This is the mail archive of the gdb@sources.redhat.com mailing list for the GDB project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: filtering of commands during async operation

From: Paul Koning <pkoning at equallogic dot com>
To: grante at visi dot com
Cc: dje at transmeta dot com, mark dot newman at lmco dot com, gdb at sources dot redhat dot com
Date: Wed, 5 Nov 2003 17:10:36 -0500
Subject: Re: filtering of commands during async operation
References: <F56FBA314E8E5A41895F0DA8F6716A6D02A535@EMSS04M11.us.lmco.com><16297.28959.958906.509597@casey.transmeta.com><20031105220245.GA4424@grante.dsl.visi.com>

>>>>> "Grant" == Grant Edwards <grante@visi.com> writes:

 >> Good example of why it's useful to avoid using ! with strcmp.

 Grant> Why not just strcmp() ?

 Grant> if (strcmp() && strcmp() && strcmp())

Because strcmp isn't a boolean function.  Using boolean operations on
non-boolean values is a great way to produce bugs (as the example
showed).  It has a precise meaning in C, but that doesn't mean it
should be done.

       paul

References:
- filtering of commands during async operation
  - From: Newman, Mark (N-Superior Technical Resource Inc)
- filtering of commands during async operation
  - From: Doug Evans
- Re: filtering of commands during async operation
  - From: Grant Edwards

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]