stl_slist.h

stl的源代码3.13版

  void _M_insert_after_range(_Node_base* __pos,
                             _InIter __first, _InIter __last,
                             __false_type) {
    while (__first != __last) {
      __pos = __slist_make_link(__pos, _M_create_node(*__first));
      ++__first;
    }
  }

#else /* __STL_MEMBER_TEMPLATES */

  void _M_insert_after_range(_Node_base* __pos,
                             const_iterator __first, const_iterator __last) {
    while (__first != __last) {
      __pos = __slist_make_link(__pos, _M_create_node(*__first));
      ++__first;
    }
  }
  void _M_insert_after_range(_Node_base* __pos,
                             const value_type* __first,
                             const value_type* __last) {
    while (__first != __last) {
      __pos = __slist_make_link(__pos, _M_create_node(*__first));
      ++__first;
    }
  }

#endif /* __STL_MEMBER_TEMPLATES */

public:

  iterator insert_after(iterator __pos, const value_type& __x) {
    return iterator(_M_insert_after(__pos._M_node, __x));
  }

  iterator insert_after(iterator __pos) {
    return insert_after(__pos, value_type());
  }

  void insert_after(iterator __pos, size_type __n, const value_type& __x) {
    _M_insert_after_fill(__pos._M_node, __n, __x);
  }

#ifdef __STL_MEMBER_TEMPLATES

  // We don't need any dispatching tricks here, because _M_insert_after_range
  // already does them.
  template <class _InIter>
  void insert_after(iterator __pos, _InIter __first, _InIter __last) {
    _M_insert_after_range(__pos._M_node, __first, __last);
  }

#else /* __STL_MEMBER_TEMPLATES */

  void insert_after(iterator __pos,
                    const_iterator __first, const_iterator __last) {
    _M_insert_after_range(__pos._M_node, __first, __last);
  }
  void insert_after(iterator __pos,
                    const value_type* __first, const value_type* __last) {
    _M_insert_after_range(__pos._M_node, __first, __last);
  }

#endif /* __STL_MEMBER_TEMPLATES */

  iterator insert(iterator __pos, const value_type& __x) {
    return iterator(_M_insert_after(__slist_previous(&_M_head, __pos._M_node),
                    __x));
  }

  iterator insert(iterator __pos) {
    return iterator(_M_insert_after(__slist_previous(&_M_head, __pos._M_node),
                                    value_type()));
  }

  void insert(iterator __pos, size_type __n, const value_type& __x) {
    _M_insert_after_fill(__slist_previous(&_M_head, __pos._M_node), __n, __x);
  } 
    
#ifdef __STL_MEMBER_TEMPLATES

  // We don't need any dispatching tricks here, because _M_insert_after_range
  // already does them.
  template <class _InIter>
  void insert(iterator __pos, _InIter __first, _InIter __last) {
    _M_insert_after_range(__slist_previous(&_M_head, __pos._M_node), 
                          __first, __last);
  }

#else /* __STL_MEMBER_TEMPLATES */

  void insert(iterator __pos, const_iterator __first, const_iterator __last) {
    _M_insert_after_range(__slist_previous(&_M_head, __pos._M_node), 
                          __first, __last);
  }
  void insert(iterator __pos, const value_type* __first, 
                              const value_type* __last) {
    _M_insert_after_range(__slist_previous(&_M_head, __pos._M_node), 
                          __first, __last);
  }

#endif /* __STL_MEMBER_TEMPLATES */


public:
  iterator erase_after(iterator __pos) {
    return iterator((_Node*) _M_erase_after(__pos._M_node));
  }
  iterator erase_after(iterator __before_first, iterator __last) {
    return iterator((_Node*) _M_erase_after(__before_first._M_node, 
                                            __last._M_node));
  } 

  iterator erase(iterator __pos) {
    return (_Node*) _M_erase_after(__slist_previous(&_M_head, 
                                                    __pos._M_node));
  }
  iterator erase(iterator __first, iterator __last) {
    return (_Node*) _M_erase_after(
      __slist_previous(&_M_head, __first._M_node), __last._M_node);
  }

  void resize(size_type new_size, const _Tp& __x);
  void resize(size_type new_size) { resize(new_size, _Tp()); }
  void clear() { _M_erase_after(&_M_head, 0); }

public:
  // Moves the range [__before_first + 1, __before_last + 1) to *this,
  //  inserting it immediately after __pos.  This is constant time.
  void splice_after(iterator __pos, 
                    iterator __before_first, iterator __before_last)
  {
    if (__before_first != __before_last) 
      __slist_splice_after(__pos._M_node, __before_first._M_node, 
                           __before_last._M_node);
  }

