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authordkf <donal.k.fellows@manchester.ac.uk>2011-03-14 14:25:44 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2011-03-14 14:25:44 (GMT)
commit7c4555bb7401b07d3ead13d62358fec50f6e6615 (patch)
tree2022381dbccf7af9e44c39176e7a3893e0e7208d /libtommath/bn_mp_shrink.c
parent9c2e378362223c670fe77827649dbdca520715c8 (diff)
parentaf01fe0b35a0b2afccffd2b93104778f54eb3f5b (diff)
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Apply non-comment changes to take our fork of libtommath up to tracking 0.42.0 from 0.39.
Diffstat (limited to 'libtommath/bn_mp_shrink.c')
-rw-r--r--libtommath/bn_mp_shrink.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/libtommath/bn_mp_shrink.c b/libtommath/bn_mp_shrink.c
index 482ca48..bfdf93a 100644
--- a/libtommath/bn_mp_shrink.c
+++ b/libtommath/bn_mp_shrink.c
@@ -19,12 +19,17 @@
int mp_shrink (mp_int * a)
{
mp_digit *tmp;
- if (a->alloc != a->used && a->used > 0) {
- if ((tmp = OPT_CAST(mp_digit) XREALLOC (a->dp, sizeof (mp_digit) * a->used)) == NULL) {
+ int used = 1;
+
+ if(a->used > 0)
+ used = a->used;
+
+ if (a->alloc != used) {
+ if ((tmp = OPT_CAST(mp_digit) XREALLOC (a->dp, sizeof (mp_digit) * used)) == NULL) {
return MP_MEM;
}
a->dp = tmp;
- a->alloc = a->used;
+ a->alloc = used;
}
return MP_OKAY;
}