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// complex& operator= (const T&); // constexpr in C++20
12
13#include <complex>
14#include <cassert>
15
16#include "test_macros.h"
17
18template <class T>
19TEST_CONSTEXPR_CXX20
20bool
21test()
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 >= 20
42 static_assert(test<float>());
43 static_assert(test<double>());
44 static_assert(test<long double>());
45#endif
46
47 return 0;
48}
49

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