mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-22 22:27:05 +00:00
333 lines
8.5 KiB
C++
333 lines
8.5 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//
|
|
// A growable array class that maintains a free list and keeps elements
|
|
// in the same location
|
|
//=============================================================================//
|
|
|
|
#ifndef UTLARRAY_H
|
|
#define UTLARRAY_H
|
|
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include "tier0/platform.h"
|
|
#include "tier0/dbg.h"
|
|
#include "vstdlib/random.h"
|
|
|
|
#define FOR_EACH_ARRAY( vecName, iteratorName ) \
|
|
for ( int iteratorName = 0; (vecName).IsUtlArray && iteratorName < (vecName).Count(); iteratorName++ )
|
|
#define FOR_EACH_ARRAY_BACK( vecName, iteratorName ) \
|
|
for ( int iteratorName = (vecName).Count()-1; (vecName).IsUtlArray && iteratorName >= 0; iteratorName-- )
|
|
|
|
// utlarray derives from this so we can do the type check above
|
|
struct base_array_t
|
|
{
|
|
public:
|
|
static const bool IsUtlArray = true; // Used to match this at compiletime
|
|
};
|
|
|
|
#if defined( GNUC ) && defined( DEBUG )
|
|
// gcc in debug doesn't optimize away the need for the storage of IsUtlArray so make one here
|
|
// as this is in a shared header use SELECTANY to make it throw away the dupe symbols
|
|
const bool base_array_t::IsUtlArray SELECTANY;
|
|
#endif
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template< class T, size_t MAX_SIZE >
|
|
class CUtlArray : public base_array_t
|
|
{
|
|
public:
|
|
typedef T ElemType_t;
|
|
typedef T* iterator;
|
|
typedef const T* const_iterator;
|
|
|
|
CUtlArray();
|
|
CUtlArray( T* pMemory, size_t count );
|
|
~CUtlArray();
|
|
|
|
CUtlArray<T, MAX_SIZE>& operator=( const CUtlArray<T, MAX_SIZE> &other );
|
|
CUtlArray( CUtlArray const& vec );
|
|
|
|
// element access
|
|
T& operator[]( int i );
|
|
const T& operator[]( int i ) const;
|
|
T& Element( int i );
|
|
const T& Element( int i ) const;
|
|
T& Random();
|
|
const T& Random() const;
|
|
|
|
// STL compatible member functions. These allow easier use of std::sort
|
|
// and they are forward compatible with the C++ 11 range-based for loops.
|
|
iterator begin();
|
|
const_iterator begin() const;
|
|
iterator end();
|
|
const_iterator end() const;
|
|
|
|
T* Base();
|
|
const T* Base() const;
|
|
|
|
// Returns the number of elements in the array, NumAllocated() is included for consistency with UtlVector
|
|
int Count() const;
|
|
int NumAllocated() const;
|
|
|
|
// Is element index valid?
|
|
bool IsValidIndex( int i ) const;
|
|
static int InvalidIndex();
|
|
|
|
void CopyArray( const T *pArray, size_t count );
|
|
|
|
void Swap( CUtlArray< T, MAX_SIZE > &vec );
|
|
|
|
// Finds an element (element needs operator== defined)
|
|
int Find( const T& src ) const;
|
|
void FillWithValue( const T& src );
|
|
|
|
bool HasElement( const T& src ) const;
|
|
|
|
// calls delete on each element in it.
