// Debugging deque implementation -*- C++ -*-
// Copyright (C) 2003-2017 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/deque
* This file is a GNU debug extension to the Standard C++ Library.
*/
#ifndef _GLIBCXX_DEBUG_DEQUE
#define _GLIBCXX_DEBUG_DEQUE 1
#pragma GCC system_header
#include <deque>
#include <debug/safe_sequence.h>
#include <debug/safe_container.h>
#include <debug/safe_iterator.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
namespace __debug
{
/// Class std::deque with safety/checking/debug instrumentation.
template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
class deque
: public __gnu_debug::_Safe_container<
deque<_Tp, _Allocator>, _Allocator,
__gnu_debug::_Safe_sequence>,
public _GLIBCXX_STD_C::deque<_Tp, _Allocator>
{
typedef _GLIBCXX_STD_C::deque<_Tp, _Allocator> _Base;
typedef __gnu_debug::_Safe_container<
deque, _Allocator, __gnu_debug::_Safe_sequence> _Safe;
typedef typename _Base::const_iterator _Base_const_iterator;
typedef typename _Base::iterator _Base_iterator;
typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
public:
typedef typename _Base::reference reference;
typedef typename _Base::const_reference const_reference;
typedef __gnu_debug::_Safe_iterator<_Base_iterator, deque>
iterator;
typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, deque>
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;
// 23.2.1.1 construct/copy/destroy:
#if __cplusplus < 201103L
deque()
: _Base() { }
deque(const deque& __x)
: _Base(__x) { }
~deque() { }
#else
deque() = default;
deque(const deque&) = default;
deque(deque&&) = default;
deque(const deque& __d, const _Allocator& __a)
: _Base(__d, __a) { }
deque(deque&& __d, const _Allocator& __a)
: _Safe(std::move(__d)), _Base(std::move(__d), __a) { }
deque(initializer_list<value_type> __l,
const allocator_type& __a = allocator_type())
: _Base(__l, __a) { }
~deque() = default;
#endif
explicit
deque(const _Allocator& __a)
: _Base(__a) { }
#if __cplusplus >= 201103L
explicit
deque(size_type __n, const _Allocator& __a = _Allocator())
: _Base(__n, __a) { }
deque(size_type __n, const _Tp& __value,
const _Allocator& __a = _Allocator())
: _Base(__n, __value, __a) { }
#else
explicit
deque(size_type __n, const _Tp& __value = _Tp(),
const _Allocator& __a = _Allocator())
: _Base(__n, __value, __a) { }
#endif
#if __cplusplus >= 201103L
template<class _InputIterator,
typename = std::_RequireInputIter<_InputIterator>>
#else
template<class _InputIterator>
#endif
deque(_InputIterator __first, _InputIterator __last,
const _Allocator& __a = _Allocator())
: _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
__last)),
__gnu_debug::__base(__last), __a)
{ }
deque(const _Base& __x)
: _Base(__x) { }
#if __cplusplus < 201103L
deque&
operator=(const deque& __x)
{
this->_M_safe() = __x;
_M_base() = __x;
return *this;
}
#else
deque&
operator=(const deque&) = default;
deque&
operator=(deque&&) = default;
deque&
operator=(initializer_list<value_type> __l)
{
_M_base() = __l;
this->_M_invalidate_all();
return *this;
}
#endif
#if __cplusplus >= 201103L
template<class _InputIterator,
typename = std::_RequireInputIter<_InputIterator>>
#else
template<class _InputIterator>
#endif
void
assign(_InputIterator __first, _InputIterator __last)
{
typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
__glibcxx_check_valid_range2(__first, __last, __dist);
if (__dist.second >= __gnu_debug::__dp_sign)
_Base::assign(__gnu_debug::__unsafe(__first),
__gnu_debug::__unsafe(__last));
else
_Base::assign(__first, __last);
this->_M_invalidate_all();
}
void
assign(size_type __n, const _Tp& __t)
{
_Base::assign(__n, __t);
this->_M_invalidate_all();
}
#if __cplusplus >= 201103L
void
assign(initializer_list<value_type> __l)
{
_Base::assign(__l);
this->_M_invalidate_all();
}
#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
private:
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()));
}
public:
// 23.2.1.2 capacity:
using _Base::size;
using _Base::max_size;
#if __cplusplus >= 201103L
void
resize(size_type __sz)
{
bool __invalidate_all = __sz > this->size();
