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authorjan.nijtmans <nijtmans@users.sourceforge.net>2016-11-17 16:12:14 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2016-11-17 16:12:14 (GMT)
commit3aefaf62e4de2181582277bb60fe2a4ee5c506a2 (patch)
treece84219a5932e60edc4b6d0a8b9ee60cb721f33b /libtommath
parenta9263ba9069329f5c9f64a6a965cfce12f18ab15 (diff)
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Fix libtommath's mp_radix_size() function such that it returns 2 for single-digit numbers. Add testcases for mp_radix_size() and mp_iseven(). Undo useless change in bn_mp_add_d.c (bring back libtommath's version).
Diffstat (limited to 'libtommath')
-rw-r--r--libtommath/bn_mp_add_d.c11
-rw-r--r--libtommath/bn_mp_radix_size.c19
2 files changed, 14 insertions, 16 deletions
diff --git a/libtommath/bn_mp_add_d.c b/libtommath/bn_mp_add_d.c
index 5281ad4..aec8fc8 100644
--- a/libtommath/bn_mp_add_d.c
+++ b/libtommath/bn_mp_add_d.c
@@ -12,7 +12,7 @@
* The library is free for all purposes without any express
* guarantee it works.
*
- * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
/* single digit addition */
@@ -37,9 +37,8 @@ mp_add_d (mp_int * a, mp_digit b, mp_int * c)
/* c = |a| - b */
res = mp_sub_d(a, b, c);
- /* fix signs */
- a->sign = MP_NEG;
- c->sign = (c->used) ? MP_NEG : MP_ZPOS;
+ /* fix sign */
+ a->sign = c->sign = MP_NEG;
/* clamp */
mp_clamp(c);
@@ -107,3 +106,7 @@ mp_add_d (mp_int * a, mp_digit b, mp_int * c)
}
#endif
+
+/* $Source$ */
+/* $Revision: 0.41 $ */
+/* $Date: 2007-04-18 09:58:18 +0000 $ */
diff --git a/libtommath/bn_mp_radix_size.c b/libtommath/bn_mp_radix_size.c
index 40c4d04..9d95c48 100644
--- a/libtommath/bn_mp_radix_size.c
+++ b/libtommath/bn_mp_radix_size.c
@@ -12,7 +12,7 @@
* The library is free for all purposes without any express
* guarantee it works.
*
- * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
/* returns size of ASCII reprensentation */
@@ -66,18 +66,13 @@ int mp_radix_size (mp_int * a, int radix, int *size)
}
mp_clear (&t);
- /*
- * return digs + 1, the 1 is for the NULL byte that would be required.
- * mp_toradix_n requires a minimum of 3 bytes, so never report less than
- * that.
- */
-
- if ( digs >= 2 ) {
- *size = digs + 1;
- } else {
- *size = 3;
- }
+ /* return digs + 1, the 1 is for the NULL byte that would be required. */
+ *size = digs + 1;
return MP_OKAY;
}
#endif
+
+/* $Source$ */
+/* $Revision: 0.41 $ */
+/* $Date: 2007-04-18 09:58:18 +0000 $ */