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<P ALIGN=CENTER><EM>Posted by <STRONG><A HREF="mailto:hansw@flash.net">Hans Wedemeyer</A></STRONG> on <STRONG>4/18/98 11:19a.m.</STRONG></EM></P>
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<P>Memory leaks after extensive use of CString.
<P>In one of my classes I make use of CString a lot, there are several functions
<BR>that need to manipulate strings.
<BR>When I need a CString in one of these functions, I declare it on the fly like
<BR>this
<P>CString strName; // for example a Name string
<P>I use the string mostly with
<BR>strName.Find()
<BR>strName.Left()
<BR>strName.Mid()
<BR>str += strName etc. However I do NOT make use of the GetBuffer(), and the
<BR>need to ReleaseBuffer() is something I'm aware of, so I did not expect this
<BR>kind of a problem when using CString!
<P>As these CString objects are declared on the fly within each function, I
<BR>expected the CString destructor to take care of the cleanup as the object
<BR>went out of scope, and from the error message (see below) it appears CString
<BR>is not deleting the memory it allocated for the task.
<P>Somewhere I can remember reading something about doing a Empty() when
<BR>finished with CString Object, but I was never clear as to why this was needed!
<P>Here is one of the error messages I get, maybe some one has already had this
<BR>problem and can identify the cause ?
<P>Maybe I'm using CString incorrectly, if that is the case, please enlighten me
<BR>as to what I'm doing wrong !
<P>regards
<BR>Hans Wedemeyer
<P>Dumping objects ->
<BR>strcore.cpp(76) : {5350} normal block at 0x00DDF440, 28 bytes long.
<BR> Data: < [_][> 01 00 00 00 0F 00 00 00 0F 00 00 00 5B 5F 5D 5B
<P>This is line 76 of strcore.cpp
<BR>CStringData* pData = (CStringData*)new BYTE[sizeof(CStringData) + (nLen+1)*sizeof(TCHAR)];
<P>I expect the allocated memory "pData" is not getting deleted..
<BR>
</P>
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<P><UL><LI><STRONG><A HREF="read.cgi-read=9736.htm" tppabs="http://www.codeguru.com/mfc_bbs/read.cgi?read=9736">Re: CString Memory Leaks Why ?</A></STRONG> : Nagaraj -- <EM>4/18/98 11:00p.m.</EM>
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<LI><STRONG><A HREF="read.cgi-read=9852.htm" tppabs="http://www.codeguru.com/mfc_bbs/read.cgi?read=9852">Re: CString Memory Leaks Why ?</A></STRONG> : yoav zilberberg -- <EM>4/20/98 10:40a.m.</EM>
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<LI><STRONG><A HREF="read.cgi-read=9853.htm" tppabs="http://www.codeguru.com/mfc_bbs/read.cgi?read=9853">Re: CString Memory Leaks Why ?</A></STRONG> : Hans Wedemeyer -- <EM>4/20/98 10:59a.m.</EM>
<UL>
<LI><STRONG><A HREF="read.cgi-read=10090.htm" tppabs="http://www.codeguru.com/mfc_bbs/read.cgi?read=10090">Hint on Memory Leak detection...</A></STRONG> : Corey -- <EM>4/22/98 8:08a.m.</EM>
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