From: Richard Dawe Newsgroups: comp.os.msdos.djgpp Subject: Re: Examining C++'s this in gdb Date: Sun, 21 Jul 2002 14:33:12 +0100 Lines: 21 Message-ID: <3D3AB818.69EDDA1E@phekda.freeserve.co.uk> References: <200207211153 DOT g6LBrVW07272 AT speedy DOT ludd DOT luth DOT se> NNTP-Posting-Host: modem-148.sodium.dialup.pol.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: newsg3.svr.pol.co.uk 1027258445 30659 62.136.10.148 (21 Jul 2002 13:34:05 GMT) NNTP-Posting-Date: 21 Jul 2002 13:34:05 GMT X-Complaints-To: abuse AT theplanet DOT net X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.2.19 i586) X-Accept-Language: de,fr To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Hello. Martin Str|mberg wrote: > How do I examine "this" and "this->blarg" (in C++) while debugging > with gdb. "p this" only says "No symbol "this" in current context." > Doesn't every C++ function have a this variable. The source is using > this "this" at least. "p this" should work. I'm 100% sure that I've used that, when debugging C++ programs at work. Which version of gdb are you using? What debug flags did you use, when compiling? Try compiling with -gstabs+3 or -gdwarf-2. You'll probably need a recent gdb (Andris's package of 5.2?) for DWARF-2 to work, but even then there may be problems. I haven't been able to build libc.a with DWARF-2 debug info, for instance. Bye, -- Richard Dawe [ http://www.phekda.freeserve.co.uk/richdawe/ ]