[Bug c/39128] GPC polygon clipping library fails with -O2

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-02-08 10:25 -------
>From the comments I suggest the code does floating point equality compares,
which is a dangerous thing to do if you are not knowing what you do.  A fix
is to instead of x == y use fabs(x - y) <= epsilon.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|gcc (GCC) 4.4.0 20090130    |
                   |(experimental)              |
   GCC host triplet|Linux linux 2.6.11.4-21.17- |
                   |smp #1 SMP Fri Apr 6        |
                   |08:42:34 UTC 200            |
 GCC target triplet|gcc (GCC) 4.4.0 20090130    |
                   |(experimental)              |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39128