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G++ 2.91.57cygnus\cygwin-b20\include\g++\stl_set.h 完整列表

/*

 *

 * Copyright (c) 1994

 * Hewlett-Packard Company

 *

 * Permission to use, copy, modify, distributeand sell this software

 * and its documentation for any purpose ishereby granted without fee,

 * provided that the above copyright noticeappear in all copies and

 * that both that copyright notice and thispermission notice appear

 * in supporting documentation.  Hewlett-Packard Company makes no

 * representations about the suitability ofthis software for any

 * purpose. It is provided "as is" without express or implied warranty.

 *

 *

 * Copyright (c) 1996,1997

 * Silicon Graphics Computer Systems, Inc.

 *

 * Permission to use, copy, modify, distributeand sell this software

 * and its documentation for any purpose ishereby granted without fee,

 * provided that the above copyright noticeappear in all copies and

 * that both that copyright notice and thispermission notice appear

 * in supporting documentation.  Silicon Graphics makes no

 * representations about the suitability ofthis software for any

 * purpose. It is provided "as is" without express or implied warranty.

 */

 

/* NOTE: This isan internal header file, included by other STL headers.

 *   Youshould not attempt to use it directly.

 */

 

#ifndef__SGI_STL_INTERNAL_SET_H

#define__SGI_STL_INTERNAL_SET_H

 

__STL_BEGIN_NAMESPACE

 

#if defined(__sgi)&& !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)

#pragma set woff1174

#endif

 

#ifndef__STL_LIMITED_DEFAULT_TEMPLATES

template <classKey, class Compare = less<Key>, class Alloc = alloc>

#else

template <classKey, class Compare, class Alloc = alloc>

#endif

class set {

public:

  // typedefs:

 

  typedef Key key_type;

  typedef Key value_type;

  // 注意,以下 key_compare value_compare 使用相同的比較函式

  typedef Compare key_compare;

  typedef Compare value_compare;

private:

  /* 注意,identity 定義於 <stl_function.h>,參見第7章,其定義為:

    template <class T>

    struct identity: public unary_function<T, T> {

      const T& operator()(const T& x)const { return x; }

    };

  */

  // 以下,rb_tree<Key,Value, KeyOfValue, Compare, Alloc>

  typedef rb_tree<key_type, value_type,

                     identity<value_type>, key_compare, Alloc> rep_type;

  rep_type t;  // 採用紅黑樹(RB-tree)來表現 set

public:

  typedef typename rep_type::const_pointer pointer;

  typedef typename rep_type::const_pointer const_pointer;

  typedef typename rep_type::const_reference reference;

  typedef typename rep_type::const_reference const_reference;

  typedef typename rep_type::const_iterator iterator;

  // 注意上一行,iterator 定義為 RB-tree const_iterator,這表示 set

  // 迭代器無法執行寫入動作。這是因為 set 的元素有一定次序安排,

  // 不允許使用者在任意處做寫入動作。

  typedef typename rep_type::const_iterator const_iterator;

  typedef typename rep_type::const_reverse_iteratorreverse_iterator;

  typedef typenamerep_type::const_reverse_iterator const_reverse_iterator;

  typedef typename rep_type::size_type size_type;

  typedef typename rep_type::difference_type difference_type;

 

  //allocation/deallocation

  // 注意, set 一定使用 insert_unique() 而不使用 insert_equal()

  // multiset 才使用 insert_equal()

  set() : t(Compare()) {}

  explicit set(const Compare& comp) : t(comp) {}

 

#ifdef__STL_MEMBER_TEMPLATES

  template <class InputIterator>

  set(InputIterator first, InputIterator last)

    : t(Compare()) { t.insert_unique(first, last); }

 

  template <class InputIterator>

  set(InputIterator first, InputIterator last, const Compare& comp)

    : t(comp) { t.insert_unique(first, last); }

#else

  set(const value_type* first, const value_type* last)

    : t(Compare()) { t.insert_unique(first, last); }

  set(const value_type* first, const value_type* last, const Compare&comp)

    : t(comp) { t.insert_unique(first, last); }

 

  set(const_iterator first, const_iterator last)

    : t(Compare()) { t.insert_unique(first, last); }

  set(const_iterator first, const_iterator last, const Compare& comp)

