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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 complex<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 std::complex<T> rhs(1.5, -2.5);
     27     static_assert(lhs != rhs, "");
     28     }
     29     {
     30     constexpr std::complex<T> lhs(1.5, 2.5);
     31     constexpr std::complex<T> rhs(1.5, 2.5);
     32     static_assert(!(lhs != rhs), "" );
     33     }
     34 #endif
     35 }
     36 
     37 
     38 template <class T>
     39 void
     40 test()
     41 {
     42     {
     43     std::complex<T> lhs(1.5,  2.5);
     44     std::complex<T> rhs(1.5, -2.5);
     45     assert(lhs != rhs);
     46     }
     47     {
     48     std::complex<T> lhs(1.5, 2.5);
     49     std::complex<T> rhs(1.5, 2.5);
     50     assert(!(lhs != rhs));
     51     }
     52 
     53     test_constexpr<T> ();
     54     }
     55 
     56 int main()
     57 {
     58     test<float>();
     59     test<double>();
     60     test<long double>();
     61 //   test_constexpr<int> ();
     62 }
     63