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-rw-r--r--libtommath/bn_mp_toom_sqr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtommath/bn_mp_toom_sqr.c b/libtommath/bn_mp_toom_sqr.c
index 5e1e452..b985435 100644
--- a/libtommath/bn_mp_toom_sqr.c
+++ b/libtommath/bn_mp_toom_sqr.c
@@ -16,7 +16,7 @@
*/
/* squaring using Toom-Cook 3-way algorithm */
-int mp_toom_sqr(mp_int *a, mp_int *b)
+int mp_toom_sqr(const mp_int *a, mp_int *b)
{
mp_int w0, w1, w2, w3, w4, tmp1, a0, a1, a2;
int res, B;