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1 | <!-- |
2 | Copyright (c) 2000-2014 Ericsson Telecom AB | |
3 | ||
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 | |
8 | --> | |
9 | <html> | |
10 | <head> | |
11 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
12 | <meta http-equiv="Content-Language" content="en-us"> | |
13 | <title>isbound</title> | |
14 | </head> | |
15 | <body bgcolor="#DAD3C5" vlink="#0094D2" link="#003258"> | |
16 | <table align="left" border="0" cellspacing="0" cellpadding="0" valign=top> | |
17 | <tr> | |
18 | <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> | |
19 | </tr> | |
20 | </table> | |
21 | <table border="0" align="right" cellpadding="0" cellspacing="0"> | |
22 | <tr> | |
23 | <td><a href="../titan_main.html" alt="contents"><img border="0" src="../images/ao.jpg" width="53" height="40"></a></td> | |
24 | <td><a href="../titan_index.html" alt="index"><img border="0" src="../images/up.jpg" width="53" height="40"></a></td> | |
25 | <td><a alt="previous" href="interleave.html"><img border="0" src="../images/left.jpg" width="53" height="40"></a></td> | |
26 | <td><a alt="next" href="ischosen.html"><img border="0" src="../images/right.jpg" width="53" height="40"></a></td> | |
27 | </tr> | |
28 | </table> | |
29 | <p><br clear="all"> | |
30 | </p> | |
31 | <hr> | |
32 | <h1>isbound</h1> | |
33 | <hr align="left" width="75%"> | |
34 | <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, | |
35 | with the following exception: isbound returns true for a record-of value which contains both bound and unbound elements, whereas <a href="isvalue.html">isvalue</a> returns false. | |
36 | <hr align="left" width="50%"> | |
37 | <p>Related keyword:</p> | |
38 | <ul> | |
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><font face="Courier New" size="4" color="#003258"><a href="false.html"> false</a></font></b></li> | |
42 | <li><b><font face="Courier New" size="4" color="#003258"> <a href="template.html">template</a></font></b></li> | |
43 | <li><b><font face="Courier New" size="4" color="#003258"> <a href="omit.html">omit</a></font></b></li> | |
44 | </ul> | |
45 | <hr align="left" width="50%"> | |
46 | <div align="center"> | |
47 | <center> | |
48 | <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4"> | |
49 | <tr> | |
50 | <td width="100%"> | |
51 | <h3 align="center"><font face="Courier New" color="#003258" size="5"><b>isbound</b></font> <font face="Courier New" color="#003258" size="5"><b> (</b></font><i>in template any_type | |
52 | inparameter</i><font face="Courier New" color="#003258" size="5"><b>)return boolean</b></font></h3> | |
53 | </td> | |
54 | </tr> | |
55 | </table> | |
56 | </center> | |
57 | </div> | |
58 | <hr align="left" width="25%"> | |
59 | <p>Example 1:</p> | |
60 | <p><font face="Courier New">type record MyRecordType { <br> | |
61 | integer field1 optional,<br> | |
62 | integer field2 optional<br> | |
63 | }<br> | |
64 | ...</font></p> | |
65 | <p><font face="Courier New">var MyRecordType v_MyRecord;<br> | |
66 | var template MyRecordType vt_MyRecordTemplate;<br> | |
67 | ...</font></p> | |
68 | <p><font face="Courier New">isbound(v_MyRecord); // return false<br> | |
69 | isbound(vt_MyRecordTemplate); // return false<br> | |
70 | ...</font></p> | |
71 | <p><font face="Courier New">v_MyRecord := { field1 := 5, field2 := omit}<br> | |
72 | vt_MyRecordTemplate := { field1 := ?, field2 := 5}<br> | |
73 | ...</font></p> | |
74 | <p><font face="Courier New">isbound(v_MyRecord); // return true<br> | |
75 | isbound(v_MyRecord.field2); // return false<br> | |
76 | isbound(vt_MyRecordTemplate); // return false<br> | |
77 | isbound(vt_MyRecordTemplate.field1); // return false<br> | |
78 | isbound(vt_MyRecordTemplate.field2); // return true<br> | |
79 | </font></p> | |
80 | <hr align="left" width="25%"> | |
81 | </body> | |
82 | </html> |