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8 Contributors:
9 Baji, Laszlo
10 Balasko, Jeno
11 Farkas, Laszlo
12 Gecse, Roland
13 Szabados, Kristof
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15 <html>
16 <head>
17 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
18 <meta http-equiv="Content-Language" content="en-us">
19 <title>infinity</title>
20 </head>
21 <body bgcolor="#DAD3C5" vlink="#0094D2" link="#003258">
22 <table align="left" border="0" cellspacing="0" cellpadding="0" valign=top>
23 <tr>
24 <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>
25 </tr>
26 </table>
27 <table border="0" align="right" cellpadding="0" cellspacing="0">
28 <tr>
29 <td><a href="../titan_main.html" alt="contents"><img border="0" src="../images/ao.jpg" width="53" height="40"></a></td>
30 <td><a href="../titan_index.html" alt="index"><img border="0" src="../images/up.jpg" width="53" height="40"></a></td>
31 <td><a alt="previous" href="inconc.html"><img border="0" src="../images/left.jpg" width="53" height="40"></a></td>
32 <td><a href="inout.html" alt="next"><img border="0" src="../images/right.jpg" width="53" height="40"></a></td>
33 </tr>
34 </table>
35 <p><br clear="all">
36 </p>
37 <hr>
38 <h1>infinity</h1>
39 <hr align="left" width="75%">
40 <p>The keyword is used for sub-typing to indicate that:</p>
41 <ul>
42 <li>the range of an integer value is not limited,</li>
43 <li>the range of an floating point value is not limited,</li>
44 <li>the length of a string is not limited</li>
45 <li>the numer of elements in <font face="Courier New"><b>set of</b></font> and <font face="Courier New"><b>record of</b></font> is not limited.</li>
46 </ul>
47 <p>In case of integer and floating point numbers both positive and negative infinity may be used, for strings and <font face="Courier New"><b><a href="of.html">set/record of</a></b></font> only
48 postivie infinity is meaningful.</p>
49 <p>Related keywords:</p>
50 <ul>
51 <li><a href="bitstring.html"><b><font face="Courier New" color="#003258" size="4">bitstring</font></b></a></li>
52 <li><a href="charstring.html"><b><font face="Courier New" color="#003258" size="4">charstring</font></b></a></li>
53 <li><a href="float.html"><b><font face="Courier New" color="#003258" size="4">float</font></b></a></li>
54 <li><a href="hexstring.html"><b><font face="Courier New" color="#003258" size="4">hexstring</font></b></a></li>
55 <li><a href="integer.html"><b><font face="Courier New" color="#003258" size="4">integer</font></b></a></li>
56 <li><a href="octetstring.html"><b><font face="Courier New" color="#003258" size="4">octetstring</font></b></a></li>
57 <li><a href="of.html"><b><font face="Courier New" color="#003258" size="4">of</font></b></a></li>
58 <li><a href="type.html"><b><font face="Courier New" color="#003258" size="4">type</font></b></a></li>
59 <li><a href="universal.html"><b><font face="Courier New" color="#003258" size="4">universal</font></b></a></li>
60 </ul>
61 <hr align="left" width="50%">
62 <div align="center">
63 <center>
64 <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4">
65 <tr>
66 <td width="100%">
67 <h3 align="center"><b><font color="#003258">[</font><font face="Courier New" color="#003258" size="5">-</font><font color="#003258">]</font><font face="Courier New" color="#003258"
68 size="5">infinity</font> </b></h3>
69 </td>
70 </tr>
71 </table>
72 </center>
73 </div>
74 <hr align="left" width="50%">
75 <p><a name="double_quotation">Example 1</a>:
76 <p><font face="Courier New">type integer Cele (-infinity .. 18);<br>
77 </font>
78 <p>The values of type Cele are integers less than or equal to eighteen. There is no limit for negative values.</p>
79 <hr align="left" width="50%">
80 <p><a name="quotation_inside">Example 2</a>:
81 <p><font face="Courier New">type float Mergitur (1.0E03 .. infinity);<br>
82 </font>
83 <p>Type Mergitur contains only those real values, which are greater than or equal to one thousand. Values except for this range are disallowed.</p>
84 <hr align="left" width="50%">
85 <p><a name="quotation_inside">Example 3</a>:
86 <p><font face="Courier New">type universal charstring Longue length (11 .. infinity);<br>
87 var Longue v_longue; </font>
88 <p>The variable v_longue can have at least 11 characters (quadruples). An upper limit is not given.</p>
89 <hr align="left" width="50%">
90 <p><a name="relation">Example 4</a>:
91 <p><code> type record length (42 788 830 .. infinity) of integer Egeeszek; </code>
92 <p>A valid value of type Egeeszek must contain at least forty-two million seven hundred eighty-eight thousand eight hundred thirty elements. An upper limit is not given.</p>
93 <hr align="left" width="25%">
94 <hr align="left" width="25%">
95 <p align="left"><a HREF="BNF.html#infinitykeyword">BNF definition</a> of <font face="Courier New">infinity</font></p>
96 </body>
97 </html>
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