#include <bits/functexcept.h>
#include <bits/concept_check.h>
-namespace __gnu_norm
+namespace _GLIBCXX_STD
{
/**
* @if maint
*/
template<typename _Tp, typename _Alloc>
struct _Vector_base
- : public _Alloc
{
+ struct _Vector_impl
+ : public _Alloc {
+ _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)
+ { }
+ };
+
public:
typedef _Alloc allocator_type;
allocator_type
- get_allocator() const { return *static_cast<const _Alloc*>(this); }
+ get_allocator() const { return *static_cast<const _Alloc*>(&this->_M_impl); }
+
+ _Vector_base(const allocator_type& __a) : _M_impl(__a)
+ { }
- _Vector_base(const allocator_type& __a)
- : _Alloc(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0) { }
-
_Vector_base(size_t __n, const allocator_type& __a)
- : _Alloc(__a)
+ : _M_impl(__a)
{
- this->_M_start = this->_M_allocate(__n);
- this->_M_finish = this->_M_start;
- this->_M_end_of_storage = this->_M_start + __n;
+ this->_M_impl._M_start = this->_M_allocate(__n);
+ this->_M_impl._M_finish = this->_M_impl._M_start;
+ this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
}
-
- ~_Vector_base()
- { _M_deallocate(this->_M_start,
- this->_M_end_of_storage - this->_M_start); }
+
+ ~_Vector_base()
+ { _M_deallocate(this->_M_impl._M_start,
+ this->_M_impl._M_end_of_storage - this->_M_impl._M_start); }
public:
- _Tp* _M_start;
- _Tp* _M_finish;
- _Tp* _M_end_of_storage;
-
+ _Vector_impl _M_impl;
+
_Tp*
- _M_allocate(size_t __n) { return _Alloc::allocate(__n); }
-
+ _M_allocate(size_t __n) { return _M_impl.allocate(__n); }
+
void
_M_deallocate(_Tp* __p, size_t __n)
- { if (__p) _Alloc::deallocate(__p, __n); }
+ { if (__p) _M_impl.deallocate(__p, __n); }
};
-
-
+
+
/**
* @brief A standard container which offers fixed time access to
* individual elements in any order.
{
// Concept requirements.
__glibcxx_class_requires(_Tp, _SGIAssignableConcept)
-
- typedef _Vector_base<_Tp, _Alloc> _Base;
- typedef vector<_Tp, _Alloc> vector_type;
-
+
+ typedef _Vector_base<_Tp, _Alloc> _Base;
+ typedef vector<_Tp, _Alloc> vector_type;
+
public:
- typedef _Tp value_type;
- typedef value_type* pointer;
- typedef const value_type* const_pointer;
+ typedef _Tp value_type;
+ typedef value_type* pointer;
+ typedef const value_type* const_pointer;
typedef __gnu_cxx::__normal_iterator<pointer, vector_type> iterator;
typedef __gnu_cxx::__normal_iterator<const_pointer, vector_type>
const_iterator;
- typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
- typedef std::reverse_iterator<iterator> reverse_iterator;
- typedef value_type& reference;
- typedef const value_type& const_reference;
- typedef size_t size_type;
- typedef ptrdiff_t difference_type;
- typedef typename _Base::allocator_type allocator_type;
-
+ typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+ typedef std::reverse_iterator<iterator> reverse_iterator;
+ typedef value_type& reference;
+ typedef const value_type& const_reference;
+ typedef size_t size_type;
+ typedef ptrdiff_t difference_type;
+ typedef typename _Base::allocator_type allocator_type;
+
protected:
/** @if maint
* These two functions and three data members are all from the
*/
using _Base::_M_allocate;
using _Base::_M_deallocate;
- using _Base::_M_start;
- using _Base::_M_finish;
- using _Base::_M_end_of_storage;
-
+ using _Base::_M_impl;
+
public:
// [23.2.4.1] construct/copy/destroy
// (assign() and get_allocator() are also listed in this section)
explicit
vector(const allocator_type& __a = allocator_type())
: _Base(__a) { }
-
+
/**
* @brief Create a %vector with copies of an exemplar element.
* @param n The number of elements to initially create.
* @param value An element to copy.
- *
+ *
* This constructor fills the %vector with @a n copies of @a value.
*/
vector(size_type __n, const value_type& __value,
const allocator_type& __a = allocator_type())
: _Base(__n, __a)
- { this->_M_finish = std::uninitialized_fill_n(this->_M_start,
+ { this->_M_impl._M_finish = std::uninitialized_fill_n(this->_M_impl._M_start,
__n, __value); }
-
+
/**
* @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())
- { this->_M_finish = std::uninitialized_fill_n(this->_M_start,
+ { this->_M_impl._M_finish = std::uninitialized_fill_n(this->_M_impl._M_start,
__n, value_type()); }
-
+
/**
* @brief %Vector copy constructor.
