--- trunk/mkinitrd-magellan/klibc/usr/dash/shell.h	2007/09/01 22:45:15	532
+++ trunk/mkinitrd-magellan/klibc/usr/dash/shell.h	2010/08/18 21:11:40	1122
@@ -92,3 +92,13 @@
 
 #define likely(x)	__builtin_expect(!!(x),1)
 #define unlikely(x)	__builtin_expect(!!(x),0)
+
+/*
+ * Hack to calculate maximum length.
+ * (length * 8 - 1) * log10(2) + 1 + 1 + 12
+ * The second 1 is for the minus sign and the 12 is a safety margin.
+ */
+static inline int max_int_length(int bytes)
+{
+	return (bytes * 8 - 1) * 0.30102999566398119521 + 14;
+}