pTable=new struct TableStruct;
nTableCont=GetFile((char*)LPCTSTR(csFileName),pTable);if(!nTableCont)
{
MessageBox("文件不能打开!","错误信息");
FreeMem();
PostMessage(WM_CLOSE);
}
else
{
nTableIndex=0;
while(pTable->pUpTable!=NULL)
pTable=pTable->pUpTable;nIndexUser=0;
UpdateRecord();
}
}
else语句中出现内存泄露,怎么解决?
nTableCont=GetFile((char*)LPCTSTR(csFileName),pTable);if(!nTableCont)
{
MessageBox("文件不能打开!","错误信息");
FreeMem();
PostMessage(WM_CLOSE);
}
else
{
nTableIndex=0;
while(pTable->pUpTable!=NULL)
pTable=pTable->pUpTable;nIndexUser=0;
UpdateRecord();
}
}
else语句中出现内存泄露,怎么解决?
{
......
}
CATCH(CDBException, e)
{
.......
}END_CATCH
或在
catch(_com_error &e)
{
...
}
__try
{
}
__finally
{
}
《Windows核心编程》一书第23~25章是很好的参考资料。
{
if(!nTableCont)
{
MessageBox("文件不能打开!","错误信息");
FreeMem();
PostMessage(WM_CLOSE);
}
else
{
nTableIndex=0;
while(pTable->pUpTable!=NULL)
pTable=pTable->pUpTable;nIndexUser=0;
UpdateRecord();
}
}
catch(_com_error &e)
{
}
// a CFile exception, and won't throw any other exceptions.
// Calling CString::Format() may throw a CMemoryException,
// so we have a catch block for such exceptions, too. Any
// other exception types this function throws will be
// routed to the calling function. TRY
{
pFile = new CFile(_T("C:\\WINDOWS\\SYSTEM.INI"),
CFile::modeRead | CFile::shareDenyNone); DWORD dwLength = pFile->GetLength(); CString str;
str.Format(_T("Your SYSTEM.INI file is %u bytes long."),
dwLength); AfxMessageBox(str);
}
CATCH(CFileException, pEx)
{
// Simply show an error message to the user. pEx->ReportError();
}
AND_CATCH(CMemoryException, pEx)
{
// We can't recover from this memory exception, so we'll
// just terminate the app without any cleanup. Normally, an
// an application should do everything it possibly can to
// clean up properly and _not_ call AfxAbort(). AfxAbort();
}
END_CATCH // If an exception occurs in the CFile constructor,
// the language will free the memory allocated by new
// and will not complete the assignment to pFile.
// Thus, our clean-up code needs to test for NULL. if (pFile != NULL)
{
pFile->Close();
delete pFile;
}