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authorArnold D. Robbins <arnold@skeeve.com>2017-01-16 20:57:17 +0200
committerArnold D. Robbins <arnold@skeeve.com>2017-01-16 20:57:17 +0200
commit93946258bb36671b98761689667b4e16845bd887 (patch)
treecece01081d3c26b565e340f28dccaa84c6fd6e31 /support/dfa.c
parented310df632070db175d86e02fce3e4d2515d7066 (diff)
parentc04fec1b8c96e2b11d451fc45cfd1cf38420310f (diff)
downloadegawk-93946258bb36671b98761689667b4e16845bd887.tar.gz
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Merge branch 'master' into feature/api-mpfr
Diffstat (limited to 'support/dfa.c')
-rw-r--r--support/dfa.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/support/dfa.c b/support/dfa.c
index 1abc6d13..eb8e2136 100644
--- a/support/dfa.c
+++ b/support/dfa.c
@@ -2046,8 +2046,9 @@ copy (position_set const *src, position_set *dst)
dst->elems = xpalloc (NULL, &dst->alloc, src->nelem - dst->alloc, -1,
sizeof *dst->elems);
}
- memcpy (dst->elems, src->elems, src->nelem * sizeof *dst->elems);
dst->nelem = src->nelem;
+ if (src->nelem != 0)
+ memcpy (dst->elems, src->elems, src->nelem * sizeof *dst->elems);
}
static void