/// @if maint An actual node in the %list. @endif
template<typename _Tp>
struct _List_node : public _List_node_base
- {
- _Tp _M_data; ///< User's data.
- };
+ {
+ _Tp _M_data; ///< User's data.
+ };
/**
_List_node_base* _M_node;
_List_iterator_base(_List_node_base* __x)
- : _M_node(__x)
- { }
+ : _M_node(__x) { }
- _List_iterator_base()
- { }
+ _List_iterator_base() { }
/// Walk the %list forward.
void
*/
template<typename _Tp, typename _Ref, typename _Ptr>
struct _List_iterator : public _List_iterator_base
- {
- typedef _List_iterator<_Tp,_Tp&,_Tp*> iterator;
- typedef _List_iterator<_Tp,const _Tp&,const _Tp*> const_iterator;
- typedef _List_iterator<_Tp,_Ref,_Ptr> _Self;
-
- typedef _Tp value_type;
- typedef _Ptr pointer;
- typedef _Ref reference;
- typedef _List_node<_Tp> _Node;
-
- _List_iterator(_Node* __x)
- : _List_iterator_base(__x)
- { }
-
- _List_iterator()
- { }
-
- _List_iterator(const iterator& __x)
- : _List_iterator_base(__x._M_node)
- { }
-
- reference
- operator*() const
- { return static_cast<_Node*>(_M_node)->_M_data; }
- // Must downcast from List_node_base to _List_node to get to _M_data.
-
- pointer
- operator->() const
- { return &(operator*()); }
-
- _Self&
- operator++()
{
- this->_M_incr();
- return *this;
- }
-
- _Self
- operator++(int)
- {
- _Self __tmp = *this;
- this->_M_incr();
- return __tmp;
- }
-
- _Self&
- operator--()
- {
- this->_M_decr();
- return *this;
- }
-
- _Self
- operator--(int)
- {
- _Self __tmp = *this;
- this->_M_decr();
+ typedef _List_iterator<_Tp,_Tp&,_Tp*> iterator;
+ typedef _List_iterator<_Tp,const _Tp&,const _Tp*> const_iterator;
+ typedef _List_iterator<_Tp,_Ref,_Ptr> _Self;
+
+ typedef _Tp value_type;
+ typedef _Ptr pointer;
+ typedef _Ref reference;
+ typedef _List_node<_Tp> _Node;
+
+ _List_iterator(_Node* __x)
+ : _List_iterator_base(__x) { }
+
+ _List_iterator() { }
+
+ _List_iterator(const iterator& __x)
+ : _List_iterator_base(__x._M_node) { }
+
+ // Must downcast from List_node_base to _List_node to get to _M_data.
+ reference
+ operator*() const
+ { return static_cast<_Node*>(_M_node)->_M_data; }
+
+ pointer
+ operator->() const
+ { return &(operator*()); }
+
+ _Self&
+ operator++()
+ {
+ this->_M_incr();
+ return *this;
+ }
+
+ _Self
+ operator++(int)
+ {
+ _Self __tmp = *this;
+ this->_M_incr();
+ return __tmp;
+ }
+
+ _Self&
+ operator--()
+ {
+ this->_M_decr();
+ return *this;
+ }
+
+ _Self
+ operator--(int)
+ {
+ _Self __tmp = *this;
+ this->_M_decr();
return __tmp;
- }
- };
+ }
+ };
/**
* @if maint
* See bits/stl_deque.h's _Deque_base for an explanation.
* @endif
*/
- template <typename _Tp, typename _Alloc>
+ template<typename _Tp, typename _Alloc>
class _List_base
: public _Alloc::template rebind<_List_node<_Tp> >::other
- {
- protected:
- // NOTA BENE
- // The stored instance is not actually of "allocator_type"'s type.
- // Instead we rebind the type to Allocator<List_node<Tp>>, which
- // according to [20.1.5]/4 should probably be the same.
- // List_node<Tp> is not the same size as Tp (it's two pointers
- // larger), and specializations on Tp may go unused because
- // List_node<Tp> is being bound instead.
- //
- // We put this to the test in the constructors and in get_allocator,
- // where we use conversions between allocator_type and
- // _Node_Alloc_type. The conversion is required by table 32 in [20.1.5].
- typedef typename _Alloc::template rebind<_List_node<_Tp> >::other
+ {
+ protected:
+ // NOTA BENE
+ // The stored instance is not actually of "allocator_type"'s
+ // type. Instead we rebind the type to
+ // Allocator<List_node<Tp>>, which according to [20.1.5]/4
+ // should probably be the same. List_node<Tp> is not the same
+ // size as Tp (it's two pointers larger), and specializations on
+ // Tp may go unused because List_node<Tp> is being bound
+ // instead.
+ //
+ // We put this to the test in the constructors and in
+ // get_allocator, where we use conversions between
+ // allocator_type and _Node_Alloc_type. The conversion is
+ // required by table 32 in [20.1.5].
+ typedef typename _Alloc::template rebind<_List_node<_Tp> >::other
_Node_Alloc_type;
- _List_node<_Tp>*
- _M_get_node()
- { return _Node_Alloc_type::allocate(1); }
+ _List_node_base _M_node;
- void
- _M_put_node(_List_node<_Tp>* __p)
- { _Node_Alloc_type::deallocate(__p, 1); }
+ _List_node<_Tp>*
+ _M_get_node()
+ { return _Node_Alloc_type::allocate(1); }
+
+ void
+ _M_put_node(_List_node<_Tp>* __p)
+ { _Node_Alloc_type::deallocate(__p, 1); }
- _List_node_base _M_node;
public:
- typedef _Alloc allocator_type;
- allocator_type get_allocator() const
+ typedef _Alloc allocator_type;
- { return allocator_type(*static_cast<const _Node_Alloc_type*>(this)); }
+ allocator_type
+ get_allocator() const
+ { return allocator_type(*static_cast<const _Node_Alloc_type*>(this)); }
- _List_base(const allocator_type& __a)
- : _Node_Alloc_type(__a)
- {
- this->_M_node._M_next = &this->_M_node;
- this->_M_node._M_prev = &this->_M_node;
- }
-
- // This is what actually destroys the list.
