diff options
| author | Jørgen P. Tjernø <[email protected]> | 2013-12-02 19:31:46 -0800 |
|---|---|---|
| committer | Jørgen P. Tjernø <[email protected]> | 2013-12-02 19:46:31 -0800 |
| commit | f56bb35301836e56582a575a75864392a0177875 (patch) | |
| tree | de61ddd39de3e7df52759711950b4c288592f0dc /sp/src/public/tier1/UtlSortVector.h | |
| parent | Mark some more files as text. (diff) | |
| download | source-sdk-2013-f56bb35301836e56582a575a75864392a0177875.tar.xz source-sdk-2013-f56bb35301836e56582a575a75864392a0177875.zip | |
Fix line endings. WHAMMY.
Diffstat (limited to 'sp/src/public/tier1/UtlSortVector.h')
| -rw-r--r-- | sp/src/public/tier1/UtlSortVector.h | 642 |
1 files changed, 321 insertions, 321 deletions
diff --git a/sp/src/public/tier1/UtlSortVector.h b/sp/src/public/tier1/UtlSortVector.h index ec7d972d..76026925 100644 --- a/sp/src/public/tier1/UtlSortVector.h +++ b/sp/src/public/tier1/UtlSortVector.h @@ -1,321 +1,321 @@ -//========= Copyright Valve Corporation, All rights reserved. ============//
-//
-// $Header: $
-// $NoKeywords: $
-//
-// A growable array class that keeps all elements in order using binary search
-//===========================================================================//
-
-#ifndef UTLSORTVECTOR_H
-#define UTLSORTVECTOR_H
-
-#ifdef _WIN32
-#pragma once
-#endif
-
-#include "utlvector.h"
-
-
-//-----------------------------------------------------------------------------
-// class CUtlSortVector:
-// description:
-// This in an sorted order-preserving vector. Items may be inserted or removed
-// at any point in the vector. When an item is inserted, all elements are
-// moved down by one element using memmove. When an item is removed, all
-// elements are shifted back down. Items are searched for in the vector
-// using a binary search technique. Clients must pass in a Less() function
-// into the constructor of the vector to determine the sort order.
-//-----------------------------------------------------------------------------
-
-#ifndef _WIN32
-// gcc has no qsort_s, so i need to use a static var to hold the sort context. this makes cutlsortvector _not_ thread sfae under linux
-extern void *g_pUtlSortVectorQSortContext;
-#endif
-
-template <class T>
-class CUtlSortVectorDefaultLess
-{
-public:
- bool Less( const T& lhs, const T& rhs, void * )
- {
- return lhs < rhs;
- }
-};
-
-template <class T, class LessFunc = CUtlSortVectorDefaultLess<T>, class BaseVector = CUtlVector<T> >
-class CUtlSortVector : public BaseVector
-{
-public:
-
- // constructor
- CUtlSortVector( int nGrowSize = 0, int initSize = 0 );
- CUtlSortVector( T* pMemory, int numElements );
-
- // inserts (copy constructs) an element in sorted order into the list
- int Insert( const T& src );
-
- // Finds an element within the list using a binary search
- int Find( const T& search ) const;
- int FindLessOrEqual( const T& search ) const;
- int FindLess( const T& search ) const;
-
- // Removes a particular element
- void Remove( const T& search );
- void Remove( int i );
-
- // Allows methods to set a context to be used with the less function..
- void SetLessContext( void *pCtx );
-
- // Note that you can only use this index until sorting is redone!!!
