factorial: Fix usage message to fit in with conventions.

[u/mdw/catacomb] / mptext-len.c

diff --git a/mptext-len.c b/mptext-len.c
index e9aee49..ffb2df9 100644 (file)
--- a/mptext-len.c
+++ b/mptext-len.c
@@ -1,6 +1,6 @@
 /* -*-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
  *
@@ -27,14 +27,6 @@
  * 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++;