projects / deliverable / titan.core.git / blame
| Commit | Line | Data |
|---|---|---|
| 970ed795 | 1 | <!-- |
| d44e3c4f | 2 | Copyright (c) 2000-2016 Ericsson Telecom AB |
| 970ed795 EL |
3 | All rights reserved. This program and the accompanying materials |
| 4 | are made available under the terms of the Eclipse Public License v1.0 | |
| 5 | which accompanies this distribution, and is available at | |
| 6 | http://www.eclipse.org/legal/epl-v10.html | |
| d44e3c4f | 7 | |
| 8 | Contributors: | |
| 9 | Baji, Laszlo | |
| 10 | Balasko, Jeno | |
| 11 | Csorba, Mate | |
| 12 | Forstner, Matyas | |
| 13 | Raduly, Csaba | |
| 14 | Szabados, Kristof | |
| 15 | --> | |
| 970ed795 EL |
16 | <html> |
| 17 | <head> | |
| 18 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| 19 | <meta http-equiv="Content-Language" content="en-us"> | |
| 20 | <title>ischosen</title> | |
| 21 | </head> | |
| 22 | <body bgcolor="#DAD3C5" vlink="#0094D2" link="#003258"> | |
| 23 | <table align="left" border="0" cellspacing="0" cellpadding="0" valign=top> | |
| 24 | <tr> | |
| 25 | <td width=105 height=40><a href="https://projects.eclipse.org/projects/tools.titan"><img src="../images/titan_transparent.gif" border=0 width=105 height=40 align="left" alt="Titan"></a></td> | |
| 26 | </tr> | |
| 27 | </table> | |
| 28 | <table border="0" align="right" cellpadding="0" cellspacing="0"> | |
| 29 | <tr> | |
| 30 | <td><a href="../titan_main.html" alt="contents"><img border="0" src="../images/ao.jpg" width="53" height="40"></a></td> | |
| 31 | <td><a href="../titan_index.html" alt="index"><img border="0" src="../images/up.jpg" width="53" height="40"></a></td> | |
| 32 | <td><a alt="previous" href="isbound.html"><img border="0" src="../images/left.jpg" width="53" height="40"></a></td> | |
| 33 | <td><a alt="next" href="ispresent.html"><img border="0" src="../images/right.jpg" width="53" height="40"></a></td> | |
| 34 | </tr> | |
| 35 | </table> | |
| 36 | <p><br clear="all"> | |
| 37 | </p> | |
| 38 | <hr> | |
| 39 | <h1>ischosen</h1> | |
| 40 | <hr align="left" width="75%"> | |
| 41 | <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> | |
| 42 | type that is actually selected for a given data object. | |
| 43 | <hr align="left" width="50%"> | |
| 44 | <p>Related keyword:</p> | |
| 45 | <ul> | |
| 46 | <li><b><font face="Courier New" size="4" color="#003258"><a href="boolean.html">boolean</a></font></b></li> | |
| 47 | <li><b><a href="true.html"><font face="Courier New" size="4" color="#003258">true</font></a></b></li> | |
| 48 | <li><b><a href="false.html"><font face="Courier New" size="4" color="#003258">false</font></a></b></li> | |
| 49 | <li><b><a href="union.html"><font face="Courier New" size="4" color="#003258">union</font></a></b></li> | |
| 50 | </ul> | |
| 51 | <hr align="left" width="50%"> | |
| 52 | <div align="center"> | |
| 53 | <center> | |
| 54 | <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4"> | |
| 55 | <tr> | |
| 56 | <td width="100%"> | |
| 57 | <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 | |
| 58 | face="Courier New" color="#003258" size="5"><b>) return boolean</b></font></h3> | |
| 59 | </td> | |
| 60 | </tr> | |
| 61 | </table> | |
| 62 | </center> | |
| 63 | </div> | |
| 64 | <ul> | |
| 65 | </ul> | |
| 66 | <hr align="left" width="25%"> | |
| 67 | <p>Example 1:</p> | |
| 68 | <p><font face="Courier New"> type union MyUnion<br> | |
| 69 | { PDU_type1 p1,<br> | |
| 70 | PDU_type2 p2,<br> | |
| 71 | PDU_type p3<br> | |
| 72 | }<br> | |
| 73 | <br> | |
| 74 | <p>... | |
| 75 | <p> // and given that MyPDU is a template of MyUnion type<br> | |
| 76 | // and received_PDU is also of MyUnion type <br> | |
| 77 | // then <br> | |
| 78 | MyPort.receive(MyPDU) -> value received_PDU<br> | |
| 79 | <br> | |
| 80 | ischosen(received_PDU.p2)<br> | |
| 81 | // returns true if the actual instance of MyPDU carries a PDU of the type PDU_type2 | |
| 82 | </font></p> | |
| 83 | <hr align="left" width="25%"> | |
| 84 | </body> | |
| 85 | </html> |