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 // <utility> 11 12 // template <class T1, class T2> struct pair 13 14 // template<size_t I, class T1, class T2> 15 // const typename tuple_element<I, std::pair<T1, T2> >::type& 16 // get(const pair<T1, T2>&); 17 18 #include <utility> 19 #include <cassert> 20 21 int main() 22 { 23 { 24 typedef std::pair<int, short> P; 25 const P p(3, 4); 26 assert(std::get<0>(p) == 3); 27 assert(std::get<1>(p) == 4); 28 } 29 30 #if __cplusplus > 201103L 31 { 32 typedef std::pair<int, short> P; 33 constexpr P p1(3, 4); 34 static_assert(std::get<0>(p1) == 3, ""); 35 static_assert(std::get<1>(p1) == 4, ""); 36 } 37 #endif 38 } 39