- int InsertNoSort( const T& src );
- void RedoSort( bool bForceSort = false );
-
-protected:
- // No copy constructor
- CUtlSortVector( const CUtlSortVector<T, LessFunc> & );
-
- // never call these; illegal for this class
- int AddToHead();
- int AddToTail();
- int InsertBefore( int elem );
- int InsertAfter( int elem );
- int AddToHead( const T& src );
- int AddToTail( const T& src );
- int InsertBefore( int elem, const T& src );
- int InsertAfter( int elem, const T& src );
- int AddMultipleToHead( int num );
- int AddMultipleToTail( int num, const T *pToCopy=NULL );
- int InsertMultipleBefore( int elem, int num, const T *pToCopy=NULL );
- int InsertMultipleAfter( int elem, int num );
- int AddVectorToTail( CUtlVector<T> const &src );
-
- struct QSortContext_t
- {
- void *m_pLessContext;
- LessFunc *m_pLessFunc;
- };
-
-#ifdef _WIN32
- static int CompareHelper( void *context, const T *lhs, const T *rhs )
- {
- QSortContext_t *ctx = reinterpret_cast< QSortContext_t * >( context );
- if ( ctx->m_pLessFunc->Less( *lhs, *rhs, ctx->m_pLessContext ) )
- return -1;
- if ( ctx->m_pLessFunc->Less( *rhs, *lhs, ctx->m_pLessContext ) )
- return 1;
- return 0;
- }
-#else
- static int CompareHelper( const T *lhs, const T *rhs )
- {
- QSortContext_t *ctx = reinterpret_cast< QSortContext_t * >( g_pUtlSortVectorQSortContext );
- if ( ctx->m_pLessFunc->Less( *lhs, *rhs, ctx->m_pLessContext ) )
- return -1;
- if ( ctx->m_pLessFunc->Less( *rhs, *lhs, ctx->m_pLessContext ) )
- return 1;
- return 0;
- }
-#endif
-
- void *m_pLessContext;
- bool m_bNeedsSort;
-
-private:
- void QuickSort( LessFunc& less, int X, int I );
-};
-
-
-//-----------------------------------------------------------------------------
-// constructor
-//-----------------------------------------------------------------------------
-template <class T, class LessFunc, class BaseVector>
-CUtlSortVector<T, LessFunc, BaseVector>::CUtlSortVector( int nGrowSize, int initSize ) :
- m_pLessContext(NULL), BaseVector( nGrowSize, initSize ), m_bNeedsSort( false )
-{
-}
-
-template <class T, class LessFunc, class BaseVector>
-CUtlSortVector<T, LessFunc, BaseVector>::CUtlSortVector( T* pMemory, int numElements ) :
- m_pLessContext(NULL), BaseVector( pMemory, numElements ), m_bNeedsSort( false )
-{
-}
-
-//-----------------------------------------------------------------------------
-// Allows methods to set a context to be used with the less function..
-//-----------------------------------------------------------------------------
-template <class T, class LessFunc, class BaseVector>
-void CUtlSortVector<T, LessFunc, BaseVector>::SetLessContext( void *pCtx )
-{
- m_pLessContext = pCtx;
-}
-
-//-----------------------------------------------------------------------------
-// grows the vector
-//-----------------------------------------------------------------------------
-template <class T, class LessFunc, class BaseVector>
-int CUtlSortVector<T, LessFunc, BaseVector>::Insert( const T& src )
-{
- AssertFatal( !m_bNeedsSort );
-
- int pos = FindLessOrEqual( src ) + 1;
- this->GrowVector();
- this->ShiftElementsRight(pos);
- CopyConstruct<T>( &this->Element(pos), src );
- return pos;
-}
-
-template <class T, class LessFunc, class BaseVector>
-int CUtlSortVector<T, LessFunc, BaseVector>::InsertNoSort( const T& src )
-{
- m_bNeedsSort = true;
- int lastElement = BaseVector::m_Size;
- // Just stick the new element at the end of the vector, but don't do a sort
- this->GrowVector();
- this->ShiftElementsRight(lastElement);
- CopyConstruct( &this->Element(lastElement), src );
- return lastElement;
-}
-
-template <class T, class LessFunc, class BaseVector>
-void CUtlSortVector<T, LessFunc, BaseVector>::QuickSort( LessFunc& less, int nLower, int nUpper )
-{
-#ifdef _WIN32
- typedef int (__cdecl *QSortCompareFunc_t)(void *context, const void *, const void *);
- if ( this->Count() > 1 )
- {
- QSortContext_t ctx;
- ctx.m_pLessContext = m_pLessContext;
- ctx.m_pLessFunc = &less;
-
- qsort_s( Base(), Count(), sizeof(T), (QSortCompareFunc_t)&CUtlSortVector<T, LessFunc>::CompareHelper, &ctx );
- }
-#else
- typedef int (__cdecl *QSortCompareFunc_t)( const void *, const void *);
