Le vendredi 04 novembre 2005 à 20:29 -0600, Federico Mena Quintero a écrit : > On Fri, 2005-11-04 at 20:23 -0500, Behdad Esfahbod wrote: > > +#define IS(Type, Class) (((guint)1 << (Type)) & (Class) ? > > 1 : 0) > > +#define OR(Type, Rest) (((guint)1 << (Type)) | (Rest))
impressive ! i'm sad that gcc doesn't do it by itself. Maybe a bug
should be filled because this kind of optimization is great.
Having a look at assembly ...
instructions :
pango | behad
ISDIGIT 5 | 5
ISALPHA 13 | 4
ISMARK 9 | 4
branching instructions :
pango | behad
ISDIGIT 0 | 0
ISALPHA 4 | 0
ISMARK 2 | 0
amazing :)
--
Benoît Dejean <[EMAIL PROTECTED]>
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