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// void real(T val); 13// void imag(T val); 14 15#include <complex> 16#include <cassert> 17 18template <class T> 19void 20test_constexpr() 21{ 22#if _LIBCPP_STD_VER > 11 23 constexpr std::complex<T> c1; 24 static_assert(c1.real() == 0, ""); 25 static_assert(c1.imag() == 0, ""); 26 constexpr std::complex<T> c2(3); 27 static_assert(c2.real() == 3, ""); 28 static_assert(c2.imag() == 0, ""); 29 constexpr std::complex<T> c3(3, 4); 30 static_assert(c3.real() == 3, ""); 31 static_assert(c3.imag() == 4, ""); 32#endif 33} 34 35template <class T> 36void 37test() 38{ 39 std::complex<T> c; 40 assert(c.real() == 0); 41 assert(c.imag() == 0); 42 c.real(3.5); 43 assert(c.real() == 3.5); 44 assert(c.imag() == 0); 45 c.imag(4.5); 46 assert(c.real() == 3.5); 47 assert(c.imag() == 4.5); 48 c.real(-4.5); 49 assert(c.real() == -4.5); 50 assert(c.imag() == 4.5); 51 c.imag(-5.5); 52 assert(c.real() == -4.5); 53 assert(c.imag() == -5.5); 54 55 test_constexpr<T> (); 56} 57 58int main() 59{ 60 test<float>(); 61 test<double>(); 62 test<long double>(); 63 test_constexpr<int> (); 64} 65