copy_assign.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The LLVM Compiler Infrastructure 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This file is distributed under the University of Illinois Open Source 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// License. See LICENSE.TXT for details. 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// <functional> 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// reference_wrapper 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// reference_wrapper& operator=(const reference_wrapper<T>& x); 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <functional> 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <cassert> 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class functor1 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : public std::unary_function<int, char> 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <class T> 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)test(T& t) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::reference_wrapper<T> r(t); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T t2 = t; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::reference_wrapper<T> r2(t2); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) r2 = r; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(&r2.get() == &t); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void f() {} 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void g() {} 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)test_function() 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::reference_wrapper<void ()> r(f); 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::reference_wrapper<void ()> r2(g); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) r2 = r; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(&r2.get() == &f); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int main() 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void (*fp)() = f; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) test(fp); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) test_function(); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) functor1 f1; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) test(f1); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i = 0; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) test(i); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const int j = 0; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) test(j); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)