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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);
}
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