mirror of
https://github.com/FWGS/xash3d-fwgs
synced 2024-11-23 02:15:55 +01:00
606 lines
14 KiB
C++
606 lines
14 KiB
C++
//=========== (C) Copyright 1999 Valve, L.L.C. All rights reserved. ===========
|
|
//
|
|
// The copyright to the contents herein is the property of Valve, L.L.C.
|
|
// The contents may be used and/or copied only with the written permission of
|
|
// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
|
|
// the agreement/contract under which the contents have been supplied.
|
|
//
|
|
// $Header: $
|
|
// $NoKeywords: $
|
|
//
|
|
// A growable array class that maintains a free list and keeps elements
|
|
// in the same location
|
|
//=============================================================================
|
|
|
|
#ifndef UTLVECTOR_H
|
|
#define UTLVECTOR_H
|
|
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include "port.h"
|
|
#include <string.h>
|
|
#include "utlmemory.h"
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// The CUtlVector class:
|
|
// A growable array class which doubles in size by default.
|
|
// It will always keep all elements consecutive in memory, and may move the
|
|
// elements around in memory (via a realloc) when elements are inserted or
|
|
// removed. Clients should therefore refer to the elements of the vector
|
|
// by index (they should *never* maintain pointers to elements in the vector).
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
class CUtlVector
|
|
{
|
|
public:
|
|
typedef T ElemType_t;
|
|
|
|
// constructor, destructor
|
|
CUtlVector( int growSize = 0, int initSize = 0 );
|
|
CUtlVector( T* pMemory, int numElements );
|
|
~CUtlVector();
|
|
|
|
// Copy the array.
|
|
CUtlVector<T>& operator=( const CUtlVector<T> &other );
|
|
|
|
// element access
|
|
T& operator[]( int i );
|
|
T const& operator[]( int i ) const;
|
|
T& Element( int i );
|
|
T const& Element( int i ) const;
|
|
|
|
// Gets the base address (can change when adding elements!)
|
|
T* Base();
|
|
T const* Base() const;
|
|
|
|
// Returns the number of elements in the vector
|
|
// SIZE IS DEPRECATED!
|
|
int Count() const;
|
|
int Size() const; // don't use me!
|
|
|
|
// Is element index valid?
|
|
bool IsValidIndex( int i ) const;
|
|
static int InvalidIndex( void );
|
|
|
|
// Adds an element, uses default constructor
|
|
int AddToHead();
|
|
int AddToTail();
|
|
int InsertBefore( int elem );
|
|
int InsertAfter( int elem );
|
|
|
|
// Adds an element, uses copy constructor
|
|
int AddToHead( T const& src );
|
|
int AddToTail( T const& src );
|
|
int InsertBefore( int elem, T const& src );
|
|
int InsertAfter( int elem, T const& src );
|
|
|
|
// Adds multiple elements, uses default constructor
|
|
int AddMultipleToHead( int num );
|
|
int AddMultipleToTail( int num, const T *pToCopy=NULL );
|
|
int InsertMultipleBefore( int elem, int num, const T *pToCopy=NULL ); // If pToCopy is set, then it's an array of length 'num' and
|
|
int InsertMultipleAfter( int elem, int num );
|
|
|
|
// Calls RemoveAll() then AddMultipleToTail.
|
|
void SetSize( int size );
|
|
void SetCount( int count );
|
|
|
|
// Calls SetSize and copies each element.
|
|
void CopyArray( T const *pArray, int size );
|
|
|
|
// Add the specified array to the tail.
|
|
int AddVectorToTail( CUtlVector<T> const &src );
|
|
|
|
// Finds an element (element needs operator== defined)
|
|
int Find( T const& src ) const;
|
|
|
|
bool HasElement( T const& src );
|
|
|
|
// Makes sure we have enough memory allocated to store a requested # of elements
|
|
void EnsureCapacity( int num );
|
|
|
|
// Makes sure we have at least this many elements
|
|
void EnsureCount( int num );
|
|
|
|
// Element removal
|
|
void FastRemove( int elem ); // doesn't preserve order
|
|
void Remove( int elem ); // preserves order, shifts elements
|
|
void FindAndRemove( T const& src ); // removes first occurrence of src, preserves order, shifts elements
|
|
void RemoveMultiple( int elem, int num ); // preserves order, shifts elements
|
|
void RemoveAll(); // doesn't deallocate memory
|
|
|
|
// Memory deallocation
|
|
void Purge();
|
|
|
|
// Purges the list and calls delete on each element in it.