|
|
void DeleteElements();
|
|
|
|
void Sort( int (__cdecl *pfnCompare)(const T *, const T *) );
|
|
|
|
protected:
|
|
T m_Memory[ MAX_SIZE ];
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// constructor, destructor
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline CUtlArray<T, MAX_SIZE>::CUtlArray()
|
|
{
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline CUtlArray<T, MAX_SIZE>::CUtlArray( T* pMemory, size_t count )
|
|
{
|
|
CopyArray( pMemory, count );
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline CUtlArray<T, MAX_SIZE>::~CUtlArray()
|
|
{
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline CUtlArray<T, MAX_SIZE>& CUtlArray<T, MAX_SIZE>::operator=( const CUtlArray<T, MAX_SIZE> &other )
|
|
{
|
|
if ( this != &other )
|
|
{
|
|
for ( size_t n = 0; n < MAX_SIZE; ++n )
|
|
{
|
|
m_Memory[n] = other.m_Memory[n];
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline CUtlArray<T, MAX_SIZE>::CUtlArray( CUtlArray const& vec )
|
|
{
|
|
for ( size_t n = 0; n < MAX_SIZE; ++n )
|
|
{
|
|
m_Memory[n] = vec.m_Memory[n];
|
|
}
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
typename CUtlArray<T, MAX_SIZE>::iterator CUtlArray<T, MAX_SIZE>::begin()
|
|
{
|
|
return Base();
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
typename CUtlArray<T, MAX_SIZE>::const_iterator CUtlArray<T, MAX_SIZE>::begin() const
|
|
{
|
|
return Base();
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
typename CUtlArray<T, MAX_SIZE>::iterator CUtlArray<T, MAX_SIZE>::end()
|
|
{
|
|
return Base() + Count();
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
typename CUtlArray<T, MAX_SIZE>::const_iterator CUtlArray<T, MAX_SIZE>::end() const
|
|
{
|
|
return Base() + Count();
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline T *CUtlArray<T, MAX_SIZE>::Base()
|
|
{
|
|
return &m_Memory[0];
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline const T *CUtlArray<T, MAX_SIZE>::Base() const
|
|
{
|
|
return &m_Memory[0];
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// element access
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline T& CUtlArray<T, MAX_SIZE>::operator[]( int i )
|
|
{
|
|
Assert( IsValidIndex( i ) );
|
|
return m_Memory[ i ];
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline const T& CUtlArray<T, MAX_SIZE>::operator[]( int i ) const
|
|
{
|
|
Assert( IsValidIndex( i ) );
|
|
return m_Memory[ i ];
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline T& CUtlArray<T, MAX_SIZE>::Element( int i )
|
|
{
|
|
Assert( IsValidIndex( i ) );
|
|
return m_Memory[ i ];
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline const T& CUtlArray<T, MAX_SIZE>::Element( int i ) const
|
|
{
|
|
Assert( IsValidIndex( i ) );
|
|
return m_Memory[ i ];
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline T& CUtlArray<T, MAX_SIZE>::Random()
|
|
{
|
|
Assert( MAX_SIZE > 0 );
|
|
return m_Memory[ RandomInt( 0, MAX_SIZE - 1 ) ];
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline const T& CUtlArray<T, MAX_SIZE>::Random() const
|
|
{
|
|
Assert( MAX_SIZE > 0 );
|
|
return m_Memory[ RandomInt( 0, MAX_SIZE - 1 ) ];
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Count
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline int CUtlArray<T, MAX_SIZE>::Count() const
|
|
{
|
|
return (int)MAX_SIZE;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline int CUtlArray<T, MAX_SIZE>::NumAllocated() const
|
|
{
|
|
return (int)MAX_SIZE;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Is element index valid?
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline bool CUtlArray<T, MAX_SIZE>::IsValidIndex( int i ) const
|
|
{
|
|
return (i >= 0) && (i < MAX_SIZE);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Returns in invalid index
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline int CUtlArray<T, MAX_SIZE>::InvalidIndex()
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Sorts the vector
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
void CUtlArray<T, MAX_SIZE>::Sort( int (__cdecl *pfnCompare)(const T *, const T *) )
|
|
{
|
|
typedef int (__cdecl *QSortCompareFunc_t)(const void *, const void *);
|
|
if ( Count() <= 1 )
|
|
return;
|
|
|
|
qsort( Base(), Count(), sizeof(T), (QSortCompareFunc_t)(pfnCompare) );
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
void CUtlArray<T, MAX_SIZE>::CopyArray( const T *pArray, size_t count )
|
|
{
|
|
Assert( count < MAX_SIZE );
|
|
|
|
for ( size_t n = 0; n < count; ++n )
|
|
{
|
|
m_Memory[n] = pArray[n];
|
|
}
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
void CUtlArray<T, MAX_SIZE>::Swap( CUtlArray< T, MAX_SIZE > &vec )
|
|
{
|
|
for ( size_t n = 0; n < MAX_SIZE; ++n )
|
|
{
|
|
V_swap( m_Memory[n], vec.m_Memory[n] );
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Finds an element (element needs operator== defined)
|
|
//-----------------------------------------------------------------------------
|
|
template< typename T, size_t MAX_SIZE >
|
|
int CUtlArray<T, MAX_SIZE>::Find( const T& src ) const
|
|
{
|
|
for ( int i = 0; i < Count(); ++i )
|
|
{
|
|
if (Element(i) == src)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
void CUtlArray<T, MAX_SIZE>::FillWithValue( const T& src )
|
|
{
|
|
for ( int i = 0; i < Count(); i++ )
|
|
{
|
|
Element(i) = src;
|
|
}
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
bool CUtlArray<T, MAX_SIZE>::HasElement( const T& src ) const
|
|
{
|
|
return ( Find(src) >= 0 );
|
|
}
|
|
|
|
template< typename T, size_t MAX_SIZE >
|
|
inline void CUtlArray<T, MAX_SIZE>::DeleteElements()
|
|
{
|
|
for( int i=0; i < MAX_SIZE; i++ )
|
|
{
|
|
delete Element(i);
|
|
}
|
|
}
|
|
|
|
#endif // UTLARRAY_H
|