救命呀，出现内存不足 ,我出1000分

Question

void CCad2vctDlg::ReadDxfLWPolyline(FILE *pFile)
{
    char str1[500];
    LineData *pCurLineData,*pPrevLineData;
    while(! feof(pFile) && ! ferror(pFile))
    {
        fscanf(pFile,"%s\n",str1);
        if(strcmp(str1,"LWPOLYLINE")==0)
        //if(strnicmp("LWPOLYLINE",str1,10)!=0)
        {
            
            pCurLineData=new LineData[sizeof(LineData)];
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",pCurLineData->AimCode);            pCurLineData->FeatureCode="C20";
            pCurLineData->LineMark=1;            fscanf(pFile,"%s\n",str1);
            if(strcmp(str1,"102")==0)
            //if(strnicmp("102",str1,3)!=0)
            {
                fscanf(pFile,"%s\n",str1);
                fscanf(pFile,"%s\n",str1);    
                fscanf(pFile,"%s\n",str1);
                fscanf(pFile,"%s\n",str1);
                
            }            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",pCurLineData->LayerName );            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
                        fscanf(pFile,"%s\n",str1);
            //fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%d\n",&pCurLineData->PointNum);            Point *LnPnt;
            LnPnt=new Point[pCurLineData->PointNum];
            pCurLineData->pMemberPoint=LnPnt;            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);
            fscanf(pFile,"%s\n",str1);            for(int i=0;i<pCurLineData->PointNum;i++)
            {                fscanf(pFile,"%s\n",str1);
                fscanf(pFile,"%f\n",&LnPnt[i].X);
                fscanf(pFile,"%s\n",str1);
                fscanf(pFile,"%f\n",&LnPnt[i].Y);
            }
            pCurLineData->pNext=NULL;
            if(LineFlag==0)
                pHeadLineData=pCurLineData;
            else
                pPrevLineData->pNext=pCurLineData;
            
            LineFlag=1;
            pPrevLineData=pCurLineData;
            delete pCurLineData;            pCurLineData=NULL;
            
        }
            
    }
    
    delete pPrevLineData;
    pPrevLineData=NULL;
}
 

Answer 1

太长了，不想看
是不是new完了没有delete

Answer 2

try
{...........};
catch(CMemoryException,e)
{.............};

Answer 3

new一个数组后，这样释放delete [] a;(a为数组名）。别忘了加[].!

Answer 4

现在知道你哪儿错了吧，你也知道你程序消耗了多少内存:有个while循环，分配数组，却每次没有释放干净！！

Answer 5

delete [] pCurLineData;
delete [] pPrevLineData;

Answer 6

还是不行
delete [] LnPnt；
是这样写吗？
放在什么位置？

Answer 7

还有一个方法..用boundschecker啦....很容易就找出内存泄漏错误了...在vckbase里有下..

Answer 8

我改用CList还是不行呀
struct LineDataItem
{
CString AimCode;
CString FeatureCode;
CString LayerName;
int LineMark;
int PointNum;
int ChildNum;
int* pMemberChild;
    Point* pMemberPoint;

};
class CLineData  
{
public:
CLineData();
virtual ~CLineData();
CList<LineDataItem,LineDataItem>  LineDataList;};void CCad2vctDlg::ReadDxfLWPolylineList(FILE *pFile)
{
char str1[500];
LineDataItem *pCurLineData;
while(! feof(pFile) && ! ferror(pFile))
{
fscanf(pFile,"%s\n",str1);
if(strcmp(str1,"LWPOLYLINE")==0)
//if(strnicmp("LWPOLYLINE",str1,10)!=0)
{

pCurLineData=new LineDataItem[sizeof(LineData)];
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",pCurLineData->AimCode); pCurLineData->FeatureCode="C20";
pCurLineData->LineMark=1; fscanf(pFile,"%s\n",str1);
    if(strcmp(str1,"102")==0)
//if(strnicmp("102",str1,3)!=0)
{
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);

} fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);

fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",pCurLineData->LayerName ); fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
//fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%d\n",&pCurLineData->PointNum); Point *LnPnt;
LnPnt=new Point[pCurLineData->PointNum];
pCurLineData->pMemberPoint=LnPnt; fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%s\n",str1); for(int i=0;i<pCurLineData->PointNum;i++)
{ fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%f\n",&LnPnt[i].X);
fscanf(pFile,"%s\n",str1);
fscanf(pFile,"%f\n",&LnPnt[i].Y);
}

LineList.LineDataList.AddTail(*pCurLineData);

}

}
}

Answer 9

pCurLineData=new LineData[sizeof(LineData)];这代表 pCurLineData 是一个数组，每必要 pCurLineData=new LineData；while (pCurLineData->LineDataList.isEmpty)
{
   LineDataItem* pa  = pCurLineData->LineDataList.RemoveTail();
   delete []pa->pMemberPoint;
   delete []pa;
}pCurLineData=new LineDataItem[sizeof(LineData)];
没必要 LineDataItem CurLineData；不是很好吗

Answer 10

有NEW 的地方用完马上删除

Answer 11

问题找着拉
少这么一句
pPrevLineData=new LineData[sizeof(LineData)];