From: Ralph Corderoy <ralph@inputplus.co.uk>
Date: Wed, 26 Apr 2017 23:14:28 +0000 (+0100)
Subject: sbr/vector.c: Zero the growth with memset(3), not loop.
X-Git-Url: https://diplodocus.org/git/nmh/commitdiff_plain/c8caafcb4a39516eaec330f9ea229ea52e5fe46b?hp=c8caafcb4a39516eaec330f9ea229ea52e5fe46b

sbr/vector.c: Zero the growth with memset(3), not loop.

When the resize functions grow the vectors, as they always do, zero the
new slots with memset(3) rather than a for loop.  Particularly of note
for the bit vector where it was bvector_clear()ing one bit at a time.
Although a NULL pointer needn't have a representation of all-zero bits,
the code was already assuming that, e.g. on the initial allocation, so
we're no worse off.
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