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<br /><table class="width100" cellspacing="1"><tr><td class="form-title" colspan="6"><div class="center">ETSI's Bug Tracker - Part 01: TTCN-3 Core Language</div></td></tr><tr><td class="form-title" colspan="6">View Issue Details</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print-category"><td class="print" width="16%">ID</td><td class="print" width="16%">Project</td><td class="print" width="16%">Category</td><td class="print" width="16%">View Status</td><td class="print" width="16%">Date Submitted</td><td class="print" width="16%">Last Update</td></tr><tr class="print"><td class="print">0008103</td><td class="print">Part 01: TTCN-3 Core Language</td><td class="print">New Feature</td><td class="print">public</td><td class="print">09-08-2022 15:10</td><td class="print">03-01-2023 13:12</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print"><td class="print-category">Reporter</td><td class="print">Matthias Simon</td><td class="print" colspan="4">&#160;</td></tr><tr class="print"><td class="print-category">Assigned To</td><td class="print">Jens Grabowski</td><td class="print" colspan="4">&#160;</td></tr><tr class="print"><td class="print-category">Priority</td><td class="print">normal</td><td class="print-category">Severity</td><td class="print">minor</td><td class="print-category">Reproducibility</td><td class="print">have not tried</td></tr><tr class="print"><td class="print-category">Status</td><td class="print">closed</td><td class="print-category">Resolution</td><td class="print">fixed</td><td class="print" colspan="2">&#160;</td></tr><tr class="print"><td class="print-category">Platform</td><td class="print"></td><td class="print-category">OS</td><td class="print"></td><td class="print-category">OS Version</td><td class="print"></td></tr><tr class="print"><td class="print-category">Product Version</td><td class="print"></td><td class="print" colspan="4">&#160;</td></tr><tr><td class="print-category">Target Version</td><td class="print"></td><td class="print-category">Fixed in Version</td><td class="print"></td><td class="print" colspan="2">&#160;</td></tr><tr class="print"><td class="print-category">Clause Reference(s)</td><td class="print" colspan="4">19 -- Basic program statements</td></tr><tr class="print"><td class="print-category">Source  (company  - Author)</td><td class="print" colspan="4">Nokia - Matthias Simon</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print"><td class="print-category">Summary</td><td class="print" colspan="5">0008103: Add increment and decrement statement</td></tr><tr class="print"><td class="print-category">Description</td><td class="print" colspan="5">SUMMARY<br />
<br />
The post increment operator in C has a bad reputation, because its unfavorable specification creates multiple undefined behavior scenarios.<br />
<br />
However, incrementing by one is so common in TTCN-3 that introducing some kind of increment instruction is justified.<br />
<br />
PROPOSAL<br />
<br />
Introduce a increment and decrement *statement*. A statement cannot be used in expressions, only in places where it's safe. Examples:<br />
<br />
&#160;&#160;&#160;&#160;for(i:=0; i&lt;10; i++) // okay.<br />
&#160;&#160;&#160;&#160;log(i++) // not okay.<br />
&#160;</td></tr><tr class="print"><td class="print-category">Steps To Reproduce</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Additional Information</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Tags</td><td class="print" colspan="5">No tags attached.</td></tr><tr class="print"><td class="print-category">Relationships</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Attached Files</td><td class="print" colspan="5"><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="docx" />&#160;CR8103.docx (139,230) <span class="italic">07-12-2022 11:54</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=4088&amp;type=bug</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr><td class="form-title">Issue History</td></tr><tr class="print-category"><td class="row-category-history">Date Modified</td><td class="row-category-history">Username</td><td class="row-category-history">Field</td><td class="row-category-history">Change</td></tr><tr class="print"><td class="print">09-08-2022 15:10</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=1237">Matthias Simon</a></td><td class="print">New Issue</td><td class="print"></td></tr><tr class="print"><td class="print">16-08-2022 12:18</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Note Added: 0016218</td><td class="print"></td></tr><tr class="print"><td class="print">16-08-2022 12:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Assigned To</td><td class="print"> =&gt; Jens Grabowski</td></tr><tr class="print"><td class="print">16-08-2022 12:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Status</td><td class="print">new =&gt; assigned</td></tr><tr class="print"><td class="print">16-08-2022 14:14</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Project</td><td class="print">TTCN-3 Change Requests =&gt; Part 01: TTCN-3 Core Language</td></tr><tr class="print"><td class="print">11-11-2022 11:36</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Note Added: 0016310</td><td class="print"></td></tr><tr class="print"><td class="print">11-11-2022 