re PR libstdc++/33807 (Incorrect ambiguous overload)

2007-10-18  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/33807
	* include/bits/allocator.h (operator==(const allocator<_Tp>&,
	const allocator<_Tp>&), operator!=(const allocator<_Tp>&,
	const allocator<_Tp>&)): Add.
	* testsuite/20_util/allocator/33807.cc: New.

From-SVN: r129434
This commit is contained in:
Paolo Carlini 2007-10-18 10:00:18 +00:00 committed by Paolo Carlini
parent 254f522229
commit 741e7594be
3 changed files with 51 additions and 0 deletions

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@ -1,3 +1,11 @@
2007-10-18 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/33807
* include/bits/allocator.h (operator==(const allocator<_Tp>&,
const allocator<_Tp>&), operator!=(const allocator<_Tp>&,
const allocator<_Tp>&)): Add.
* testsuite/20_util/allocator/33807.cc: New.
2007-10-17 Paolo Carlini <pcarlini@suse.de>
* include/bits/cpp_type_traits.h (__is_byte): Add.

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@ -113,11 +113,21 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
operator==(const allocator<_T1>&, const allocator<_T2>&)
{ return true; }
template<typename _Tp>
inline bool
operator==(const allocator<_Tp>&, const allocator<_Tp>&)
{ return true; }
template<typename _T1, typename _T2>
inline bool
operator!=(const allocator<_T1>&, const allocator<_T2>&)
{ return false; }
template<typename _Tp>
inline bool
operator!=(const allocator<_Tp>&, const allocator<_Tp>&)
{ return false; }
// Inhibit implicit instantiations for required instantiations,
// which are defined via explicit instantiations elsewhere.
// NB: This syntax is a GNU extension.

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@ -0,0 +1,33 @@
// { dg-do compile }
// Copyright (C) 2007 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 2, 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 COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
#include <list>
// libstdc++/33807
template <class T>
bool operator != (const T& x, const T& y) { return !(x == y); }
struct foo { };
void fnx()
{
std::list<foo> l1, l2;
l1 = l2;
}