- ~_List_base()
- {
- __clear();
- }
+ _List_base(const allocator_type& __a)
+ : _Node_Alloc_type(__a)
+ {
+ this->_M_node._M_next = &this->_M_node;
+ this->_M_node._M_prev = &this->_M_node;
+ }
- void
- __clear();
- };
+ // This is what actually destroys the list.
+ ~_List_base()
+ { _M_clear(); }
+
+ void
+ _M_clear();
+ };
/**
- * @brief A standard container with linear time access to elements, and
- * fixed time insertion/deletion at any point in the sequence.
+ * @brief A standard container with linear time access to elements,
+ * and fixed time insertion/deletion at any point in the sequence.
*
* @ingroup Containers
* @ingroup Sequences
*/
template<typename _Tp, typename _Alloc = allocator<_Tp> >
class list : protected _List_base<_Tp, _Alloc>
- {
- // concept requirements
- __glibcxx_class_requires(_Tp, _SGIAssignableConcept)
-
- typedef _List_base<_Tp, _Alloc> _Base;
-
- public:
- typedef _Tp value_type;
- typedef value_type* pointer;
- typedef const value_type* const_pointer;
- typedef _List_iterator<_Tp,_Tp&,_Tp*> iterator;
- typedef _List_iterator<_Tp,const _Tp&,const _Tp*> 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;
-
- protected:
- // Note that pointers-to-_Node's can be ctor-converted to iterator types.
- typedef _List_node<_Tp> _Node;
-
- /** @if maint
- * One data member plus two memory-handling functions. If the _Alloc
- * type requires separate instances, then one of those will also be
- * included, accumulated from the topmost parent.
- * @endif
- */
- using _Base::_M_node;
- using _Base::_M_put_node;
- using _Base::_M_get_node;
-
- /**
- * @if maint
- * @param x An instance of user data.
- *
- * Allocates space for a new node and constructs a copy of @a x in it.
- * @endif
- */
- _Node*
- _M_create_node(const value_type& __x)
{
- _Node* __p = this->_M_get_node();
- try {
- std::_Construct(&__p->_M_data, __x);
- }
- catch(...)
+ // concept requirements
+ __glibcxx_class_requires(_Tp, _SGIAssignableConcept)
+
+ typedef _List_base<_Tp, _Alloc> _Base;
+
+ public:
+ typedef _Tp value_type;
+ typedef value_type* pointer;
+ typedef const value_type* const_pointer;
+ typedef _List_iterator<_Tp,_Tp&,_Tp*> iterator;
+ typedef _List_iterator<_Tp,const _Tp&,const _Tp*> 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;
+
+ protected:
+ // Note that pointers-to-_Node's can be ctor-converted to
+ // iterator types.
+ typedef _List_node<_Tp> _Node;
+
+ /** @if maint
+ * One data member plus two memory-handling functions. If the
+ * _Alloc type requires separate instances, then one of those
+ * will also be included, accumulated from the topmost parent.
+ * @endif
+ */
+ using _Base::_M_node;
+ using _Base::_M_put_node;
+ using _Base::_M_get_node;
+
+ /**
+ * @if maint
+ * @param x An instance of user data.
+ *
+ * Allocates space for a new node and constructs a copy of @a x in it.
+ * @endif
+ */
+ _Node*
+ _M_create_node(const value_type& __x)
{
- _M_put_node(__p);
- __throw_exception_again;
+ _Node* __p = this->_M_get_node();
+ try
+ {
+ std::_Construct(&__p->_M_data, __x);
+ }
+ catch(...)
+ {
+ _M_put_node(__p);
+ __throw_exception_again;
+ }
+ return __p;
}
- return __p;
- }
- /**
- * @if maint
- * Allocates space for a new node and default-constructs a new instance
- * of @c value_type in it.
- * @endif
- */
- _Node*
- _M_create_node()
- {
- _Node* __p = this->_M_get_node();
- try {
- std::_Construct(&__p->_M_data);
- }
- catch(...)
+ /**
+ * @if maint
+ * Allocates space for a new node and default-constructs a new
+ * instance of @c value_type in it.
+ * @endif
+ */
+ _Node*
+ _M_create_node()
{
- _M_put_node(__p);
- __throw_exception_again;
+ _Node* __p = this->_M_get_node();
+ try
+ {
+ std::_Construct(&__p->_M_data);
+ }
+ catch(...)
+ {
+ _M_put_node(__p);
+ __throw_exception_again;
+ }
+ return __p;
}
- return __p;
- }
-
- public:
- // [23.2.2.1] construct/copy/destroy
- // (assign() and get_allocator() are also listed in this section)
- /**
- * @brief Default constructor creates no elements.
- */
- explicit
- list(const allocator_type& __a = allocator_type())
- : _Base(__a) { }
-
- /**
- * @brief Create a %list 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 %list with @a n copies of @a value.
- */
- list(size_type __n, const value_type& __value,
- const allocator_type& __a = allocator_type())
+
+ public:
+ // [23.2.2.1] construct/copy/destroy
+ // (assign() and get_allocator() are also listed in this section)
+ /**
+ * @brief Default constructor creates no elements.
+ */
+ explicit
+ list(const allocator_type& __a = allocator_type())
+ : _Base(__a) { }
+
+ /**
+ * @brief Create a %list 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 %list with @a n copies of @a value.
+ */
+ list(size_type __n, const value_type& __value,
+ const allocator_type& __a = allocator_type())
: _Base(__a)
{ this->insert(begin(), __n, __value); }
- /**
- * @brief Create a %list with default elements.
- * @param n The number of elements to initially create.