* @param x A %vector of identical element and allocator types.
- *
+ *
* The newly-created %vector uses a copy of the allocation
* object used by @a x. All the elements of @a x are copied,
* but any extra memory in
*/
vector(const vector& __x)
: _Base(__x.size(), __x.get_allocator())
- { this->_M_finish = std::uninitialized_copy(__x.begin(), __x.end(),
- this->_M_start);
+ { this->_M_impl._M_finish = std::uninitialized_copy(__x.begin(), __x.end(),
+ this->_M_impl._M_start);
}
-
+
/**
* @brief Builds a %vector from a range.
* @param first An input iterator.
* @param last An input iterator.
- *
+ *
* Create a %vector consisting of copies of the elements from
* [first,last).
*
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
_M_initialize_dispatch(__first, __last, _Integral());
}
-
+
/**
* The dtor only erases the elements, and note that if the
* elements themselves are pointers, the pointed-to memory is
* not touched in any way. Managing the pointer is the user's
* responsibilty.
*/
- ~vector() { std::_Destroy(this->_M_start, this->_M_finish); }
-
+ ~vector() { std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish); }
+
/**
* @brief %Vector assignment operator.
* @param x A %vector of identical element and allocator types.
- *
+ *
* All the elements of @a x are copied, but any extra memory in
* @a x (for fast expansion) will not be copied. Unlike the
* copy constructor, the allocator object is not copied.
*/
vector&
operator=(const vector& __x);
-
+
/**
* @brief Assigns a given value to a %vector.
* @param n Number of elements to be assigned.
* the number of elements assigned. Old data may be lost.
*/
void
- assign(size_type __n, const value_type& __val)
+ assign(size_type __n, const value_type& __val)
{ _M_fill_assign(__n, __val); }
-
+
/**
* @brief Assigns a range to a %vector.
* @param first An input iterator.
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
_M_assign_dispatch(__first, __last, _Integral());
}
-
+
/// Get a copy of the memory allocation object.
using _Base::get_allocator;
-
+
// iterators
/**
* Returns a read/write iterator that points to the first
* element order.
*/
iterator
- begin() { return iterator (this->_M_start); }
-
+ begin() { return iterator (this->_M_impl._M_start); }
+
/**
* Returns a read-only (constant) iterator that points to the
* first element in the %vector. Iteration is done in ordinary
* element order.
*/
const_iterator
- begin() const { return const_iterator (this->_M_start); }
-
+ begin() const { return const_iterator (this->_M_impl._M_start); }
+
/**
* Returns a read/write iterator that points one past the last
* element in the %vector. Iteration is done in ordinary
* element order.
*/
iterator
- end() { return iterator (this->_M_finish); }
-
+ end() { return iterator (this->_M_impl._M_finish); }
+
/**
* Returns a read-only (constant) iterator that points one past
* the last element in the %vector. Iteration is done in
* ordinary element order.
*/
const_iterator
- end() const { return const_iterator (this->_M_finish); }
-
+ end() const { return const_iterator (this->_M_impl._M_finish); }
+
/**
* Returns a read/write reverse iterator that points to the
* last element in the %vector. Iteration is done in reverse
*/
reverse_iterator
rbegin() { return reverse_iterator(end()); }
-
+
/**
* Returns a read-only (constant) reverse iterator that points
* to the last element in the %vector. Iteration is done in
*/
const_reverse_iterator
rbegin() const { return const_reverse_iterator(end()); }
-
+
/**
* Returns a read/write reverse iterator that points to one
* before the first element in the %vector. Iteration is done
*/
reverse_iterator
rend() { return reverse_iterator(begin()); }
-
+
/**
* Returns a read-only (constant) reverse iterator that points
* to one before the first element in the %vector. Iteration
*/
const_reverse_iterator
rend() const { return const_reverse_iterator(begin()); }
-
+
// [23.2.4.2] capacity
/** Returns the number of elements in the %vector. */
size_type
size() const { return size_type(end() - begin()); }
-
+
/** Returns the size() of the largest possible %vector. */
size_type
max_size() const { return size_type(-1) / sizeof(value_type); }
-
+
/**
* @brief Resizes the %vector to the specified number of elements.
* @param new_size Number of elements the %vector should contain.
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.
*/
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_end_of_storage) - begin()); }
-
+ { return size_type(const_iterator(this->_M_impl._M_end_of_storage) - begin()); }
+
/**
* Returns true if the %vector is empty. (Thus begin() would
* equal end().)
*/
bool
empty() const { return begin() == end(); }
-
+
/**
* @brief Attempt to preallocate enough memory for specified number of
* elements.
