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-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <complex>
10
11// template<class T>
12// complex<T>
13// operator+(const T& lhs, const complex<T>& rhs); // constexpr in C++20
14
15#include <complex>
16#include <cassert>
17
18#include "test_macros.h"
19
20template <class T>
21TEST_CONSTEXPR_CXX20
22bool
23test()
24{
25 {
26 const T lhs(1.5);
27 const std::complex<T> rhs(3.5, 4.5);
28 assert(lhs + rhs == std::complex<T>(5.0, 4.5));
29 }
30 {
31 const T lhs(1.5);
32 const std::complex<T> rhs(-3.5, 4.5);
33 assert(lhs + rhs == std::complex<T>(-2.0, 4.5));
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 > 17
45 static_assert(test<float>());
46 static_assert(test<double>());
47 static_assert(test<long double>());
48#endif
49
50 return 0;
51}
52

source code of libcxx/test/std/numerics/complex.number/complex.ops/scalar_plus_complex.pass.cpp