高手！！怎么解决这个芮存泄漏？？

[Niou_Shi]

long g_ParsingParameters(PARAINFO& para, LPCTSTR prg_info, long svr_count, LPCTSTR svr_info, long url_count, LPCTSTR url_info, long ftp_count, LPCTSTR ftp_info)
//½âÎö²ÎÊýÐÅÏ¢
{
CString str, str1, str2;
CString tag;
LPTSTR pstr,pstr1,pstr2,ptag,p;
pstr=str.GetBuffer(1024);
pstr1=str1.GetBuffer(1024);
pstr2=str2.GetBuffer(1024);
ptag=tag.GetBuffer(1024);
int nStart, nEnd;
int i, nPos, nPos0, num;

para.bIsSchedule = FALSE;
//get program information
// str=prg_info;
strcpy(pstr,prg_info);

str.ReleaseBuffer();//ÓÃstrµÄ³ÉÔ±º¯ÊýÇ°ÒªÏÈReleaseBuffer
// tag = _T("NAME=");
strcpy(ptag,"NAME=");
tag.ReleaseBuffer();
nStart = str.Find(tag);
if (nStart == -1) return 1;
// tag = _T(";");
ptag=tag.GetBuffer(1024);
strcpy(ptag,";");
tag.ReleaseBuffer();
nEnd = str.Find(tag, nStart);
if (nEnd == -1) return 1;

strcpy(pstr2,str.Mid(nStart+5, nEnd-nStart-5));//1，不会泄漏
str2.ReleaseBuffer();//
str2.TrimLeft();
str2.TrimRight();
para.prg_info.name = str2;



//tag = _T("ID=");
ptag=tag.GetBuffer(1024);
strcpy(ptag,"ID=");
tag.ReleaseBuffer();

nStart = str.Find(tag);
if (nStart == -1) return 1;
#ifdef _DEBUG
CMemoryState oldMemState, newMemState, diffMemState;
oldMemState.Checkpoint();
#endif
// tag = _T(";");
ptag=tag.GetBuffer(1024);
strcpy(ptag,";");
tag.ReleaseBuffer();

nEnd = str.Find(tag, nStart);
if (nEnd == -1) return 1;


p=str2.GetBuffer(1024);
strcpy(p,str.Mid(nStart+3, nEnd-nStart-3))；//2，这里泄漏！！why
str2.ReleaseBuffer();
str2.TrimLeft();
str2.TrimRight();
#ifdef _DEBUG
newMemState.Checkpoint();
if(diffMemState.Difference(oldMemState,newMemState))
{
TRACE("mem leak in RWF");
diffMemState.DumpStatistics();
}

#endif
。。。。
}

泄漏信息为：
0 bytes in 0 Free Blocks.
1037 bytes in 1 Normal Blocks.
0 bytes in 0 CRT Blocks.
0 bytes in 0 Ignore Blocks.
0 bytes in 0 Client Blocks.
Largest number used: 0 bytes.
Total allocations: 1065 bytes.

[cai_c_cai]

你的代码根本就没有内存leak;只是检测方法不对。

你这样检测肯定会出现leak。CString都是动态分配内存的，他在赋值时动态分配内存或者调用GetBuffer（），他在析构时才会释放内存。CString的
ReleaseBuffer()并不是释放内存，而是使GetBuffer（）获得的内存有效，即让其他CString函数的操作有效。

比较下面两段代码就会明白。
出现leak的代码段
{
CString str;
#ifdef _DEBUG
CMemoryState oldMemState, newMemState, diffMemState;
oldMemState.Checkpoint();
#endif
str="aa";//
#ifdef _DEBUG
newMemState.Checkpoint();
if(diffMemState.Difference(oldMemState,newMemState))
{
TRACE("mem leak in RWF");
diffMemState.DumpStatistics();
}
}
不出现leak的代码段：
{
#ifdef _DEBUG
CMemoryState oldMemState, newMemState, diffMemState;
oldMemState.Checkpoint();
#endif
{
CString str;
str="aa";
}
#ifdef _DEBUG
newMemState.Checkpoint();
if(diffMemState.Difference(oldMemState,newMemState))
{
TRACE("mem leak in RWF");
diffMemState.DumpStatistics();
}
}
这两段代码的差别就是一个CString没有析构，一个CString析构了。

[zhang1000]

好像是长度的问题,看看MSDN中的说明:
Note that if you keep track of the string length yourself, you should not append the terminating null character. You must, however, specify the final string length when you release the buffer with ReleaseBuffer. If you do append a terminating null character, you should pass –1 for the length to ReleaseBuffer and ReleaseBuffer will perform a strlen on the buffer to determine its length
不好意思,我没试过.