// Vector implementation -*- C++ -*-
-// Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
+// 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
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
#include <bits/functexcept.h>
#include <bits/concept_check.h>
-namespace _GLIBCXX_STD
-{
+_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD)
+
/**
* @if maint
* See bits/stl_deque.h's _Deque_base for an explanation.
template<typename _Tp, typename _Alloc>
struct _Vector_base
{
+ typedef typename _Alloc::template rebind<_Tp>::other _Tp_alloc_type;
+
struct _Vector_impl
- : public _Alloc
+ : public _Tp_alloc_type
{
_Tp* _M_start;
_Tp* _M_finish;
_Tp* _M_end_of_storage;
- _Vector_impl(_Alloc const& __a)
- : _Alloc(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
+ _Vector_impl(_Tp_alloc_type const& __a)
+ : _Tp_alloc_type(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
{ }
};
public:
typedef _Alloc allocator_type;
+ _Tp_alloc_type&
+ _M_get_Tp_allocator()
+ { return *static_cast<_Tp_alloc_type*>(&this->_M_impl); }
+
+ const _Tp_alloc_type&
+ _M_get_Tp_allocator() const
+ { return *static_cast<const _Tp_alloc_type*>(&this->_M_impl); }
+
allocator_type
get_allocator() const
- { return *static_cast<const _Alloc*>(&this->_M_impl); }
+ { return allocator_type(_M_get_Tp_allocator()); }
_Vector_base(const allocator_type& __a)
: _M_impl(__a)
class vector : protected _Vector_base<_Tp, _Alloc>
{
// Concept requirements.
+ typedef typename _Alloc::value_type _Alloc_value_type;
__glibcxx_class_requires(_Tp, _SGIAssignableConcept)
-
- typedef _Vector_base<_Tp, _Alloc> _Base;
- typedef vector<_Tp, _Alloc> vector_type;
+ __glibcxx_class_requires2(_Tp, _Alloc_value_type, _SameTypeConcept)
+
+ typedef _Vector_base<_Tp, _Alloc> _Base;
+ typedef vector<_Tp, _Alloc> vector_type;
+ typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
public:
typedef _Tp value_type;
- typedef typename _Alloc::pointer pointer;
- typedef typename _Alloc::const_pointer const_pointer;
- typedef typename _Alloc::reference reference;
- typedef typename _Alloc::const_reference const_reference;
+ typedef typename _Tp_alloc_type::pointer pointer;
+ typedef typename _Tp_alloc_type::const_pointer const_pointer;
+ typedef typename _Tp_alloc_type::reference reference;
+ typedef typename _Tp_alloc_type::const_reference const_reference;
typedef __gnu_cxx::__normal_iterator<pointer, vector_type> iterator;
typedef __gnu_cxx::__normal_iterator<const_pointer, vector_type>
const_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
- typedef typename _Base::allocator_type allocator_type;
+ typedef _Alloc allocator_type;
protected:
- /** @if maint
- * These two functions and three data members are all from the
- * base class. They should be pretty self-explanatory, as
- * %vector uses a simple contiguous allocation scheme. @endif
- */
using _Base::_M_allocate;
using _Base::_M_deallocate;
using _Base::_M_impl;
+ using _Base::_M_get_Tp_allocator;
public:
// [23.2.4.1] construct/copy/destroy
*
* This constructor fills the %vector with @a n copies of @a value.
*/
- vector(size_type __n, const value_type& __value,
+ explicit
+ vector(size_type __n, const value_type& __value = value_type(),
const allocator_type& __a = allocator_type())
: _Base(__n, __a)
{
std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value,
- this->get_allocator());
+ _M_get_Tp_allocator());
this->_M_impl._M_finish = this->_M_impl._M_start + __n;
}
/**
- * @brief Create a %vector with default elements.
- * @param n The number of elements to initially create.
- *
- * This constructor fills the %vector with @a n copies of a
- * default-constructed element.
- */
- explicit
- vector(size_type __n)
- : _Base(__n, allocator_type())
- {
- std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, value_type(),
- this->get_allocator());
- this->_M_impl._M_finish = this->_M_impl._M_start + __n;
- }
-
- /**
* @brief %Vector copy constructor.
* @param x A %vector of identical element and allocator types.
*
* @a x (for fast expansion) will not be copied.
*/
vector(const vector& __x)
- : _Base(__x.size(), __x.get_allocator())
+ : _Base(__x.size(), __x._M_get_Tp_allocator())
{ this->_M_impl._M_finish =
std::__uninitialized_copy_a(__x.begin(), __x.end(),
this->_M_impl._M_start,
- this->get_allocator());
+ _M_get_Tp_allocator());
}
/**
*/
~vector()
{ std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- this->get_allocator());
- }
+ _M_get_Tp_allocator()); }
/**
* @brief %Vector assignment operator.
