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[libc++] Harden usage of static_assert against C++03

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In C++03, we emulate static_assert with a macro, and we must parenthesize
multiple arguments.

llvm-svn: 373328
This commit is contained in:
Louis Dionne 2019-10-01 12:12:21 +00:00
parent ed5a8971ec
commit 371ea70bb7
1 changed files with 2 additions and 2 deletions
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libcxx/include/cmath
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@ -644,8 +644,8 @@ _LIBCPP_CONSTEXPR _IntT __max_representable_int_for_float() _NOEXCEPT {
static_assert(is_floating_point<_FloatT>::value, "must be a floating point type");
static_assert(is_integral<_IntT>::value, "must be an integral type");
static_assert(numeric_limits<_FloatT>::radix == 2, "FloatT has incorrect radix");
static_assert(_IsSame<_FloatT, float>::value || _IsSame<_FloatT, double>::value
|| _IsSame<_FloatT,long double>::value, "unsupported floating point type");
static_assert((_IsSame<_FloatT, float>::value || _IsSame<_FloatT, double>::value
|| _IsSame<_FloatT,long double>::value), "unsupported floating point type");
return _FloatBigger ? numeric_limits<_IntT>::max() : (numeric_limits<_IntT>::max() >> _Bits << _Bits);
}