
- using std::clock_t;
- using std::size_t;
- using std::time_t;
+ using std::clock_t _LIBCPP_USING_IF_EXISTS;
+ using std::size_t _LIBCPP_USING_IF_EXISTS;
+ using std::time_t _LIBCPP_USING_IF_EXISTS;
- using std::timespec;
- using std::tm;
+ using std::timespec _LIBCPP_USING_IF_EXISTS;
+ using std::tm _LIBCPP_USING_IF_EXISTS;
- using std::asctime;
- using std::clock;
- using std::ctime;
- using std::difftime;
- using std::gmtime;
- using std::localtime;
- using std::mktime;
- using std::strftime;
- using std::time;
+ using std::asctime _LIBCPP_USING_IF_EXISTS;
+ using std::clock _LIBCPP_USING_IF_EXISTS;
+ using std::ctime _LIBCPP_USING_IF_EXISTS;
+ using std::difftime _LIBCPP_USING_IF_EXISTS;
+ using std::gmtime _LIBCPP_USING_IF_EXISTS;
+ using std::localtime _LIBCPP_USING_IF_EXISTS;
+ using std::mktime _LIBCPP_USING_IF_EXISTS;
+ using std::strftime _LIBCPP_USING_IF_EXISTS;
+ using std::time _LIBCPP_USING_IF_EXISTS;
using std::timespec_get _LIBCPP_USING_IF_EXISTS;
} // namespace std
diff --git a/libcxx/modules/std/cwchar.inc b/libcxx/modules/std/cwchar.inc
index 6818c46b48ef31..02b1713359b6aa 100644
--- a/libcxx/modules/std/cwchar.inc
+++ b/libcxx/modules/std/cwchar.inc
@@ -9,72 +9,72 @@
export namespace std {
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using std::mbstate_t;
- using std::size_t;
- using std::wint_t;
+ using std::mbstate_t _LIBCPP_USING_IF_EXISTS;
+ using std::size_t _LIBCPP_USING_IF_EXISTS;
+ using std::wint_t _LIBCPP_USING_IF_EXISTS;
- using std::tm;
+ using std::tm _LIBCPP_USING_IF_EXISTS;
- using std::btowc;
- using std::fgetwc;
- using std::fgetws;
- using std::fputwc;
- using std::fputws;
- using std::fwide;
- using std::fwprintf;
- using std::fwscanf;
- using std::getwc;
- using std::getwchar;
- using std::putwc;
- using std::putwchar;
- using std::swprintf;
- using std::swscanf;
- using std::ungetwc;
- using std::vfwprintf;
- using std::vfwscanf;
- using std::vswprintf;
- using std::vswscanf;
- using std::vwprintf;
- using std::vwscanf;
- using std::wcscat;
- using std::wcschr;
- using std::wcscmp;
- using std::wcscoll;
- using std::wcscpy;
- using std::wcscspn;
- using std::wcsftime;
- using std::wcslen;
- using std::wcsncat;
- using std::wcsncmp;
- using std::wcsncpy;
- using std::wcspbrk;
- using std::wcsrchr;
- using std::wcsspn;
- using std::wcsstr;
- using std::wcstod;
- using std::wcstof;
- using std::wcstok;
- using std::wcstol;
- using std::wcstold;
- using std::wcstoll;
- using std::wcstoul;
- using std::wcstoull;
- using std::wcsxfrm;
- using std::wctob;
- using std::wmemchr;
- using std::wmemcmp;
- using std::wmemcpy;
- using std::wmemmove;
- using std::wmemset;
- using std::wprintf;
- using std::wscanf;
+ using std::btowc _LIBCPP_USING_IF_EXISTS;
+ using std::fgetwc _LIBCPP_USING_IF_EXISTS;
+ using std::fgetws _LIBCPP_USING_IF_EXISTS;
+ using std::fputwc _LIBCPP_USING_IF_EXISTS;
+ using std::fputws _LIBCPP_USING_IF_EXISTS;
+ using std::fwide _LIBCPP_USING_IF_EXISTS;
+ using std::fwprintf _LIBCPP_USING_IF_EXISTS;
+ using std::fwscanf _LIBCPP_USING_IF_EXISTS;
+ using std::getwc _LIBCPP_USING_IF_EXISTS;
+ using std::getwchar _LIBCPP_USING_IF_EXISTS;
+ using std::putwc _LIBCPP_USING_IF_EXISTS;
+ using std::putwchar _LIBCPP_USING_IF_EXISTS;
+ using std::swprintf _LIBCPP_USING_IF_EXISTS;
+ using std::swscanf _LIBCPP_USING_IF_EXISTS;
+ using std::ungetwc _LIBCPP_USING_IF_EXISTS;
+ using std::vfwprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vfwscanf _LIBCPP_USING_IF_EXISTS;
+ using std::vswprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vswscanf _LIBCPP_USING_IF_EXISTS;
+ using std::vwprintf _LIBCPP_USING_IF_EXISTS;
+ using std::vwscanf _LIBCPP_USING_IF_EXISTS;
+ using std::wcscat _LIBCPP_USING_IF_EXISTS;
+ using std::wcschr _LIBCPP_USING_IF_EXISTS;
