Comparing strings...

[Henry Spencer]

In article <3343 at idunno.Princeton.EDU> pfalstad at drops.Princeton.EDU (Paul John Falstad) writes:
>	while((c = (unsigned char) *s++) == (d == (unsigned char) *t++) && c);

Uh-uh, you don't want to do the conversions inside the loop; they can add
significant expense, and are irrelevant to an equality comparison.  You
do the conversions -- and conversions *back* to int so the difference
is signed -- in the post-loop wrapup.

By the way, tacking the ";" on the end of the while is a great way to
trip up your readers, which is thought amusing by amateurs and is avoided
by professionals.
-- 
"...the i860 is a wonderful source     | Henry Spencer at U of Toronto Zoology
of thesis topics."    --Preston Briggs |  henry at zoo.toronto.edu   utzoo!henry