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<title>Issue 778: std::bitset does not have any constructor taking a string literal</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#CD1">CD1</a> status.</em></p>
<h3 id="778"><a href="lwg-defects.html#778">778</a>. std::bitset does not have any constructor taking a string literal</h3>
<p><b>Section:</b> 22.9.2.2 <a href="https://wg21.link/bitset.cons">[bitset.cons]</a> <b>Status:</b> <a href="lwg-active.html#CD1">CD1</a>
 <b>Submitter:</b> Thorsten Ottosen <b>Opened:</b> 2008-01-24 <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#bitset.cons">issues</a> in [bitset.cons].</p>
<p><b>View all issues with</b> <a href="lwg-status.html#CD1">CD1</a> status.</p>
<p><b>Duplicate of:</b> <a href="lwg-closed.html#116" title="bitset cannot be constructed with a const char* (Status: Dup)">116</a></p>
<p><b>Discussion:</b></p>
<p>
A small issue with <code>std::bitset</code>: it does not have any constructor
taking a string literal, which is clumsy and looks like an oversigt when
we tried to enable uniform use of <code>string</code> and <code>const char*</code> in the library.
</p>

<p>
Suggestion: Add
</p>

<blockquote><pre>
explicit bitset( const char* str );
</pre></blockquote>

<p>
to std::bitset.
</p>


<p id="res-778"><b>Proposed resolution:</b></p>
<p>
Add to synopsis in 22.9.2 <a href="https://wg21.link/template.bitset">[template.bitset]</a>
</p>

<blockquote><pre>
explicit bitset( const char* str );
</pre></blockquote>

<p>
Add to synopsis in 22.9.2.2 <a href="https://wg21.link/bitset.cons">[bitset.cons]</a>
</p>

<blockquote><pre>
explicit bitset( const char* str );
</pre>
<p>
<i>Effects:</i> Constructs a <code>bitset</code> as if <code>bitset(string(str))</code>.
</p>
</blockquote>






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