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 complex& rhs); // constexpr in C++20
12
13 #include <cassert>
14 #include <complex>
15
16 #include "floating_pointer_helpers.h"
17 #include "test_macros.h"
18
19 template <class T>
20 TEST_CONSTEXPR_CXX20
21 bool
test()22 test()
23 {
24 std::complex<T> c(-4, 7.5);
25 const std::complex<T> c2(1.5, 2.5);
26 assert(is_close(c.real(), T(-4)));
27 assert(is_close(c.imag(), T(7.5)));
28 c /= c2;
29 assert(is_close(c.real(), T(1.5)));
30 assert(is_close(c.imag(), T(2.5)));
31 c /= c2;
32 assert(is_close(c.real(), T(1)));
33 assert(is_close(c.imag(), T(0)));
34
35 std::complex<T> c3;
36
37 c3 = c;
38 std::complex<int> ic (1,1);
39 c3 /= ic;
40 assert(is_close(c3.real(), T(0.5)));
41 assert(is_close(c3.imag(), T(-0.5)));
42
43 c3 = c;
44 std::complex<float> fc (1,1);
45 c3 /= fc;
46 assert(is_close(c3.real(), T(0.5)));
47 assert(is_close(c3.imag(), T(-0.5)));
48 return true;
49 }
50
main(int,char **)51 int main(int, char**)
52 {
53 test<float>();
54 test<double>();
55 test<long double>();
56
57 #if TEST_STD_VER >= 20
58 static_assert(test<float>());
59 static_assert(test<double>());
60 static_assert(test<long double>());
61 #endif
62
63 return 0;
64 }
65