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-rw-r--r--libtommath/bn_mp_toom_mul.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtommath/bn_mp_toom_mul.c b/libtommath/bn_mp_toom_mul.c
index 4a574fc..0bf940d 100644
--- a/libtommath/bn_mp_toom_mul.c
+++ b/libtommath/bn_mp_toom_mul.c
@@ -22,7 +22,7 @@
* only particularly useful on VERY large inputs
* (we're talking 1000s of digits here...).
*/
-int mp_toom_mul(mp_int *a, mp_int *b, mp_int *c)
+int mp_toom_mul(const mp_int *a, const mp_int *b, mp_int *c)
{
mp_int w0, w1, w2, w3, w4, tmp1, tmp2, a0, a1, a2, b0, b1, b2;
int res, B;