if (__sz < this->size())
this->_M_invalidate_after_nth(__sz);
_Base::resize(__sz);
if (__invalidate_all)
this->_M_invalidate_all();
}
void
resize(size_type __sz, const _Tp& __c)
{
bool __invalidate_all = __sz > this->size();
if (__sz < this->size())
this->_M_invalidate_after_nth(__sz);
_Base::resize(__sz, __c);
if (__invalidate_all)
this->_M_invalidate_all();
}
#else
void
resize(size_type __sz, _Tp __c = _Tp())
{
bool __invalidate_all = __sz > this->size();
if (__sz < this->size())
this->_M_invalidate_after_nth(__sz);
_Base::resize(__sz, __c);
if (__invalidate_all)
this->_M_invalidate_all();
}
#endif
#if __cplusplus >= 201103L
void
shrink_to_fit() noexcept
{
if (_Base::_M_shrink_to_fit())
this->_M_invalidate_all();
}
#endif
using _Base::empty;
// element access:
reference
operator[](size_type __n) _GLIBCXX_NOEXCEPT
{
__glibcxx_check_subscript(__n);
return _M_base()[__n];
}
const_reference
operator[](size_type __n) const _GLIBCXX_NOEXCEPT
{
__glibcxx_check_subscript(__n);
return _M_base()[__n];
}
using _Base::at;
reference
front() _GLIBCXX_NOEXCEPT
{
__glibcxx_check_nonempty();
return _Base::front();
}
const_reference
front() const _GLIBCXX_NOEXCEPT
{
__glibcxx_check_nonempty();
return _Base::front();
}
reference
back() _GLIBCXX_NOEXCEPT
{
__glibcxx_check_nonempty();
return _Base::back();
}
const_reference
back() const _GLIBCXX_NOEXCEPT
{
__glibcxx_check_nonempty();
return _Base::back();
}
// 23.2.1.3 modifiers:
void
push_front(const _Tp& __x)
{
_Base::push_front(__x);
this->_M_invalidate_all();
}
void
push_back(const _Tp& __x)
{
_Base::push_back(__x);
this->_M_invalidate_all();
}
#if __cplusplus >= 201103L
void
push_front(_Tp&& __x)
{ emplace_front(std::move(__x)); }
void
push_back(_Tp&& __x)
{ emplace_back(std::move(__x)); }
template<typename... _Args>
#if __cplusplus > 201402L
reference
#else
void
#endif
emplace_front(_Args&&... __args)
{
_Base::emplace_front(std::forward<_Args>(__args)...);
this->_M_invalidate_all();
#if __cplusplus > 201402L
return front();
#endif
}
template<typename... _Args>
#if __cplusplus > 201402L
reference
#else
void
#endif
emplace_back(_Args&&... __args)
{
_Base::emplace_back(std::forward<_Args>(__args)...);
this->_M_invalidate_all();
#if __cplusplus > 201402L
return back();
#endif
}
template<typename... _Args>
iterator
emplace(const_iterator __position, _Args&&... __args)
{
__glibcxx_check_insert(__position);
_Base_iterator __res = _Base::emplace(__position.base(),
std::forward<_Args>(__args)...);
this->_M_invalidate_all();
return iterator(__res, this);
}
#endif
iterator
#if __cplusplus >= 201103L
insert(const_iterator __position, const _Tp& __x)
#else
insert(iterator __position, const _Tp& __x)
#endif
{
__glibcxx_check_insert(__position);
_Base_iterator __res = _Base::insert(__position.base(), __x);
this->_M_invalidate_all();
return iterator(__res, this);
}
#if __cplusplus >= 201103L
iterator
insert(const_iterator __position, _Tp&& __x)
{ return emplace(__position, std::move(__x)); }
iterator
insert(const_iterator __position, initializer_list<value_type> __l)
{
__glibcxx_check_insert(__position);
_Base_iterator __res = _Base::insert(__position.base(), __l);
this->_M_invalidate_all();
return iterator(__res, this);
}
#endif
#if __cplusplus >= 201103L
iterator
insert(const_iterator __position, size_type __n, const _Tp& __x)
{
__glibcxx_check_insert(__position);
_Base_iterator __res = _Base::insert(__position.base(), __n, __x);
this->_M_invalidate_all();
return iterator(__res, this);
}
#else
void
insert(iterator __position, size_type __n, const _Tp& __x)
{
__glibcxx_check_insert(__position);
_Base::insert(__position.base(), __n, __x);
this->_M_invalidate_all();
}
#endif
#if __cplusplus >= 201103L
template<class _InputIterator,
typename = std::_RequireInputIter<_InputIterator>>
iterator
insert(const_iterator __position,
_InputIterator __first, _InputIterator __last)
{
typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
__glibcxx_check_insert_range(__position, __first, __last, __dist);
_Base_iterator __res;
if (__dist.second >= __gnu_debug::__dp_sign)
