2 Copyright (c) 2000-2015 Ericsson Telecom AB
4 All rights reserved. This program and the accompanying materials
5 are made available under the terms of the Eclipse Public License v1.0
6 which accompanies this distribution, and is available at
7 http://www.eclipse.org/legal/epl-v10.html
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13 <title>ischosen
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34 <p>This function returns the value
<b><font face=
"Courier New">true
</font></b> if and only if the data object reference specifies the variant of the
<b><font face=
"Courier New">union
</font></b>
35 type that is actually selected for a given data object.
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37 <p>Related keyword:
</p>
39 <li><b><font face=
"Courier New" size=
"4" color=
"#003258"><a href=
"boolean.html">boolean
</a></font></b></li>
40 <li><b><a href=
"true.html"><font face=
"Courier New" size=
"4" color=
"#003258">true
</font></a></b></li>
41 <li><b><a href=
"false.html"><font face=
"Courier New" size=
"4" color=
"#003258">false
</font></a></b></li>
42 <li><b><a href=
"union.html"><font face=
"Courier New" size=
"4" color=
"#003258">union
</font></a></b></li>
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50 <h3 align=
"center"><font face=
"Courier New" color=
"#003258" size=
"5"><b>ischosen
</b></font><font face=
"Courier New" color=
"#003258" size=
"5"><b>(
</b></font><i>any_type value
</i><font
51 face=
"Courier New" color=
"#003258" size=
"5"><b>) return boolean
</b></font></h3>
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61 <p><font face=
"Courier New"> type union MyUnion
<br>
62 {
PDU_type1
p1,
<br>
63 PDU_type2
p2,
<br>
64 PDU_type
p3
<br>
65 }
<br>
68 <p> // and given that MyPDU is a template of MyUnion type
<br>
69 // and received_PDU is also of MyUnion type
<br>
70 // then
<br>
71 MyPort.receive(MyPDU) -
> value received_PDU
<br>
73 ischosen(received_PDU.p2)
<br>
74 // returns true if the actual instance of MyPDU carries a PDU of the type PDU_type2
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