49 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <complex>10 11// complex& operator= (const T&); // constexpr in C++2012 13#include <complex>14#include <cassert>15 16#include "test_macros.h"17 18template <class T>19TEST_CONSTEXPR_CXX2020bool21test()22{23 std::complex<T> c;24 assert(c.real() == 0);25 assert(c.imag() == 0);26 c = 1.5;27 assert(c.real() == 1.5);28 assert(c.imag() == 0);29 c = -1.5;30 assert(c.real() == -1.5);31 assert(c.imag() == 0);32 return true;33}34 35int main(int, char**)36{37 test<float>();38 test<double>();39 test<long double>();40 41#if TEST_STD_VER >= 2042 static_assert(test<float>());43 static_assert(test<double>());44 static_assert(test<long double>());45#endif46 47 return 0;48}49