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// template<class T>12// complex<T>13// operator-(const complex<T>& lhs, const complex<T>& rhs); // constexpr in C++2014 15#include <complex>16#include <cassert>17 18#include "test_macros.h"19 20template <class T>21TEST_CONSTEXPR_CXX2022bool23test()24{25 {26 const std::complex<T> lhs(1.5, 2.5);27 const std::complex<T> rhs(3.5, 4.5);28 assert(lhs - rhs == std::complex<T>(-2.0, -2.0));29 }30 {31 const std::complex<T> lhs(1.5, -2.5);32 const std::complex<T> rhs(-3.5, 4.5);33 assert(lhs - rhs == std::complex<T>(5.0, -7.0));34 }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 > 1745 static_assert(test<float>());46 static_assert(test<double>());47 static_assert(test<long double>());48#endif49 50 return 0;51}52