656 lines
18 KiB
C++
656 lines
18 KiB
C++
// Debugging vector implementation -*- C++ -*-
|
|
|
|
// Copyright (C) 2003-2013 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 debug/vector
|
|
* This file is a GNU debug extension to the Standard C++ Library.
|
|
*/
|
|
|
|
#ifndef _GLIBCXX_DEBUG_VECTOR
|
|
#define _GLIBCXX_DEBUG_VECTOR 1
|
|
|
|
#include <vector>
|
|
#include <utility>
|
|
#include <debug/safe_sequence.h>
|
|
#include <debug/safe_iterator.h>
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
namespace __debug
|
|
{
|
|
/// Class std::vector with safety/checking/debug instrumentation.
|
|
template<typename _Tp,
|
|
typename _Allocator = std::allocator<_Tp> >
|
|
class vector
|
|
: public _GLIBCXX_STD_C::vector<_Tp, _Allocator>,
|
|
public __gnu_debug::_Safe_sequence<vector<_Tp, _Allocator> >
|
|
{
|
|
typedef _GLIBCXX_STD_C::vector<_Tp, _Allocator> _Base;
|
|
|
|
typedef typename _Base::iterator _Base_iterator;
|
|
typedef typename _Base::const_iterator _Base_const_iterator;
|
|
typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
|
|
|
|
#if __cplusplus >= 201103L
|
|
typedef __gnu_cxx::__alloc_traits<_Allocator> _Alloc_traits;
|
|
#endif
|
|
|
|
public:
|
|
typedef typename _Base::reference reference;
|
|
typedef typename _Base::const_reference const_reference;
|
|
|
|
typedef __gnu_debug::_Safe_iterator<_Base_iterator,vector>
|
|
iterator;
|
|
typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,vector>
|
|
const_iterator;
|
|
|
|
typedef typename _Base::size_type size_type;
|
|
typedef typename _Base::difference_type difference_type;
|
|
|
|
typedef _Tp value_type;
|
|
typedef _Allocator allocator_type;
|
|
typedef typename _Base::pointer pointer;
|
|
typedef typename _Base::const_pointer const_pointer;
|
|
typedef std::reverse_iterator<iterator> reverse_iterator;
|
|
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
|
|
|
|
// 23.2.4.1 construct/copy/destroy:
|
|
explicit
|
|
vector(const _Allocator& __a = _Allocator())
|
|
: _Base(__a), _M_guaranteed_capacity(0) { }
|
|
|
|
#if __cplusplus >= 201103L
|
|
explicit
|
|
vector(size_type __n, const _Allocator& __a = _Allocator())
|
|
: _Base(__n, __a), _M_guaranteed_capacity(__n) { }
|
|
|
|
vector(size_type __n, const _Tp& __value,
|
|
const _Allocator& __a = _Allocator())
|
|
: _Base(__n, __value, __a), _M_guaranteed_capacity(__n) { }
|
|
#else
|
|
explicit
|
|
vector(size_type __n, const _Tp& __value = _Tp(),
|
|
const _Allocator& __a = _Allocator())
|
|
: _Base(__n, __value, __a), _M_guaranteed_capacity(__n) { }
|
|
#endif
|
|
|
|
#if __cplusplus >= 201103L
|
|
template<class _InputIterator,
|
|
typename = std::_RequireInputIter<_InputIterator>>
|
|
#else
|
|
template<class _InputIterator>
|
|
#endif
|
|
vector(_InputIterator __first, _InputIterator __last,
|
|
const _Allocator& __a = _Allocator())
|
|
: _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
|
|
__last)),
|
|
__gnu_debug::__base(__last), __a),
|
|
