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<title>Issue 1452: "target sequence" is not defined</title>
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<p><em>This page is a snapshot from the LWG issues list, see the <a href="lwg-active.html">Library Active Issues List</a> for more information and the meaning of <a href="lwg-active.html#NAD">NAD</a> status.</em></p>
<h3 id="1452"><a href="lwg-closed.html#1452">1452</a>. "target sequence" is not defined</h3>
<p><b>Section:</b> 28.6.9.5 <a href="https://wg21.link/re.results.acc">[re.results.acc]</a> <b>Status:</b> <a href="lwg-active.html#NAD">NAD</a>
 <b>Submitter:</b> BSI <b>Opened:</b> 2010-08-25 <b>Last modified:</b> 2016-01-28</p>
<p><b>Priority: </b>Not Prioritized
</p>
<p><b>View all other</b> <a href="lwg-index.html#re.results.acc">issues</a> in [re.results.acc].</p>
<p><b>View all issues with</b> <a href="lwg-status.html#NAD">NAD</a> status.</p>
<p><b>Discussion:</b></p>
<p><b>Addresses GB-125</b></p>

<p>The term "target sequence" is not defined (28.6.9.5 <a href="https://wg21.link/re.results.acc">[re.results.acc]</a> p. 2).</p>

<p><i>[
Resolution proposed by ballot comment:
]</i></p>

<p>
Replace "target sequence" with "string being searched/matched"
</p>

<p><i>[
2010-11-01 Daniel comments:
]</i></p>

<p>
The proposed resolution looks incomplete to me, there are more normative
usages of the term <em>target sequence</em> in clause 28, e.g.
28.6.11.2 <a href="https://wg21.link/re.tokiter">[re.tokiter]</a> p. 7.
</p>

<p><i>[2011-03-22 Madrid meeting: Moved to NAD]</i></p>




<p><b>Rationale:</b></p><p>Standard is correct as written</p>

<p id="res-1452"><b>Proposed resolution:</b></p>
<p>
Wording changes are against N3126. They are intended not to conflict with the wording changes
suggested by <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3158.html">n3158</a>.
</p>
<p>
Change 28.6.9.5 <a href="https://wg21.link/re.results.acc">[re.results.acc]</a> p. 2 as indicated:
</p>
<blockquote><pre>
difference_type position(size_type sub = 0) const;
</pre><blockquote><p>
2 <em>Returns</em>: The distance from the start of the <del>target sequence</del><ins>string being matched</ins> to <code>(*this)[sub].first</code>.
</p></blockquote></blockquote>





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