|
|
void PurgeAndDeleteElements();
|
|
|
|
// Set the size by which it grows when it needs to allocate more memory.
|
|
void SetGrowSize( int size );
|
|
|
|
protected:
|
|
// Can't copy this unless we explicitly do it!
|
|
CUtlVector( CUtlVector const& vec ) { Assert(0); }
|
|
|
|
// Grows the vector
|
|
void GrowVector( int num = 1 );
|
|
|
|
// Shifts elements....
|
|
void ShiftElementsRight( int elem, int num = 1 );
|
|
void ShiftElementsLeft( int elem, int num = 1 );
|
|
|
|
// For easier access to the elements through the debugger
|
|
void ResetDbgInfo();
|
|
|
|
CUtlMemory<T> m_Memory;
|
|
int m_Size;
|
|
|
|
// For easier access to the elements through the debugger
|
|
// it's in release builds so this can be used in libraries correctly
|
|
T *m_pElements;
|
|
};
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// For easier access to the elements through the debugger
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline void CUtlVector<T>::ResetDbgInfo()
|
|
{
|
|
m_pElements = m_Memory.Base();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// constructor, destructor
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline CUtlVector<T>::CUtlVector( int growSize, int initSize ) :
|
|
m_Memory(growSize, initSize), m_Size(0)
|
|
{
|
|
ResetDbgInfo();
|
|
}
|
|
|
|
template< class T >
|
|
inline CUtlVector<T>::CUtlVector( T* pMemory, int numElements ) :
|
|
m_Memory(pMemory, numElements), m_Size(0)
|
|
{
|
|
ResetDbgInfo();
|
|
}
|
|
|
|
template< class T >
|
|
inline CUtlVector<T>::~CUtlVector()
|
|
{
|
|
Purge();
|
|
}
|
|
|
|
template<class T>
|
|
inline CUtlVector<T>& CUtlVector<T>::operator=( const CUtlVector<T> &other )
|
|
{
|
|
CopyArray( other.Base(), other.Count() );
|
|
return *this;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// element access
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline T& CUtlVector<T>::operator[]( int i )
|
|
{
|
|
Assert( IsValidIndex(i) );
|
|
return m_Memory[i];
|
|
}
|
|
|
|
template< class T >
|
|
inline T const& CUtlVector<T>::operator[]( int i ) const
|
|
{
|
|
Assert( IsValidIndex(i) );
|
|
return m_Memory[i];
|
|
}
|
|
|
|
template< class T >
|
|
inline T& CUtlVector<T>::Element( int i )
|
|
{
|
|
Assert( IsValidIndex(i) );
|
|
return m_Memory[i];
|
|
}
|
|
|
|
template< class T >
|
|
inline T const& CUtlVector<T>::Element( int i ) const
|
|
{
|
|
Assert( IsValidIndex(i) );
|
|
return m_Memory[i];
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Gets the base address (can change when adding elements!)
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline T* CUtlVector<T>::Base()
|
|
{
|
|
return m_Memory.Base();
|
|
}
|
|
|
|
template< class T >
|
|
inline T const* CUtlVector<T>::Base() const
|
|
{
|
|
return m_Memory.Base();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Count
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::Size() const
|
|
{
|
|
return m_Size;
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::Count() const
|
|
{
|
|
return m_Size;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Is element index valid?
