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 complex<double>
13 // {
14 // public:
15 //     explicit constexpr complex(const complex<long double>&);
16 // };
17 
18 #include <complex>
19 #include <cassert>
20 
21 int main()
22 {
23     const std::complex<long double> cd(2.5, 3.5);
24     std::complex<double> cf = cd;
25     assert(cf.real() == cd.real());
26     assert(cf.imag() == cd.imag());
27 }
28