  // Moves the element that follows __prev to *this, inserting it immediately
  //  after __pos.  This is constant time.
  void splice_after(iterator __pos, iterator __prev)
  {
    __slist_splice_after(__pos._M_node,
                         __prev._M_node, __prev._M_node->_M_next);
  }


  // Linear in distance(begin(), __pos), and linear in __x.size().
  void splice(iterator __pos, slist& __x) {
    if (__x._M_head._M_next)
      __slist_splice_after(__slist_previous(&_M_head, __pos._M_node),
                           &__x._M_head, __slist_previous(&__x._M_head, 0));
  }

  // Linear in distance(begin(), __pos), and in distance(__x.begin(), __i).
  void splice(iterator __pos, slist& __x, iterator __i) {
    __slist_splice_after(__slist_previous(&_M_head, __pos._M_node),
                         __slist_previous(&__x._M_head, __i._M_node),
                         __i._M_node);
  }

  // Linear in distance(begin(), __pos), in distance(__x.begin(), __first),
  // and in distance(__first, __last).
  void splice(iterator __pos, slist& __x, iterator __first, iterator __last)
  {
    if (__first != __last)
      __slist_splice_after(__slist_previous(&_M_head, __pos._M_node),
                           __slist_previous(&__x._M_head, __first._M_node),
                           __slist_previous(__first._M_node, __last._M_node));
  }

public:
  void reverse() { 
    if (_M_head._M_next)
      _M_head._M_next = __slist_reverse(_M_head._M_next);
  }

  void remove(const _Tp& __val); 
  void unique(); 
  void merge(slist& __x);
  void sort();     

#ifdef __STL_MEMBER_TEMPLATES
  template <class _Predicate> 
  void remove_if(_Predicate __pred);

  template <class _BinaryPredicate> 
  void unique(_BinaryPredicate __pred); 

  template <class _StrictWeakOrdering> 
  void merge(slist&, _StrictWeakOrdering);

  template <class _StrictWeakOrdering> 
  void sort(_StrictWeakOrdering __comp); 
#endif /* __STL_MEMBER_TEMPLATES */
};

template <class _Tp, class _Alloc>
slist<_Tp,_Alloc>& slist<_Tp,_Alloc>::operator=(const slist<_Tp,_Alloc>& __x)
{
  if (&__x != this) {
    _Node_base* __p1 = &_M_head;
    _Node* __n1 = (_Node*) _M_head._M_next;
    const _Node* __n2 = (const _Node*) __x._M_head._M_next;
    while (__n1 && __n2) {
      __n1->_M_data = __n2->_M_data;
      __p1 = __n1;
      __n1 = (_Node*) __n1->_M_next;
      __n2 = (const _Node*) __n2->_M_next;
    }
    if (__n2 == 0)
      _M_erase_after(__p1, 0);
    else
      _M_insert_after_range(__p1, const_iterator((_Node*)__n2), 
                                  const_iterator(0));
  }
  return *this;
}

template <class _Tp, class _Alloc>
void slist<_Tp, _Alloc>::_M_fill_assign(size_type __n, const _Tp& __val) {
  _Node_base* __prev = &_M_head;
  _Node* __node = (_Node*) _M_head._M_next;
  for ( ; __node != 0 && __n > 0 ; --__n) {
    __node->_M_data = __val;
    __prev = __node;
    __node = (_Node*) __node->_M_next;
  }
  if (__n > 0)
    _M_insert_after_fill(__prev, __n, __val);
  else
    _M_erase_after(__prev, 0);
}

