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& rhs);
12 
13 #include <complex>
14 #include <cassert>
15 
16 template <class T>
17 void
18 test()
19 {
20     std::complex<T> c;
21     assert(c.real() == 0);
22     assert(c.imag() == 0);
23     c += 1.5;
24     assert(c.real() == 1.5);
25     assert(c.imag() == 0);
26     c += 1.5;
27     assert(c.real() == 3);
28     assert(c.imag() == 0);
29     c += -1.5;
30     assert(c.real() == 1.5);
31     assert(c.imag() == 0);
32 }
33 
34 int main(int, char**)
35 {
36     test<float>();
37     test<double>();
38     test<long double>();
39 
40   return 0;
41 }
42