[cairo] Catching int overflows in allocations

Vladimir Vukicevic vladimir at pobox.com
Tue Jun 12 09:50:34 PDT 2007

The attached patch reworks a bunch of memory allocations in cairo to use 
two new functions, _cairo_malloc2/_cairo_malloc3, that know how to check 
for integer overflow before allocating.  The only things that weren't 
converted were a few complex allocations in the glitz surface; those can 
be done in a followup.  I also added a section to CODING_STYLE talking 
about using these functions -- I hope that's an appropriate place for this?

     - Vlad
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