*/
void
reserve(size_type __n);
-
+
// element access
/**
* @brief Subscript access to the data contained in the %vector.
*/
reference
operator[](size_type __n) { return *(begin() + __n); }
-
+
/**
* @brief Subscript access to the data contained in the %vector.
* @param n The index of the element for which data should be
*/
const_reference
operator[](size_type __n) const { return *(begin() + __n); }
-
+
protected:
/// @if maint Safety check used only from at(). @endif
void
if (__n >= this->size())
__throw_out_of_range(__N("vector::_M_range_check"));
}
-
+
public:
/**
* @brief Provides access to the data contained in the %vector.
*/
reference
at(size_type __n) { _M_range_check(__n); return (*this)[__n]; }
-
+
/**
* @brief Provides access to the data contained in the %vector.
* @param n The index of the element for which data should be
*/
const_reference
at(size_type __n) const { _M_range_check(__n); return (*this)[__n]; }
-
+
/**
* Returns a read/write reference to the data at the first
* element of the %vector.
*/
reference
front() { return *begin(); }
-
+
/**
* Returns a read-only (constant) reference to the data at the first
* element of the %vector.
*/
const_reference
front() const { return *begin(); }
-
+
/**
* Returns a read/write reference to the data at the last
* element of the %vector.
*/
reference
back() { return *(end() - 1); }
-
+
/**
* Returns a read-only (constant) reference to the data at the
* last element of the %vector.
*/
const_reference
back() const { return *(end() - 1); }
-
+
// [23.2.4.3] modifiers
/**
* @brief Add data to the end of the %vector.
void
push_back(const value_type& __x)
{
- if (this->_M_finish != this->_M_end_of_storage)
+ if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
{
- std::_Construct(this->_M_finish, __x);
- ++this->_M_finish;
+ std::_Construct(this->_M_impl._M_finish, __x);
+ ++this->_M_impl._M_finish;
}
else
_M_insert_aux(end(), __x);
}
-
+
/**
* @brief Removes last element.
*
void
pop_back()
{
- --this->_M_finish;
- std::_Destroy(this->_M_finish);
+ --this->_M_impl._M_finish;
+ std::_Destroy(this->_M_impl._M_finish);
}
-
+
/**
* @brief Inserts given value into %vector before specified iterator.
* @param position An iterator into the %vector.
void
insert(iterator __position, size_type __n, const value_type& __x)
{ _M_fill_insert(__position, __n, __x); }
-
+
/**
* @brief Inserts a range into the %vector.
* @param position An iterator into the %vector.
*/
template<typename _InputIterator>
void
- insert(iterator __position, _InputIterator __first,
+ insert(iterator __position, _InputIterator __first,
_InputIterator __last)
{
// Check whether it's an integral type. If so, it's not an iterator.
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
_M_insert_dispatch(__position, __first, __last, _Integral());
}
-
+
/**
* @brief Remove element at given position.
* @param position Iterator pointing to element to be erased.
*/
iterator
erase(iterator __position);
-
+
/**
* @brief Remove a range of elements.
* @param first Iterator pointing to the first element to be erased.
*/
iterator
erase(iterator __first, iterator __last);
-
+
/**
* @brief Swaps data with another %vector.
* @param x A %vector of the same element and allocator types.
void
swap(vector& __x)
{
- std::swap(this->_M_start, __x._M_start);
- std::swap(this->_M_finish, __x._M_finish);
- std::swap(this->_M_end_of_storage, __x._M_end_of_storage);
+ std::swap(this->_M_impl._M_start, __x._M_impl._M_start);
+ 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);
}
-
+
/**
* Erases all the elements. Note that this function only erases the
* elements, and that if the elements themselves are pointers, the
*/
void
clear() { erase(begin(), end()); }
-
+
protected:
/**
* @if maint
__throw_exception_again;
}
}
-
-
+
+
// Internal constructor functions follow.