- *
- * This constructor fills the %list with @a n copies of a
- * default-constructed element.
- */
- explicit
- list(size_type __n)
+ /**
+ * @brief Create a %list with default elements.
+ * @param n The number of elements to initially create.
+ *
+ * This constructor fills the %list with @a n copies of a
+ * default-constructed element.
+ */
+ explicit
+ list(size_type __n)
: _Base(allocator_type())
{ this->insert(begin(), __n, value_type()); }
- /**
- * @brief %List copy constructor.
- * @param x A %list of identical element and allocator types.
- *
- * The newly-created %list uses a copy of the allocation object used
- * by @a x.
- */
- list(const list& __x)
+ /**
+ * @brief %List copy constructor.
+ * @param x A %list of identical element and allocator types.
+ *
+ * The newly-created %list uses a copy of the allocation object used
+ * by @a x.
+ */
+ list(const list& __x)
: _Base(__x.get_allocator())
{ this->insert(begin(), __x.begin(), __x.end()); }
-
- /**
- * @brief Builds a %list from a range.
- * @param first An input iterator.
- * @param last An input iterator.
- *
- * Create a %list consisting of copies of the elements from
- * [@a first,@a last). This is linear in N (where N is
- * distance(@a first,@a last)).
- *
- * @if maint
- * We don't need any dispatching tricks here, because insert does all of
- * that anyway.
- * @endif
- */
- template<typename _InputIterator>
- list(_InputIterator __first, _InputIterator __last,
- const allocator_type& __a = allocator_type())
- : _Base(__a)
- { this->insert(begin(), __first, __last); }
-
- /**
- * No explicit dtor needed as the _Base dtor takes care of
- * things. The _Base 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.
- */
-
- /**
- * @brief %List assignment operator.
- * @param x A %list of identical element and allocator types.
- *
- * All the elements of @a x are copied, but unlike the copy
- * constructor, the allocator object is not copied.
- */
- list&
- operator=(const list& __x);
-
- /**
- * @brief Assigns a given value to a %list.
- * @param n Number of elements to be assigned.
- * @param val Value to be assigned.
- *
- * This function fills a %list with @a n copies of the given
- * value. Note that the assignment completely changes the %list
- * and that the resulting %list's size is the same as the number
- * of elements assigned. Old data may be lost.
- */
- void
- assign(size_type __n, const value_type& __val)
- { _M_fill_assign(__n, __val); }
-
- /**
- * @brief Assigns a range to a %list.
- * @param first An input iterator.
- * @param last An input iterator.
- *
- * This function fills a %list with copies of the elements in the
- * range [@a first,@a last).
- *
- * Note that the assignment completely changes the %list and that the
- * resulting %list's size is the same as the number of elements assigned.
- * Old data may be lost.
- */
- template<typename _InputIterator>
+
+ /**
+ * @brief Builds a %list from a range.
+ * @param first An input iterator.
+ * @param last An input iterator.
+ *
+ * Create a %list consisting of copies of the elements from
+ * [@a first,@a last). This is linear in N (where N is
+ * distance(@a first,@a last)).
+ *
+ * @if maint
+ * We don't need any dispatching tricks here, because insert does all of
+ * that anyway.
+ * @endif
+ */
+ template<typename _InputIterator>
+ list(_InputIterator __first, _InputIterator __last,
+ const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ { this->insert(begin(), __first, __last); }
+
+ /**
+ * No explicit dtor needed as the _Base dtor takes care of
+ * things. The _Base 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.
+ */
+
+ /**
+ * @brief %List assignment operator.
+ * @param x A %list of identical element and allocator types.
+ *
+ * All the elements of @a x are copied, but unlike the copy
+ * constructor, the allocator object is not copied.
+ */
+ list&
+ operator=(const list& __x);
+
+ /**
+ * @brief Assigns a given value to a %list.
+ * @param n Number of elements to be assigned.
+ * @param val Value to be assigned.
+ *
+ * This function fills a %list with @a n copies of the given
+ * value. Note that the assignment completely changes the %list
+ * and that the resulting %list's size is the same as the number
+ * of elements assigned. Old data may be lost.
+ */
+ void
+ assign(size_type __n, const value_type& __val)
+ { _M_fill_assign(__n, __val); }
+
+ /**
+ * @brief Assigns a range to a %list.
+ * @param first An input iterator.
+ * @param last An input iterator.
+ *
+ * This function fills a %list with copies of the elements in the
+ * range [@a first,@a last).
+ *
+ * Note that the assignment completely changes the %list and
+ * that the resulting %list's size is the same as the number of
+ * elements assigned. Old data may be lost.
+ */
+ template<typename _InputIterator>
+ void
+ assign(_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_assign_dispatch(__first, __last, _Integral());
+ }
+
+ /// Get a copy of the memory allocation object.
+ allocator_type
+ get_allocator() const { return _Base::get_allocator(); }
+
+ // iterators
+ /**
+ * Returns a read/write iterator that points to the first element in the
+ * %list. Iteration is done in ordinary element order.
+ */
+ iterator
+ begin() { return static_cast<_Node*>(this->_M_node._M_next); }
+
+ /**
+ * Returns a read-only (constant) iterator that points to the
+ * first element in the %list. Iteration is done in ordinary
+ * element order.
+ */
+ const_iterator
+ begin() const { return static_cast<_Node*>(this->_M_node._M_next); }
+
+ /**
+ * Returns a read/write iterator that points one past the last
+ * element in the %list. Iteration is done in ordinary element
+ * order.
+ */
+ iterator
+ end() { return static_cast<_Node*>(&this->_M_node); }
+
+ /**
+ * Returns a read-only (constant) iterator that points one past
+ * the last element in the %list. Iteration is done in ordinary
+ * element order.
+ */
+ const_iterator
+ end() const
+ { return const_cast<_Node*>(static_cast<const _Node*>(&this->_M_node)); }
+
+ /**
+ * Returns a read/write reverse iterator that points to the last
+ * element in the %list. Iteration is done in reverse element
+ * order.
