cxx/test/utilities/function.objects/refwrap/refwrap.helpers/ref_2.pass.cpp

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//===----------------------------------------------------------------------===// // // 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 <ObjectType T> reference_wrapper<T> ref(reference_wrapper<T>t); #include <functional> #include <cassert> int main() { int i = 0; std::reference_wrapper<int> r1 = std::ref(i); std::reference_wrapper<int> r2 = std::ref(r1); assert(&r2.get() == &i); }