f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
1 line
1.3 KiB
C++
1 line
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. 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, CopyConstructible... Args>
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// unspecified mem_fn(R (T::* pm)(Args...) const);
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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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char test0() const {return 'a';}
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char test1(int) const {return 'b';}
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char test2(int, double) const {return 'c';}
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};
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template <class F>
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void
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test0(F f)
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{
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{
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A a;
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assert(f(a) == 'a');
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A* ap = &a;
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assert(f(ap) == 'a');
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const A* cap = &a;
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assert(f(cap) == 'a');
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}
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}
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template <class F>
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void
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test1(F f)
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{
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{
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A a;
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assert(f(a, 1) == 'b');
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A* ap = &a;
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assert(f(ap, 2) == 'b');
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const A* cap = &a;
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assert(f(cap, 2) == 'b');
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}
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}
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template <class F>
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void
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test2(F f)
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{
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{
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A a;
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assert(f(a, 1, 2) == 'c');
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A* ap = &a;
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assert(f(ap, 2, 3.5) == 'c');
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const A* cap = &a;
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assert(f(cap, 2, 3.5) == 'c');
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}
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}
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int main()
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{
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test0(std::mem_fn(&A::test0));
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test1(std::mem_fn(&A::test1));
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test2(std::mem_fn(&A::test2));
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}
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