44 lines
824 B
C++
44 lines
824 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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// template<Returnable R, class T> unspecified mem_fn(R T::* pm);
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#include <functional>
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#include <cassert>
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struct A
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{
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double data_;
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};
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template <class F>
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void
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test(F f)
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{
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{
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A a;
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f(a) = 5;
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assert(a.data_ == 5);
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A* ap = &a;
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f(ap) = 6;
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assert(a.data_ == 6);
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const A* cap = ap;
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assert(f(cap) == f(ap));
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const F& cf = f;
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assert(cf(ap) == f(ap));
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}
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}
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int main()
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{
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test(std::mem_fn(&A::data_));
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}
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