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// constexpr complex(const T& re = T(), const T& im = T());
12
13#include <complex>
14#include <cassert>
15
16#include "test_macros.h"
17
18template <class T>
19void
20test()
21{
22 {
23 const std::complex<T> c;
24 assert(c.real() == 0);
25 assert(c.imag() == 0);
26 }
27 {
28 const std::complex<T> c = 7.5;
29 assert(c.real() == 7.5);
30 assert(c.imag() == 0);
31 }
32 {
33 const std::complex<T> c(8.5);
34 assert(c.real() == 8.5);
35 assert(c.imag() == 0);
36 }
37 {
38 const std::complex<T> c(10.5, -9.5);
39 assert(c.real() == 10.5);
40 assert(c.imag() == -9.5);
41 }
42#if TEST_STD_VER >= 11
43 {
44 constexpr std::complex<T> c;
45 static_assert(c.real() == 0, "");
46 static_assert(c.imag() == 0, "");
47 }
48 {
49 constexpr std::complex<T> c = 7.5;
50 static_assert(c.real() == 7.5, "");
51 static_assert(c.imag() == 0, "");
52 }
53 {
54 constexpr std::complex<T> c(8.5);
55 static_assert(c.real() == 8.5, "");
56 static_assert(c.imag() == 0, "");
57 }
58 {
59 constexpr std::complex<T> c(10.5, -9.5);
60 static_assert(c.real() == 10.5, "");
61 static_assert(c.imag() == -9.5, "");
62 }
63#endif
64}
65
66int main(int, char**)
67{
68 test<float>();
69 test<double>();
70 test<long double>();
71
72 return 0;
73}
74

source code of libcxx/test/std/numerics/complex.number/complex.members/construct.pass.cpp