    : t(comp) { t.insert_unique(first, last); }

#endif /*__STL_MEMBER_TEMPLATES */

 

  set(const set<Key, Compare, Alloc>& x) : t(x.t) {}

  set<Key, Compare,Alloc>& operator=(const set<Key,Compare, Alloc>& x) {

    t = x.t;

    return *this;

  }

 

  // 以下所有的 set操作行為,RB-tree 都已提供,所以 set 只要轉呼叫即可。

 

  // accessors:

  key_compare key_comp() const { return t.key_comp(); }

  // 以下注意,set value_comp() 事實上為RB-tree key_comp()

  value_compare value_comp() const { return t.key_comp(); }

  iterator begin() const { return t.begin(); }

  iterator end() const { return t.end(); }

  reverse_iterator rbegin() const { return t.rbegin(); }

  reverse_iterator rend() const { return t.rend(); }

  bool empty() const { return t.empty(); }

  size_type size() const { return t.size(); }

  size_type max_size() const { return t.max_size(); }

  void swap(set<Key, Compare, Alloc>& x) { t.swap(x.t); }

 

  // insert/erase

  typedef pair<iterator, bool> pair_iterator_bool;

  pair<iterator,bool> insert(const value_type& x) {

    pair<typename rep_type::iterator,bool> p = t.insert_unique(x);

    return pair<iterator, bool>(p.first,p.second);

  }

  iterator insert(iterator position, const value_type& x) {

    typedef typename rep_type::iteratorrep_iterator;

    return t.insert_unique((rep_iterator&)position, x);

  }

#ifdef__STL_MEMBER_TEMPLATES

  template <class InputIterator>

  void insert(InputIterator first, InputIterator last) {

    t.insert_unique(first, last);

  }

#else

  void insert(const_iterator first, const_iterator last) {

    t.insert_unique(first, last);

  }

  void insert(const value_type* first, const value_type* last) {

    t.insert_unique(first, last);

  }

#endif /*__STL_MEMBER_TEMPLATES */

  void erase(iterator position) {

    typedef typename rep_type::iterator rep_iterator;

    t.erase((rep_iterator&)position);

  }

  size_type erase(const key_type& x) {

    return t.erase(x);

  }

  void erase(iterator first, iterator last) {

    typedef typename rep_type::iteratorrep_iterator;

    t.erase((rep_iterator&)first, (rep_iterator&)last);

  }

  void clear() { t.clear(); }

 

  // set operations:

  iterator find(const key_type& x) const { return t.find(x); }

  size_type count(const key_type& x) const { return t.count(x); }

  iterator lower_bound(const key_type& x) const {

    return t.lower_bound(x);

  }

  iterator upper_bound(const key_type& x) const {

    return t.upper_bound(x);

  }

  pair<iterator,iterator> equal_range(const key_type& x) const {

    return t.equal_range(x);

  }

  friend bool operator== __STL_NULL_TMPL_ARGS (const set&, const set&);

  friend bool operator< __STL_NULL_TMPL_ARGS (const set&, const set&);

};

 

template <classKey, class Compare, class Alloc>

inline bool operator==(const set<Key, Compare, Alloc>& x,

                       const set<Key, Compare,Alloc>& y) {

  return x.t == y.t;

}

 

template <classKey, class Compare, class Alloc>

inline bool operator<(const set<Key, Compare, Alloc>& x,

                      const set<Key,Compare, Alloc>& y) {

  return x.t < y.t;

}

 

#ifdef__STL_FUNCTION_TMPL_PARTIAL_ORDER

 

template <classKey, class Compare, class Alloc>

inline void swap(set<Key, Compare, Alloc>& x,

                 set<Key, Compare,Alloc>& y) {

  x.swap(y);

}

 

#endif /*__STL_FUNCTION_TMPL_PARTIAL_ORDER */

 

#if defined(__sgi)&& !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)

#pragma reset woff1174

#endif

 

__STL_END_NAMESPACE

 

#endif /*__SGI_STL_INTERNAL_SET_H */

 

// LocalVariables:

// mode:C++

// End:

 

 

set源代码,布布扣,bubuko.com

set源代码

标签:stl   迭代器   源代码   sgi   set   

原文地址:http://blog.csdn.net/fayery/article/details/26518511

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