#ifdef __STL_MEMBER_TEMPLATES

template <class _Tp, class _Alloc> template <class _InputIter>
void
slist<_Tp, _Alloc>::_M_assign_dispatch(_InputIter __first, _InputIter __last,
                                       __false_type)
{
  _Node_base* __prev = &_M_head;
  _Node* __node = (_Node*) _M_head._M_next;
  while (__node != 0 && __first != __last) {
    __node->_M_data = *__first;
    __prev = __node;
    __node = (_Node*) __node->_M_next;
    ++__first;
  }
  if (__first != __last)
    _M_insert_after_range(__prev, __first, __last);
  else
    _M_erase_after(__prev, 0);
}

#endif /* __STL_MEMBER_TEMPLATES */

template <class _Tp, class _Alloc>
inline bool 
operator==(const slist<_Tp,_Alloc>& _SL1, const slist<_Tp,_Alloc>& _SL2)
{
  typedef typename slist<_Tp,_Alloc>::const_iterator const_iterator;
  const_iterator __end1 = _SL1.end();
  const_iterator __end2 = _SL2.end();

  const_iterator __i1 = _SL1.begin();
  const_iterator __i2 = _SL2.begin();
  while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2) {
    ++__i1;
    ++__i2;
  }
  return __i1 == __end1 && __i2 == __end2;
}


template <class _Tp, class _Alloc>
inline bool
operator<(const slist<_Tp,_Alloc>& _SL1, const slist<_Tp,_Alloc>& _SL2)
{
  return lexicographical_compare(_SL1.begin(), _SL1.end(), 
                                 _SL2.begin(), _SL2.end());
}

#ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER

template <class _Tp, class _Alloc>
inline bool 
operator!=(const slist<_Tp,_Alloc>& _SL1, const slist<_Tp,_Alloc>& _SL2) {
  return !(_SL1 == _SL2);
}

template <class _Tp, class _Alloc>
inline bool 
operator>(const slist<_Tp,_Alloc>& _SL1, const slist<_Tp,_Alloc>& _SL2) {
  return _SL2 < _SL1;
}

template <class _Tp, class _Alloc>
inline bool 
operator<=(const slist<_Tp,_Alloc>& _SL1, const slist<_Tp,_Alloc>& _SL2) {
  return !(_SL2 < _SL1);
}

template <class _Tp, class _Alloc>
inline bool 
operator>=(const slist<_Tp,_Alloc>& _SL1, const slist<_Tp,_Alloc>& _SL2) {
  return !(_SL1 < _SL2);
}

template <class _Tp, class _Alloc>
inline void swap(slist<_Tp,_Alloc>& __x, slist<_Tp,_Alloc>& __y) {
  __x.swap(__y);
}

#endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */


template <class _Tp, class _Alloc>
void slist<_Tp,_Alloc>::resize(size_type __len, const _Tp& __x)
{
  _Node_base* __cur = &_M_head;
  while (__cur->_M_next != 0 && __len > 0) {
    --__len;
    __cur = __cur->_M_next;
  }
  if (__cur->_M_next) 
    _M_erase_after(__cur, 0);
  else
    _M_insert_after_fill(__cur, __len, __x);
}

template <class _Tp, class _Alloc>
void slist<_Tp,_Alloc>::remove(const _Tp& __val)
{
  _Node_base* __cur = &_M_head;
  while (__cur && __cur->_M_next) {
    if (((_Node*) __cur->_M_next)->_M_data == __val)
      _M_erase_after(__cur);
    else
      __cur = __cur->_M_next;
  }
}

template <class _Tp, class _Alloc> 
void slist<_Tp,_Alloc>::unique()
{
  _Node_base* __cur = _M_head._M_next;
  if (__cur) {
    while (__cur->_M_next) {
      if (((_Node*)__cur)->_M_data == 
          ((_Node*)(__cur->_M_next))->_M_data)
        _M_erase_after(__cur);
      else
        __cur = __cur->_M_next;
    }
  }
}

