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From: edh@twcny.rr.com To: gcc-gnats@gcc.gnu.org Subject: libstdc++/6594: strstreambuf leaks 16 bytes - gcc 3.0.x Date: Tue, 07 May 2002 07:56:00 -0000 [thread overview] Message-ID: <20020507144741.12275.qmail@sources.redhat.com> (raw) >Number: 6594 >Category: libstdc++ >Synopsis: strstreambuf leaks 16 bytes - gcc 3.0.x >Confidential: no >Severity: non-critical >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Tue May 07 07:56:00 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Ed Hourigan >Release: gcc 3.0.4 >Organization: >Environment: Red Hat Linux 7.2 on x86 processor >Description: The default constructor for strstreambuf allocates a buffer of 16 bytes. If you assign a user supplied buffer by calling setp(...), then the 16 byte buffer is not released and the pointer is lost. I have verified this leak using the linux tool 'memprof' Sample code: ( I am deriving a class from strstreambuf so I can control where the output stream goes ) class MyStreambuf : public strstreambuf { public: MyStreambuf() { setp( _buffer, _buffer, _buffer+BUFSIZE ); // leak here! ... } private: static const int BUFSIZE=256; char _buffer[BUFSIZE]; } >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2002-05-07 14:56 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-05-07 7:56 edh [this message] 2002-05-15 5:57 bkoz 2002-05-15 17:36 Ed Hourigan 2002-05-17 3:09 bkoz 2002-08-02 13:51 bkoz 2003-01-07 16:24 bkoz
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