_M_guaranteed_capacity(0)
|
|
{ _M_update_guaranteed_capacity(); }
|
|
|
|
vector(const vector& __x)
|
|
: _Base(__x), _M_guaranteed_capacity(__x.size()) { }
|
|
|
|
/// Construction from a release-mode vector
|
|
vector(const _Base& __x)
|
|
: _Base(__x), _M_guaranteed_capacity(__x.size()) { }
|
|
|
|
#if __cplusplus >= 201103L
|
|
vector(vector&& __x) noexcept
|
|
: _Base(std::move(__x)),
|
|
_M_guaranteed_capacity(this->size())
|
|
{
|
|
this->_M_swap(__x);
|
|
__x._M_guaranteed_capacity = 0;
|
|
}
|
|
|
|
vector(const vector& __x, const allocator_type& __a)
|
|
: _Base(__x, __a), _M_guaranteed_capacity(__x.size()) { }
|
|
|
|
vector(vector&& __x, const allocator_type& __a)
|
|
: _Base(std::move(__x), __a),
|
|
_M_guaranteed_capacity(this->size())
|
|
{
|
|
__x._M_invalidate_all();
|
|
__x._M_guaranteed_capacity = 0;
|
|
}
|
|
|
|
vector(initializer_list<value_type> __l,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(__l, __a),
|
|
_M_guaranteed_capacity(__l.size()) { }
|
|
#endif
|
|
|
|
~vector() _GLIBCXX_NOEXCEPT { }
|
|
|
|
vector&
|
|
operator=(const vector& __x)
|
|
{
|
|
static_cast<_Base&>(*this) = __x;
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
return *this;
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
vector&
|
|
operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
|
|
{
|
|
__glibcxx_check_self_move_assign(__x);
|
|
_Base::operator=(std::move(__x));
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
__x._M_invalidate_all();
|
|
__x._M_guaranteed_capacity = 0;
|
|
return *this;
|
|
}
|
|
|
|
vector&
|
|
operator=(initializer_list<value_type> __l)
|
|
{
|
|
static_cast<_Base&>(*this) = __l;
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
return *this;
|
|
}
|
|
#endif
|
|
|
|
#if __cplusplus >= 201103L
|
|
template<typename _InputIterator,
|
|
typename = std::_RequireInputIter<_InputIterator>>
|
|
#else
|
|
template<typename _InputIterator>
|
|
#endif
|
|
void
|
|
assign(_InputIterator __first, _InputIterator __last)
|
|
{
|
|
__glibcxx_check_valid_range(__first, __last);
|
|
_Base::assign(__gnu_debug::__base(__first),
|
|
__gnu_debug::__base(__last));
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
|
|
void
|
|
assign(size_type __n, const _Tp& __u)
|
|
{
|
|
_Base::assign(__n, __u);
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
void
|
|
assign(initializer_list<value_type> __l)
|
|
{
|
|
_Base::assign(__l);
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
#endif
|
|
|
|
using _Base::get_allocator;
|
|
|
|
// 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); }
|
|
|
|
reverse_iterator
|
|
rbegin() _GLIBCXX_NOEXCEPT
|
|
{ return reverse_iterator(end()); }
|
|
|
|
const_reverse_iterator
|
|
rbegin() const _GLIBCXX_NOEXCEPT
|
|
{ return const_reverse_iterator(end()); }
|
|
|
|
reverse_iterator
|
|
rend() _GLIBCXX_NOEXCEPT
|
|
{ return reverse_iterator(begin()); }
|
|
|
|
const_reverse_iterator
|
|
rend() const _GLIBCXX_NOEXCEPT
|
|
