for ( ; *s++ = *t++ ; ) ;
while (*s++ = *t++) {
/* empty body */
} ;.
I always found "continue" to be a lot more explicit in situations
like this:
while(*s++ = *t++)
continue;
the empty semi-colon being the least attractive alternative (did
he really mean to leave the body empty? not to mention the greener
programmer will easily overlook the semicolon).
In any case, both examples have the issues of the side-effects of the
assignment (being used for the test here). The author of either example also
has to worry about the loop terminating (finding a null pointer).
No complaints about assignment in the loop test? :)
(Another sure way to confuse the younger C coder).
For all but trivial copies like this memcpy() (aka bcopy()) is probably a
better "solution", though of course it won't terminate on a null pointer like
the above.
But strcpy() will :)
Jim
Tim Newsham
http://www.lava.net/~newsham/
