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<h1 class="topictitle1">Can the length of *CCHAR replacement data change?</h1>
<div><p>The length of *CCHAR replacement data can change. This is why *CCHAR
replacement data is required to be a variable-length field.</p>
<p>The length of the field grows when converting from an SBCS CCSID to the
UCS-2 Level-1 CCSID. The length of the field shrinks when converting
from the UCS-2 Level-1 CCSID to an SBCS CCSID.</p>
<p>For example, you define message description TST0011 as 'Printer &amp;1;
has error &amp;2;' in message file MYMSGF that has a CCSID of 65535. '&amp;1'
is defined as *CCHAR data (*VARY 2) in length. This is the name of the printer.
<var class="varname">&amp;2</var>; is defined as a *CHAR data with a length of 1.
This is an error code. Enter the following Send Program Message command to
send this message to message queue MYMSGQ:</p>
<pre>SNDPGMMSG MSGID(TST0011) MSGF(MYLIB/MYMSGF) TOMSGQ(MYLIB/MYMSGQ) +
MSGDTA(X'000400500030F1') CCSID(61952)</pre>
<p>X'0004' is the length of the variable *CCHAR data. X'00500030' represents
the characters P0 in CCSID 61952. If message queue MYMSGQ has a CCSID of 00037,
the replacement data is converted to X'0002D7F0F1' before it is sent to the
message queue. If message queue MYMSGQ has a CCSID of 65535, the data is not
converted when it is sent to the message queue.</p>
<p>Your application programs cannot hard-code the position of the return code
in this example. When message queue MYMSGQ has a CCSID of 00037, the return
code is 5 bytes into the message text. When message queue MYMSGQ has a CCSID
of 65535, the return code is 7 bytes into the message text.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbagshandmsgccsidsupquest.htm" title="Here are some common questions asked about CCSID support for handling messages.">Common questions about CCSID support for handling messages</a></div>
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