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Diffstat (limited to 'libstdc++/stl/map.h')
| -rw-r--r-- | libstdc++/stl/map.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/libstdc++/stl/map.h b/libstdc++/stl/map.h new file mode 100644 index 00000000000..5c9d6b1bf3b --- /dev/null +++ b/libstdc++/stl/map.h @@ -0,0 +1,188 @@ +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +#ifndef __SGI_STL_MAP_H +#define __SGI_STL_MAP_H + +#include <tree.h> + +#ifndef __STL_LIMITED_DEFAULT_TEMPLATES +template <class Key, class T, class Compare = less<Key>, class Alloc = alloc> +#else +template <class Key, class T, class Compare, class Alloc = alloc> +#endif +class map { +public: + +// typedefs: + + typedef Key key_type; + typedef T data_type; + typedef pair<const Key, T> value_type; + typedef Compare key_compare; + + class value_compare + : public binary_function<value_type, value_type, bool> { + friend class map<Key, T, Compare, Alloc>; + protected : + Compare comp; + value_compare(Compare c) : comp(c) {} + public: + bool operator()(const value_type& x, const value_type& y) const { + return comp(x.first, y.first); + } + }; + +private: + typedef rb_tree<key_type, value_type, + select1st<value_type>, key_compare, Alloc> rep_type; + rep_type t; // red-black tree representing map +public: + typedef rep_type::pointer pointer; + typedef rep_type::reference reference; + typedef rep_type::const_reference const_reference; + typedef rep_type::iterator iterator; + typedef rep_type::const_iterator const_iterator; + typedef rep_type::reverse_iterator reverse_iterator; + typedef rep_type::const_reverse_iterator const_reverse_iterator; + typedef rep_type::size_type size_type; + typedef rep_type::difference_type difference_type; + + // allocation/deallocation + + map() : t(Compare()) {} + explicit map(const Compare& comp) : t(comp) {} + +#ifdef __STL_MEMBER_TEMPLATES + template <class InputIterator> + map(InputIterator first, InputIterator last) + : t(Compare()) { t.insert_unique(first, last); } + + template <class InputIterator> + map(InputIterator first, InputIterator last, const Compare& comp) + : t(comp) { t.insert_unique(first, last); } +#else + map(const value_type* first, const value_type* last) + : t(Compare()) { t.insert_unique(first, last); } + map(const value_type* first, const value_type* last, const Compare& comp) + : t(comp) { t.insert_unique(first, last); } + + map(const_iterator first, const_iterator last) + : t(Compare()) { t.insert_unique(first, last); } + map(const_iterator first, const_iterator last, const Compare& comp) + : t(comp) { t.insert_unique(first, last); } +#endif /* __STL_MEMBER_TEMPLATES */ + + map(const map<Key, T, Compare, Alloc>& x) : t(x.t) {} + map<Key, T, Compare, Alloc>& operator=(const map<Key, T, Compare, Alloc>& x) + { + t = x.t; + return *this; + } + + // accessors: + + key_compare key_comp() const { return t.key_comp(); } + value_compare value_comp() const { return value_compare(t.key_comp()); } + iterator begin() { return t.begin(); } + const_iterator begin() const { return t.begin(); } + iterator end() { return t.end(); } + const_iterator end() const { return t.end(); } + reverse_iterator rbegin() { return t.rbegin(); } + const_reverse_iterator rbegin() const { return t.rbegin(); } + reverse_iterator rend() { return t.rend(); } + const_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(); } + T& operator[](const key_type& k) { + return (*((insert(value_type(k, T()))).first)).second; + } + void swap(map<Key, T, Compare, Alloc>& x) { t.swap(x.t); } + + // insert/erase + + pair<iterator,bool> insert(const value_type& x) { return t.insert_unique(x); } + iterator insert(iterator position, const value_type& x) { + return t.insert_unique(position, x); + } +#ifdef __STL_MEMBER_TEMPLATES + template <class InputIterator> + void insert(InputIterator first, InputIterator last) { + t.insert_unique(first, last); + } +#else + void insert(const value_type* first, const value_type* last) { + t.insert_unique(first, last); + } + void insert(const_iterator first, const_iterator last) { + t.insert_unique(first, last); + } +#endif /* __STL_MEMBER_TEMPLATES */ + + void erase(iterator position) { t.erase(position); } + size_type erase(const key_type& x) { return t.erase(x); } + void erase(iterator first, iterator last) { t.erase(first, last); } + void clear() { t.clear(); } + + // map operations: + + iterator find(const key_type& x) { return t.find(x); } + const_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) {return t.lower_bound(x); } + const_iterator lower_bound(const key_type& x) const { + return t.lower_bound(x); + } + iterator upper_bound(const key_type& x) {return t.upper_bound(x); } + const_iterator upper_bound(const key_type& x) const { + return t.upper_bound(x); + } + + pair<iterator,iterator> equal_range(const key_type& x) { + return t.equal_range(x); + } + pair<const_iterator,const_iterator> equal_range(const key_type& x) const { + return t.equal_range(x); + } + friend bool operator==(const map&, const map&); + friend bool operator<(const map&, const map&); +}; + +template <class Key, class T, class Compare, class Alloc> +inline bool operator==(const map<Key, T, Compare, Alloc>& x, + const map<Key, T, Compare, Alloc>& y) { + return x.t == y.t; +} + +template <class Key, class T, class Compare, class Alloc> +inline bool operator<(const map<Key, T, Compare, Alloc>& x, + const map<Key, T, Compare, Alloc>& y) { + return x.t < y.t; +} + +#endif /* __SGI_STL_MAP_H */ + |