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 // <functional> 11 12 // reference_wrapper 13 14 // template <ObjectType T> reference_wrapper<const T> cref(reference_wrapper<T> t); 15 16 #include <functional> 17 #include <cassert> 18 19 int main() 20 { 21 const int i = 0; 22 std::reference_wrapper<const int> r1 = std::cref(i); 23 std::reference_wrapper<const int> r2 = std::cref(r1); 24 assert(&r2.get() == &i); 25 } 26
