1 files changed, 85 insertions, 86 deletions

diff --git a/libtommath/bn_mp_add_d.c b/libtommath/bn_mp_add_d.c
index 8ca36c1..4a72cdd 100644
--- a/libtommath/bn_mp_add_d.c
+++ b/libtommath/bn_mp_add_d.c
@@ -16,93 +16,92 @@
  */
 
 /* single digit addition */
-int
-mp_add_d (mp_int * a, mp_digit b, mp_int * c)
+int mp_add_d(mp_int * a, mp_digit b, mp_int * c)
 {
-  int     res, ix, oldused;
-  mp_digit *tmpa, *tmpc, mu;
-
-  /* grow c as required */
-  if (c->alloc < a->used + 1) {
-     if ((res = mp_grow(c, a->used + 1)) != MP_OKAY) {
-        return res;
-     }
-  }
-
-  /* if a is negative and |a| >= b, call c = |a| - b */
-  if (a->sign == MP_NEG && (a->used > 1 || a->dp[0] >= b)) {
-     /* temporarily fix sign of a */
-     a->sign = MP_ZPOS;
-
-     /* c = |a| - b */
-     res = mp_sub_d(a, b, c);
-
-     /* fix sign  */
-     a->sign = c->sign = MP_NEG;
-
-     /* clamp */
-     mp_clamp(c);
-
-     return res;
-  }
-
-  /* old number of used digits in c */
-  oldused = c->used;
-
-  /* sign always positive */
-  c->sign = MP_ZPOS;
-
-  /* source alias */
-  tmpa    = a->dp;
-
-  /* destination alias */
-  tmpc    = c->dp;
-
-  /* if a is positive */
-  if (a->sign == MP_ZPOS) {
-     /* add digit, after this we're propagating
-      * the carry.
-      */
-     *tmpc   = *tmpa++ + b;
-     mu      = *tmpc >> DIGIT_BIT;
-     *tmpc++ &= MP_MASK;
-
-     /* now handle rest of the digits */
-     for (ix = 1; ix < a->used; ix++) {
-        *tmpc   = *tmpa++ + mu;
-        mu      = *tmpc >> DIGIT_BIT;
-        *tmpc++ &= MP_MASK;
-     }
-     /* set final carry */
-     ix++;
-     *tmpc++  = mu;
-
-     /* setup size */
-     c->used = a->used + 1;
-  } else {
-     /* a was negative and |a| < b */
-     c->used  = 1;
-
-     /* the result is a single digit */
-     if (a->used == 1) {
-        *tmpc++  =  b - a->dp[0];
-     } else {
-        *tmpc++  =  b;
-     }
-
-     /* setup count so the clearing of oldused
-      * can fall through correctly
-      */
-     ix       = 1;
-  }
-
-  /* now zero to oldused */
-  while (ix++ < oldused) {
-     *tmpc++ = 0;
-  }
-  mp_clamp(c);
-
-  return MP_OKAY;
+	int res, ix, oldused;
+	mp_digit *tmpa, *tmpc, mu;
+
+	/* grow c as required */
+	if (c->alloc < a->used + 1) {
+		if ((res = mp_grow(c, a->used + 1)) != MP_OKAY) {
+			return res;
+		}
+	}
+
+	/* if a is negative and |a| >= b, call c = |a| - b */
+	if (a->sign == MP_NEG && (a->used > 1 || a->dp[0] >= b)) {
+		/* temporarily fix sign of a */
+		a->sign = MP_ZPOS;
+
+		/* c = |a| - b */
+		res = mp_sub_d(a, b, c);
+
+		/* fix sign  */
+		a->sign = c->sign = MP_NEG;
+
+		/* clamp */
+		mp_clamp(c);
+
+		return res;
+	}
+
+	/* old number of used digits in c */
+	oldused = c->used;
+
+	/* sign always positive */
+	c->sign = MP_ZPOS;
+
+	/* source alias */
+	tmpa = a->dp;
+
+	/* destination alias */
+	tmpc = c->dp;
+
+	/* if a is positive */
+	if (a->sign == MP_ZPOS) {
+		/* add digit, after this we're propagating
+		 * the carry.
+		 */
+		*tmpc = *tmpa++ + b;
+		mu = *tmpc >> DIGIT_BIT;
+		*tmpc++ &= MP_MASK;
+
+		/* now handle rest of the digits */
+		for (ix = 1; ix < a->used; ix++) {
+			*tmpc = *tmpa++ + mu;
+			mu = *tmpc >> DIGIT_BIT;
+			*tmpc++ &= MP_MASK;
+		}
+		/* set final carry */
+		ix++;
+		*tmpc++ = mu;
+
+		/* setup size */
+		c->used = a->used + 1;
+	} else {
+		/* a was negative and |a| < b */
+		c->used = 1;
+
+		/* the result is a single digit */
+		if (a->used == 1) {
+			*tmpc++ = b - a->dp[0];
+		} else {
+			*tmpc++ = b;
+		}
+
+		/* setup count so the clearing of oldused
+		 * can fall through correctly
+		 */
+		ix = 1;
+	}
+
+	/* now zero to oldused */
+	while (ix++ < oldused) {
+		*tmpc++ = 0;
+	}
+	mp_clamp(c);
+
+	return MP_OKAY;
 }
 
 #endif