libcxx/test/std/numerics/complex.number/complex.ops/unary_minus.pass.cpp

   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 // template<class T>
  12 //   complex<T>
  13 //   operator-(const complex<T>& lhs);
  14
  15 #include <complex>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 template <class T>
  21 void
  22 test()
  23 {
  24     std::complex<T> z(1.5, 2.5);
  25     assert(z.real() == 1.5);
  26     assert(z.imag() == 2.5);
  27     std::complex<T> c = -z;
  28     assert(c.real() == -1.5);
  29     assert(c.imag() == -2.5);
  30 }
  31
  32 int main(int, char**)
  33 {
  34     test<float>();
  35     test<double>();
  36     test<long double>();
  37
  38   return 0;
  39 }