+ */
+ reverse_iterator
+ rbegin() { return reverse_iterator(end()); }
+
+ /**
+ * Returns a read-only (constant) reverse iterator that points to
+ * the last element in the %list. Iteration is done in reverse
+ * element order.
+ */
+ 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 %list. Iteration is done in
+ * reverse element order.
+ */
+ reverse_iterator
+ rend() { return reverse_iterator(begin()); }
+
+ /**
+ * Returns a read-only (constant) reverse iterator that points to one
+ * before the first element in the %list. Iteration is done in reverse
+ * element order.
+ */
+ const_reverse_iterator
+ rend() const
+ { return const_reverse_iterator(begin()); }
+
+ // [23.2.2.2] capacity
+ /**
+ * Returns true if the %list is empty. (Thus begin() would equal
+ * end().)
+ */
+ bool
+ empty() const { return this->_M_node._M_next == &this->_M_node; }
+
+ /** Returns the number of elements in the %list. */
+ size_type
+ size() const { return std::distance(begin(), end()); }
+
+ /** Returns the size() of the largest possible %list. */
+ size_type
+ max_size() const { return size_type(-1); }
+
+ /**
+ * @brief Resizes the %list to the specified number of elements.
+ * @param new_size Number of elements the %list should contain.
+ * @param x Data with which new elements should be populated.
+ *
+ * This function will %resize the %list to the specified number
+ * of elements. If the number is smaller than the %list's
+ * current size the %list is truncated, otherwise the %list is
+ * extended and new elements are populated with given data.
+ */
+ void
+ resize(size_type __new_size, const value_type& __x);
+
+ /**
+ * @brief Resizes the %list to the specified number of elements.
+ * @param new_size Number of elements the %list should contain.
+ *
+ * This function will resize the %list to the specified number of
+ * elements. If the number is smaller than the %list's current
+ * size the %list is truncated, otherwise the %list is extended
+ * and new elements are default-constructed.
+ */
+ void
+ resize(size_type __new_size) { this->resize(__new_size, value_type()); }
+
+ // element access
+ /**
+ * Returns a read/write reference to the data at the first
+ * element of the %list.
+ */
+ reference
+ front() { return *begin(); }
+
+ /**
+ * Returns a read-only (constant) reference to the data at the first
+ * element of the %list.
+ */
+ const_reference
+ front() const { return *begin(); }
+
+ /**
+ * Returns a read/write reference to the data at the last element
+ * of the %list.
+ */
+ reference
+ back() { return *(--end()); }
+
+ /**
+ * Returns a read-only (constant) reference to the data at the last
+ * element of the %list.
+ */
+ const_reference
+ back() const { return *(--end()); }
+
+ // [23.2.2.3] modifiers
+ /**
+ * @brief Add data to the front of the %list.
+ * @param x Data to be added.
+ *
+ * This is a typical stack operation. The function creates an
+ * element at the front of the %list and assigns the given data
+ * to it. Due to the nature of a %list this operation can be
+ * done in constant time, and does not invalidate iterators and
+ * references.
+ */
void
- assign(_InputIterator __first, _InputIterator __last)
+ push_front(const value_type& __x) { this->insert(begin(), __x); }
+
+ /**
+ * @brief Removes first element.
+ *
+ * This is a typical stack operation. It shrinks the %list by
+ * one. Due to the nature of a %list this operation can be done
+ * in constant time, and only invalidates iterators/references to
+ * the element being removed.
+ *
+ * Note that no data is returned, and if the first element's data
+ * is needed, it should be retrieved before pop_front() is
+ * called.
+ */
+ void
+ pop_front() { this->erase(begin()); }
+
+ /**
+ * @brief Add data to the end of the %list.
+ * @param x Data to be added.
+ *
+ * This is a typical stack operation. The function creates an
+ * element at the end of the %list and assigns the given data to
+ * it. Due to the nature of a %list this operation can be done
+ * in constant time, and does not invalidate iterators and
+ * references.
+ */
+ void
+ push_back(const value_type& __x) { this->insert(end(), __x); }
+
+ /**
+ * @brief Removes last element.
+ *
+ * This is a typical stack operation. It shrinks the %list by
+ * one. Due to the nature of a %list this operation can be done
+ * in constant time, and only invalidates iterators/references to
+ * the element being removed.
+ *
+ * Note that no data is returned, and if the last element's data
+ * is needed, it should be retrieved before pop_back() is called.
+ */
+ void
+ pop_back()
{
- // Check whether it's an integral type. If so, it's not an iterator.
- typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
- _M_assign_dispatch(__first, __last, _Integral());
+ iterator __tmp = end();
+ this->erase(--__tmp);
}
-
- /// Get a copy of the memory allocation object.
- allocator_type
- get_allocator() const { return _Base::get_allocator(); }
-
- // iterators
- /**
- * Returns a read/write iterator that points to the first element in the
- * %list. Iteration is done in ordinary element order.
- */
- iterator
- begin() { return static_cast<_Node*>(this->_M_node._M_next); }
-
- /**
- * Returns a read-only (constant) iterator that points to the
- * first element in the %list. Iteration is done in ordinary
- * element order.
- */
- const_iterator
- begin() const { return static_cast<_Node*>(this->_M_node._M_next); }
-
- /**
- * Returns a read/write iterator that points one past the last
- * element in the %list. Iteration is done in ordinary element
- * order.
- */
- iterator
- end() { return static_cast<_Node*>(&this->_M_node); }
-
- /**
- * Returns a read-only (constant) iterator that points one past
- * the last element in the %list. Iteration is done in ordinary
- * element order.
- */
- const_iterator
- end() const
- { return const_cast<_Node *>(static_cast<const _Node*>(&this->_M_node)); }
-
- /**
- * Returns a read/write reverse iterator that points to the last
- * element in the %list. Iteration is done in reverse element
- * order.
