test/std/language.support/support.limits/limits/numeric.limits.members/min_exponent.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// test numeric_limits

// min_exponent

#include <limits>
#include <cfloat>

#include "test_macros.h"

template <class T, int expected>
void
test()
{
    static_assert(std::numeric_limits<T>::min_exponent == expected, "min_exponent test 1");
    static_assert(std::numeric_limits<const T>::min_exponent == expected, "min_exponent test 2");
    static_assert(std::numeric_limits<volatile T>::min_exponent == expected, "min_exponent test 3");
    static_assert(std::numeric_limits<const volatile T>::min_exponent == expected, "min_exponent test 4");
}

int main(int, char**)
{
    test<bool, 0>();
    test<char, 0>();
    test<signed char, 0>();
    test<unsigned char, 0>();
    test<wchar_t, 0>();
#if TEST_STD_VER > 17 && defined(__cpp_char8_t)
    test<char8_t, 0>();
#endif
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
    test<char16_t, 0>();
    test<char32_t, 0>();
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
    test<short, 0>();
    test<unsigned short, 0>();
    test<int, 0>();
    test<unsigned int, 0>();
    test<long, 0>();
    test<unsigned long, 0>();
    test<long long, 0>();
    test<unsigned long long, 0>();
#ifndef _LIBCPP_HAS_NO_INT128
    test<__int128_t, 0>();
    test<__uint128_t, 0>();
#endif
    test<float, FLT_MIN_EXP>();
    test<double, DBL_MIN_EXP>();
    test<long double, LDBL_MIN_EXP>();

  return 0;
}