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shared_ptr.h (hash<shared_ptr>): Add.

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2010-06-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/shared_ptr.h (hash<shared_ptr>): Add.
	* include/bits/shared_ptr_base.h (hash<__shared_ptr>): Likewise.
	* include/bits/unique_ptr.h (hash<unique_ptr>): Likewise.
	* testsuite/20_util/shared_ptr/hash/1.cc: New.
	* testsuite/20_util/unique_ptr/hash/1.cc: Likewise.

From-SVN: r160621
This commit is contained in:
Paolo Carlini 2010-06-11 16:20:24 +00:00 committed by Paolo Carlini
parent 6575ae2160
commit b0e788cc09
6 changed files with 138 additions and 1 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2010-06-11 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/shared_ptr.h (hash<shared_ptr>): Add.
* include/bits/shared_ptr_base.h (hash<__shared_ptr>): Likewise.
* include/bits/unique_ptr.h (hash<unique_ptr>): Likewise.
* testsuite/20_util/shared_ptr/hash/1.cc: New.
* testsuite/20_util/unique_ptr/hash/1.cc: Likewise.
2010-06-11 Jonathan Wakely <jwakely.gcc@gmail.com>
* doc/xml/manual/appendix_contributing.xml: Indent code examples

10
libstdc++-v3/include/bits/shared_ptr.h
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@ -514,6 +514,16 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
std::forward<_Args>(__args)...);
}
/// std::hash specialization for shared_ptr.
template<typename _Tp>
struct hash<shared_ptr<_Tp>>
: public std::unary_function<shared_ptr<_Tp>, size_t>
{
size_t
operator()(const shared_ptr<_Tp>& __s) const
{ return std::hash<_Tp*>()(__s.get()); }
};
// @} group pointer_abstractions
_GLIBCXX_END_NAMESPACE

10
libstdc++-v3/include/bits/shared_ptr_base.h
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@ -1164,6 +1164,16 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
std::forward<_Args>(__args)...);
}
/// std::hash specialization for __shared_ptr.
template<typename _Tp, _Lock_policy _Lp>
struct hash<__shared_ptr<_Tp, _Lp>>
: public std::unary_function<__shared_ptr<_Tp, _Lp>, size_t>
{
size_t
operator()(const __shared_ptr<_Tp, _Lp>& __s) const
{ return std::hash<_Tp*>()(__s.get()); }
};
_GLIBCXX_END_NAMESPACE
#endif // _SHARED_PTR_BASE_H

15
libstdc++-v3/include/bits/unique_ptr.h
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@ -233,7 +233,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
// [unique.ptr.runtime]
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 740 - omit specialization for array objects with a compile time length
template<typename _Tp, typename _Tp_Deleter>
template<typename _Tp, typename _Tp_Deleter>
class unique_ptr<_Tp[], _Tp_Deleter>
{
typedef std::tuple<_Tp*, _Tp_Deleter> __tuple_type;
@ -444,6 +444,19 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
const unique_ptr<_Up, _Up_Deleter>& __y)
{ return !(__x.get() < __y.get()); }
/// std::hash specialization for unique_ptr.
template<typename _Tp, typename _Tp_Deleter>
struct hash<unique_ptr<_Tp, _Tp_Deleter>>
: public std::unary_function<unique_ptr<_Tp, _Tp_Deleter>, size_t>
{
size_t
operator()(const unique_ptr<_Tp, _Tp_Deleter>& __u) const
{
typedef unique_ptr<_Tp, _Tp_Deleter> _UP;
return std::hash<typename _UP::pointer>()(__u.get());
}
};
// @} group pointer_abstractions
_GLIBCXX_END_NAMESPACE

48
libstdc++-v3/testsuite/20_util/shared_ptr/hash/1.cc Normal file
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@ -0,0 +1,48 @@
// { dg-options "-std=gnu++0x" }
// 2010-06-11 Paolo Carlini <paolo.carlini@oracle.com>
// Copyright (C) 2010 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/>.
#include <memory>
#include <testsuite_hooks.h>
void test01()
{
bool test __attribute__((unused)) = true;
struct T { };
std::shared_ptr<T> s0(new T);
std::hash<std::shared_ptr<T>> hs0;
std::hash<T*> hp0;
VERIFY( hs0(s0) == hp0(s0.get()) );
std::__shared_ptr<T> s1(new T);
std::hash<std::__shared_ptr<T>> hs1;
std::hash<T*> hp1;
VERIFY( hs1(s1) == hp1(s1.get()) );
}
int main()
{
test01();
return 0;
}

48
libstdc++-v3/testsuite/20_util/unique_ptr/hash/1.cc Normal file
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@ -0,0 +1,48 @@
// { dg-options "-std=gnu++0x" }
// 2010-06-11 Paolo Carlini <paolo.carlini@oracle.com>
// Copyright (C) 2010 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/>.
#include <memory>
#include <testsuite_hooks.h>
void test01()
{
bool test __attribute__((unused)) = true;
struct T { };
std::unique_ptr<T> u0(new T);
std::hash<std::unique_ptr<T>> hu0;
std::hash<typename std::unique_ptr<T>::pointer> hp0;
VERIFY( hu0(u0) == hp0(u0.get()) );
std::unique_ptr<T[]> u1(new T[10]);
std::hash<std::unique_ptr<T[]>> hu1;
std::hash<typename std::unique_ptr<T[]>::pointer> hp1;
VERIFY( hu1(u1) == hp1(u1.get()) );
}
int main()
{
test01();
return 0;
}