- */
- reverse_iterator
- rbegin() { return reverse_iterator(end()); }
-
- /**
- * Returns a read-only (constant) reverse iterator that points to
- * the last element in the %list. Iteration is done in reverse
- * element order.
- */
- 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 %list. Iteration is done in
- * reverse element order.
- */
- reverse_iterator
- rend() { return reverse_iterator(begin()); }
-
- /**
- * Returns a read-only (constant) reverse iterator that points to one
- * before the first element in the %list. Iteration is done in reverse
- * element order.
- */
- const_reverse_iterator
- rend() const
- { return const_reverse_iterator(begin()); }
-
- // [23.2.2.2] capacity
- /**
- * Returns true if the %list is empty. (Thus begin() would equal
- * end().)
- */
- bool
- empty() const { return this->_M_node._M_next == &this->_M_node; }
-
- /** Returns the number of elements in the %list. */
- size_type
- size() const { return std::distance(begin(), end()); }
-
- /** Returns the size() of the largest possible %list. */
- size_type
- max_size() const { return size_type(-1); }
-
- /**
- * @brief Resizes the %list to the specified number of elements.
- * @param new_size Number of elements the %list should contain.
- * @param x Data with which new elements should be populated.
- *
- * This function will %resize the %list to the specified number
- * of elements. If the number is smaller than the %list's
- * current size the %list is truncated, otherwise the %list is
- * extended and new elements are populated with given data.
- */
- void
- resize(size_type __new_size, const value_type& __x);
-
- /**
- * @brief Resizes the %list to the specified number of elements.
- * @param new_size Number of elements the %list should contain.
- *
- * This function will resize the %list to the specified number of
- * elements. If the number is smaller than the %list's current
- * size the %list is truncated, otherwise the %list is extended
- * and new elements are default-constructed.
- */
- void
- resize(size_type __new_size) { this->resize(__new_size, value_type()); }
-
- // element access
- /**
- * Returns a read/write reference to the data at the first element of the
- * %list.
- */
- reference
- front() { return *begin(); }
-
- /**
- * Returns a read-only (constant) reference to the data at the first
- * element of the %list.
- */
- const_reference
- front() const { return *begin(); }
-
- /**
- * Returns a read/write reference to the data at the last element
- * of the %list.
- */
- reference
- back() { return *(--end()); }
-
- /**
- * Returns a read-only (constant) reference to the data at the last
- * element of the %list.
- */
- const_reference
- back() const { return *(--end()); }
-
- // [23.2.2.3] modifiers
- /**
- * @brief Add data to the front of the %list.
- * @param x Data to be added.
- *
- * This is a typical stack operation. The function creates an
- * element at the front of the %list and assigns the given data
- * to it. Due to the nature of a %list this operation can be
- * done in constant time, and does not invalidate iterators and
- * references.
- */
- void
- push_front(const value_type& __x) { this->insert(begin(), __x); }
-
- /**
- * @brief Removes first element.
- *
- * This is a typical stack operation. It shrinks the %list by
- * one. Due to the nature of a %list this operation can be done
- * in constant time, and only invalidates iterators/references to
- * the element being removed.
- *
- * Note that no data is returned, and if the first element's data
- * is needed, it should be retrieved before pop_front() is
- * called.
- */
- void
- pop_front() { this->erase(begin()); }
-
- /**
- * @brief Add data to the end of the %list.
- * @param x Data to be added.
- *
- * This is a typical stack operation. The function creates an
- * element at the end of the %list and assigns the given data to
- * it. Due to the nature of a %list this operation can be done
- * in constant time, and does not invalidate iterators and
- * references.
- */
- void
- push_back(const value_type& __x) { this->insert(end(), __x); }
-
- /**
- * @brief Removes last element.
- *
- * This is a typical stack operation. It shrinks the %list by
- * one. Due to the nature of a %list this operation can be done
- * in constant time, and only invalidates iterators/references to
- * the element being removed.
- *
- * Note that no data is returned, and if the last element's data
- * is needed, it should be retrieved before pop_back() is called.
- */
- void
- pop_back()
- {
- iterator __tmp = end();
- this->erase(--__tmp);
- }
-
- /**
- * @brief Inserts given value into %list before specified iterator.
- * @param position An iterator into the %list.
- * @param x Data to be inserted.
- * @return An iterator that points to the inserted data.
- *
- * This function will insert a copy of the given value before the
- * specified location. Due to the nature of a %list this
- * operation can be done in constant time, and does not
- * invalidate iterators and references.
- */
- iterator
- insert(iterator __position, const value_type& __x);
-
- /**
- * @brief Inserts a number of copies of given data into the %list.
- * @param position An iterator into the %list.
- * @param n Number of elements to be inserted.
- * @param x Data to be inserted.
- *
- * This function will insert a specified number of copies of the
- * given data before the location specified by @a position.
- *
- * Due to the nature of a %list this operation can be done in
- * constant time, and does not invalidate iterators and
- * references.
- */
- void
- insert(iterator __position, size_type __n, const value_type& __x)
- { _M_fill_insert(__position, __n, __x); }
-
- /**
- * @brief Inserts a range into the %list.
- * @param position An iterator into the %list.
- * @param first An input iterator.
- * @param last An input iterator.
- *
- * This function will insert copies of the data in the range [@a
- * first,@a last) into the %list before the location specified by
- * @a position.
- *
- * Due to the nature of a %list this operation can be done in constant
- * time, and does not invalidate iterators and references.
- */
- template<typename _InputIterator>
+
+ /**
+ * @brief Inserts given value into %list before specified iterator.
+ * @param position An iterator into the %list.
+ * @param x Data to be inserted.
+ * @return An iterator that points to the inserted data.
+ *
+ * This function will insert a copy of the given value before
+ * the specified location. Due to the nature of a %list this
+ * operation can be done in constant time, and does not
+ * invalidate iterators and references.
