2012-03-27 23:13:14 +00:00
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// 2005-01-26 Douglas Gregor <dgregor@cs.indiana.edu>
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//
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2017-10-07 00:16:47 +00:00
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// Copyright (C) 2005-2017 Free Software Foundation, Inc.
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2012-03-27 23:13:14 +00:00
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 3.5 function template mem_fn
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#include <tr1/functional>
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#include <testsuite_hooks.h>
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#include <testsuite_tr1.h>
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struct X { int bar; };
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struct Y : X { };
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template<typename T>
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struct dumb_ptr
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{
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dumb_ptr(T* p) : p(p) {}
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T& operator*() const { return *p; }
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private:
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T* p;
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};
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// Test mem_fn with a data member
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void test01(int r = 0)
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{
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using std::tr1::mem_fn;
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X x;
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Y y;
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const X& xc = x;
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const Y& yc = y;
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X* xp = &x;
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Y* yp =&y;
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const X* xpc = xp;
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const Y* ypc = yp;
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dumb_ptr<X> xd(xp);
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dumb_ptr<Y> yd(yp);
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const dumb_ptr<X>& xdc = xd;
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const dumb_ptr<Y>& ydc = yd;
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int& bx = mem_fn(&X::bar)(x);
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const int& bxc = mem_fn(&X::bar)(xc);
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int& bxp = mem_fn(&X::bar)(xp);
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const int& bxpc = mem_fn(&X::bar)(xpc);
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const int& bxd = mem_fn(&X::bar)(xd);
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const int& bxdc = mem_fn(&X::bar)(xdc);
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int& by = mem_fn(&X::bar)(y);
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const int& byc = mem_fn(&X::bar)(yc);
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int& byp = mem_fn(&X::bar)(yp);
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const int& bypc = mem_fn(&X::bar)(ypc);
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const int& byd = mem_fn(&X::bar)(yd);
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const int& bydc = mem_fn(&X::bar)(ydc);
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2017-10-07 00:16:47 +00:00
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2012-03-27 23:13:14 +00:00
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// Avoid unused variable warnings.
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r = bx + bxc + bxp + bxpc + bxd + bxdc + by + byc + byp + bypc + byd + bydc;
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}
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int main()
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{
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test01();
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return 0;
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}
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