[patch] Support binary (0b...) numbers

[Mark Kettenis]

> Date: Mon, 11 Jan 2010 15:37:49 +0100
> From: Jan Kratochvil <jan.kratochvil@redhat.com>
> 
> Hi,
> 
> it is completely offtopic from my other work but I got now surprised GDB
> cannot parse standard C syntax of binary (0b11 == 3) numbers.

Uh, standard C?  My copy of C99 doesn't seem to mention these.