+ using std::wcscmp _LIBCPP_USING_IF_EXISTS;
+ using std::wcscoll _LIBCPP_USING_IF_EXISTS;
+ using std::wcscpy _LIBCPP_USING_IF_EXISTS;
+ using std::wcscspn _LIBCPP_USING_IF_EXISTS;
+ using std::wcsftime _LIBCPP_USING_IF_EXISTS;
+ using std::wcslen _LIBCPP_USING_IF_EXISTS;
+ using std::wcsncat _LIBCPP_USING_IF_EXISTS;
+ using std::wcsncmp _LIBCPP_USING_IF_EXISTS;
+ using std::wcsncpy _LIBCPP_USING_IF_EXISTS;
+ using std::wcspbrk _LIBCPP_USING_IF_EXISTS;
+ using std::wcsrchr _LIBCPP_USING_IF_EXISTS;
+ using std::wcsspn _LIBCPP_USING_IF_EXISTS;
+ using std::wcsstr _LIBCPP_USING_IF_EXISTS;
+ using std::wcstod _LIBCPP_USING_IF_EXISTS;
+ using std::wcstof _LIBCPP_USING_IF_EXISTS;
+ using std::wcstok _LIBCPP_USING_IF_EXISTS;
+ using std::wcstol _LIBCPP_USING_IF_EXISTS;
+ using std::wcstold _LIBCPP_USING_IF_EXISTS;
+ using std::wcstoll _LIBCPP_USING_IF_EXISTS;
+ using std::wcstoul _LIBCPP_USING_IF_EXISTS;
+ using std::wcstoull _LIBCPP_USING_IF_EXISTS;
+ using std::wcsxfrm _LIBCPP_USING_IF_EXISTS;
+ using std::wctob _LIBCPP_USING_IF_EXISTS;
+ using std::wmemchr _LIBCPP_USING_IF_EXISTS;
+ using std::wmemcmp _LIBCPP_USING_IF_EXISTS;
+ using std::wmemcpy _LIBCPP_USING_IF_EXISTS;
+ using std::wmemmove _LIBCPP_USING_IF_EXISTS;
+ using std::wmemset _LIBCPP_USING_IF_EXISTS;
+ using std::wprintf _LIBCPP_USING_IF_EXISTS;
+ using std::wscanf _LIBCPP_USING_IF_EXISTS;
// [c.mb.wcs], multibyte / wide string and character conversion functions
- using std::mbrlen;
- using std::mbrtowc;
- using std::mbsinit;
- using std::mbsrtowcs;
- using std::wcrtomb;
- using std::wcsrtombs;
+ using std::mbrlen _LIBCPP_USING_IF_EXISTS;
+ using std::mbrtowc _LIBCPP_USING_IF_EXISTS;
+ using std::mbsinit _LIBCPP_USING_IF_EXISTS;
+ using std::mbsrtowcs _LIBCPP_USING_IF_EXISTS;
+ using std::wcrtomb _LIBCPP_USING_IF_EXISTS;
+ using std::wcsrtombs _LIBCPP_USING_IF_EXISTS;
#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
} // namespace std
diff --git a/libcxx/modules/std/cwctype.inc b/libcxx/modules/std/cwctype.inc
index 70e6cf3f113374..9e370a4b8a89f8 100644
--- a/libcxx/modules/std/cwctype.inc
+++ b/libcxx/modules/std/cwctype.inc
@@ -9,27 +9,27 @@
export namespace std {
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
- using std::wctrans_t;
- using std::wctype_t;
- using std::wint_t;
+ using std::wctrans_t _LIBCPP_USING_IF_EXISTS;
+ using std::wctype_t _LIBCPP_USING_IF_EXISTS;
+ using std::wint_t _LIBCPP_USING_IF_EXISTS;
- using std::iswalnum;
- using std::iswalpha;
- using std::iswblank;
- using std::iswcntrl;
- using std::iswctype;
- using std::iswdigit;
- using std::iswgraph;
- using std::iswlower;
- using std::iswprint;
- using std::iswpunct;
- using std::iswspace;
- using std::iswupper;
- using std::iswxdigit;
- using std::towctrans;
- using std::towlower;
- using std::towupper;
- using std::wctrans;
- using std::wctype;
+ using std::iswalnum _LIBCPP_USING_IF_EXISTS;
+ using std::iswalpha _LIBCPP_USING_IF_EXISTS;
+ using std::iswblank _LIBCPP_USING_IF_EXISTS;
+ using std::iswcntrl _LIBCPP_USING_IF_EXISTS;
+ using std::iswctype _LIBCPP_USING_IF_EXISTS;
+ using std::iswdigit _LIBCPP_USING_IF_EXISTS;
+ using std::iswgraph _LIBCPP_USING_IF_EXISTS;
+ using std::iswlower _LIBCPP_USING_IF_EXISTS;
+ using std::iswprint _LIBCPP_USING_IF_EXISTS;
+ using std::iswpunct _LIBCPP_USING_IF_EXISTS;
+ using std::iswspace _LIBCPP_USING_IF_EXISTS;
+ using std::iswupper _LIBCPP_USING_IF_EXISTS;
+ using std::iswxdigit _LIBCPP_USING_IF_EXISTS;
+ using std::towctrans _LIBCPP_USING_IF_EXISTS;
+ using std::towlower _LIBCPP_USING_IF_EXISTS;
+ using std::towupper _LIBCPP_USING_IF_EXISTS;
+ using std::wctrans _LIBCPP_USING_IF_EXISTS;
+ esing std::wctype _LIBCPP_USING_IF_EXISTS;
#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
} // namespace std
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