+ */
+ iterator
+ insert(iterator __position, const value_type& __x);
+
+ /**
+ * @brief Inserts a number of copies of given data into the %list.
+ * @param position An iterator into the %list.
+ * @param n Number of elements to be inserted.
+ * @param x Data to be inserted.
+ *
+ * This function will insert a specified number of copies of the
+ * given data before the location specified by @a position.
+ *
+ * Due to the nature of a %list this operation can be done in
+ * constant time, and does not invalidate iterators and
+ * references.
+ */
void
- insert(iterator __position, _InputIterator __first,
- _InputIterator __last)
+ insert(iterator __position, size_type __n, const value_type& __x)
+ { _M_fill_insert(__position, __n, __x); }
+
+ /**
+ * @brief Inserts a range into the %list.
+ * @param position An iterator into the %list.
+ * @param first An input iterator.
+ * @param last An input iterator.
+ *
+ * This function will insert copies of the data in the range [@a
+ * first,@a last) into the %list before the location specified by
+ * @a position.
+ *
+ * Due to the nature of a %list this operation can be done in
+ * constant time, and does not invalidate iterators and
+ * references.
+ */
+ template<typename _InputIterator>
+ void
+ 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.
+ * @return An iterator pointing to the next element (or end()).
+ *
+ * This function will erase the element at the given position and thus
+ * shorten the %list by one.
+ *
+ * Due to the nature of a %list this operation can be done in
+ * constant time, and only invalidates iterators/references to
+ * the element being removed. The user is also cautioned that
+ * this function only erases the element, and that if the element
+ * is itself a pointer, the pointed-to memory is not touched in
+ * any way. Managing the pointer is the user's responsibilty.
+ */
+ iterator
+ erase(iterator __position);
+
+ /**
+ * @brief Remove a range of elements.
+ * @param first Iterator pointing to the first element to be erased.
+ * @param last Iterator pointing to one past the last element to be
+ * erased.
+ * @return An iterator pointing to the element pointed to by @a last
+ * prior to erasing (or end()).
+ *
+ * This function will erase the elements in the range @a
+ * [first,last) and shorten the %list accordingly.
+ *
+ * Due to the nature of a %list this operation can be done in
+ * constant time, and only invalidates iterators/references to
+ * the element being removed. The user is also cautioned that
+ * this function only erases the elements, and 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.
+ */
+ iterator
+ erase(iterator __first, iterator __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());
+ while (__first != __last)
+ erase(__first++);
+ return __last;
}
- /**
- * @brief Remove element at given position.
- * @param position Iterator pointing to element to be erased.
- * @return An iterator pointing to the next element (or end()).
- *
- * This function will erase the element at the given position and thus
- * shorten the %list by one.
- *
- * Due to the nature of a %list this operation can be done in
- * constant time, and only invalidates iterators/references to
- * the element being removed. The user is also cautioned that
- * this function only erases the element, and that if the element
- * is itself a pointer, the pointed-to memory is not touched in
- * any way. Managing the pointer is the user's responsibilty.
- */
- iterator
- erase(iterator __position);
-
- /**
- * @brief Remove a range of elements.
- * @param first Iterator pointing to the first element to be erased.
- * @param last Iterator pointing to one past the last element to be
- * erased.
- * @return An iterator pointing to the element pointed to by @a last
- * prior to erasing (or end()).
- *
- * This function will erase the elements in the range @a
- * [first,last) and shorten the %list accordingly.
- *
- * Due to the nature of a %list this operation can be done in
- * constant time, and only invalidates iterators/references to
- * the element being removed. The user is also cautioned that
- * this function only erases the elements, and 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.
- */
- iterator
- erase(iterator __first, iterator __last)
- {
- while (__first != __last)
- erase(__first++);
- return __last;
- }
-
- /**
- * @brief Swaps data with another %list.
- * @param x A %list of the same element and allocator types.
- *
- * This exchanges the elements between two lists in constant
- * time. Note that the global std::swap() function is
- * specialized such that std::swap(l1,l2) will feed to this
- * function.
- */
- void
- swap(list& __x);
-
- /**
- * Erases all the elements. Note that this function only erases
- * the elements, and 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.
- */
- void
- clear() { _Base::__clear(); }
-
- // [23.2.2.4] list operations
- /**
- * @brief Insert contents of another %list.
- * @param position Iterator referencing the element to insert before.
- * @param x Source list.
- *
- * The elements of @a x are inserted in constant time in front of
- * the element referenced by @a position. @a x becomes an empty
- * list.
- */
- void
- splice(iterator __position, list& __x)
- {
- if (!__x.empty())
- this->_M_transfer(__position, __x.begin(), __x.end());
- }
-
- /**
- * @brief Insert element from another %list.
- * @param position Iterator referencing the element to insert before.
- * @param x Source list.
- * @param i Iterator referencing the element to move.
- *
- * Removes the element in list @a x referenced by @a i and
- * inserts it into the current list before @a position.
- */
- void
- splice(iterator __position, list&, iterator __i)
- {
- iterator __j = __i;
- ++__j;
- if (__position == __i || __position == __j) return;
- this->_M_transfer(__position, __i, __j);
- }
-
- /**
- * @brief Insert range from another %list.
- * @param position Iterator referencing the element to insert before.
- * @param x Source list.
- * @param first Iterator referencing the start of range in x.
- * @param last Iterator referencing the end of range in x.
- *
- * Removes elements in the range [first,last) and inserts them
- * before @a position in constant time.
- *
- * Undefined if @a position is in [first,last).
- */
- void
- splice(iterator __position, list&, iterator __first, iterator __last)
- {
- if (__first != __last)
- this->_M_transfer(__position, __first, __last);
- }
-
- /**
- * @brief Remove all elements equal to value.
- * @param value The value to remove.
- *
- * Removes every element in the list equal to @a value.
- * Remaining elements stay in list order. Note that this
- * function only erases the elements, and 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.
