X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/0cbfe12eb239d2fbfe95a3f798308f861bc6a819..0f9bd85aa42c06b55d7a4e1693981233d95c62ff:/mptext-len.c

diff --git a/mptext-len.c b/mptext-len.c
index e9aee49..e8142fb 100644
--- a/mptext-len.c
+++ b/mptext-len.c
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: mptext-len.c,v 1.1 2002/10/15 22:58:29 mdw Exp $
+ * $Id$
  *
  * Work out length of a number's string representation
  *
  * (c) 2002 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of Catacomb.
  *
@@ -15,26 +15,18 @@
  * it under the terms of the GNU Library General Public License as
  * published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
- * 
+ *
  * Catacomb is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Library General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Library General Public
  * License along with Catacomb; if not, write to the Free
  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: mptext-len.c,v $
- * Revision 1.1  2002/10/15 22:58:29  mdw
- * Fast estimation of number representation lengths.
- *
- */
-
 /*----- Header files ------------------------------------------------------*/
 
 #include "mp.h"
@@ -49,7 +41,7 @@
  *
  * Returns:	The number of digits needed to represent the number in the
  *		given base.  This will not include space for a leading sign
- *		(use @MP_ISNEG@ to check that, or just add one on for luck);
+ *		(use @MP_NEGP@ to check that, or just add one on for luck);
  *		neither will it add space for a terminating null.  In general
  *		the answer will be an overestimate.
  */
@@ -81,6 +73,7 @@ size_t mptext_len(mp *x, int r)
 
   /* --- Find the right pair of points --- */
 
+  if (r < 0) r = -r;
   do {
     s = ss;
     d++;