11:36</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Assigned To</td><td class="print">Jens Grabowski =&gt; Axel Rennoch</td></tr><tr class="print"><td class="print">06-12-2022 14:15</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a></td><td class="print">Note Added: 0016360</td><td class="print"></td></tr><tr class="print"><td class="print">06-12-2022 14:15</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a></td><td class="print">Assigned To</td><td class="print">Axel Rennoch =&gt; Jens Grabowski</td></tr><tr class="print"><td class="print">07-12-2022 09:15</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Note Added: 0016367</td><td class="print"></td></tr><tr class="print"><td class="print">07-12-2022 09:15</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Assigned To</td><td class="print">Jens Grabowski =&gt; Axel Rennoch</td></tr><tr class="print"><td class="print">07-12-2022 11:54</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a></td><td class="print">File Added: CR8103.docx</td><td class="print"></td></tr><tr class="print"><td class="print">07-12-2022 11:55</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a></td><td class="print">Note Added: 0016370</td><td class="print"></td></tr><tr class="print"><td class="print">07-12-2022 11:55</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a></td><td class="print">Assigned To</td><td class="print">Axel Rennoch =&gt; Jens Grabowski</td></tr><tr class="print"><td class="print">07-12-2022 11:55</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a></td><td class="print">Status</td><td class="print">assigned =&gt; confirmed</td></tr><tr class="print"><td class="print">16-12-2022 09:22</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Note Added: 0016425</td><td class="print"></td></tr><tr class="print"><td class="print">16-12-2022 09:22</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Status</td><td class="print">confirmed =&gt; resolved</td></tr><tr class="print"><td class="print">16-12-2022 09:22</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Resolution</td><td class="print">open =&gt; fixed</td></tr><tr class="print"><td class="print">03-01-2023 13:12</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Note Added: 0016449</td><td class="print"></td></tr><tr class="print"><td class="print">03-01-2023 13:12</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Status</td><td class="print">resolved =&gt; closed</td></tr></table>
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				(0016218)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a>&#160;&#160;&#160;
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				16-08-2022 12:18&#160;&#160;&#160;
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				TTF discussion: Idea appreciated. Decrement should also be added.			</td>
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				(0016310)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a>&#160;&#160;&#160;
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				11-11-2022 11:36&#160;&#160;&#160;
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				Axel, can you have a look?			</td>
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				(0016360)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a>&#160;&#160;&#160;
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				06-12-2022 14:15&#160;&#160;&#160;
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				The approach may be to add a new subsection &quot;7.1.8 Increment and Decrement operators&quot; to explain the functionality of &quot;++&quot; and &quot;--&quot;.<br />
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In addition the section &quot;19.1 Assignments&quot; and the BNF rule 539 may be subject to an update to allow the new sytax: ValueRef&quot;++&quot; and ValueRef&quot;--&quot;.			</td>
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				(0016367)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a>&#160;&#160;&#160;
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				07-12-2022 09:15&#160;&#160;&#160;
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				TTF discussion: Increment and Decrement should become stand-alone statements and not operators. They may become subsections of 19.1. The BNF change in assignment rules looks ok.			</td>
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				(0016370)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=514">Axel Rennoch</a>&#160;&#160;&#160;
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				07-12-2022 11:55&#160;&#160;&#160;
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				Please check the proposed solution file.			</td>
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				(0016425)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a>&#160;&#160;&#160;
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				16-12-2022 09:22&#160;&#160;&#160;
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				ok			</td>
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				(0016449)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a>&#160;&#160;&#160;
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				03-01-2023 13:12&#160;&#160;&#160;
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				Implemented as proposed			</td>
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