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to_stream sets failbit if required to supply a bad name:

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* for an invalid month
* for an invalid weekday
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Howard Hinnant
2017-10-15 13:55:01 -04:00
parent f00a77882b
commit 3370dab0ed
2 changed files with 20 additions and 10 deletions
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16
d0355r4.html
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@@ -37,7 +37,7 @@
Document number: D0355R4<br>
<br>
<a href="mailto:howard.hinnant@gmail.com">Howard E. Hinnant</a><br>
2017-10-14<br>
2017-10-15<br>
</address>
<hr>
<h1>Extending <code>&lt;chrono&gt;</code> to Calendars and Time Zones</h1>
@@ -59,6 +59,8 @@ Document number: D0355R4<br>
<h3>Changes since <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0355r3.html">R3</a></h3>
<ul>
<li><code>to_stream</code> sets <code>failbit</code> if it is required to create a name
for an invalid month or weekday.</li>
<li>Add note to promise compatibility with <a href="https://wg21.link/p0645"><code>fmt</code> (P0645)</a></li>
<li>Have <code>format</code> throw an exception if anything happens so that it
could not return an accurate string.</li>
@@ -3106,22 +3108,26 @@ in <code>fmt</code>, <code>ios_base::failbit</code> will be set on <code>os</cod
<tr>
<td><code>%a</code></td>
<td>The locale's abbreviated weekday name.</td>
<td>The locale's abbreviated weekday name. If the value does not contain a valid
<code>weekday</code>, <code>ios::failbit</code> is set.</td>
</tr>
<tr>
<td><code>%A</code></td>
<td>The locale's full weekday name.</td>
<td>The locale's full weekday name. If the value does not contain a valid
<code>weekday</code>, <code>ios::failbit</code> is set.</td>
</tr>
<tr>
<td><code>%b</code></td>
<td>The locale's abbreviated month name.</td>
<td>The locale's abbreviated month name. If the value does not contain a valid
<code>month</code>, <code>ios::failbit</code> is set.</td>
</tr>
<tr>
<td><code>%B</code></td>
<td>The locale's full month name.</td>
<td>The locale's full month name. If the value does not contain a valid
<code>month</code>, <code>ios::failbit</code> is set.</td>
</tr>
<tr>

14
date.html
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@@ -26,7 +26,7 @@
<br/>
<br/>
<a href="mailto:howard.hinnant@gmail.com">Howard E. Hinnant</a><br/>
2017-10-14<br/>
2017-10-15<br/>
</address>
<hr/>
<h1 align=center><code>date</code></h1>
@@ -7673,22 +7673,26 @@ unchanged into the stream.
<tr>
<td><code>%a</code></td>
<td>The locale's abbreviated weekday name.</td>
<td>The locale's abbreviated weekday name. If the value does not contain a valid
<code>weekday</code>, <code>std::ios::failbit</code> is set.</td>
</tr>
<tr>
<td><code>%A</code></td>
<td>The locale's full weekday name.</td>
<td>The locale's full weekday name. If the value does not contain a valid
<code>weekday</code>, <code>std::ios::failbit</code> is set.</td>
</tr>
<tr>
<td><code>%b</code></td>
<td>The locale's abbreviated month name.</td>
<td>The locale's abbreviated month name. If the value does not contain a valid
<code>month</code>, <code>std::ios::failbit</code> is set.</td>
</tr>
<tr>
<td><code>%B</code></td>
<td>The locale's full month name.</td>
<td>The locale's full month name. If the value does not contain a valid
<code>month</code>, <code>std::ios::failbit</code> is set.</td>
</tr>
<tr>