cxx/test/utilities/function.objects/refwrap/refwrap.invoke/invoke.fail.cpp

1 line
1.1 KiB
C++
Raw Normal View History

//===----------------------------------------------------------------------===// // // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <functional> // reference_wrapper // template <class... ArgTypes> // requires Callable<T, ArgTypes&&...> // Callable<T, ArgTypes&&...>::result_type // operator()(ArgTypes&&... args) const; #include <functional> #include <cassert> // member data pointer: cv qualifiers should transfer from argument to return type struct A_int_1 { A_int_1() : data_(5) {} int data_; }; void test_int_1() { // member data pointer { int A_int_1::*fp = &A_int_1::data_; std::reference_wrapper<int A_int_1::*> r1(fp); A_int_1 a; assert(r1(a) == 5); r1(a) = 6; assert(r1(a) == 6); const A_int_1* ap = &a; assert(r1(ap) == 6); r1(ap) = 7; assert(r1(ap) == 7); } } int main() { test_int_1(); }