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// 2005-01-26 Douglas Gregor <dgregor@cs.indiana.edu>
//
// Copyright (C) 2005, 2009 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 3.5 function template mem_fn
#include <tr1/functional>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
struct X { int bar; };
struct Y : X { };
template<typename T>
struct dumb_ptr
{
dumb_ptr(T* p) : p(p) {}
T& operator*() const { return *p; }
private:
T* p;
};
// Test mem_fn with a data member
void test01(int r = 0)
{
using std::tr1::mem_fn;
X x;
Y y;
const X& xc = x;
const Y& yc = y;
X* xp = &x;
Y* yp =&y;
const X* xpc = xp;
const Y* ypc = yp;
dumb_ptr<X> xd(xp);
dumb_ptr<Y> yd(yp);
const dumb_ptr<X>& xdc = xd;
const dumb_ptr<Y>& ydc = yd;
int& bx = mem_fn(&X::bar)(x);
const int& bxc = mem_fn(&X::bar)(xc);
int& bxp = mem_fn(&X::bar)(xp);
const int& bxpc = mem_fn(&X::bar)(xpc);
const int& bxd = mem_fn(&X::bar)(xd);
const int& bxdc = mem_fn(&X::bar)(xdc);
int& by = mem_fn(&X::bar)(y);
const int& byc = mem_fn(&X::bar)(yc);
int& byp = mem_fn(&X::bar)(yp);
const int& bypc = mem_fn(&X::bar)(ypc);
const int& byd = mem_fn(&X::bar)(yd);
const int& bydc = mem_fn(&X::bar)(ydc);
// Avoid unused variable warnings.
r = bx + bxc + bxp + bxpc + bxd + bxdc + by + byc + byp + bypc + byd + bydc;
}
int main()
{
test01();
return 0;
}
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