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On Wednesday 06 February 2013 09:54:09 Rich Felker wrote: > On Wed, Feb 06, 2013 at 09:11:19AM +0100, ShÃrab wrote: > > It seems there is no function in the glibc at the moment to check > > whether a memory area is empty (contains onlyzeros). > > > > If this is correct, would it be possible to add such a function? > > Slightly off-topic, but if your program needs such a function, it > could easily be implemented in terms of a loop performing memcmp on a > fixed-max-size subrange against a static const zero buffer of the > particular size. that might be a bit faster, but it sounds like memspn()/memcspn() funcs would work too. googling for those func names turns up quite a number of existing implementations. -mike
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