<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Issue 318: Misleading comment in definition of numpunct_byname</title>
<meta property="og:title" content="Issue 318: Misleading comment in definition of numpunct_byname">
<meta property="og:description" content="C++ library issue. Status: CD1">
<meta property="og:url" content="https://cplusplus.github.io/LWG/issue318.html">
<meta property="og:type" content="website">
<meta property="og:image" content="http://cplusplus.github.io/LWG/images/cpp_logo.png">
<meta property="og:image:alt" content="C++ logo">
<style>
  p {text-align:justify}
  li {text-align:justify}
  pre code.backtick::before { content: "`" }
  pre code.backtick::after { content: "`" }
  blockquote.note
  {
    background-color:#E0E0E0;
    padding-left: 15px;
    padding-right: 15px;
    padding-top: 1px;
    padding-bottom: 1px;
  }
  ins {background-color:#A0FFA0}
  del {background-color:#FFA0A0}
  table.issues-index { border: 1px solid; border-collapse: collapse; }
  table.issues-index th { text-align: center; padding: 4px; border: 1px solid; }
  table.issues-index td { padding: 4px; border: 1px solid; }
  table.issues-index td:nth-child(1) { text-align: right; }
  table.issues-index td:nth-child(2) { text-align: left; }
  table.issues-index td:nth-child(3) { text-align: left; }
  table.issues-index td:nth-child(4) { text-align: left; }
  table.issues-index td:nth-child(5) { text-align: center; }
  table.issues-index td:nth-child(6) { text-align: center; }
  table.issues-index td:nth-child(7) { text-align: left; }
  table.issues-index td:nth-child(5) span.no-pr { color: red; }
  @media (prefers-color-scheme: dark) {
     html {
        color: #ddd;
        background-color: black;
     }
     ins {
        background-color: #225522
     }
     del {
        background-color: #662222
     }
     a {
        color: #6af
     }
     a:visited {
        color: #6af
     }
     blockquote.note
     {
        background-color: rgba(255, 255, 255, .10)
     }
  }
</style>
</head>
<body>
<hr>
<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="318"><a href="lwg-defects.html#318">318</a>. Misleading comment in definition of numpunct_byname</h3>
<p><b>Section:</b> 28.3.4.4.2 <a href="https://wg21.link/locale.numpunct.byname">[locale.numpunct.byname]</a> <b>Status:</b> <a href="lwg-active.html#CD1">CD1</a>
 <b>Submitter:</b> Martin Sebor <b>Opened:</b> 2001-05-12 <b>Last modified:</b> 2016-01-28</p>
<p><b>Priority: </b>Not Prioritized
</p>
<p><b>View all issues with</b> <a href="lwg-status.html#CD1">CD1</a> status.</p>
<p><b>Discussion:</b></p>
<p>The definition of the numpunct_byname template contains the following
comment:</p>

<pre>
    namespace std {
        template &lt;class charT&gt;
        class numpunct_byname : public numpunct&lt;charT&gt; {
    // this class is specialized for char and wchar_t.
        ...
</pre>

<p>There is no documentation of the specializations and it seems
conceivable that an implementation will not explicitly specialize the
template at all, but simply provide the primary template.</p>


<p id="res-318"><b>Proposed resolution:</b></p>
<p>Remove the comment from the text in 22.2.3.2 and from the proposed
resolution of library issue <a href="lwg-defects.html#228" title="Incorrect specification of &quot;..._byname&quot; facets (Status: CD1)">228</a><sup><a href="https://cplusplus.github.io/LWG/issue228" title="Latest snapshot">(i)</a></sup>.</p>




</body>
</html>
