[cairo] [patch] cairo sanity checking

[Carl Worth]

On Tue, 18 May 2004 10:26:29 -0400, graydon hoare wrote:
> this patch adds a simple sanity-checking routine to cairo. I've found, 
> so far, one way in which the cairo_t goes "insane" during operations 
> (further patch follows) so I thought I'd add a simple place to add 
> further sanity checks as pre- and post-conditions on each user-level 
> operation.
> 
> comments? ok to commit?

This looks like a pretty reasonable thing to add.

If we're going to add the usage of assert to the code, do we need some
corresponding ./configure magic to allow users that don't want it to
turn it off?

-Carl