profile/multimap.h
Go to the documentation of this file.
// Profiling multimap implementation -*- C++ -*-
// Copyright (C) 2009-2018 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
// <http://www.gnu.org/licenses/>.
/** @file profile/multimap.h
* This file is a GNU profile extension to the Standard C++ Library.
*/
#ifndef _GLIBCXX_PROFILE_MULTIMAP_H
#define _GLIBCXX_PROFILE_MULTIMAP_H 1
#include <profile/base.h>
#include <profile/ordered_base.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
namespace __profile
{
/// Class std::multimap wrapper with performance instrumentation.
template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>,
typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > >
class multimap
: public _GLIBCXX_STD_C::multimap<_Key, _Tp, _Compare, _Allocator>,
public _Ordered_profile<map<_Key, _Tp, _Compare, _Allocator> >
{
typedef _GLIBCXX_STD_C::multimap<_Key, _Tp, _Compare, _Allocator> _Base;
typedef typename _Base::iterator _Base_iterator;
typedef typename _Base::const_iterator _Base_const_iterator;
public:
// types:
typedef _Key key_type;
typedef _Tp mapped_type;
typedef std::pair<const _Key, _Tp> value_type;
typedef _Compare key_compare;
typedef typename _Base::reference reference;
typedef typename _Base::const_reference const_reference;
typedef __iterator_tracker<_Base_iterator,
multimap> iterator;
typedef __iterator_tracker<_Base_const_iterator,
multimap> const_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
typedef typename _Base::size_type size_type;
typedef typename _Base::difference_type difference_type;
// 23.3.1.1 construct/copy/destroy:
#if __cplusplus < 201103L
multimap()
: _Base() { }
multimap(const multimap& __x)
: _Base(__x) { }
~multimap() { }
#else
multimap() = default;
multimap(const multimap&) = default;
multimap(multimap&&) = default;
~multimap() = default;
#endif
explicit multimap(const _Compare& __comp,
const _Allocator& __a = _Allocator())
: _Base(__comp, __a) { }
#if __cplusplus >= 201103L
template<typename _InputIterator,
typename = std::_RequireInputIter<_InputIterator>>
#else
template<typename _InputIterator>
#endif
multimap(_InputIterator __first, _InputIterator __last,
const _Compare& __comp = _Compare(),
const _Allocator& __a = _Allocator())
: _Base(__first, __last, __comp, __a) { }
#if __cplusplus >= 201103L
multimap(initializer_list<value_type> __l,
const _Compare& __c = _Compare(),
const _Allocator& __a = _Allocator())
: _Base(__l, __c, __a) { }
explicit
multimap(const _Allocator& __a)
: _Base(__a) { }
multimap(const multimap& __x, const _Allocator& __a)
: _Base(__x, __a) { }
multimap(multimap&& __x, const _Allocator& __a)
noexcept( noexcept(_Base(std::move(__x), __a)) )
: _Base(std::move(__x), __a) { }
multimap(initializer_list<value_type> __l, const _Allocator& __a)
: _Base(__l, __a) { }
template<typename _InputIterator>
multimap(_InputIterator __first, _InputIterator __last,
const _Allocator& __a)
: _Base(__first, __last, __a) { }
#endif
multimap(const _Base& __x)
: _Base(__x) { }
#if __cplusplus < 201103L
multimap&
operator=(const multimap& __x)
{
this->_M_profile_destruct();
_M_base() = __x;
this->_M_profile_construct();
return *this;
}
#else
multimap&
operator=(const multimap&) = default;
multimap&
operator=(multimap&&) = default;
multimap&
operator=(initializer_list<value_type> __l)
{
this->_M_profile_destruct();
_M_base() = __l;
this->_M_profile_construct();
return *this;
}
#endif
// iterators
iterator
begin() _GLIBCXX_NOEXCEPT
{ return iterator(_Base::begin(), this); }
const_iterator
begin() const _GLIBCXX_NOEXCEPT
{ return const_iterator(_Base::begin(), this); }
iterator
end() _GLIBCXX_NOEXCEPT
{ return iterator(_Base::end(), this); }
const_iterator
end() const _GLIBCXX_NOEXCEPT
{ return const_iterator(_Base::end(), this); }
#if __cplusplus >= 201103L
const_iterator
cbegin() const noexcept
{ return const_iterator(_Base::cbegin(), this); }
const_iterator
cend() const noexcept
{ return const_iterator(_Base::cend(), this); }
#endif
reverse_iterator
rbegin() _GLIBCXX_NOEXCEPT
{
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return reverse_iterator(end());
}
const_reverse_iterator
rbegin() const _GLIBCXX_NOEXCEPT
{
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return const_reverse_iterator(end());
}
reverse_iterator
rend() _GLIBCXX_NOEXCEPT
{
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return reverse_iterator(begin());
}
const_reverse_iterator
rend() const _GLIBCXX_NOEXCEPT
{
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return const_reverse_iterator(begin());
}
#if __cplusplus >= 201103L
const_reverse_iterator
crbegin() const noexcept
{
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return const_reverse_iterator(cend());
}
const_reverse_iterator
crend() const noexcept
{
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return const_reverse_iterator(cbegin());
}
#endif
// modifiers:
#if __cplusplus >= 201103L
template<typename... _Args>
iterator
emplace(_Args&&... __args)
{
__profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1);
return iterator(_Base::emplace(std::forward<_Args>(__args)...), this);
