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Added notes on interaction of different savers

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[SVN r20818]
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Daryle Walker
2003-11-16 07:27:36 +00:00
parent 30431241e2
commit 3328463521
1 changed files with 9 additions and 7 deletions
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doc/ios_state.html
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@@ -215,7 +215,7 @@ attribute back to the saved value.</p>
</tr>
<tr>
<td><code>boost::io::basic_ios_iostate_saver&lt;Ch, Tr&gt;</code></td>
<td>Failure state of the stream <a href="#Note1">[1]</a></td>
<td>Failure state of the stream <a href="#Note1">[1]</a>, <a href="#Note2">[2]</a></td>
<td><code>std::ios_base::iostate</code></td>
<td><code>rdstate</code></td>
<td><code>clear</code></td>
@@ -268,11 +268,13 @@ attribute back to the saved value.</p>
<li>When the associated stream buffer is changed, the stream's
failure state set is reset to &quot;good&quot; if the given stream
buffer's address is non-NULL, but the &quot;bad&quot; failure
state is set if that address is NULL. Given a NULL stream
buffer address, an exception is thrown if the &quot;bad&quot;
failure state is being watched. This could mean that the <a
name="Note2">constructor or destructor of this class template
may throw</a>.</li>
state is set if that address is NULL. This means that a saved
failure state of &quot;good&quot; may be restored as &quot;bad&quot;
if the stream is stripped of an associated stream buffer. Worse,
given a NULL stream buffer address, an exception is thrown if the
&quot;bad&quot; failure state is being watched. This could mean
that the <a name="Note2">constructor or destructor of these class
templates may throw</a>.</li>
<li>The <a name="Note3">saver for the locale uses the
<code>std::basic_ios&lt;Ch, Tr&gt;</code> class to extract their
information</a>, although it could have used the functionality
@@ -431,6 +433,6 @@ int main()
<p>Copyright 2002 Daryle Walker. Use, modification, and distribution
are subject to the Boost Software License, Version 1.0. (See accompanying
file <a href="../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or a copy at
&lt;<a href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>&gt;.</p>
&lt;<a href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>&gt;.)</p>
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