validity
Click on the red underlined text to get to the source
... The following routines demonstrate conversion from UCS-4 to UTF-9.
For simplicity, these routines do not do any validity checking.
Routines used in applications SHOULD reject invalid UTF-9 sequences;
that is, the first nonet with a value of 400 octal (0x100), or
...
... The following routines demonstrate conversion from UTF-9 to UCS-4.
For simplicity, these routines do not do any validity checking.
Routines used in applications SHOULD reject invalid UCS-4 codepoints ...
... codepoints that are not in
[UNICODE]. Applications should validate UTF-9 strings to ensure that
all codepoints do not exceed the [UNICODE ...
...
The sample routines in this document are for example purposes, and
make no attempt to validate their arguments, e.g., test for overflow
([UNICODE] values great than 0x10ffff) or codepoints ...
...
The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
...