template <class _Tp, class _Alloc>
void slist<_Tp,_Alloc>::merge(slist<_Tp,_Alloc>& __x)
{
  _Node_base* __n1 = &_M_head;
  while (__n1->_M_next && __x._M_head._M_next) {
    if (((_Node*) __x._M_head._M_next)->_M_data < 
        ((_Node*)       __n1->_M_next)->_M_data) 
      __slist_splice_after(__n1, &__x._M_head, __x._M_head._M_next);
    __n1 = __n1->_M_next;
  }
  if (__x._M_head._M_next) {
    __n1->_M_next = __x._M_head._M_next;
    __x._M_head._M_next = 0;
  }
}

template <class _Tp, class _Alloc>
void slist<_Tp,_Alloc>::sort()
{
  if (_M_head._M_next && _M_head._M_next->_M_next) {
    slist __carry;
    slist __counter[64];
    int __fill = 0;
    while (!empty()) {
      __slist_splice_after(&__carry._M_head, &_M_head, _M_head._M_next);
      int __i = 0;
      while (__i < __fill && !__counter[__i].empty()) {
        __counter[__i].merge(__carry);
        __carry.swap(__counter[__i]);
        ++__i;
      }
      __carry.swap(__counter[__i]);
      if (__i == __fill)
        ++__fill;
    }

    for (int __i = 1; __i < __fill; ++__i)
      __counter[__i].merge(__counter[__i-1]);
    this->swap(__counter[__fill-1]);
  }
}

#ifdef __STL_MEMBER_TEMPLATES

template <class _Tp, class _Alloc> 
template <class _Predicate>
void slist<_Tp,_Alloc>::remove_if(_Predicate __pred)
{
  _Node_base* __cur = &_M_head;
  while (__cur->_M_next) {
    if (__pred(((_Node*) __cur->_M_next)->_M_data))
      _M_erase_after(__cur);
    else
      __cur = __cur->_M_next;
  }
}

template <class _Tp, class _Alloc> template <class _BinaryPredicate> 
void slist<_Tp,_Alloc>::unique(_BinaryPredicate __pred)
{
  _Node* __cur = (_Node*) _M_head._M_next;
  if (__cur) {
    while (__cur->_M_next) {
      if (__pred(((_Node*)__cur)->_M_data, 
                 ((_Node*)(__cur->_M_next))->_M_data))
        _M_erase_after(__cur);
      else
        __cur = (_Node*) __cur->_M_next;
    }
  }
}

template <class _Tp, class _Alloc> template <class _StrictWeakOrdering>
void slist<_Tp,_Alloc>::merge(slist<_Tp,_Alloc>& __x,
                              _StrictWeakOrdering __comp)
{
  _Node_base* __n1 = &_M_head;
  while (__n1->_M_next && __x._M_head._M_next) {
    if (__comp(((_Node*) __x._M_head._M_next)->_M_data,
               ((_Node*)       __n1->_M_next)->_M_data))
      __slist_splice_after(__n1, &__x._M_head, __x._M_head._M_next);
    __n1 = __n1->_M_next;
  }
  if (__x._M_head._M_next) {
    __n1->_M_next = __x._M_head._M_next;
    __x._M_head._M_next = 0;
  }
}

template <class _Tp, class _Alloc> template <class _StrictWeakOrdering> 
void slist<_Tp,_Alloc>::sort(_StrictWeakOrdering __comp)
{
  if (_M_head._M_next && _M_head._M_next->_M_next) {
    slist __carry;
    slist __counter[64];
    int __fill = 0;
    while (!empty()) {
      __slist_splice_after(&__carry._M_head, &_M_head, _M_head._M_next);
      int __i = 0;
      while (__i < __fill && !__counter[__i].empty()) {
        __counter[__i].merge(__carry, __comp);
        __carry.swap(__counter[__i]);
        ++__i;
      }
      __carry.swap(__counter[__i]);
      if (__i == __fill)
        ++__fill;
    }

    for (int __i = 1; __i < __fill; ++__i)
      __counter[__i].merge(__counter[__i-1], __comp);
    this->swap(__counter[__fill-1]);
  }
}

#endif /* __STL_MEMBER_TEMPLATES */

#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
#pragma reset woff 1174
#pragma reset woff 1375
#endif

__STL_END_NAMESPACE 

#endif /* __SGI_STL_INTERNAL_SLIST_H */

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// mode:C++
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