Re: [PATCH 3/3] grep: avoid one strdup() per file

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On Thu, Feb 15, 2018 at 10:56:15PM +0100, Rasmus Villemoes wrote:

> There is only one instance of grep_source_init(GREP_SOURCE_FILE), and in
> that case the path and identifier arguments are equal - not just as
> strings, but the same pointer is passed. So we can save some time and
> memory by reusing the gs->path = xstrdup_or_null(path) we have already
> done as gs->identifier, and changing grep_source_clear accordingly
> to avoid a double free.

IMHO this special case is not really worth it, unless we can show that
those few bytes saved somehow make a measurable difference in either
peak memory or execution speed.

-Peff



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