forked from OSchip/llvm-project
47 lines
870 B
C++
47 lines
870 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <functional>
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// reference_wrapper
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// reference_wrapper(const reference_wrapper<T>& x);
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#include <functional>
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#include <cassert>
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class functor1
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: public std::unary_function<int, char>
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{
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};
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template <class T>
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void
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test(T& t)
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{
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std::reference_wrapper<T> r(t);
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std::reference_wrapper<T> r2 = r;
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assert(&r2.get() == &t);
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}
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void f() {}
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int main()
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{
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void (*fp)() = f;
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test(fp);
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test(f);
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functor1 f1;
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test(f1);
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int i = 0;
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test(i);
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const int j = 0;
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test(j);
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}
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