{ return const_reverse_iterator(begin()); }
|
|
|
|
#if __cplusplus >= 201103L
|
|
const_iterator
|
|
cbegin() const noexcept
|
|
{ return const_iterator(_Base::begin(), this); }
|
|
|
|
const_iterator
|
|
cend() const noexcept
|
|
{ return const_iterator(_Base::end(), this); }
|
|
|
|
const_reverse_iterator
|
|
crbegin() const noexcept
|
|
{ return const_reverse_iterator(end()); }
|
|
|
|
const_reverse_iterator
|
|
crend() const noexcept
|
|
{ return const_reverse_iterator(begin()); }
|
|
#endif
|
|
|
|
// 23.2.4.2 capacity:
|
|
using _Base::size;
|
|
using _Base::max_size;
|
|
|
|
#if __cplusplus >= 201103L
|
|
void
|
|
resize(size_type __sz)
|
|
{
|
|
bool __realloc = _M_requires_reallocation(__sz);
|
|
if (__sz < this->size())
|
|
this->_M_invalidate_after_nth(__sz);
|
|
_Base::resize(__sz);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
|
|
void
|
|
resize(size_type __sz, const _Tp& __c)
|
|
{
|
|
bool __realloc = _M_requires_reallocation(__sz);
|
|
if (__sz < this->size())
|
|
this->_M_invalidate_after_nth(__sz);
|
|
_Base::resize(__sz, __c);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
#else
|
|
void
|
|
resize(size_type __sz, _Tp __c = _Tp())
|
|
{
|
|
bool __realloc = _M_requires_reallocation(__sz);
|
|
if (__sz < this->size())
|
|
this->_M_invalidate_after_nth(__sz);
|
|
_Base::resize(__sz, __c);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
#endif
|
|
|
|
#if __cplusplus >= 201103L
|
|
void
|
|
shrink_to_fit()
|
|
{
|
|
if (_Base::_M_shrink_to_fit())
|
|
{
|
|
_M_guaranteed_capacity = _Base::capacity();
|
|
this->_M_invalidate_all();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
size_type
|
|
capacity() const _GLIBCXX_NOEXCEPT
|
|
{
|
|
#ifdef _GLIBCXX_DEBUG_PEDANTIC
|
|
return _M_guaranteed_capacity;
|
|
#else
|
|
return _Base::capacity();
|
|
#endif
|
|
}
|
|
|
|
using _Base::empty;
|
|
|
|
void
|
|
reserve(size_type __n)
|
|
{
|
|
bool __realloc = _M_requires_reallocation(__n);
|
|
_Base::reserve(__n);
|
|
if (__n > _M_guaranteed_capacity)
|
|
_M_guaranteed_capacity = __n;
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
}
|
|
|
|
// element access:
|
|
reference
|
|
operator[](size_type __n)
|
|
{
|
|
__glibcxx_check_subscript(__n);
|
|
return _M_base()[__n];
|
|
}
|
|
|
|
const_reference
|
|
operator[](size_type __n) const
|
|
{
|
|
__glibcxx_check_subscript(__n);
|
|
return _M_base()[__n];
|
|
}
|
|
|
|
using _Base::at;
|
|
|
|
reference
|
|
front()
|
|
{
|
|
__glibcxx_check_nonempty();
|
|
return _Base::front();
|
|
}
|
|
|
|
const_reference
|
|
front() const
|
|
{
|
|
__glibcxx_check_nonempty();
|
|
return _Base::front();
|
|
}
|
|
|
|
reference
|
|
back()
|
|
{
|
|
__glibcxx_check_nonempty();
|
|
return _Base::back();
|
|
}
|
|
|
|
const_reference
|
|
back() const
|
|
{
|
|
__glibcxx_check_nonempty();
|
|
return _Base::back();
|
|
}
|
|
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// DR 464. Suggestion for new member functions in standard containers.
