Checking that a memory area is empty

[Rich Felker]

On Wed, Feb 06, 2013 at 09:11:19AM +0100, Shérab wrote:
> Dear all,
> 
> 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.

Rich