copy_ctor.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b
1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <functional> 11 12// reference_wrapper 13 14// reference_wrapper(const reference_wrapper<T>& x); 15 16#include <functional> 17#include <cassert> 18 19class functor1 20 : public std::unary_function<int, char> 21{ 22}; 23 24template <class T> 25void 26test(T& t) 27{ 28 std::reference_wrapper<T> r(t); 29 std::reference_wrapper<T> r2 = r; 30 assert(&r2.get() == &t); 31} 32 33void f() {} 34 35int main() 36{ 37 void (*fp)() = f; 38 test(fp); 39 test(f); 40 functor1 f1; 41 test(f1); 42 int i = 0; 43 test(i); 44 const int j = 0; 45 test(j); 46} 47