52 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& rhs); // 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() == 3);31 assert(c.imag() == 0);32 c += -1.5;33 assert(c.real() == 1.5);34 assert(c.imag() == 0);35 return true;36}37 38int main(int, char**)39{40 test<float>();41 test<double>();42 test<long double>();43 44#if TEST_STD_VER >= 2045 static_assert(test<float>());46 static_assert(test<double>());47 static_assert(test<long double>());48#endif49 50 return 0;51}52