- */
- void
- remove(const _Tp& __value);
-
- /**
- * @brief Remove all elements satisfying a predicate.
- * @param Predicate Unary predicate function or object.
- *
- * Removes every element in the list for which the predicate
- * returns true. Remaining elements stay in list order. Note
- * that this function only erases the elements, and 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.
- */
- template<typename _Predicate>
+ /**
+ * @brief Swaps data with another %list.
+ * @param x A %list of the same element and allocator types.
+ *
+ * This exchanges the elements between two lists in constant
+ * time. Note that the global std::swap() function is
+ * specialized such that std::swap(l1,l2) will feed to this
+ * function.
+ */
void
- remove_if(_Predicate);
-
- /**
- * @brief Remove consecutive duplicate elements.
- *
- * For each consecutive set of elements with the same value,
- * remove all but the first one. Remaining elements stay in list
- * order. Note that this function only erases the elements, and
- * 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.
- */
- void
- unique();
-
- /**
- * @brief Remove consecutive elements satisfying a predicate.
- * @param BinaryPredicate Binary predicate function or object.
- *
- * For each consecutive set of elements [first,last) that satisfy
- * predicate(first,i) where i is an iterator in [first,last),
- * remove all but the first one. Remaining elements stay in list
- * order. Note that this function only erases the elements, and
- * 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.
- */
- template<typename _BinaryPredicate>
+ swap(list& __x);
+
+ /**
+ * Erases all the elements. Note that this function only erases
+ * the elements, and 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.
+ */
void
- unique(_BinaryPredicate);
-
- /**
- * @brief Merge sorted lists.
- * @param x Sorted list to merge.
- *
- * Assumes that both @a x and this list are sorted according to
- * operator<(). Merges elements of @a x into this list in sorted
- * order, leaving @a x empty when complete. Elements in this
- * list precede elements in @a x that are equal.
- */
- void
- merge(list& __x);
-
- /**
- * @brief Merge sorted lists according to comparison function.
- * @param x Sorted list to merge.
- * @param StrictWeakOrdering Comparison function definining sort order.
- *
- * Assumes that both @a x and this list are sorted according to
- * StrictWeakOrdering. Merges elements of @a x into this list in
- * sorted order, leaving @a x empty when complete. Elements in
- * this list precede elements in @a x that are equivalent
- * according to StrictWeakOrdering().
- */
- template<typename _StrictWeakOrdering>
+ clear() { _Base::_M_clear(); }
+
+ // [23.2.2.4] list operations
+ /**
+ * @brief Insert contents of another %list.
+ * @param position Iterator referencing the element to insert before.
+ * @param x Source list.
+ *
+ * The elements of @a x are inserted in constant time in front of
+ * the element referenced by @a position. @a x becomes an empty
+ * list.
+ */
void
- merge(list&, _StrictWeakOrdering);
-
- /**
- * @brief Reverse the elements in list.
- *
- * Reverse the order of elements in the list in linear time.
- */
- void
- reverse() { __List_base_reverse(&this->_M_node); }
-
- /**
- * @brief Sort the elements.
- *
- * Sorts the elements of this list in NlogN time. Equivalent
- * elements remain in list order.
- */
- void
- sort();
+ splice(iterator __position, list& __x)
+ {
+ if (!__x.empty())
+ this->_M_transfer(__position, __x.begin(), __x.end());
+ }
- /**
- * @brief Sort the elements according to comparison function.
- *
- * Sorts the elements of this list in NlogN time. Equivalent
- * elements remain in list order.
- */
- template<typename _StrictWeakOrdering>
+ /**
+ * @brief Insert element from another %list.
+ * @param position Iterator referencing the element to insert before.
+ * @param x Source list.
+ * @param i Iterator referencing the element to move.
+ *
+ * Removes the element in list @a x referenced by @a i and
+ * inserts it into the current list before @a position.
+ */
void
- sort(_StrictWeakOrdering);
-
- protected:
- // Internal assign functions follow.
+ splice(iterator __position, list&, iterator __i)
+ {
+ iterator __j = __i;
+ ++__j;
+ if (__position == __i || __position == __j) return;
+ this->_M_transfer(__position, __i, __j);
+ }
- // Called by the range assign to implement [23.1.1]/9
- template<typename _Integer>
+ /**
+ * @brief Insert range from another %list.
+ * @param position Iterator referencing the element to insert before.
+ * @param x Source list.
+ * @param first Iterator referencing the start of range in x.
+ * @param last Iterator referencing the end of range in x.
+ *
+ * Removes elements in the range [first,last) and inserts them
+ * before @a position in constant time.
+ *
+ * Undefined if @a position is in [first,last).
+ */
void
- _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
+ splice(iterator __position, list&, iterator __first, iterator __last)
{
- _M_fill_assign(static_cast<size_type>(__n),
- static_cast<value_type>(__val));
+ if (__first != __last)
+ this->_M_transfer(__position, __first, __last);
}
- // Called by the range assign to implement [23.1.1]/9
- template<typename _InputIterator>
+ /**
+ * @brief Remove all elements equal to value.
+ * @param value The value to remove.
+ *
+ * Removes every element in the list equal to @a value.
+ * Remaining elements stay in list order. Note that this
+ * function only erases the elements, and 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.
+ */
void
- _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
- __false_type);
-
- // 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.
+ remove(const _Tp& __value);
+
+ /**
+ * @brief Remove all elements satisfying a predicate.
+ * @param Predicate Unary predicate function or object.
+ *
+ * Removes every element in the list for which the predicate
+ * returns true. Remaining elements stay in list order. Note
+ * that this function only erases the elements, and 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.
+ */
+ template<typename _Predicate>
+ void
+ remove_if(_Predicate);
- // Called by the range insert to implement [23.1.1]/9
- template<typename _Integer>
+ /**
+ * @brief Remove consecutive duplicate elements.
