set

/*	Copyright (C) 2004 Garrett A. Kajmowicz
	This file is part of the uClibc++ Library.

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2.1 of the License, or (at your option) any later version.

	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public
	License along with this library; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/



#include "memory"
#include "utility"
#include "iterator"
#include "deque"
#include "functional"
#include "associative_base"

#ifndef __STD_HEADER_SET
#define __STD_HEADER_SET

#pragma GCC visibility push(default)

namespace std{


template<class Key, class Compare = less<Key>, class Allocator = allocator<Key> > class set;
template<class Key, class Compare = less<Key>, class Allocator = allocator<Key> > class multiset;


/* This is the implementation for the set container.  As noted above, it deviates
 * from ISO spec by deriving from a base class in order to reduce code redundancy.
 * More code could be reduced by convirting to virtual functions (thus allowing
 * much of the erase and insert code to be duplicated), but that would deviate from
 * the specifications too much to be worth the risk.
 */


//Implementation of set


template<class Key, class Compare, class Allocator> class _UCXXEXPORT set
	: public __single_associative<Key, Key, Compare, Allocator>
{
		//Default value of allocator does not meet C++ standard specs, but it works for this library
		//Deal with it
public:

	typedef	__single_associative<Key, Key, Compare, Allocator>	base;
	typedef typename base::key_type					key_type;
	typedef typename base::value_type				value_type;
	typedef typename base::key_compare				key_compare;
	typedef typename base::allocator_type				allocator_type;
	typedef typename base::reference				reference;
	typedef typename base::const_reference				const_reference;
	typedef typename base::iterator					iterator;
	typedef typename base::const_iterator				const_iterator;
	typedef typename base::size_type				size_type;
	typedef typename base::difference_type				difference_type;
	typedef typename base::pointer					pointer;
	typedef typename base::const_pointer				const_pointer;
	typedef typename base::reverse_iterator				reverse_iterator;
	typedef typename base::const_reverse_iterator			const_reverse_iterator;

//	using base::value_compare;

	static const key_type v_t_k(const value_type v){
		return v;
	}

	explicit set(const Compare& comp = Compare(), const Allocator& al = Allocator())
		: base(comp, al, v_t_k) {  }

	template <class InputIterator> set(InputIterator first, InputIterator last,
		const Compare& comp = Compare(), const Allocator& al = Allocator())
		: base(first, last, comp, al, v_t_k) {  }

	set(const set<Key, Compare,Allocator>& x) : base(x) {  }
	~set() {  }

	using base::operator=;
	using base::operator==;
	using base::operator!=;

	using base::insert;
	using base::erase;

	using base::begin;
	using base::end;
	using base::rbegin;
	using base::rend;

	using base::empty;
	using base::size;
	using base::max_size;


	using base::find;
	using base::count;
	using base::lower_bound;
	using base::upper_bound;
	using base::equal_range;

protected:

};


//Implementation of multiset


template<class Key, class Compare, class Allocator> class _UCXXEXPORT multiset
	: public __multi_associative<Key, Key, Compare, Allocator>
{
		//Default value of allocator does not meet C++ standard specs, but it works for this library
		//Deal with it
public:

	typedef	__multi_associative<Key, Key, Compare, Allocator> 	base;
	typedef typename base::key_type					key_type;
	typedef typename base::value_type				value_type;
	typedef typename base::key_compare				key_compare;
	typedef typename base::allocator_type				allocator_type;
	typedef typename base::reference				reference;
	typedef typename base::const_reference				const_reference;
	typedef typename base::iterator					iterator;
	typedef typename base::const_iterator				const_iterator;
	typedef typename base::size_type				size_type;
	typedef typename base::difference_type				difference_type;
	typedef typename base::pointer					pointer;
	typedef typename base::const_pointer				const_pointer;
	typedef typename base::reverse_iterator				reverse_iterator;
	typedef typename base::const_reverse_iterator			const_reverse_iterator;

	static const key_type v_t_k(const value_type v){
		return v;
	}

	explicit multiset(const Compare& comp = Compare(), const Allocator& al = Allocator())
		: base(comp, al, v_t_k) {  }

	template <class InputIterator> multiset(InputIterator first, InputIterator last,
		const Compare& comp = Compare(), const Allocator& al = Allocator())
		: base(first, last, comp, al, v_t_k) {  }


	multiset(const multiset<Key, Compare, Allocator>& x) : base(x) {  }
	~multiset() {  }

	using base::operator=;
	using base::operator==;
	using base::operator!=;

	using base::insert;
	using base::erase;

	using base::begin;
	using base::end;
	using base::rbegin;
	using base::rend;

	using base::empty;
	using base::size;
	using base::max_size;

	using base::find;
	using base::count;
	using base::lower_bound;
	using base::upper_bound;
	using base::equal_range;


protected:

