From: Anitha Boyapati <anithab@sankhya.com>
To: Daniel Jacobowitz <drow@false.org>
Cc: gdb@sourceware.org
Subject: Re: conditional breakpoints for strings
Date: Wed, 24 Oct 2007 12:22:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.44.0710241752020.17206-100000@linux42.sankhya.com> (raw)
In-Reply-To: <20071024115310.GA19251@caradoc.them.org>
Hi,
On Wed, 24 Oct 2007, Daniel Jacobowitz wrote:
> You probably want to use at least one temporary variable to do this
> sort of thing. GDB evaluates C++ expressions with user defined
I did it with (strcmp(...) == 0). It worked that way probably because
strcmp() takes care of memory alloc and type casting issues. I think this
is fine for me now. Thanks.
> operators by calling the operators, and it evaluates strings by
> calling malloc in the program. I believe there are three function
> calls in s == "hello" - one for malloc(6), one for char * to string
> conversion, and one to operator==.
>
> I see that it's GDB segfaulting, not your program. If this still
> happens with a newer version of GDB, we could look into it. But
> I get:
>
> Error in testing breakpoint condition:
> Invalid cast.
>
> GDB probably doesn't support the char* -> string constructor. That's
> one of the parts of C++ that's very hard to support in the debugger.
>
>
This is quite interesting. Maybe I would just look into its internals.
Generally speaking, why is this char*->string so hard ?
--
Regards,
Anitha B
@S A N K H Y A
next prev parent reply other threads:[~2007-10-24 12:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-24 6:51 Anitha Boyapati
2007-10-24 11:53 ` Daniel Jacobowitz
2007-10-24 12:22 ` Anitha Boyapati [this message]
2007-10-24 12:36 ` Daniel Jacobowitz
2007-10-24 13:05 ` Anitha Boyapati
2007-10-24 14:26 ` Dave Korn
2007-10-24 14:35 ` 'Daniel Jacobowitz'
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