Michael Haggerty <mhag...@alum.mit.edu> writes:
> The beginning of the loop ensures that slash can never be NULL. So
> don't keep checking whether it is NULL later in the loop.
>
> Furthermore, there is no need for an early
>
> return it;
>
> from the loop if slash points at the end of the string, because that
> is exactly what will happen when the while condition fails at the
> start of the next iteration.
Hm. Another suggestion. You have
const char *slash = strchr(path, '/');
if (!slash)
slash = path + strlen(path);
[...]
sub = find_subtree(it, path, slash - path, 0);
[...]
path = slash;
while (*path == '/')
path++;
}
At the price of introducing another variable, this could be
const char *slash = strchr(path, '/');
size_t len = slash ? slash - path : strlen(path);
[...]
sub = find_subtree(it, path, len, 0);
[...]
if (!slash)
break;
for (path = slash; *path == '/';)
path++;
}
This introduces another variable and another condition. The advantage
is that "slash" indeed points at a slash or is NULL, so the variable
names correspond better to what happens. Alternatively, it might make
sense to rename "slash" into "end" or "endpart" or whatever. Since
I can't think of a pretty name, I lean towards preferring the latter
version as it reads nicer. I prefer code to read like children's books
rather than mystery novels.
--
David Kastrup
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