Index: lib/inttostr.h
===================================================================
RCS file: /cvsroot/gnulib/gnulib/lib/inttostr.h,v
retrieving revision 1.2
diff -u -r1.2 inttostr.h
--- lib/inttostr.h	12 Apr 2004 06:47:06 -0000	1.2
+++ lib/inttostr.h	25 Feb 2005 06:36:01 -0000
@@ -36,8 +36,11 @@
 #endif
 
 /* Upper bound on the string length of an integer converted to string.
-   302 / 1000 is ceil (log10 (2.0)).  Subtract 1 for the sign bit;
-   add 1 for integer division truncation; add 1 more for a minus sign.  */
+   302 / 1000 >= log10(2.0), subtract 1 for the sign bit; add 1 for
+   integer division truncation; add 1 more for a minus sign.
+   (There is no need to have a separate macro for unsigned types, as
+   it would be ((sizeof (t) * CHAR_BIT) * 302 / 1000 + 1), which is
+   either the same, or smaller by 1.)  */
 #define INT_STRLEN_BOUND(t) ((sizeof (t) * CHAR_BIT - 1) * 302 / 1000 + 2)
 
 #define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)