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[libc++][C++03] cherry-pick #104773 #158244

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Merged
merged 1 commit into from
Sep 25, 2025
Merged

[libc++][C++03] cherry-pick #104773 #158244

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13 changes: 8 additions & 5 deletions libcxx/include/__cxx03/__math/traits.h
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Original file line number Diff line number Diff line change
Expand Up @@ -109,16 +109,19 @@ _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI bool isnan(long double __x) _NOEX

// isnormal

template <class _A1, __enable_if_t<is_floating_point<_A1>::value, int> = 0>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool isnormal(_A1 __x) _NOEXCEPT {
return __builtin_isnormal(__x);
}

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool isnormal(_A1 __x) _NOEXCEPT {
return __x != 0;
}

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI bool isnormal(float __x) _NOEXCEPT { return __builtin_isnormal(__x); }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI bool isnormal(double __x) _NOEXCEPT { return __builtin_isnormal(__x); }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI bool isnormal(long double __x) _NOEXCEPT {
return __builtin_isnormal(__x);
}

// isgreater

template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
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2 changes: 0 additions & 2 deletions libcxx/test/std/numerics/c.math/isnormal.pass.cpp
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Expand Up @@ -11,8 +11,6 @@
// We don't control the implementation on windows
// UNSUPPORTED: windows

// XFAIL: FROZEN-CXX03-HEADERS-FIXME

#include <cassert>
#include <cmath>
#include <limits>
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