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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <complex>
     11 
     12 // template<class T>
     13 //   bool
     14 //   operator!=(const complex<T>& lhs, const T& rhs);
     15 
     16 #include <complex>
     17 #include <cassert>
     18 
     19 template <class T>
     20 void
     21 test_constexpr()
     22 {
     23 #if _LIBCPP_STD_VER > 11
     24     {
     25     constexpr std::complex<T> lhs(1.5,  2.5);
     26     constexpr T rhs(-2.5);
     27     static_assert(lhs != rhs, "");
     28     }
     29     {
     30     constexpr std::complex<T> lhs(1.5,  0);
     31     constexpr T rhs(-2.5);
     32     static_assert(lhs != rhs, "");
     33     }
     34     {
     35     constexpr std::complex<T> lhs(1.5, 2.5);
     36     constexpr T rhs(1.5);
     37     static_assert(lhs != rhs, "");
     38     }
     39     {
     40     constexpr std::complex<T> lhs(1.5, 0);
     41     constexpr T rhs(1.5);
     42     static_assert( !(lhs != rhs), "");
     43     }
     44 #endif
     45 }
     46 
     47 template <class T>
     48 void
     49 test()
     50 {
     51     {
     52     std::complex<T> lhs(1.5,  2.5);
     53     T rhs(-2.5);
     54     assert(lhs != rhs);
     55     }
     56     {
     57     std::complex<T> lhs(1.5,  0);
     58     T rhs(-2.5);
     59     assert(lhs != rhs);
     60     }
     61     {
     62     std::complex<T> lhs(1.5, 2.5);
     63     T rhs(1.5);
     64     assert(lhs != rhs);
     65     }
     66     {
     67     std::complex<T> lhs(1.5, 0);
     68     T rhs(1.5);
     69     assert( !(lhs != rhs));
     70     }
     71 
     72     test_constexpr<T> ();
     73 }
     74 
     75 int main()
     76 {
     77     test<float>();
     78     test<double>();
     79     test<long double>();
     80 //     test_constexpr<int> ();
     81     }
     82