}
template<typename... _Args>
iterator
emplace_hint(const_iterator __pos, _Args&&... __args)
{
auto size_before = this->size();
auto __res
= _Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...);
__profcxx_map2umap_insert(this->_M_map2umap_info,
size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1);
return iterator(__res, this);
}
#endif
iterator
insert(const value_type& __x)
{
__profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1);
return iterator(_Base::insert(__x), this);
}
#if __cplusplus >= 201103L
template<typename _Pair, typename = typename
std::enable_if<std::is_constructible<value_type,
_Pair&&>::value>::type>
iterator
insert(_Pair&& __x)
{
__profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1);
return iterator(_Base::insert(std::forward<_Pair>(__x)), this);
}
#endif
#if __cplusplus >= 201103L
void
insert(std::initializer_list<value_type> __list)
{ insert(__list.begin(), __list.end()); }
#endif
iterator
#if __cplusplus >= 201103L
insert(const_iterator __pos, const value_type& __x)
#else
insert(iterator __pos, const value_type& __x)
#endif
{
size_type size_before = this->size();
_Base_iterator __res = _Base::insert(__pos.base(), __x);
__profcxx_map2umap_insert(this->_M_map2umap_info,
size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1);
return iterator(__res, this);
}
#if __cplusplus >= 201103L
template<typename _Pair, typename = typename
std::enable_if<std::is_constructible<value_type,
_Pair&&>::value>::type>
iterator
insert(const_iterator __pos, _Pair&& __x)
{
size_type size_before = this->size();
auto __res = _Base::insert(__pos.base(), std::forward<_Pair>(__x));
__profcxx_map2umap_insert(this->_M_map2umap_info,
size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1);
return iterator(__res, this);
}
#endif
template<typename _InputIterator>
void
insert(_InputIterator __first, _InputIterator __last)
{
for (; __first != __last; ++__first)
insert(*__first);
}
#if __cplusplus >= 201103L
iterator
erase(const_iterator __pos)
{
__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
return iterator(_Base::erase(__pos.base()), this);
}
iterator
erase(iterator __pos)
{
__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
return iterator(_Base::erase(__pos.base()), this);
}
#else
void
erase(iterator __pos)
{
__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
_Base::erase(__pos.base());
}
#endif
size_type
erase(const key_type& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
return _Base::erase(__x);
}
#if __cplusplus >= 201103L
iterator
erase(const_iterator __first, const_iterator __last)
{
if (__first != __last)
{
iterator __ret;
for (; __first != __last;)
__ret = erase(__first++);
return __ret;
}
else
return iterator(_Base::erase(__first.base(), __last.base()), this);
}
#else
void
erase(iterator __first, iterator __last)
{
for (; __first != __last;)
erase(__first++);
}
#endif
void
swap(multimap& __x)
_GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) )
{
std::swap(this->_M_map2umap_info, __x._M_map2umap_info);
_Base::swap(__x);
}
void
clear() _GLIBCXX_NOEXCEPT
{
this->_M_profile_destruct();
_Base::clear();
this->_M_profile_construct();
}
// 23.3.1.3 multimap operations:
iterator
find(const key_type& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
return iterator(_Base::find(__x), this);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
iterator
find(const _Kt& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
return { _Base::find(__x), this };
}
#endif
const_iterator
find(const key_type& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
return const_iterator(_Base::find(__x), this);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
const_iterator
find(const _Kt& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
return { _Base::find(__x), this };
}
#endif
size_type
count(const key_type& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
return _Base::count(__x);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
size_type
count(const _Kt& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
return _Base::count(__x);
}
#endif
iterator
lower_bound(const key_type& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return iterator(_Base::lower_bound(__x), this);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
iterator
lower_bound(const _Kt& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return { _Base::lower_bound(__x), this };
}
#endif
const_iterator
lower_bound(const key_type& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return const_iterator(_Base::lower_bound(__x), this);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
const_iterator
lower_bound(const _Kt& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return { _Base::lower_bound(__x), this };
}
#endif
iterator
upper_bound(const key_type& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return iterator(_Base::upper_bound(__x), this);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
iterator
upper_bound(const _Kt& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return { _Base::upper_bound(__x), this };
}
#endif
