mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
2.2 KiB
119 lines
2.2 KiB
#ifndef __ARRAY_HXX_INCLUDED__
|
|
#define __ARRAY_HXX_INCLUDED__
|
|
|
|
#pragma warning(disable:4710) // inline fn not expanded (retail warning)
|
|
|
|
template <class T> class CAutoArray
|
|
{
|
|
public:
|
|
CAutoArray();
|
|
virtual ~CAutoArray();
|
|
int Size() { return _iHighestItemNum; }
|
|
bool EnsureSize(int minSize);
|
|
|
|
bool GetAt( int index, T* pRet );
|
|
bool Set( int index, T& val );
|
|
bool Append( T& val );
|
|
|
|
void Empty();
|
|
|
|
private:
|
|
T *_pArray;
|
|
int _iArraySize;
|
|
int _iHighestItemNum;
|
|
|
|
enum { ARRAY_GROWTH_GRANULARITY = 4 };
|
|
};
|
|
|
|
template <class T>
|
|
CAutoArray<T>::CAutoArray() :
|
|
_pArray( NULL ),
|
|
_iArraySize( 0 ),
|
|
_iHighestItemNum( 0 )
|
|
{
|
|
|
|
}
|
|
|
|
template <class T>
|
|
CAutoArray<T>::~CAutoArray()
|
|
{
|
|
if ( _pArray ) {
|
|
delete [] _pArray;
|
|
}
|
|
}
|
|
|
|
template <class T>
|
|
bool CAutoArray<T>::EnsureSize(int minSize)
|
|
{
|
|
assert( minSize > 0 );
|
|
int i;
|
|
if ( minSize > _iArraySize ) {
|
|
T* pNewArray = new T[minSize+ARRAY_GROWTH_GRANULARITY];
|
|
if ( pNewArray ) {
|
|
if ( _pArray ) {
|
|
for (i=0 ; i < _iHighestItemNum ; ++i) {
|
|
pNewArray[i] = _pArray[i];
|
|
}
|
|
delete [] _pArray;
|
|
}
|
|
_pArray = pNewArray;
|
|
_iArraySize = minSize+ARRAY_GROWTH_GRANULARITY;
|
|
return true; // new array alloc'ed/copied
|
|
}
|
|
return false; // failed to create new array
|
|
}
|
|
return true;
|
|
}
|
|
|
|
template <class T>
|
|
bool CAutoArray<T>::GetAt( int index, T* pRet )
|
|
{
|
|
if ( index < _iArraySize ) {
|
|
*pRet = _pArray[index];
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template <class T>
|
|
bool CAutoArray<T>::Set( int index, T& val )
|
|
{
|
|
if ( index < _iArraySize ) {
|
|
_pArray[index] = val;
|
|
if ( index+1 > _iHighestItemNum ) {
|
|
_iHighestItemNum = index+1;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
bool CAutoArray<T>::Append( T& val )
|
|
{
|
|
unsigned int iIndex = Size();
|
|
|
|
if (EnsureSize(iIndex + 1))
|
|
{
|
|
return Set(iIndex, val);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
void CAutoArray<T>::Empty()
|
|
{
|
|
if ( _pArray ) {
|
|
delete [] _pArray;
|
|
}
|
|
|
|
_pArray = NULL;
|
|
_iHighestItemNum = 0;
|
|
}
|
|
|
|
|
|
#endif // __ARRAY_HXX_INCLUDED__
|
|
|