- if ( this->Count() > 1 )
- {
- QSortContext_t ctx;
- ctx.m_pLessContext = m_pLessContext;
- ctx.m_pLessFunc = &less;
- g_pUtlSortVectorQSortContext = &ctx;
-
- qsort( this->Base(), this->Count(), sizeof(T), (QSortCompareFunc_t)&CUtlSortVector<T, LessFunc>::CompareHelper );
- }
-#endif
-}
-
-template <class T, class LessFunc, class BaseVector>
-void CUtlSortVector<T, LessFunc, BaseVector>::RedoSort( bool bForceSort /*= false */ )
-{
- if ( !m_bNeedsSort && !bForceSort )
- return;
-
- m_bNeedsSort = false;
- LessFunc less;
- QuickSort( less, 0, this->Count() - 1 );
-}
-
-//-----------------------------------------------------------------------------
-// finds a particular element
-//-----------------------------------------------------------------------------
-template <class T, class LessFunc, class BaseVector>
-int CUtlSortVector<T, LessFunc, BaseVector>::Find( const T& src ) const
-{
- AssertFatal( !m_bNeedsSort );
-
- LessFunc less;
-
- int start = 0, end = this->Count() - 1;
- while (start <= end)
- {
- int mid = (start + end) >> 1;
- if ( less.Less( this->Element(mid), src, m_pLessContext ) )
- {
- start = mid + 1;
- }
- else if ( less.Less( src, this->Element(mid), m_pLessContext ) )
- {
- end = mid - 1;
- }
- else
- {
- return mid;
- }
- }
- return -1;
-}
-
-
-//-----------------------------------------------------------------------------
-// finds a particular element
-//-----------------------------------------------------------------------------
-template <class T, class LessFunc, class BaseVector>
-int CUtlSortVector<T, LessFunc, BaseVector>::FindLessOrEqual( const T& src ) const
-{
- AssertFatal( !m_bNeedsSort );
-
- LessFunc less;
- int start = 0, end = this->Count() - 1;
- while (start <= end)
- {
- int mid = (start + end) >> 1;
- if ( less.Less( this->Element(mid), src, m_pLessContext ) )
- {
- start = mid + 1;
- }
- else if ( less.Less( src, this->Element(mid), m_pLessContext ) )
- {
- end = mid - 1;
- }
- else
- {
- return mid;
- }
- }
- return end;
-}
-
-template <class T, class LessFunc, class BaseVector>
-int CUtlSortVector<T, LessFunc, BaseVector>::FindLess( const T& src ) const
-{
- AssertFatal( !m_bNeedsSort );
-
- LessFunc less;
- int start = 0, end = this->Count() - 1;
- while (start <= end)
- {
- int mid = (start + end) >> 1;
- if ( less.Less( this->Element(mid), src, m_pLessContext ) )
- {
- start = mid + 1;
- }
- else
- {
- end = mid - 1;
- }
- }
- return end;
-}
-
-
-//-----------------------------------------------------------------------------
-// Removes a particular element
-//-----------------------------------------------------------------------------
-template <class T, class LessFunc, class BaseVector>
-void CUtlSortVector<T, LessFunc, BaseVector>::Remove( const T& search )
-{
- AssertFatal( !m_bNeedsSort );
-
- int pos = Find(search);
- if (pos != -1)
- {
- BaseVector::Remove(pos);
- }
-}
-
-template <class T, class LessFunc, class BaseVector>
-void CUtlSortVector<T, LessFunc, BaseVector>::Remove( int i )
-{
- BaseVector::Remove( i );
-}
-
-#endif // UTLSORTVECTOR_H
+//========= Copyright Valve Corporation, All rights reserved. ============// +// +// $Header: $ +// $NoKeywords: $ +// +// A growable array class that keeps all elements in order using binary search +//===========================================================================// + +#ifndef UTLSORTVECTOR_H +#define UTLSORTVECTOR_H + +#ifdef _WIN32 +#pragma once +#endif + +#include "utlvector.h" + + +//----------------------------------------------------------------------------- +// class CUtlSortVector: +// description: +// This in an sorted order-preserving vector. Items may be inserted or removed +// at any point in the vector. When an item is inserted, all elements are +// moved down by one element using memmove. When an item is removed, all +// elements are shifted back down. Items are searched for in the vector +// using a binary search technique. Clients must pass in a Less() function +// into the constructor of the vector to determine the sort order. +//----------------------------------------------------------------------------- + +#ifndef _WIN32 +// gcc has no qsort_s, so i need to use a static var to hold