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ETSI's Bug Tracker - TTCN-3 Change Requests
</div></td>
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<tr class="even">
<td colspan="6" class="form-title">View Issue Details</td>
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<td colspan="6" class="print-spacer"><hr /></td>
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<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>
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<td class="print">0008112</td>
<td class="print">TTCN-3 Change Requests</td>
<td class="print">New Feature</td>
<td class="print">public</td>
<td class="print">17-08-2022 07:12</td>
<td class="print">23-01-2024 09:57</td>
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<td colspan="6" class="print-spacer"><hr /></td>
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<tr class="odd print">
<td class="print-category">Reporter</td>
<td class="print">Matthias Simon</td>
<td colspan="4" class="print"> </td>
</tr>
<tr class="even print">
<td class="print-category">Assigned To</td>
<td class="print">Tomas Urban</td>
<td colspan="4" class="print"> </td>
</tr>
<tr class="odd 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="even print">
<td class="print-category">Status</td>
<td class="print">closed</td>
<td class="print-category">Resolution</td>
<td class="print">won't fix</td>
<td colspan="2" class="print"> </td>
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<tr class="odd 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>
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<td class="print-category">Clause Reference(s)</td>
<td colspan="4" class="print">Core Language Spec</td>
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<td class="print-category">For STF discussion</td>
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<td class="print-category">Source (company - Author)</td>
<td colspan="4" class="print">Nokia -- Matthias Simon</td>
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<td class="print-category">Summary</td>
<td colspan="5" class="print">0008112: Combine boolean and bitwise
operators.</td>
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<tr class="odd print">
<td class="print-category">Description</td>
<td colspan="5" class="print">Currently TTCN-3 distinguishes between
boolean operators (and, or, not, ...) and bitwise operators (xor4b,
and4b, or4b, not4b, ...) for bit string types.<br />
 <br />
Combining those operators would reduce diversity towards a simpler
TTCN-3 grammar.<br />
<br />
Examples:<br />
<br />
    0b'1100' xor 0b'1010' // 0b'0110'<br />
    false xor false // false<br />
    true xor false // true<br />
<br />
<br />
The original bitwise operators would be deprecated.</td>
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<td class="print-category">Steps To Reproduce</td>
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<td class="print-category">Additional Information</td>
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<td class="print-category">Tags</td>
<td colspan="5" class="print">No tags attached.</td>
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<td class="print-category">Relationships</td>
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<td class="print-category">Attached Files</td>
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<td colspan="6" class="print-spacer"><hr /></td>
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<td class="form-title">Issue History</td>
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<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>
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<tr class="even print">
<td class="print">17-08-2022 07:12</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>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">17-08-2022 10:04</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; Tomas Urban</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">17-08-2022 10:04</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>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">17-08-2022 10:07</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: 0016229</td>
<td class="print"></td>
<td></td>
<td></td>
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<tr class="even print">
<td class="print">09-11-2022 11:33</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas
Urban</a></td>
<td class="print">Note Added: 0016273</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">09-11-2022 12:46</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: 0016279</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">09-11-2022 12:46</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: 0016280</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">09-11-2022 12:46</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">assigned =&gt; closed</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">09-11-2022 12:46</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; won't fix</td>
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<td colspan="2" class="form-title">Notes</td>
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<td class="print">(0016229)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens
Grabowski</a>   </td>
</tr>
<tr class="odd">
<td class="print">17-08-2022 10:07   </td>
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<td class="print">TTF discussion: "Merging" of all operators should be
checked.</td>
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<td class="print">(0016273)</td>
</tr>
<tr class="even">
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas
Urban</a>   </td>
</tr>
<tr class="odd">
<td class="print">09-11-2022 11:33   </td>
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<td class="print">Input for discussion:<br />
Impossible to achieve as proposed as the change would break operator
precedence.<br />
Simplification in java/C++/C# style is possible for logical operators:
&amp;&amp;, ||, ! (^^ could be introduced for logical xor) and most of
bitwise operators: |, ^, ~<br />
A similar change is problematic for bitwise operators as &amp; is used
for concatenation with a similar scope. Could be resolved with a
different symbol, such as #, $ or combination of symbols e.g.
:&amp;</td>
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data-cellspacing="1">
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<tr class="odd">
<td class="print">(0016279)</td>
</tr>
<tr class="even">
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens
Grabowski</a>   </td>
</tr>
<tr class="odd">
<td class="print">09-11-2022 12:46   </td>
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<td class="print">TTF discussion: Operators are in use and a change
would not be backwards compatible. Therefore the change cannot be
done.</td>
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<td class="print">(0016280)</td>
</tr>
<tr class="even">
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens
Grabowski</a>   </td>
</tr>
<tr class="odd">
<td class="print">09-11-2022 12:46   </td>
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<td class="nopad" data-valign="top" width="85%"><table class="hide"
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<td class="print">Non backwards compatible change.</td>
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