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<title>isvalue</title>
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<h1>isvalue</h1>
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<p>This function returns the value <b><font face="Courier New">true</font></b> if and only if the template parameter is completely initialized, thus, contains only concrete or omitted values.
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<p>Related keyword:</p>
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<li><b><font face="Courier New" size="4" color="#003258"> <a href="boolean.html">boolean</a></font></b></li>
<li><b><a href="true.html"><font face="Courier New" size="4" color="#003258"> true</font></a></b></li>
<li><b><font face="Courier New" size="4" color="#003258"><a href="false.html"> false</a></font></b></li>
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<li><b><font face="Courier New" size="4" color="#003258"> <a href="omit.html">omit</a></font></b></li>
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<h3 align="center"><font face="Courier New" color="#003258" size="5"><b>isvalue</b></font> <font face="Courier New" color="#003258" size="5"><b> (</b></font><i>in template any_type
inparameter</i><font face="Courier New" color="#003258" size="5"><b>)return boolean</b></font></h3>
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<p>Example 1:</p>
<p><font face="Courier New">type record MyRecordType { <br>
integer field1 optional,<br>
integer field2 optional<br>
}<br>
...</font></p>
<p><font face="Courier New">var MyRecordType v_MyRecord;<br>
var template MyRecordType vt_MyRecordTemplate;<br>
...</font></p>
<p><font face="Courier New">isvalue(v_MyRecord); // return false<br>
isvalue(vt_MyRecordTemplate); // return false<br>
...</font></p>
<p><font face="Courier New">v_MyRecord := { field1 := 5, field2 := omit}<br>
vt_MyRecordTemplate := { field1 := ?, field2 := 5}<br>
...</font></p>
<p><font face="Courier New">isvalue(v_MyRecord); // return true<br>
isvalue(v_MyRecord.field2); // return false<br>
isvalue(vt_MyRecordTemplate); // return false<br>
isvalue(vt_MyRecordTemplate.field1); // return false<br>
isvalue(vt_MyRecordTemplate.field2); // return true<br>
</font></p>
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