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 // constexpr pair(); 15 16 #include <utility> 17 #include <cassert> 18 main()19int main() 20 { 21 { 22 typedef std::pair<float, short*> P; 23 P p; 24 assert(p.first == 0.0f); 25 assert(p.second == nullptr); 26 } 27 28 #if _LIBCPP_STD_VER > 11 29 { 30 typedef std::pair<float, short*> P; 31 constexpr P p; 32 static_assert(p.first == 0.0f, ""); 33 static_assert(p.second == nullptr, ""); 34 } 35 #endif 36 } 37