a

1 files changed, 3 insertions, 3 deletions

diff --git a/src/fz_mul.c b/src/fz_mul.c
index 9d8b824..b9d6c09 100644
--- a/src/fz_mul.c
+++ b/src/fz_mul.c
@@ -6,8 +6,8 @@
 #include <okeffa/w_op.h>
 
 void fz_mul_egypt(word_t *a,word_t *b,word_t *o_lo,word_t *o_hi,size_t len){
-  size_t  len2    = len*2;
-  size_t  bitness = fz_bitness(len);
+  size_t  len2        = len*2;
+  size_t  bitness_m1  = fz_bitness(len)-1;
   word_t  xy[len2];
   word_t  xs[len2];
   word_t  ys[len];
@@ -16,7 +16,7 @@ void fz_mul_egypt(word_t *a,word_t *b,word_t *o_lo,word_t *o_hi,size_t len){
   fz_copy(a,xs,len);
   fz_clear(xs+len,len);
   fz_copy(b,ys,len);
-  for(size_t x = 0;x < bitness-1;x++){
+  for(size_t x = 0;x < bitness_m1;x++){
     fz_add_gated(xy,xs,xy,len2,fz_odd(ys));
     fz_shl(xs,xs,len2,1);
     fz_shr(ys,ys,len,1);