*/
iterator
begin()
- { return iterator (this->_M_impl._M_start); }
+ { return iterator(this->_M_impl._M_start); }
/**
* Returns a read-only (constant) iterator that points to the
*/
const_iterator
begin() const
- { return const_iterator (this->_M_impl._M_start); }
+ { return const_iterator(this->_M_impl._M_start); }
/**
* Returns a read/write iterator that points one past the last
*/
iterator
end()
- { return iterator (this->_M_impl._M_finish); }
+ { return iterator(this->_M_impl._M_finish); }
/**
* Returns a read-only (constant) iterator that points one past
*/
const_iterator
end() const
- { return const_iterator (this->_M_impl._M_finish); }
+ { return const_iterator(this->_M_impl._M_finish); }
/**
* Returns a read/write reverse iterator that points to the
/** Returns the number of elements in the %vector. */
size_type
size() const
- { return size_type(end() - begin()); }
+ { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); }
/** Returns the size() of the largest possible %vector. */
size_type
* given data.
*/
void
- resize(size_type __new_size, const value_type& __x)
+ resize(size_type __new_size, value_type __x = value_type())
{
if (__new_size < size())
- erase(begin() + __new_size, end());
+ _M_erase_at_end(this->_M_impl._M_start + __new_size);
else
insert(end(), __new_size - size(), __x);
}
/**
- * @brief Resizes the %vector to the specified number of elements.
- * @param new_size Number of elements the %vector should contain.
- *
- * This function will resize the %vector to the specified
- * number of elements. If the number is smaller than the
- * %vector's current size the %vector is truncated, otherwise
- * the %vector is extended and new elements are
- * default-constructed.
- */
- void
- resize(size_type __new_size)
- { resize(__new_size, value_type()); }
-
- /**
* Returns the total number of elements that the %vector can
* hold before needing to allocate more memory.
*/
size_type
capacity() const
- { return size_type(const_iterator(this->_M_impl._M_end_of_storage)
- - begin()); }
+ { return size_type(this->_M_impl._M_end_of_storage
+ - this->_M_impl._M_start); }
/**
* Returns true if the %vector is empty. (Thus begin() would
*/
reference
operator[](size_type __n)
- { return *(begin() + __n); }
+ { return *(this->_M_impl._M_start + __n); }
/**
* @brief Subscript access to the data contained in the %vector.
*/
const_reference
operator[](size_type __n) const
- { return *(begin() + __n); }
+ { return *(this->_M_impl._M_start + __n); }
protected:
/// @if maint Safety check used only from at(). @endif
back() const
{ return *(end() - 1); }
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 464. Suggestion for new member functions in standard containers.
+ // data access
+ /**
+ * Returns a pointer such that [data(), data() + size()) is a valid
+ * range. For a non-empty %vector, data() == &front().
+ */
+ pointer
+ data()
+ { return pointer(this->_M_impl._M_start); }
+
+ const_pointer
+ data() const
+ { return const_pointer(this->_M_impl._M_start); }
+
// [23.2.4.3] modifiers
/**
* @brief Add data to the end of the %vector.
std::swap(this->_M_impl._M_finish, __x._M_impl._M_finish);
std::swap(this->_M_impl._M_end_of_storage,
__x._M_impl._M_end_of_storage);
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 431. Swapping containers with unequal allocators.
+ std::__alloc_swap<_Tp_alloc_type>::_S_do_it(_M_get_Tp_allocator(),
+ __x._M_get_Tp_allocator());
}
/**
*/
void
clear()
- { erase(begin(), end()); }
+ { _M_erase_at_end(this->_M_impl._M_start); }
protected:
/**
try
{
std::__uninitialized_copy_a(__first, __last, __result,
- this->get_allocator());
+ _M_get_Tp_allocator());
return __result;
}
catch(...)
this->_M_impl._M_start = _M_allocate(__n);
this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value,
- this->get_allocator());
+ _M_get_Tp_allocator());
this->_M_impl._M_finish = this->_M_impl._M_end_of_storage;
}
this->_M_impl._M_finish =
std::__uninitialized_copy_a(__first, __last,
this->_M_impl._M_start,
- this->get_allocator());
+ _M_get_Tp_allocator());
}
// Called by insert(p,x)
void
_M_insert_aux(iterator __position, const value_type& __x);
+
+ // Internal erase functions follow.
+
+ // Called by erase(q1,q2), clear(), resize(), _M_fill_assign,
+ // _M_assign_aux.
+ void
+ _M_erase_at_end(pointer __pos)
+ {
+ std::_Destroy(__pos, this->_M_impl._M_finish, _M_get_Tp_allocator());
+ this->_M_impl._M_finish = __pos;
+ }
};
inline void
swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y)
{ __x.swap(__y); }
-} // namespace std
+
+_GLIBCXX_END_NESTED_NAMESPACE
#endif /* _VECTOR_H */
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