--- a/libtommath/bn_s_mp_mul_digs.c	Sat Jun 24 17:50:50 2017 +0800
+++ b/libtommath/bn_s_mp_mul_digs.c	Sat Jun 24 22:37:14 2017 +0800
@@ -1,4 +1,4 @@
-#include <tommath.h>
+#include <tommath_private.h>
 #ifdef BN_S_MP_MUL_DIGS_C
 /* LibTomMath, multiple-precision integer library -- Tom St Denis
  *
@@ -12,7 +12,7 @@
  * The library is free for all purposes without any express
  * guarantee it works.
  *
- * Tom St Denis, [email protected], http://math.libtomcrypt.com
+ * Tom St Denis, [email protected], http://libtom.org
  */
 
 /* multiplies |a| * |b| and only computes upto digs digits of result
@@ -29,8 +29,8 @@
 
   /* can we use the fast multiplier? */
   if (((digs) < MP_WARRAY) &&
-      MIN (a->used, b->used) < 
-          (1 << ((CHAR_BIT * sizeof (mp_word)) - (2 * DIGIT_BIT)))) {
+      (MIN (a->used, b->used) < 
+          (1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) {
     return fast_s_mp_mul_digs (a, b, c, digs);
   }
 
@@ -61,9 +61,9 @@
     /* compute the columns of the output and propagate the carry */
     for (iy = 0; iy < pb; iy++) {
       /* compute the column as a mp_word */
-      r       = ((mp_word)*tmpt) +
-                ((mp_word)tmpx) * ((mp_word)*tmpy++) +
-                ((mp_word) u);
+      r       = (mp_word)*tmpt +
+                ((mp_word)tmpx * (mp_word)*tmpy++) +
+                (mp_word)u;
 
       /* the new column is the lower part of the result */
       *tmpt++ = (mp_digit) (r & ((mp_word) MP_MASK));
@@ -72,7 +72,7 @@
       u       = (mp_digit) (r >> ((mp_word) DIGIT_BIT));
     }
     /* set carry if it is placed below digs */
-    if (ix + iy < digs) {
+    if ((ix + iy) < digs) {
       *tmpt = u;
     }
   }
@@ -85,6 +85,6 @@
 }
 #endif
 
-/* $Source: /cvs/libtom/libtommath/bn_s_mp_mul_digs.c,v $ */
-/* $Revision: 1.3 $ */
-/* $Date: 2006/03/31 14:18:44 $ */
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */