Junio C Hamano <gits...@pobox.com> writes:
> I do not think anybody sane uses prefixcmp() or suffixcmp() for
> anything but checking with zero; in other words, I suspect that all
> uses of Xcmp() can be replaced with !!Xcmp(), so as a separate
> clean-up patch, we may at least want to make it clear that the
> callers should not expect anything but "does str have sfx as its
> suffix, yes or no?" by doing something like this:
>
> int suffixcmp(const char *str, const char *suffix)
> {
> int len = strlen(str), suflen = strlen(suffix);
> if (len < suflen)
> return -1;
> else
> - return strcmp(str + len - suflen, suffix);
> + return !!strcmp(str + len - suflen, suffix);
> }
>
> I am not absolutely sure about doing the same to prefixcmp(),
> though. It could be used for ordering, even though no existing code
> seems to do so.
I just realized why this suggestion is incomplete; if we were to go
this route, we should rename the function to has_suffix() or
something. anything-cmp() ought to be usable as an ordering
comparison function, but suffixcmp() clearly isn't.
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