-
+
// Called by the range constructor to implement [23.1.1]/9
template<typename _Integer>
void
_M_initialize_dispatch(_Integer __n, _Integer __value, __true_type)
{
- this->_M_start = _M_allocate(__n);
- this->_M_end_of_storage = this->_M_start + __n;
- this->_M_finish = std::uninitialized_fill_n(this->_M_start,
+ this->_M_impl._M_start = _M_allocate(__n);
+ this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
+ this->_M_impl._M_finish = std::uninitialized_fill_n(this->_M_impl._M_start,
__n, __value);
}
-
+
// Called by the range constructor to implement [23.1.1]/9
template<typename _InputIterator>
void
_IterCategory;
_M_range_initialize(__first, __last, _IterCategory());
}
-
+
// Called by the second initialize_dispatch above
template<typename _InputIterator>
void
for ( ; __first != __last; ++__first)
push_back(*__first);
}
-
+
// Called by the second initialize_dispatch above
template<typename _ForwardIterator>
- void
+ void
_M_range_initialize(_ForwardIterator __first,
_ForwardIterator __last, forward_iterator_tag)
{
size_type __n = std::distance(__first, __last);
- this->_M_start = this->_M_allocate(__n);
- this->_M_end_of_storage = this->_M_start + __n;
- this->_M_finish = std::uninitialized_copy(__first, __last,
- this->_M_start);
+ this->_M_impl._M_start = this->_M_allocate(__n);
+ this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
+ this->_M_impl._M_finish = std::uninitialized_copy(__first, __last,
+ this->_M_impl._M_start);
}
-
-
+
+
// Internal assign functions follow. The *_aux functions do the actual
// assignment work for the range versions.
-
+
// Called by the range assign to implement [23.1.1]/9
template<typename _Integer>
void
_M_fill_assign(static_cast<size_type>(__n),
static_cast<value_type>(__val));
}
-
+
// Called by the range assign to implement [23.1.1]/9
template<typename _InputIterator>
void
- _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
+ _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
__false_type)
{
typedef typename iterator_traits<_InputIterator>::iterator_category
_IterCategory;
_M_assign_aux(__first, __last, _IterCategory());
}
-
+
// Called by the second assign_dispatch above
template<typename _InputIterator>
- void
+ void
_M_assign_aux(_InputIterator __first, _InputIterator __last,
input_iterator_tag);
-
+
// Called by the second assign_dispatch above
template<typename _ForwardIterator>
- void
+ void
_M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
forward_iterator_tag);
-
+
// Called by assign(n,t), and the range assign when it turns out
// to be the same thing.
void
_M_fill_assign(size_type __n, const value_type& __val);
-
-
+
+
// Internal insert functions follow.
-
+
// Called by the range insert to implement [23.1.1]/9
template<typename _Integer>
void
_M_fill_insert(__pos, static_cast<size_type>(__n),
static_cast<value_type>(__val));
}
-
+
// Called by the range insert to implement [23.1.1]/9
template<typename _InputIterator>
void
_IterCategory;
_M_range_insert(__pos, __first, __last, _IterCategory());
}
-
+
// Called by the second insert_dispatch above
template<typename _InputIterator>
void
- _M_range_insert(iterator __pos, _InputIterator __first,
+ _M_range_insert(iterator __pos, _InputIterator __first,
_InputIterator __last, input_iterator_tag);
-
+
// Called by the second insert_dispatch above
template<typename _ForwardIterator>
void
- _M_range_insert(iterator __pos, _ForwardIterator __first,
+ _M_range_insert(iterator __pos, _ForwardIterator __first,
_ForwardIterator __last, forward_iterator_tag);
-
+
// Called by insert(p,n,x), and the range insert when it turns out to be
// the same thing.
void
_M_fill_insert(iterator __pos, size_type __n, const value_type& __x);
-
+
// Called by insert(p,x)
void
_M_insert_aux(iterator __position, const value_type& __x);
};
-
-
+
+
/**
* @brief Vector equality comparison.
* @param x A %vector.
return __x.size() == __y.size() &&
std::equal(__x.begin(), __x.end(), __y.begin());
}
-
+
/**
* @brief Vector ordering relation.
* @param x A %vector.
return std::lexicographical_compare(__x.begin(), __x.end(),
__y.begin(), __y.end());
}
-
+
/// Based on operator==
template<typename _Tp, typename _Alloc>
inline bool
operator!=(const vector<_Tp,_Alloc>& __x, const vector<_Tp,_Alloc>& __y)
{ return !(__x == __y); }
-
+
/// Based on operator<
template<typename _Tp, typename _Alloc>
inline bool
operator>(const vector<_Tp,_Alloc>& __x, const vector<_Tp,_Alloc>& __y)
{ return __y < __x; }
-
+
/// Based on operator<
template<typename _Tp, typename _Alloc>
inline bool
operator<=(const vector<_Tp,_Alloc>& __x, const vector<_Tp,_Alloc>& __y)
{ return !(__y < __x); }
-
+
/// Based on operator<
template<typename _Tp, typename _Alloc>
inline bool
operator>=(const vector<_Tp,_Alloc>& __x, const vector<_Tp,_Alloc>& __y)
{ return !(__x < __y); }
-
+
/// See std::vector::swap().
template<typename _Tp, typename _Alloc>
inline void
swap(vector<_Tp,_Alloc>& __x, vector<_Tp,_Alloc>& __y)
{ __x.swap(__y); }
-} // namespace __gnu_norm
+} // namespace std
#endif /* _VECTOR_H */
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