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<H1 CLASS="title">Release Notes</H1>
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<h4>1.44</h4>
<p>Lots of fixes in this version, almost all are by Steven Watanabe.</p>
<p>File descriptor fixes:</p>
<ul>
<li>
<strong>Breaking change:</strong>
new constructors and <code>open</code> methods from file descriptors/handles for
<code>file_descriptor</code>, <code>file_descriptor_source</code>
and <code>file_descriptor_sink</code>. See
<a title="File descriptor devices referece" href="classes/file_descriptor.html">the documentation</a>
for details. The old methods are still available if you define
<code>BOOST_IOSTREAMS_USE_DEPRECATED</code>
(<a href="https://svn.boost.org/trac/boost/ticket/3517">#3517</a>).
</li>
<li>
Add <code>BOOST_IOSTREAMS_DECL</code> to
<code>file_descriptor_source</code> and
<code>file_descriptor_sink</code> fixing their use in dynamic libraries
(<a href="https://svn.boost.org/trac/boost/ticket/4335">#4335</a>).
</li>
<li>
Rejigger <code>file_descriptors</code> handling of
<code>std::ios_base::openmode</code> to match <code>std::fstream</code>.
In particular, truncate existing files, if
<code>std::ios_base::trunc</code> is passed
(<a href="https://svn.boost.org/trac/boost/ticket/3323">#3323</a>).
</li>
<li>
Open files in append mode on Windows instead of seeking to the end at every
write when <code>std::ios_base::app</code> is passed
(<a href="https://svn.boost.org/trac/boost/ticket/3323">#3323</a>).
</li>
</ul>
<p>Compression/decompression fixes:</p>
<ul>
<li>
Don't end the stream produced by a reading through a symmetric_filter
prematurely
(<a href="https://svn.boost.org/trac/boost/ticket/2318">#2318</a>).
</li>
<li>
Allow building zlib 1.2.4+, using a glob to include only source files that
actually exist
(<a href="https://svn.boost.org/trac/boost/ticket/4091">#4091</a>).
</li>
<li>
Fix compressing an empty string.
</li>
<li>
Allow bzip2 filters to be closed even if no input has been read
(<a href="https://svn.boost.org/trac/boost/ticket/3348">#3348</a>).
</li>
<li>
Throw an exception on an unexpected end of file in
<code>bzip2_decompressor</code> instead of going into an infinite loop
(<a href="https://svn.boost.org/trac/boost/ticket/2783">#2783</a>).
</li>
<li>
Reset the crc for zlib when we reuse a filter.
</li>
<li>
Make <code>gzip_decompressor</code> a <code>DualUseFilter</code>
(<a href="https://svn.boost.org/trac/boost/ticket/1579">#1579</a>).
</li>
<li>
Allow <code>bzip2_decompressor</code> to process multiple concatenated
streams
(<a href="https://svn.boost.org/trac/boost/ticket/3853">#3853</a>).
</li>
</ul>
<p>Other fixes:</p>
<ul>
<li>
Make <code>aggregate_filter</code> work with wide characters
(<a href="https://svn.boost.org/trac/boost/ticket/3851">#3851</a>).
</li>
<li>
Make <code>symmetric_filter</code> compile with <code>wchar_t</code>
(<a href="https://svn.boost.org/trac/boost/ticket/3279">#3279</a>).
</li>
<li>
Fix <code>boost/iostreams/detail/resolve.hpp</code> compilation on xlc.
</li>
<li>
Fix definition of <code>multichar_dual_use_filter_tag</code>
(<a href="https://svn.boost.org/trac/boost/ticket/3689">#3689</a>).
</li>
<li>
Make <code>concept_adapter</code> work with custom <code>char_traits</code>
(<a href="https://svn.boost.org/trac/boost/ticket/2356">#2356</a>).
</li>
<li>
On windows, open mapped files with just read/write permissions, rather than
full control - which might not be available
(<a href="https://svn.boost.org/trac/boost/ticket/2996">#2996</a>).
</li>
<li>
Make sure that <code>direct_streambuf</code> and
<code>indirect_streambuf</code> are reset correctly on open
(<a href="https://svn.boost.org/trac/boost/ticket/4102">#4102</a>).
</li>
<li>
Make <code>basic_file</code> and <code>basic_file_sync</code>
<code>Flushable</code>
(<a href="https://svn.boost.org/trac/boost/ticket/2998">#2998</a>).
</li>
<li>
Several documentation improvements, including
documenting private mapping with <code>mapped_file</code>
(<a href="https://svn.boost.org/trac/boost/ticket/1612">#1612</a>).
</li>
<li>
Make the tests more reliable by using Boost.Filesystem's
<code>unique_path</code> instead of <code>tmpnam</code>
(<a href="https://svn.boost.org/trac/boost/ticket/2325">#2325</a>).
</li>
</ul>
<h4>1.43</h4>
<p>
More fixes.
</p>
<ul>
<li>
Fix <code>write_device_impl<ostream_tag></code>
(<a href="https://svn.boost.org/trac/boost/ticket/3839">#3839</a>).
