RFC 4042, "UTF-9 and UTF-18 Efficient Transformation Formats of Unicode", April 2005

Errata ID: 8325
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Kang-Che Sung
Date Reported: 2025-03-10

Section 5.2 says:

   UINT9 *UCS4_to_UTF9 (UINT9 *utf9P,UINT31 ucs4)
   {
     if (ucs4 > 0x100) {
       if (ucs4 > 0x10000) {
         if (ucs4 > 0x1000000)
   /* ... */

It should say:

   UINT9 *UCS4_to_UTF9 (UINT9 *utf9P,UINT31 ucs4)
   {
     if (ucs4 >= 0x100) {
       if (ucs4 >= 0x10000) {
         if (ucs4 >= 0x1000000)
   /* ... */

Notes:

Errors in the conditionals in the C code.

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