2 * Copyright 1987 by MIT Student Information Processing Board
4 * This file may be copied under the terms of the GNU Public License.
8 #include "error_table.h"
11 static const char char_set[] =
12 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
16 const char * error_table_name(num)
23 /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
25 num >>= ERRCODE_RANGE;
26 /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
28 /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
29 for (i = 4; i >= 0; i--) {
30 ch = (int)((num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1));
32 *p++ = char_set[ch-1];