|
|
using _Base::data;
|
|
|
|
// 23.2.4.3 modifiers:
|
|
void
|
|
push_back(const _Tp& __x)
|
|
{
|
|
bool __realloc = _M_requires_reallocation(this->size() + 1);
|
|
_Base::push_back(__x);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
template<typename _Up = _Tp>
|
|
typename __gnu_cxx::__enable_if<!std::__are_same<_Up, bool>::__value,
|
|
void>::__type
|
|
push_back(_Tp&& __x)
|
|
{ emplace_back(std::move(__x)); }
|
|
|
|
template<typename... _Args>
|
|
void
|
|
emplace_back(_Args&&... __args)
|
|
{
|
|
bool __realloc = _M_requires_reallocation(this->size() + 1);
|
|
_Base::emplace_back(std::forward<_Args>(__args)...);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
#endif
|
|
|
|
void
|
|
pop_back()
|
|
{
|
|
__glibcxx_check_nonempty();
|
|
this->_M_invalidate_if(_Equal(--_Base::end()));
|
|
_Base::pop_back();
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
template<typename... _Args>
|
|
iterator
|
|
emplace(iterator __position, _Args&&... __args)
|
|
{
|
|
__glibcxx_check_insert(__position);
|
|
bool __realloc = _M_requires_reallocation(this->size() + 1);
|
|
difference_type __offset = __position.base() - _Base::begin();
|
|
_Base_iterator __res = _Base::emplace(__position.base(),
|
|
std::forward<_Args>(__args)...);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
else
|
|
this->_M_invalidate_after_nth(__offset);
|
|
_M_update_guaranteed_capacity();
|
|
return iterator(__res, this);
|
|
}
|
|
#endif
|
|
|
|
iterator
|
|
insert(iterator __position, const _Tp& __x)
|
|
{
|
|
__glibcxx_check_insert(__position);
|
|
bool __realloc = _M_requires_reallocation(this->size() + 1);
|
|
difference_type __offset = __position.base() - _Base::begin();
|
|
_Base_iterator __res = _Base::insert(__position.base(), __x);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
else
|
|
this->_M_invalidate_after_nth(__offset);
|
|
_M_update_guaranteed_capacity();
|
|
return iterator(__res, this);
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
template<typename _Up = _Tp>
|
|
typename __gnu_cxx::__enable_if<!std::__are_same<_Up, bool>::__value,
|
|
iterator>::__type
|
|
insert(iterator __position, _Tp&& __x)
|
|
{ return emplace(__position, std::move(__x)); }
|
|
|
|
void
|
|
insert(iterator __position, initializer_list<value_type> __l)
|
|
{ this->insert(__position, __l.begin(), __l.end()); }
|
|
#endif
|
|
|
|
void
|
|
insert(iterator __position, size_type __n, const _Tp& __x)
|
|
{
|
|
__glibcxx_check_insert(__position);
|
|
bool __realloc = _M_requires_reallocation(this->size() + __n);
|
|
difference_type __offset = __position.base() - _Base::begin();
|
|
_Base::insert(__position.base(), __n, __x);
|
|
if (__realloc)
|
|
this->_M_invalidate_all();
|
|
else
|
|
this->_M_invalidate_after_nth(__offset);
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
template<class _InputIterator,
|
|
typename = std::_RequireInputIter<_InputIterator>>
|
|
#else
|
|
template<class _InputIterator>
|
|
#endif
|
|
void
|
|
insert(iterator __position,
|
|
_InputIterator __first, _InputIterator __last)
|
|
{
|
|
__glibcxx_check_insert_range(__position, __first, __last);
|
|
|
|
/* Hard to guess if invalidation will occur, because __last
|
|
- __first can't be calculated in all cases, so we just
|
|
punt here by checking if it did occur. */
|
|
_Base_iterator __old_begin = _M_base().begin();
|
|
difference_type __offset = __position.base() - _Base::begin();
|
|
_Base::insert(__position.base(), __gnu_debug::__base(__first),
|
|
__gnu_debug::__base(__last));
|
|
|
|
if (_M_base().begin() != __old_begin)
|
|
this->_M_invalidate_all();
|
|
else
|
|
this->_M_invalidate_after_nth(__offset);
|
|
_M_update_guaranteed_capacity();
|
|
}
|
|
|
|
iterator
|
|
erase(iterator __position)
|
|
{
|
|
