mirror of
https://github.com/dashr9230/SA-MP.git
synced 2024-12-22 14:37:29 +08:00
237 lines
7.9 KiB
C++
237 lines
7.9 KiB
C++
/// \file
|
|
/// \brief \b [Internal] Quicksort ordered list.
|
|
///
|
|
/// This file is part of RakNet Copyright 2003 Kevin Jenkins.
|
|
///
|
|
/// Usage of RakNet is subject to the appropriate license agreement.
|
|
/// Creative Commons Licensees are subject to the
|
|
/// license found at
|
|
/// http://creativecommons.org/licenses/by-nc/2.5/
|
|
/// Single application licensees are subject to the license found at
|
|
/// http://www.rakkarsoft.com/SingleApplicationLicense.html
|
|
/// Custom license users are subject to the terms therein.
|
|
/// GPL license users are subject to the GNU General Public
|
|
/// License as published by the Free
|
|
/// Software Foundation; either version 2 of the License, or (at your
|
|
/// option) any later version.
|
|
|
|
#include "DS_List.h"
|
|
#include "Export.h"
|
|
|
|
#ifndef __ORDERED_LIST_H
|
|
#define __ORDERED_LIST_H
|
|
|
|
/// The namespace DataStructures was only added to avoid compiler errors for commonly named data structures
|
|
/// As these data structures are stand-alone, you can use them outside of RakNet for your own projects if you wish.
|
|
namespace DataStructures
|
|
{
|
|
template <class key_type, class data_type>
|
|
int defaultOrderedListComparison(const key_type &a, const data_type &b)
|
|
{
|
|
if (a<b) return -1; if (a==b) return 0; return 1;
|
|
}
|
|
|
|
/// \note IMPORTANT! If you use defaultOrderedListComparison then call IMPLEMENT_DEFAULT_COMPARISON or you will get an unresolved external linker error.
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)=defaultOrderedListComparison<key_type, data_type> >
|
|
class RAK_DLL_EXPORT OrderedList
|
|
{
|
|
public:
|
|
static void IMPLEMENT_DEFAULT_COMPARISON(void) {DataStructures::defaultOrderedListComparison<key_type, data_type>(key_type(),data_type());}
|
|
|
|
OrderedList();
|
|
~OrderedList();
|
|
OrderedList( const OrderedList& original_copy );
|
|
OrderedList& operator= ( const OrderedList& original_copy );
|
|
|
|
/// comparisonFunction must take a key_type and a data_type and return <0, ==0, or >0
|
|
/// If the data type has comparison operators already defined then you can just use defaultComparison
|
|
bool HasData(const key_type &key) const;
|
|
unsigned GetIndexFromKey(const key_type &key, bool *objectExists) const;
|
|
data_type GetElementFromKey(const key_type &key);
|
|
unsigned Insert(const key_type &key, const data_type &data);
|
|
unsigned Remove(const key_type &key);
|
|
data_type& operator[] ( const unsigned int position ) const;
|
|
void RemoveAtIndex(const unsigned index);
|
|
void InsertAtIndex(const data_type &data, const unsigned index);
|
|
void InsertAtEnd(const data_type &data);
|
|
void Del(const unsigned num=1);
|
|
void Clear(void);
|
|
unsigned Size(void) const;
|
|
|
|
protected:
|
|
DataStructures::List<data_type> orderedList;
|
|
};
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
OrderedList<key_type, data_type, comparison_function>::OrderedList()
|
|
{
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
OrderedList<key_type, data_type, comparison_function>::~OrderedList()
|
|
{
|
|
Clear();
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
OrderedList<key_type, data_type, comparison_function>::OrderedList( const OrderedList& original_copy )
|
|
{
|
|
orderedList=original_copy.orderedList;
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
OrderedList<key_type, data_type, comparison_function>& OrderedList<key_type, data_type, comparison_function>::operator= ( const OrderedList& original_copy )
|
|
{
|
|
orderedList=original_copy.orderedList;
|
|
return *this;
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
bool OrderedList<key_type, data_type, comparison_function>::HasData(const key_type &key) const
