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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <complex>
// void real(T val); // constexpr in C++20
// void imag(T val); // constexpr in C++20
#include <complex>
#include <cassert>
#include "test_macros.h"
template <class T>
TEST_CONSTEXPR_CXX20
void
test_constexpr()
{
#if TEST_STD_VER > 11
constexpr std::complex<T> c1;
static_assert(c1.real() == 0, "");
static_assert(c1.imag() == 0, "");
constexpr std::complex<T> c2(3);
static_assert(c2.real() == 3, "");
static_assert(c2.imag() == 0, "");
constexpr std::complex<T> c3(3, 4);
static_assert(c3.real() == 3, "");
static_assert(c3.imag() == 4, "");
#endif
}
template <class T>
TEST_CONSTEXPR_CXX20
bool
test()
{
std::complex<T> c;
assert(c.real() == 0);
assert(c.imag() == 0);
c.real(3.5);
assert(c.real() == 3.5);
assert(c.imag() == 0);
c.imag(4.5);
assert(c.real() == 3.5);
assert(c.imag() == 4.5);
c.real(-4.5);
assert(c.real() == -4.5);
assert(c.imag() == 4.5);
c.imag(-5.5);
assert(c.real() == -4.5);
assert(c.imag() == -5.5);
test_constexpr<T>();
return true;
}
int main(int, char**) {
test<float>();
test<double>();
test<long double>();
test_constexpr<int>();
#if TEST_STD_VER >= 20
static_assert(test<float>());
static_assert(test<double>());
static_assert(test<long double>());
#endif
return 0;
}
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