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Varargs functions in CALC.

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This commit is contained in:
Andrew Johnson
2008-04-10 18:31:33 +00:00
parent b281b453bb
commit c64685a360
1 changed files with 13 additions and 3 deletions
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16
documentation/RELEASE_NOTES.html
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@@ -174,14 +174,24 @@ synchronized master timingIOC) and as NTP clients.</p>
<p>The value in the SELN field was not being checked against its limit,
potentially causing a crash on some architectures.</p>
<h4>Calc expressions: VAL keyword</h4>
<h4>Calc expressions</h4>
<p>The keyword <tt>VAL</tt> is now supported in CALC expressions. In a calc or
<dl>
<dt><tt>VAL</tt> keyword</dt>
<dd>The keyword <tt>VAL</tt> is now supported in CALC expressions. In a calc or
calcout record it returns the current contents of the VAL field (which can be
written to by a CA put, so it might <i>not</i> be the result from last time the
expression was evaluated). In Access Security expressions it returns the result
of the previous evaluation of the rule expression. In other uses of the
calcPerform engine, the result may not be well-defined.</p>
calcPerform engine, the result may not be well-defined.</dd>
<dt><tt>MIN</tt>, <tt>MAX</tt>, <tt>FINITE</tt>, <tt>ISNAN</tt> functions</dt>
<dd>Thanks to Benjamin Franksen these functions can now accept any number of
arguments, thus <tt>MAX(A,B,C,D,E,F,G,H,I,J,K,L)</tt> and <tt>MIN(A)</tt>are now
legal expressions. The <tt>FINITE</tt> function returns a non-zero value as long
as none of its arguments are NaN or Inf values, while <tt>ISNAN</tt> returns
non-zero if any of its arguments are NaN values.</dd>
</dl>
<h4>softIoc now starts shell by default</h4>