// unordered_map implementation -*- C++ -*-
// Copyright (C) 2010, 2011, 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.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// .
/** @file bits/unordered_map.h
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{unordered_map}
*/
#ifndef _UNORDERED_MAP_H
#define _UNORDERED_MAP_H
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_CONTAINER
/// Base types for unordered_map.
template
using __umap_traits = __detail::_Hashtable_traits<_Cache, false, true>;
template,
typename _Pred = std::equal_to<_Key>,
typename _Alloc = std::allocator >,
typename _Tr = __umap_traits<__cache_default<_Key, _Hash>::value>>
using __umap_hashtable = _Hashtable<_Key, std::pair,
_Alloc, __detail::_Select1st,
_Pred, _Hash,
__detail::_Mod_range_hashing,
__detail::_Default_ranged_hash,
__detail::_Prime_rehash_policy, _Tr>;
/// Base types for unordered_multimap.
template
using __ummap_traits = __detail::_Hashtable_traits<_Cache, false, false>;
template,
typename _Pred = std::equal_to<_Key>,
typename _Alloc = std::allocator >,
typename _Tr = __ummap_traits<__cache_default<_Key, _Hash>::value>>
using __ummap_hashtable = _Hashtable<_Key, std::pair,
_Alloc, __detail::_Select1st,
_Pred, _Hash,
__detail::_Mod_range_hashing,
__detail::_Default_ranged_hash,
__detail::_Prime_rehash_policy, _Tr>;
/**
* @brief A standard container composed of unique keys (containing
* at most one of each key value) that associates values of another type
* with the keys.
*
* @ingroup unordered_associative_containers
*
* @tparam _Key Type of key objects.
* @tparam _Tp Type of mapped objects.
* @tparam _Hash Hashing function object type, defaults to hash<_Value>.
* @tparam _Pred Predicate function object type, defaults
* to equal_to<_Value>.
* @tparam _Alloc Allocator type, defaults to allocator<_Key>.
*
* Meets the requirements of a container, and
* unordered associative container
*
* The resulting value type of the container is std::pair.
*
* Base is _Hashtable, dispatched at compile time via template
* alias __umap_hashtable.
*/
template,
class _Pred = std::equal_to<_Key>,
class _Alloc = std::allocator > >
class unordered_map
: public __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc>
{
typedef __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc> _Base;
public:
typedef typename _Base::value_type value_type;
typedef typename _Base::size_type size_type;
typedef typename _Base::hasher hasher;
typedef typename _Base::key_equal key_equal;
typedef typename _Base::allocator_type allocator_type;
explicit
unordered_map(size_type __n = 10,
const hasher& __hf = hasher(),
const key_equal& __eql = key_equal(),
const allocator_type& __a = allocator_type())
: _Base(__n, __hf, __eql, __a)
{ }
template
unordered_map(_InputIterator __f, _InputIterator __l,
size_type __n = 0,
const hasher& __hf = hasher(),
const key_equal& __eql = key_equal(),
const allocator_type& __a = allocator_type())
: _Base(__f, __l, __n, __hf, __eql, __a)
{ }
unordered_map(initializer_list __l,
size_type __n = 0,
const hasher& __hf = hasher(),
const key_equal& __eql = key_equal(),
const allocator_type& __a = allocator_type())
: _Base(__l.begin(), __l.end(), __n, __hf, __eql, __a)
{ }
};
/**
* @brief A standard container composed of equivalent keys
* (possibly containing multiple of each key value) that associates
* values of another type with the keys.
*
* @ingroup unordered_associative_containers
*
* @tparam _Key Type of key objects.
* @tparam _Tp Type of mapped objects.
* @tparam _Hash Hashing function object type, defaults to hash<_Value>.
* @tparam _Pred Predicate function object type, defaults
* to equal_to<_Value>.
* @tparam _Alloc Allocator type, defaults to allocator<_Key>.
*
* Meets the requirements of a container, and
* unordered associative container
*
* The resulting value type of the container is std::pair.
*
* Base is _Hashtable, dispatched at compile time via template
* alias __ummap_hashtable.
*/
template,
class _Pred = std::equal_to<_Key>,
class _Alloc = std::allocator > >
class unordered_multimap
: public __ummap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc>
{
typedef __ummap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc> _Base;
public:
typedef typename _Base::value_type value_type;
typedef typename _Base::size_type size_type;
typedef typename _Base::hasher hasher;
typedef typename _Base::key_equal key_equal;
typedef typename _Base::allocator_type allocator_type;
explicit
unordered_multimap(size_type __n = 10,
const hasher& __hf = hasher(),
const key_equal& __eql = key_equal(),
const allocator_type& __a = allocator_type())
: _Base(__n, __hf, __eql, __a)
{ }
template
unordered_multimap(_InputIterator __f, _InputIterator __l,
size_type __n = 0,
const hasher& __hf = hasher(),
const key_equal& __eql = key_equal(),
const allocator_type& __a = allocator_type())
: _Base(__f, __l, __n, __hf, __eql, __a)
{ }
unordered_multimap(initializer_list __l,
size_type __n = 0,
const hasher& __hf = hasher(),
const key_equal& __eql = key_equal(),
const allocator_type& __a = allocator_type())
: _Base(__l.begin(), __l.end(), __n, __hf, __eql, __a)
{ }
};
template
inline void
swap(unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
{ __x.swap(__y); }
template
inline void
swap(unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
{ __x.swap(__y); }
template
inline bool
operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
{ return __x._M_equal(__y); }
template
inline bool
operator!=(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
{ return !(__x == __y); }
template
inline bool
operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
{ return __x._M_equal(__y); }
template
inline bool
operator!=(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
{ return !(__x == __y); }
_GLIBCXX_END_NAMESPACE_CONTAINER
} // namespace std
#endif /* _UNORDERED_MAP_H */