__glibcxx_check_erase(__position);
|
|
difference_type __offset = __position.base() - _Base::begin();
|
|
_Base_iterator __res = _Base::erase(__position.base());
|
|
this->_M_invalidate_after_nth(__offset);
|
|
return iterator(__res, this);
|
|
}
|
|
|
|
iterator
|
|
erase(iterator __first, iterator __last)
|
|
{
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 151. can't currently clear() empty container
|
|
__glibcxx_check_erase_range(__first, __last);
|
|
|
|
if (__first.base() != __last.base())
|
|
{
|
|
difference_type __offset = __first.base() - _Base::begin();
|
|
_Base_iterator __res = _Base::erase(__first.base(),
|
|
__last.base());
|
|
this->_M_invalidate_after_nth(__offset);
|
|
return iterator(__res, this);
|
|
}
|
|
else
|
|
return __first;
|
|
}
|
|
|
|
void
|
|
swap(vector& __x)
|
|
#if __cplusplus >= 201103L
|
|
noexcept(_Alloc_traits::_S_nothrow_swap())
|
|
#endif
|
|
{
|
|
#if __cplusplus >= 201103L
|
|
if (!_Alloc_traits::_S_propagate_on_swap())
|
|
__glibcxx_check_equal_allocs(__x);
|
|
#endif
|
|
_Base::swap(__x);
|
|
this->_M_swap(__x);
|
|
std::swap(_M_guaranteed_capacity, __x._M_guaranteed_capacity);
|
|
}
|
|
|
|
void
|
|
clear() _GLIBCXX_NOEXCEPT
|
|
{
|
|
_Base::clear();
|
|
this->_M_invalidate_all();
|
|
_M_guaranteed_capacity = 0;
|
|
}
|
|
|
|
_Base&
|
|
_M_base() _GLIBCXX_NOEXCEPT { return *this; }
|
|
|
|
const _Base&
|
|
_M_base() const _GLIBCXX_NOEXCEPT { return *this; }
|
|
|
|
private:
|
|
size_type _M_guaranteed_capacity;
|
|
|
|
bool
|
|
_M_requires_reallocation(size_type __elements)
|
|
{ return __elements > this->capacity(); }
|
|
|
|
void
|
|
_M_update_guaranteed_capacity()
|
|
{
|
|
if (this->size() > _M_guaranteed_capacity)
|
|
_M_guaranteed_capacity = this->size();
|
|
}
|
|
|
|
void
|
|
_M_invalidate_after_nth(difference_type __n)
|
|
{
|
|
typedef __gnu_debug::_After_nth_from<_Base_const_iterator> _After_nth;
|
|
this->_M_invalidate_if(_After_nth(__n, _Base::begin()));
|
|
}
|
|
};
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator==(const vector<_Tp, _Alloc>& __lhs,
|
|
const vector<_Tp, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() == __rhs._M_base(); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator!=(const vector<_Tp, _Alloc>& __lhs,
|
|
const vector<_Tp, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() != __rhs._M_base(); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator<(const vector<_Tp, _Alloc>& __lhs,
|
|
const vector<_Tp, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() < __rhs._M_base(); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator<=(const vector<_Tp, _Alloc>& __lhs,
|
|
const vector<_Tp, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() <= __rhs._M_base(); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator>=(const vector<_Tp, _Alloc>& __lhs,
|
|
const vector<_Tp, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() >= __rhs._M_base(); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator>(const vector<_Tp, _Alloc>& __lhs,
|
|
const vector<_Tp, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() > __rhs._M_base(); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline void
|
|
swap(vector<_Tp, _Alloc>& __lhs, vector<_Tp, _Alloc>& __rhs)
|
|
{ __lhs.swap(__rhs); }
|
|
|
|
} // namespace __debug
|
|
|
|
#if __cplusplus >= 201103L
|
|
// DR 1182.
|
|
/// std::hash specialization for vector<bool>.
|
|
template<typename _Alloc>
|
|
struct hash<__debug::vector<bool, _Alloc>>
|
|
: public __hash_base<size_t, __debug::vector<bool, _Alloc>>
|
|
{
|
|
size_t
|
|
operator()(const __debug::vector<bool, _Alloc>& __b) const noexcept
|
|
{ return std::hash<_GLIBCXX_STD_C::vector<bool, _Alloc>>()
|
|
(__b._M_base()); }
|
|
};
|
|
#endif
|
|
|
|
} // namespace std
|
|
|
|
#endif
|