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stl_map.h (operator[](key_type&&)): Replace std::make_pair with value_type. 

2012-08-03  Ollie Wild  <aaw@google.com>
	    Richard Smith  <richardsmith@google.com>

	* include/bits/stl_map.h (operator[](key_type&&)): Replace
	std::make_pair with value_type.
	* testsuite/23_containers/map/operators/2.cc: New test.

Co-Authored-By: Richard Smith <richardsmith@google.com>

From-SVN: r190128
This commit is contained in:
Ollie Wild 2012-08-03 15:26:36 +00:00 committed by Ollie Wild
parent 9b44f5d907
commit 2222df9f39
3 changed files with 46 additions and 1 deletions
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7
libstdc++-v3/ChangeLog
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@ -1,3 +1,10 @@
2012-08-03 Ollie Wild <aaw@google.com>
Richard Smith <richardsmith@google.com>
* include/bits/stl_map.h (operator[](key_type&&)): Replace
std::make_pair with value_type.
* testsuite/23_containers/map/operators/2.cc: New test.
2012-08-03 Jonathan Wakely <jwakely.gcc@gmail.com>
* include/std/memory: Include auto_ptr.h later.

2
libstdc++-v3/include/bits/stl_map.h
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@ -475,7 +475,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
iterator __i = lower_bound(__k);
// __i->first is greater than or equivalent to __k.
if (__i == end() || key_comp()(__k, (*__i).first))
__i = insert(__i, std::make_pair(std::move(__k), mapped_type()));
__i = insert(__i, value_type(std::move(__k), mapped_type()));
return (*__i).second;
}
#endif

38
libstdc++-v3/testsuite/23_containers/map/operators/2.cc Normal file
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@ -0,0 +1,38 @@
// Copyright (C) 2012
// 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/>.
// 23.4.4 template class map
// This test verifies that the value type of a map need not be default
// copyable.
// { dg-do compile }
// { dg-options "-std=gnu++11" }
#include <map>
struct Mapped {
Mapped();
explicit Mapped(const Mapped&);
};
Mapped & foo()
{
std::map<int, Mapped> m;
return m[0];
}