Re: [PATCH v3] skip_prefix: rewrite so that prefix is scanned once

David Kastrup [off-list ref] writes:

How about a function body of

	do {
        	if (!*prefix)
                	return str;
        } while (*str++ == *prefix++);
        return NULL;

I'm not too fond of while (1) and tend to use for (;;) instead, but that
may again partly be due to some incredibly non-optimizing compiler back
in the days of my youth.  At any rate, the do-while loop seems a bit
brisker.

I do not have strong preference between "while (1)" and "for (;;)",
but I tend to agree

	for (;; prefix++, str++) {
		if (!*prefix)
			return str;
		if (*str != *prefix)
			return NULL;
	}

may be easier to read than what I suggested.  Your do-while loop is
concise and very readable, so let's take that one (I'll forge your
Sign-off ;-)).

I haven't looked at the generated assembly of any of these, though.