|
|
{
|
|
bool objectExists;
|
|
unsigned index;
|
|
index = GetIndexFromKey(key, &objectExists);
|
|
return objectExists;
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
data_type OrderedList<key_type, data_type, comparison_function>::GetElementFromKey(const key_type &key)
|
|
{
|
|
bool objectExists;
|
|
unsigned index;
|
|
index = GetIndexFromKey(key, &objectExists);
|
|
assert(objectExists);
|
|
return orderedList[index];
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
unsigned OrderedList<key_type, data_type, comparison_function>::GetIndexFromKey(const key_type &key, bool *objectExists) const
|
|
{
|
|
int index, upperBound, lowerBound;
|
|
int res;
|
|
|
|
if (orderedList.Size()==0)
|
|
{
|
|
*objectExists=false;
|
|
return 0;
|
|
}
|
|
|
|
upperBound=(int)orderedList.Size()-1;
|
|
lowerBound=0;
|
|
index = (int)orderedList.Size()/2;
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning( disable : 4127 ) // warning C4127: conditional expression is constant
|
|
#endif
|
|
while (1)
|
|
{
|
|
res = comparison_function(key,orderedList[index]);
|
|
if (res==0)
|
|
{
|
|
*objectExists=true;
|
|
return index;
|
|
}
|
|
else if (res<0)
|
|
{
|
|
upperBound=index-1;
|
|
}
|
|
else// if (res>0)
|
|
{
|
|
lowerBound=index+1;
|
|
}
|
|
|
|
index=lowerBound+(upperBound-lowerBound)/2;
|
|
|
|
if (lowerBound>upperBound)
|
|
{
|
|
*objectExists=false;
|
|
return lowerBound; // No match
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
unsigned OrderedList<key_type, data_type, comparison_function>::Insert(const key_type &key, const data_type &data)
|
|
{
|
|
bool objectExists;
|
|
unsigned index;
|
|
index = GetIndexFromKey(key, &objectExists);
|
|
|
|
// Don't allow duplicate insertion.
|
|
if (objectExists)
|
|
return (unsigned)-1;
|
|
|
|
if (index>=orderedList.Size())
|
|
{
|
|
orderedList.Insert(data);
|
|
return orderedList.Size()-1;
|
|
}
|
|
else
|
|
{
|
|
orderedList.Insert(data,index);
|
|
return index;
|
|
}
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
unsigned OrderedList<key_type, data_type, comparison_function>::Remove(const key_type &key)
|
|
{
|
|
bool objectExists;
|
|
unsigned index;
|
|
index = GetIndexFromKey(key, &objectExists);
|
|
|
|
// Can't find the element to remove if this assert hits
|
|
assert(objectExists==true);
|
|
if (objectExists==false)
|
|
return 0;
|
|
|
|
orderedList.RemoveAtIndex(index);
|
|
return index;
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
void OrderedList<key_type, data_type, comparison_function>::RemoveAtIndex(const unsigned index)
|
|
{
|
|
orderedList.RemoveAtIndex(index);
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
void OrderedList<key_type, data_type, comparison_function>::InsertAtIndex(const data_type &data, const unsigned index)
|
|
{
|
|
orderedList.Insert(data, index);
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
void OrderedList<key_type, data_type, comparison_function>::InsertAtEnd(const data_type &data)
|
|
{
|
|
orderedList.Insert(data);
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
void OrderedList<key_type, data_type, comparison_function>::Del(const unsigned num)
|
|
{
|
|
orderedList.Del(num);
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
void OrderedList<key_type, data_type, comparison_function>::Clear(void)
|
|
{
|
|
orderedList.Clear();
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
data_type& OrderedList<key_type, data_type, comparison_function>::operator[]( const unsigned int position ) const
|
|
{
|
|
return orderedList[position];
|
|
}
|
|
|
|
template <class key_type, class data_type, int (*comparison_function)(const key_type&, const data_type&)>
|
|
unsigned OrderedList<key_type, data_type, comparison_function>::Size(void) const
|
|
{
|
|
return orderedList.Size();
|
|
}
|
|
}
|
|
|
|
#endif
|