};


/* Non-member functions.  These are at the end because they are not associated with any
   particular class.  These will be implemented as I figure out exactly what all of
   them are supposed to do, and I have time.
 */

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator<
		(const set<Key,Compare,Allocator>& x, const set<Key,Compare,Allocator>& y)
	{
		typename set<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename set<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename set<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename set<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 < *first2 ){
				return true;
			}
			if( *first2 < *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first1==last1 && first2 != last2;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator>
		(const set<Key,Compare,Allocator>& x, const set<Key,Compare,Allocator>& y)
	{
		typename set<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename set<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename set<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename set<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 > *first2 ){
				return true;
			}
			if( *first2 > *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first1!=last1 && first2 == last2;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator>=
		(const set<Key,Compare,Allocator>& x, const set<Key,Compare,Allocator>& y)
	{
		typename set<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename set<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename set<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename set<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 > *first2 ){
				return true;
			}
			if( *first2 > *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first1!=last1;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator<=
		(const set<Key,Compare,Allocator>& x, const set<Key,Compare,Allocator>& y)
	{
		typename set<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename set<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename set<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename set<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 < *first2 ){
				return true;
			}
			if( *first2 < *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first2!=last2;
	}
	template <class Key, class Compare, class Allocator> _UCXXEXPORT void swap
		(set<Key,Compare,Allocator>& x, set<Key,Compare,Allocator>& y)
	{
		x.swap(y);
	}


	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator==
		(const multiset<Key,Compare,Allocator>& x, const multiset<Key,Compare,Allocator>& y)
	{
		if(x.data == y.data){
			return true;
		}
		return false;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator<
		(const multiset<Key,Compare,Allocator>& x, const multiset<Key,Compare,Allocator>& y)
	{
		typename multiset<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename multiset<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 < *first2 ){
				return true;
			}
			if( *first2 < *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first1==last1 && first2 != last2;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator!=
		(const multiset<Key,Compare,Allocator>& x, const multiset<Key,Compare,Allocator>& y)
	{
		typename multiset<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename multiset<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 != *first2 ){
				return true;
			}
			++first1;
			++first2;
		}
		return first1!=last1 || first2 != last2;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator>
		(const multiset<Key,Compare,Allocator>& x, const multiset<Key,Compare,Allocator>& y)
	{
		typename multiset<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename multiset<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 > *first2 ){
				return true;
			}
			if( *first2 > *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first1!=last1 && first2 == last2;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator>=
		(const multiset<Key,Compare,Allocator>& x, const multiset<Key,Compare,Allocator>& y)
	{
		typename multiset<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename multiset<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 > *first2 ){
				return true;
			}
			if( *first2 > *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first1!=last1;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT bool operator<=
		(const multiset<Key,Compare,Allocator>& x, const multiset<Key,Compare,Allocator>& y)
	{
		typename multiset<Key,Compare,Allocator>::const_iterator first1 = x.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator first2 = y.begin();
		typename multiset<Key,Compare,Allocator>::const_iterator last1 = x.end();
		typename multiset<Key,Compare,Allocator>::const_iterator last2 = y.end();

		while(first1 != last1 && first2 != last2){
			if( *first1 < *first2 ){
				return true;
			}
			if( *first2 < *first1 ){
				return false;
			}
			++first1;
			++first2;
		}
		return first2!=last2;
	}

	template <class Key, class Compare, class Allocator> _UCXXEXPORT void swap
		(multiset<Key,Compare,Allocator>& x, multiset<Key,Compare,Allocator>& y)
	{
		x.swap(y);
	}



}

#pragma GCC visibility pop

#endif