const_iterator
upper_bound(const key_type& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return const_iterator(_Base::upper_bound(__x), this);
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
const_iterator
upper_bound(const _Kt& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
__profcxx_map2umap_invalidate(this->_M_map2umap_info);
return { _Base::upper_bound(__x), this };
}
#endif
std::pair<iterator,iterator>
equal_range(const key_type& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
std::pair<_Base_iterator, _Base_iterator> __base_ret
= _Base::equal_range(__x);
return std::make_pair(iterator(__base_ret.first, this),
iterator(__base_ret.second, this));
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
std::pair<iterator, iterator>
equal_range(const _Kt& __x)
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
auto __res = _Base::equal_range(__x);
return { { __res.first, this }, { __res.second, this } };
}
#endif
std::pair<const_iterator,const_iterator>
equal_range(const key_type& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
std::pair<_Base_const_iterator, _Base_const_iterator> __base_ret
= _Base::equal_range(__x);
return std::make_pair(const_iterator(__base_ret.first, this),
const_iterator(__base_ret.second, this));
}
#if __cplusplus > 201103L
template<typename _Kt,
typename _Req =
typename __has_is_transparent<_Compare, _Kt>::type>
std::pair<const_iterator, const_iterator>
equal_range(const _Kt& __x) const
{
__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
auto __res = _Base::equal_range(__x);
return { { __res.first, this }, { __res.second, this } };
}
#endif
_Base&
_M_base() _GLIBCXX_NOEXCEPT { return *this; }
const _Base&
_M_base() const _GLIBCXX_NOEXCEPT { return *this; }
private:
/** If hint is used we consider that the map and unordered_map
* operations have equivalent insertion cost so we do not update metrics
* about it.
* Note that to find out if hint has been used is libstdc++
* implementation dependent.
*/
bool
_M_hint_used(_Base_const_iterator __hint, _Base_iterator __res)
{
return (__hint == __res
|| (__hint == _M_base().end() && ++__res == _M_base().end())
|| (__hint != _M_base().end() && (++__hint == __res
|| ++__res == --__hint)));
}
template<typename _K1, typename _T1, typename _C1, typename _A1>
friend bool
operator==(const multimap<_K1, _T1, _C1, _A1>&,
const multimap<_K1, _T1, _C1, _A1>&);
template<typename _K1, typename _T1, typename _C1, typename _A1>
friend bool
operator<(const multimap<_K1, _T1, _C1, _A1>&,
const multimap<_K1, _T1, _C1, _A1>&);
};
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline bool
operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
{
__profcxx_map2umap_invalidate(__lhs._M_map2umap_info);
__profcxx_map2umap_invalidate(__rhs._M_map2umap_info);
return __lhs._M_base() == __rhs._M_base();
}
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline bool
operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
{
__profcxx_map2umap_invalidate(__lhs._M_map2umap_info);
__profcxx_map2umap_invalidate(__rhs._M_map2umap_info);
return __lhs._M_base() < __rhs._M_base();
}
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline bool
operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
{ return !(__lhs == __rhs); }
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline bool
operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
{ return !(__rhs < __lhs); }
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline bool
operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
{ return !(__lhs < __rhs); }
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline bool
operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
{ return __rhs < __lhs; }
template<typename _Key, typename _Tp,
typename _Compare, typename _Allocator>
inline void
swap(multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
_GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs)))
{ __lhs.swap(__rhs); }
} // namespace __profile
} // namespace std
#endif
std::enable_if
Define a member typedef type only if a boolean constant is true.
Definition: type_traits:1987
base.h
Sequential helper functions. This file is a GNU profile extension to the Standard C++ Library...
std::make_pair
constexpr pair< typename __decay_and_strip< _T1 >::__type, typename __decay_and_strip< _T2 >::__type > make_pair(_T1 &&__x, _T2 &&__y)
A convenience wrapper for creating a pair from two objects.
Definition: stl_pair.h:519
std::pair::second
_T2 second
first is a copy of the first object
Definition: stl_pair.h:204
std::pair::first
_T1 first
second_type is the second bound type
Definition: stl_pair.h:203
ordered_base.h
std::__profile::multimap
Class std::multimap wrapper with performance instrumentation.
Definition: profile/multimap.h:42
std::reverse_iterator
Definition: bits/stl_iterator.h:101
std
ISO C++ entities toplevel namespace is std.
std::is_constructible
is_constructible
Definition: type_traits:932
std::initializer_list
initializer_list
Definition: initializer_list:47
std::pair
Struct holding two objects of arbitrary type.
Definition: stl_pair.h:198