the sort context. this makes cutlsortvector _not_ thread sfae under linux +extern void *g_pUtlSortVectorQSortContext; +#endif + +template <class T> +class CUtlSortVectorDefaultLess +{ +public: + bool Less( const T& lhs, const T& rhs, void * ) + { + return lhs < rhs; + } +}; + +template <class T, class LessFunc = CUtlSortVectorDefaultLess<T>, class BaseVector = CUtlVector<T> > +class CUtlSortVector : public BaseVector +{ +public: + + // constructor + CUtlSortVector( int nGrowSize = 0, int initSize = 0 ); + CUtlSortVector( T* pMemory, int numElements ); + + // inserts (copy constructs) an element in sorted order into the list + int Insert( const T& src ); + + // Finds an element within the list using a binary search + int Find( const T& search ) const; + int FindLessOrEqual( const T& search ) const; + int FindLess( const T& search ) const; + + // Removes a particular element + void Remove( const T& search ); + void Remove( int i ); + + // Allows methods to set a context to be used with the less function.. + void SetLessContext( void *pCtx ); + + // Note that you can only use this index until sorting is redone!!! + int InsertNoSort( const T& src ); + void RedoSort( bool bForceSort = false ); + +protected: + // No copy constructor + CUtlSortVector( const CUtlSortVector<T, LessFunc> & ); + + // never call these; illegal for this class + int AddToHead(); + int AddToTail(); + int InsertBefore( int elem ); + int InsertAfter( int elem ); + int AddToHead( const T& src ); + int AddToTail( const T& src ); + int InsertBefore( int elem, const T& src ); + int InsertAfter( int elem, const T& src ); + int AddMultipleToHead( int num ); + int AddMultipleToTail( int num, const T *pToCopy=NULL ); + int InsertMultipleBefore( int elem, int num, const T *pToCopy=NULL ); + int InsertMultipleAfter( int elem, int num ); + int AddVectorToTail( CUtlVector<T> const &src ); + + struct QSortContext_t + { + void *m_pLessContext; + LessFunc *m_pLessFunc; + }; + +#ifdef _WIN32 + static int CompareHelper( void *context, const T *lhs, const T *rhs ) + { + QSortContext_t *ctx = reinterpret_cast< QSortContext_t * >( context ); + if ( ctx->m_pLessFunc->Less( *lhs, *rhs, ctx->m_pLessContext ) ) + return -1; + if ( ctx->m_pLessFunc->Less( *rhs, *lhs, ctx->m_pLessContext ) ) + return 1; + return 0; + } +#else + static int CompareHelper( const T *lhs, const T *rhs ) + { + QSortContext_t *ctx = reinterpret_cast< QSortContext_t * >( g_pUtlSortVectorQSortContext ); + if ( ctx->m_pLessFunc->Less( *lhs, *rhs, ctx->m_pLessContext ) ) + return -1; + if ( ctx->m_pLessFunc->Less( *rhs, *lhs, ctx->m_pLessContext ) ) + return 1; + return 0; + } +#endif + + void *m_pLessContext; + bool m_bNeedsSort; + +private: + void QuickSort( LessFunc& less, int X, int I ); +}; + + +//----------------------------------------------------------------------------- +// constructor +//----------------------------------------------------------------------------- +template <class T, class LessFunc, class BaseVector> +CUtlSortVector<T, LessFunc, BaseVector>::CUtlSortVector( int nGrowSize, int initSize ) : + m_pLessContext(NULL), BaseVector( nGrowSize, initSize ), m_bNeedsSort( false ) +{ +} + +template <class T, class LessFunc, class BaseVector> +CUtlSortVector<T, LessFunc, BaseVector>::CUtlSortVector( T* pMemory, int numElements ) : + m_pLessContext(NULL), BaseVector( pMemory, numElements ), m_bNeedsSort( false ) +{ +} + +//----------------------------------------------------------------------------- +// Allows methods to set a context to be used with the less function.. +//----------------------------------------------------------------------------- +template <class T, class LessFunc, class BaseVector> +void CUtlSortVector<T, LessFunc, BaseVector>::SetLessContext( void *pCtx ) +{ + m_pLessContext = pCtx; +} + +//----------------------------------------------------------------------------- +// grows the vector +//----------------------------------------------------------------------------- +template <class T, class LessFunc, class BaseVector> +int CUtlSortVector<T, LessFunc, BaseVector>::Insert( const T& src ) +{ + AssertFatal( !m_bNeedsSort ); + + int pos = FindLessOrEqual( src ) + 1; + this->GrowVector(); + this->ShiftElementsRight(pos); + CopyConstruct<T>( &this->Element(pos), src ); + return pos; +} + +template <class T, class LessFunc, class BaseVector> +int CUtlSortVector<T, LessFunc, BaseVector>::InsertNoSort( const T& src ) +{ + m_bNeedsSort = true; + int lastElement = BaseVector::m_Size; + // Just stick the new element at the end of the vector, but don't do a sort + this->GrowVector(); + this->ShiftElementsRight(lastElement); + CopyConstruct( &this->Element(lastElement), src ); + return lastElement; +} + +template <class T, class LessFunc, class BaseVector> +void CUtlSortVector<T, LessFunc, BaseVector>::QuickSort( LessFunc& less, int nLower, int nUpper ) +{ +#ifdef _WIN32 + typedef int (__cdecl *QSortCompareFunc_t)(void *context, const void *, const void *); + if ( this->Count() > 1 ) + { + QSortContext_t ctx; + ctx.m_pLessContext = m_pLessContext; + ctx.m_pLessFunc = &less; + + qsort_s( Base(), Count(), sizeof(T), (QSortCompareFunc_t)&CUtlSortVector<T, LessFunc>::CompareHelper, &ctx ); + } +#else + typedef int (__cdecl *QSortCompareFunc_t)( const void *, const void *); + if ( this->Count() > 1 ) + { + QSortContext_t ctx; + ctx.m_pLessContext = m_pLessContext; + ctx.m_pLessFunc = &less; + g_pUtlSortVectorQSortContext = &ctx; + + qsort( this->Base(), this->Count(), sizeof(T), (QSortCompareFunc_t)&CUtlSortVector<T, LessFunc>::CompareHelper ); + } +#endif +} + +template <class T, class LessFunc, class BaseVector> +void CUtlSortVector<T, LessFunc, BaseVector>::RedoSort( bool bForceSort /*= false */ ) +{ + if ( !m_bNeedsSort && !bForceSort ) + return; + + m_bNeedsSort = false; + LessFunc less; + QuickSort( less, 0, this->Count() - 1 ); +} + +//----------------------------------------------------------------------------- +// finds a particular element +//----------------------------------------------------------------------------- +template <class T, class LessFunc, class BaseVector> +int CUtlSortVector<T, LessFunc, BaseVector>::Find( const T& src ) const +{ + AssertFatal( !m_bNeedsSort ); + + LessFunc less; + + int start = 0, end = this->Count() - 1; + while (start <= end) + { + int mid = (start + end) >> 1; + if ( less.Less( this->Element(mid), src, m_pLessContext ) ) + { + start = mid + 1; + } + else if ( less.Less( src, this->Element(mid), m_pLessContext ) ) + { + end = mid - 1; + } + else + { + return mid; + } + } + return -1; +} + + +//----------------------------------------------------------------------------- +// finds a particular element +//----------------------------------------------------------------------------- +template <class T, class LessFunc, class BaseVector> +int CUtlSortVector<T, LessFunc, BaseVector>::FindLessOrEqual( const T& src ) const +{ + AssertFatal( !m_bNeedsSort ); + + LessFunc less; + int start = 0, end = this->Count() - 1; + while (start <= end) + { + int mid = (start + end) >> 1; + if ( less.Less( this->Element(mid), src, m_pLessContext ) ) + { + start = mid + 1; + } + else if ( less.Less( src, this->Element(mid), m_pLessContext ) ) + { + end = mid - 1; + } + else + { + return mid; + } + } + return end; +} + +template <class T, class LessFunc, class BaseVector> +int CUtlSortVector<T, LessFunc, BaseVector>::FindLess( const T& src ) const +{ + AssertFatal( !m_bNeedsSort ); + + LessFunc less; + int start = 0, end = this->Count() - 1; + while (start <= end) + { + int mid = (start + end) >> 1; + if ( less.Less( this->Element(mid), src, m_pLessContext ) ) + { + start = mid + 1; + } + else + { + end = mid - 1; + } + } + return end; +} + + +//----------------------------------------------------------------------------- +// Removes a particular element +//----------------------------------------------------------------------------- +template <class T, class LessFunc, class BaseVector> +void CUtlSortVector<T, LessFunc, BaseVector>::Remove( const T& search ) +{ + AssertFatal( !m_bNeedsSort ); + + int pos = Find(search); + if (pos != -1) + { + BaseVector::Remove(pos); + } +} + +template <class T, class LessFunc, class BaseVector> +void CUtlSortVector<T, LessFunc, BaseVector>::Remove( int i ) +{ + BaseVector::Remove( i ); +} + +#endif // UTLSORTVECTOR_H |