CVS: cvs.openbsd.org: src

[Marc Espie <espie_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>]

CVSROOT:	/cvs
Module name:	src
Changes by:	espie_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	1999/11/20 10:49:00

Modified files:
	usr.bin/m4     : extern.h look.c main.c mdef.h 

Log message:
Optimization: cache the hashed value to avoid negative comparisons.
With 2^32 possible hash values, this means that collisions no longer
incur supplementary string compares, which was most of the reason for
STREQ in the first place...