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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 template <class T>
     38 void
     39 test()
     40 {
     41     {
     42     std::complex<T> lhs(1.5,  2.5);
     43     std::complex<T> rhs(1.5, -2.5);
     44     assert( !(lhs == rhs));
     45     }
     46     {
     47     std::complex<T> lhs(1.5, 2.5);
     48     std::complex<T> rhs(1.5, 2.5);
     49     assert(lhs == rhs);
     50     }
     51     test_constexpr<T> ();
     52 }
     53 
     54 int main()
     55 {
     56     test<float>();
     57     test<double>();
     58     test<long double>();
     59 //    test_constexpr<int> ();
     60 }
     61