ugk_memopr.cpp

来自「linux下一款GIS程序源码」· C++ 代码 · 共 81 行

// ugk_memopr.cpp 
//
///////////////////////////////////////////////////////////////////////

#include "ugk_memopr.h"

#include "ugk_errhandle.h" 

void *UGK_Calloc( size_t nCount, size_t nSize )
{
	void *pReturn;
	if( nCount*nSize == 0 )
		return NULL;
	pReturn = calloc( nCount, nSize);
	
	if( pReturn==NULL )
	{
		UGKError( ET_Fatal,UGKErr_OutOfMemory,
			      "UGK_Calloc(): Out of memory allocating %d bytes.\n",
				  nCount*nSize );

	}
	return pReturn;

}


void *UGK_Malloc( size_t nSize )
{
    void        *pReturn;

    if( nSize == 0 )
        return NULL;
    
    pReturn = malloc( nSize );
    if( pReturn == NULL )
    {
        UGKError( ET_Fatal, UGKErr_OutOfMemory,
                  "UGK_Malloc(): Out of memory allocating %d bytes.\n",
                  nSize );
    }

    return pReturn;
}


void * UGK_Realloc( void * pData, size_t nNewSize )
{
    void        *pReturn;

    if ( nNewSize == 0 )
    {
        UGK_Free(pData);
        return NULL;
    }

    if( pData == NULL )
        pReturn = UGK_Malloc( nNewSize );
    else
        pReturn = realloc( pData, nNewSize );
    
    if( pReturn == NULL )
    {
        UGKError( ET_Fatal, UGKErr_OutOfMemory,
                  "UGK_Realloc(): Out of memory allocating %d bytes.\n",
                  nNewSize );
    }

    return pReturn;
}



void UGK_Free(void *pData)
{
	if( pData==NULL )
		return;
	free(pData);
	//pData=NULL; //将指针置为NULL
}