29 lines · 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-exception6//7//===----------------------------------------------------------------------===//8 9// <complex>10 11// template<> class complex<double>12// {13// public:14// explicit constexpr complex(const complex<long double>&);15// };16 17#include <complex>18#include <cassert>19 20int main(int, char**)21{22 const std::complex<long double> cd(2.5, 3.5);23 std::complex<double> cf = cd;24 assert(cf.real() == cd.real());25 assert(cf.imag() == cd.imag());26 27 return 0;28}29