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<Arithmetic T> 13 // T 14 // imag(const T& x); 15 16 #include <complex> 17 #include <type_traits> 18 #include <cassert> 19 20 #include "../cases.h" 21 22 template <class T> 23 void 24 test(T x, typename std::enable_if<std::is_integral<T>::value>::type* = 0) 25 { 26 static_assert((std::is_same<decltype(std::imag(x)), double>::value), ""); 27 assert(std::imag(x) == 0); 28 } 29 30 template <class T> 31 void 32 test(T x, typename std::enable_if<!std::is_integral<T>::value>::type* = 0) 33 { 34 static_assert((std::is_same<decltype(std::imag(x)), T>::value), ""); 35 assert(std::imag(x) == 0); 36 } 37 38 template <class T> 39 void 40 test() 41 { 42 test<T>(0); 43 test<T>(1); 44 test<T>(10); 45 } 46 47 int main() 48 { 49 test<float>(); 50 test<double>(); 51 test<long double>(); 52 test<int>(); 53 test<unsigned>(); 54 test<long long>(); 55 } 56