__res = _Base::insert(__position.base(),
__gnu_debug::__unsafe(__first),
__gnu_debug::__unsafe(__last));
else
__res = _Base::insert(__position.base(), __first, __last);
this->_M_invalidate_all();
return iterator(__res, this);
}
#else
template<class _InputIterator>
void
insert(iterator __position,
_InputIterator __first, _InputIterator __last)
{
typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
__glibcxx_check_insert_range(__position, __first, __last, __dist);
if (__dist.second >= __gnu_debug::__dp_sign)
_Base::insert(__position.base(),
__gnu_debug::__unsafe(__first),
__gnu_debug::__unsafe(__last));
else
_Base::insert(__position.base(), __first, __last);
this->_M_invalidate_all();
}
#endif
void
pop_front() _GLIBCXX_NOEXCEPT
{
__glibcxx_check_nonempty();
this->_M_invalidate_if(_Equal(_Base::begin()));
_Base::pop_front();
}
void
pop_back() _GLIBCXX_NOEXCEPT
{
__glibcxx_check_nonempty();
this->_M_invalidate_if(_Equal(--_Base::end()));
_Base::pop_back();
}
iterator
#if __cplusplus >= 201103L
erase(const_iterator __position)
#else
erase(iterator __position)
#endif
{
__glibcxx_check_erase(__position);
#if __cplusplus >= 201103L
_Base_const_iterator __victim = __position.base();
#else
_Base_iterator __victim = __position.base();
#endif
if (__victim == _Base::begin() || __victim == _Base::end() - 1)
{
this->_M_invalidate_if(_Equal(__victim));
return iterator(_Base::erase(__victim), this);
}
else
{
_Base_iterator __res = _Base::erase(__victim);
this->_M_invalidate_all();
return iterator(__res, this);
}
}
iterator
#if __cplusplus >= 201103L
erase(const_iterator __first, const_iterator __last)
#else
erase(iterator __first, iterator __last)
#endif
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 151. can't currently clear() empty container
__glibcxx_check_erase_range(__first, __last);
if (__first.base() == __last.base())
#if __cplusplus >= 201103L
return iterator(__first.base()._M_const_cast(), this);
#else
return __first;
#endif
else if (__first.base() == _Base::begin()
|| __last.base() == _Base::end())
{
this->_M_detach_singular();
for (_Base_const_iterator __position = __first.base();
__position != __last.base(); ++__position)
{
this->_M_invalidate_if(_Equal(__position));
}
__try
{
return iterator(_Base::erase(__first.base(), __last.base()),
this);
}
__catch(...)
{
this->_M_revalidate_singular();
__throw_exception_again;
}
}
else
{
_Base_iterator __res = _Base::erase(__first.base(),
__last.base());
this->_M_invalidate_all();
return iterator(__res, this);
}
}
void
swap(deque& __x)
_GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) )
{
_Safe::_M_swap(__x);
_Base::swap(__x);
}
void
clear() _GLIBCXX_NOEXCEPT
{
_Base::clear();
this->_M_invalidate_all();
}
_Base&
_M_base() _GLIBCXX_NOEXCEPT { return *this; }
const _Base&
_M_base() const _GLIBCXX_NOEXCEPT { return *this; }
};
template<typename _Tp, typename _Alloc>
inline bool
operator==(const deque<_Tp, _Alloc>& __lhs,
const deque<_Tp, _Alloc>& __rhs)
{ return __lhs._M_base() == __rhs._M_base(); }
template<typename _Tp, typename _Alloc>
inline bool
operator!=(const deque<_Tp, _Alloc>& __lhs,
const deque<_Tp, _Alloc>& __rhs)
{ return __lhs._M_base() != __rhs._M_base(); }
template<typename _Tp, typename _Alloc>
inline bool
operator<(const deque<_Tp, _Alloc>& __lhs,
const deque<_Tp, _Alloc>& __rhs)
{ return __lhs._M_base() < __rhs._M_base(); }
template<typename _Tp, typename _Alloc>
inline bool
operator<=(const deque<_Tp, _Alloc>& __lhs,
const deque<_Tp, _Alloc>& __rhs)
{ return __lhs._M_base() <= __rhs._M_base(); }
template<typename _Tp, typename _Alloc>
inline bool
operator>=(const deque<_Tp, _Alloc>& __lhs,
const deque<_Tp, _Alloc>& __rhs)
{ return __lhs._M_base() >= __rhs._M_base(); }
template<typename _Tp, typename _Alloc>
inline bool
operator>(const deque<_Tp, _Alloc>& __lhs,
const deque<_Tp, _Alloc>& __rhs)
{ return __lhs._M_base() > __rhs._M_base(); }
template<typename _Tp, typename _Alloc>
inline void
swap(deque<_Tp, _Alloc>& __lhs, deque<_Tp, _Alloc>& __rhs)
_GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs)))
{ __lhs.swap(__rhs); }
} // namespace __debug
} // namespace std
#endif