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline bool CUtlVector<T>::IsValidIndex( int i ) const
|
|
{
|
|
return (i >= 0) && (i < m_Size);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Returns in invalid index
|
|
//-----------------------------------------------------------------------------
|
|
template< class T >
|
|
inline int CUtlVector<T>::InvalidIndex( void )
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Grows the vector
|
|
//-----------------------------------------------------------------------------
|
|
template< class T >
|
|
void CUtlVector<T>::GrowVector( int num )
|
|
{
|
|
if (m_Size + num - 1 >= m_Memory.NumAllocated())
|
|
{
|
|
m_Memory.Grow( m_Size + num - m_Memory.NumAllocated() );
|
|
}
|
|
|
|
m_Size += num;
|
|
ResetDbgInfo();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Makes sure we have enough memory allocated to store a requested # of elements
|
|
//-----------------------------------------------------------------------------
|
|
template< class T >
|
|
void CUtlVector<T>::EnsureCapacity( int num )
|
|
{
|
|
m_Memory.EnsureCapacity(num);
|
|
ResetDbgInfo();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Makes sure we have at least this many elements
|
|
//-----------------------------------------------------------------------------
|
|
template< class T >
|
|
void CUtlVector<T>::EnsureCount( int num )
|
|
{
|
|
if (Count() < num)
|
|
AddMultipleToTail( num - Count() );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Shifts elements
|
|
//-----------------------------------------------------------------------------
|
|
template< class T >
|
|
void CUtlVector<T>::ShiftElementsRight( int elem, int num )
|
|
{
|
|
Assert( IsValidIndex(elem) || ( m_Size == 0 ) || ( num == 0 ));
|
|
int numToMove = m_Size - elem - num;
|
|
if ((numToMove > 0) && (num > 0))
|
|
memmove( &Element(elem+num), &Element(elem), numToMove * sizeof(T) );
|
|
}
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::ShiftElementsLeft( int elem, int num )
|
|
{
|
|
Assert( IsValidIndex(elem) || ( m_Size == 0 ) || ( num == 0 ));
|
|
int numToMove = m_Size - elem - num;
|
|
if ((numToMove > 0) && (num > 0))
|
|
{
|
|
memmove( &Element(elem), &Element(elem+num), numToMove * sizeof(T) );
|
|
|
|
#ifdef _DEBUG
|
|
memset( &Element(m_Size-num), 0xDD, num * sizeof(T) );
|
|
#endif
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Adds an element, uses default constructor
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::AddToHead()
|
|
{
|
|
return InsertBefore(0);
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::AddToTail()
|
|
{
|
|
return InsertBefore( m_Size );
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::InsertAfter( int elem )
|
|
{
|
|
return InsertBefore( elem + 1 );
|
|
}
|
|
|
|
template< class T >
|
|
int CUtlVector<T>::InsertBefore( int elem )
|
|
{
|
|
// Can insert at the end
|
|
Assert( (elem == Count()) || IsValidIndex(elem) );
|
|
|
|
GrowVector();
|
|
ShiftElementsRight(elem);
|
|
Construct( &Element(elem) );
|
|
return elem;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Adds an element, uses copy constructor
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::AddToHead( T const& src )
|
|
{
|
|
return InsertBefore( 0, src );
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::AddToTail( T const& src )
|
|
{
|
|
return InsertBefore( m_Size, src );
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::InsertAfter( int elem, T const& src )
|
|
{
|
|
return InsertBefore( elem + 1, src );
|
|
}
|
|
|
|
template< class T >
|
|
int CUtlVector<T>::InsertBefore( int elem, T const& src )
|
|
{
|
|
// Can insert at the end
|
|
Assert( (elem == Count()) || IsValidIndex(elem) );
|
|
|
|
GrowVector();
|
|
ShiftElementsRight(elem);
|
|
CopyConstruct( &Element(elem), src );
|
|
return elem;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Adds multiple elements, uses default constructor
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::AddMultipleToHead( int num )
|
|
{
|
|
return InsertMultipleBefore( 0, num );
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::AddMultipleToTail( int num, const T *pToCopy )
|
|
{
|
|
return InsertMultipleBefore( m_Size, num, pToCopy );
|
|
}
|
|
|
|
template< class T >
|
|
int CUtlVector<T>::InsertMultipleAfter( int elem, int num )
|
|
{
|
|
return InsertMultipleBefore( elem + 1, num );
|
|
}
|
|
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::SetCount( int count )
|
|
{
|
|
RemoveAll();
|
|
AddMultipleToTail( count );
|
|
}
|
|
|
|
template< class T >
|
|
inline void CUtlVector<T>::SetSize( int size )
|
|
{
|
|
SetCount( size );
|
|
}
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::CopyArray( T const *pArray, int size )
|
|
{
|
|
SetSize( size );
|
|
for( int i=0; i < size; i++ )
|
|
(*this)[i] = pArray[i];
|
|
}
|
|
|
|
template< class T >
|
|
int CUtlVector<T>::AddVectorToTail( CUtlVector const &src )
|
|
{
|
|
int base = Count();
|
|
|
|
// Make space.
