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 // void real(T val);
12 // void imag(T val);
13
14 #include <complex>
15 #include <cassert>
16
17 #include "test_macros.h"
18
19 template <class T>
20 void
test_constexpr()21 test_constexpr()
22 {
23 #if TEST_STD_VER > 11
24 constexpr std::complex<T> c1;
25 static_assert(c1.real() == 0, "");
26 static_assert(c1.imag() == 0, "");
27 constexpr std::complex<T> c2(3);
28 static_assert(c2.real() == 3, "");
29 static_assert(c2.imag() == 0, "");
30 constexpr std::complex<T> c3(3, 4);
31 static_assert(c3.real() == 3, "");
32 static_assert(c3.imag() == 4, "");
33 #endif
34 }
35
36 template <class T>
37 void
test()38 test()
39 {
40 std::complex<T> c;
41 assert(c.real() == 0);
42 assert(c.imag() == 0);
43 c.real(3.5);
44 assert(c.real() == 3.5);
45 assert(c.imag() == 0);
46 c.imag(4.5);
47 assert(c.real() == 3.5);
48 assert(c.imag() == 4.5);
49 c.real(-4.5);
50 assert(c.real() == -4.5);
51 assert(c.imag() == 4.5);
52 c.imag(-5.5);
53 assert(c.real() == -4.5);
54 assert(c.imag() == -5.5);
55
56 test_constexpr<T> ();
57 }
58
main(int,char **)59 int main(int, char**)
60 {
61 test<float>();
62 test<double>();
63 test<long double>();
64 test_constexpr<int> ();
65
66 return 0;
67 }
68