+ *
+ * For each consecutive set of elements with the same value,
+ * remove all but the first one. Remaining elements stay in
+ * list order. Note that this function only erases the
+ * elements, and 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.
+ */
+ void
+ unique();
+
+ /**
+ * @brief Remove consecutive elements satisfying a predicate.
+ * @param BinaryPredicate Binary predicate function or object.
+ *
+ * For each consecutive set of elements [first,last) that
+ * satisfy predicate(first,i) where i is an iterator in
+ * [first,last), remove all but the first one. Remaining
+ * elements stay in list order. Note that this function only
+ * erases the elements, and 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.
+ */
+ template<typename _BinaryPredicate>
+ void
+ unique(_BinaryPredicate);
+
+ /**
+ * @brief Merge sorted lists.
+ * @param x Sorted list to merge.
+ *
+ * Assumes that both @a x and this list are sorted according to
+ * operator<(). Merges elements of @a x into this list in
+ * sorted order, leaving @a x empty when complete. Elements in
+ * this list precede elements in @a x that are equal.
+ */
+ void
+ merge(list& __x);
+
+ /**
+ * @brief Merge sorted lists according to comparison function.
+ * @param x Sorted list to merge.
+ * @param StrictWeakOrdering Comparison function definining
+ * sort order.
+ *
+ * Assumes that both @a x and this list are sorted according to
+ * StrictWeakOrdering. Merges elements of @a x into this list
+ * in sorted order, leaving @a x empty when complete. Elements
+ * in this list precede elements in @a x that are equivalent
+ * according to StrictWeakOrdering().
+ */
+ template<typename _StrictWeakOrdering>
+ void
+ merge(list&, _StrictWeakOrdering);
+
+ /**
+ * @brief Reverse the elements in list.
+ *
+ * Reverse the order of elements in the list in linear time.
+ */
+ void
+ reverse() { __List_base_reverse(&this->_M_node); }
+
+ /**
+ * @brief Sort the elements.
+ *
+ * Sorts the elements of this list in NlogN time. Equivalent
+ * elements remain in list order.
+ */
+ void
+ sort();
+
+ /**
+ * @brief Sort the elements according to comparison function.
+ *
+ * Sorts the elements of this list in NlogN time. Equivalent
+ * elements remain in list order.
+ */
+ template<typename _StrictWeakOrdering>
+ void
+ sort(_StrictWeakOrdering);
+
+ protected:
+ // Internal assign functions follow.
+
+ // Called by the range assign to implement [23.1.1]/9
+ template<typename _Integer>
+ void
+ _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
+ {
+ _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,
+ __false_type);
+
+ // Called by assign(n,t), and the range assign when it turns out
+ // to be the same thing.
void
- _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x,
- __true_type)
+ _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_insert_dispatch(iterator __pos, _Integer __n, _Integer __x,
+ __true_type)
+ {
+ _M_fill_insert(__pos, static_cast<size_type>(__n),
+ static_cast<value_type>(__x));
+ }
+
+ // Called by the range insert to implement [23.1.1]/9
+ template<typename _InputIterator>
+ void
+ _M_insert_dispatch(iterator __pos,
+ _InputIterator __first, _InputIterator __last,
+ __false_type)
+ {
+ for ( ; __first != __last; ++__first)
+ insert(__pos, *__first);
+ }
+
+ // 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)
{
- _M_fill_insert(__pos, static_cast<size_type>(__n),
- static_cast<value_type>(__x));
+ for ( ; __n > 0; --__n)
+ insert(__pos, __x);
}
-
- // Called by the range insert to implement [23.1.1]/9
- template<typename _InputIterator>
+
+
+ // Moves the elements from [first,last) before position.
void
- _M_insert_dispatch(iterator __pos,
- _InputIterator __first, _InputIterator __last,
- __false_type)
+ _M_transfer(iterator __position, iterator __first, iterator __last)
{
- for ( ; __first != __last; ++__first)
- insert(__pos, *__first);
+ if (__position != __last)
+ {
+ // Remove [first, last) from its old position.
+ __last._M_node->_M_prev->_M_next = __position._M_node;
+ __first._M_node->_M_prev->_M_next = __last._M_node;
+ __position._M_node->_M_prev->_M_next = __first._M_node;
+
+ // Splice [first, last) into its new position.
+ _List_node_base* __tmp = __position._M_node->_M_prev;
+ __position._M_node->_M_prev = __last._M_node->_M_prev;
+ __last._M_node->_M_prev = __first._M_node->_M_prev;
+ __first._M_node->_M_prev = __tmp;
+ }
}
-
- // 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)
- {
- for ( ; __n > 0; --__n)
- insert(__pos, __x);
- }
-
-
- // Moves the elements from [first,last) before position.
- void
- _M_transfer(iterator __position, iterator __first, iterator __last)
- {
- if (__position != __last) {
- // Remove [first, last) from its old position.
- __last._M_node->_M_prev->_M_next = __position._M_node;
- __first._M_node->_M_prev->_M_next = __last._M_node;
- __position._M_node->_M_prev->_M_next = __first._M_node;
-
- // Splice [first, last) into its new position.
- _List_node_base* __tmp = __position._M_node->_M_prev;
- __position._M_node->_M_prev = __last._M_node->_M_prev;
- __last._M_node->_M_prev = __first._M_node->_M_prev;
- __first._M_node->_M_prev = __tmp;
- }
- }
- };
+ };
/**
* equal, and if corresponding elements compare equal.
*/
template<typename _Tp, typename _Alloc>
- inline bool
+ inline bool
operator==(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
{
typedef typename list<_Tp,_Alloc>::const_iterator const_iterator;
const_iterator __i1 = __x.begin();
const_iterator __i2 = __y.begin();
- while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2) {
- ++__i1;
- ++__i2;
+ while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2)
+ {
+ ++__i1;
+ ++__i2;
}
return __i1 == __end1 && __i2 == __end2;
}
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