|
|
AddMultipleToTail( src.Count() );
|
|
|
|
// Copy the elements.
|
|
for ( int i=0; i < src.Count(); i++ )
|
|
(*this)[base + i] = src[i];
|
|
|
|
return base;
|
|
}
|
|
|
|
template< class T >
|
|
inline int CUtlVector<T>::InsertMultipleBefore( int elem, int num, const T *pToInsert )
|
|
{
|
|
if( num == 0 )
|
|
return elem;
|
|
|
|
// Can insert at the end
|
|
Assert( (elem == Count()) || IsValidIndex(elem) );
|
|
|
|
GrowVector(num);
|
|
ShiftElementsRight(elem, num);
|
|
|
|
// Invoke default constructors
|
|
for (int i = 0; i < num; ++i)
|
|
Construct( &Element(elem+i) );
|
|
|
|
// Copy stuff in?
|
|
if ( pToInsert )
|
|
{
|
|
for ( int i=0; i < num; i++ )
|
|
{
|
|
Element( elem+i ) = pToInsert[i];
|
|
}
|
|
}
|
|
|
|
return elem;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Finds an element (element needs operator== defined)
|
|
//-----------------------------------------------------------------------------
|
|
template< class T >
|
|
int CUtlVector<T>::Find( T const& src ) const
|
|
{
|
|
for ( int i = 0; i < Count(); ++i )
|
|
{
|
|
if (Element(i) == src)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
template< class T >
|
|
bool CUtlVector<T>::HasElement( T const& src )
|
|
{
|
|
return ( Find(src) >= 0 );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Element removal
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::FastRemove( int elem )
|
|
{
|
|
Assert( IsValidIndex(elem) );
|
|
|
|
Destruct( &Element(elem) );
|
|
if (m_Size > 0)
|
|
{
|
|
memcpy( &Element(elem), &Element(m_Size-1), sizeof(T) );
|
|
--m_Size;
|
|
}
|
|
}
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::Remove( int elem )
|
|
{
|
|
Destruct( &Element(elem) );
|
|
ShiftElementsLeft(elem);
|
|
--m_Size;
|
|
}
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::FindAndRemove( T const& src )
|
|
{
|
|
int elem = Find( src );
|
|
if ( elem != -1 )
|
|
{
|
|
Remove( elem );
|
|
}
|
|
}
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::RemoveMultiple( int elem, int num )
|
|
{
|
|
Assert( IsValidIndex(elem) );
|
|
Assert( elem + num <= Count() );
|
|
|
|
for (int i = elem + num; --i >= elem; )
|
|
Destruct(&Element(i));
|
|
|
|
ShiftElementsLeft(elem, num);
|
|
m_Size -= num;
|
|
}
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::RemoveAll()
|
|
{
|
|
for (int i = m_Size; --i >= 0; )
|
|
Destruct(&Element(i));
|
|
|
|
m_Size = 0;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Memory deallocation
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::Purge()
|
|
{
|
|
RemoveAll();
|
|
m_Memory.Purge( );
|
|
ResetDbgInfo();
|
|
}
|
|
|
|
|
|
template<class T>
|
|
inline void CUtlVector<T>::PurgeAndDeleteElements()
|
|
{
|
|
for( int i=0; i < m_Size; i++ )
|
|
delete Element(i);
|
|
|
|
Purge();
|
|
}
|
|
|
|
|
|
template< class T >
|
|
void CUtlVector<T>::SetGrowSize( int size )
|
|
{
|
|
m_Memory.SetGrowSize( size );
|
|
}
|
|
|
|
|
|
#endif//UTLVECTOR_H
|