</li>
<li>
Fix error checks after calling SetFilePointer
(<a href="https://svn.boost.org/trac/boost/ticket/3953">#3953</a>).
</li>
<li>
Gzip filter shouldn't require its source to be peekable
(<a href="https://svn.boost.org/trac/boost/ticket/3723">#3723</a>).
</li>
<li>
In <code>position_to_offset</code>, only cast to
<code>stream_offset</code> after calculating <code>_Myoff</code>
(<a href="https://svn.boost.org/trac/boost/ticket/3969">#3969</a>).
</li>
<li>
<code>ptrdiff_t</code> is in <code>std</code>
(<a href="https://svn.boost.org/trac/boost/ticket/2505">#2505</a>).
</li>
</ul>
<h4>1.42</h4>
<p>
Fixed many outstanding issues. Thanks to Richard Smith for working on a lot
of these changes.
</p>
<ul>
<li>
Allocate exceptions on the stack, not the heap (<a href="https://svn.boost.org/trac/boost/ticket/3612">#3612</a>).
</li>
<li>
Fix unthrown exceptions. (<a href="https://svn.boost.org/trac/boost/ticket/3311">#3311</a>).
</li>
<li>
Use <code>boost::throw_exception</code> to throw exceptions
(<a href="https://svn.boost.org/trac/boost/ticket/2094">#2094</a>).
</li>
<li>
Add missing include guard (<a href="https://svn.boost.org/trac/boost/ticket/3010">#3010</a>).
</li>
<li>
Use the correct type for buffer_size and pback_size parameters (<a href="https://svn.boost.org/trac/boost/ticket/2894">#2894</a>).
</li>
<li>
Support <code>boost::ref(std::istream)</code> in code_converter (<a href="https://svn.boost.org/trac/boost/ticket/3011">#3011</a>).
</li>
<li>
Fix CRC on x64 during gzip decompression (<a href="https://svn.boost.org/trac/boost/ticket/3352">#3352</a>).
</li>
<li>
Fix mapped file errors in windows (<a href="https://svn.boost.org/trac/boost/ticket/3505">#3505</a>).
</li>
<li>
Improved support for Visual C++ 2010.
</li>
<li>
Fix usage requirements in boost build.
</li>
<li>
Fix some boundary checks in <code>restrict</code> and <code>slice</code>.
</li>
<li>
Some minor documentation fixes.
</li>
<li>
Avoid Apple macro substitutions for <code>check</code>.
</li>
</ul>
<h4>1.41</h4>
<p>
Some old unreleased developments. There are still several open issues that
should be fixed in the next version.
</p>
<ul>
<li>
Add a grep filter (<a href="https://svn.boost.org/trac/boost/ticket/1627">#1627</a>).
</li>
<li>
Support archives with multiple members (<a href="https://svn.boost.org/trac/boost/ticket/1896">#1896</a>).
</li>
<li>
Make <code><span class="identifier">tee</span></code> work with input
streams (<a href="https://svn.boost.org/trac/boost/ticket/791">#791</a>).
</li>
<li>
Improved filesystem interoperability.
</li>
<li>
Several warnings fixed or suppressed (including
<a href="https://svn.boost.org/trac/boost/ticket/1618">#1618</a>,
<a href="https://svn.boost.org/trac/boost/ticket/1875">#1875</a>,
<a href="https://svn.boost.org/trac/boost/ticket/2779">#2779</a>).
</li>
<li>
Various other fixes (including
<a href="https://svn.boost.org/trac/boost/ticket/1580">#1580</a>,
<a href="https://svn.boost.org/trac/boost/ticket/1671">#1671</a>).
</li>
</ul>
<h3>1.35</h3>
<P>1. The semantics of <A HREF="functions/close.html"><CODE>close</CODE></A> has been modified:</P>
<UL>
<LI>Calling <CODE>close</CODE> with a <CODE>std::ios_base::openmode</CODE> other than <CODE>in</CODE> or <CODE>out</CODE> is deprecated.</LI>
<LI>A new overload of <CODE>close</CODE> taking a single Device argument has been provided as a convenience.</LI>
<LI><A HREF="concepts/dual_use_filter.html">DualUseFilters</A> receive only one closure notification.</LI>
<LI><A HREF="guide/generic_streams.html">Generic streams and stream buffers</A> and <A HREF="guide/filtering_streams.html">filtering streams and stream buffers</A> are now <A HREF="concepts/closable.html">Closable</A>. For filtering streams and stream buffers, <CODE>close</CODE> calls <A HREF="classes/filtering_stream.html#pop"><CODE>pop</CODE></A>.
</UL>
<P><EM>These changes will break some existing code</EM>. They were necessary to resolve inconsistencies in the prior specification that resulted in a number of reported bugs.</P>
<P>2. The function template <a href="functions/slice.html"><code>slice</code></a> has been introduced as an alias of <a href="functions/restrict.html"><code>restrict</code></a>, for platforms that treat <code>restrict</code> as a keyword.</P>
<P>3. Numerous bugs have been fixed, many relating to <a href="functions/close.html"><code>close</code></a>, <a href="functions/copy.html"><code>copy</code></a>, and <a href="classes/file_descriptor.html">file descriptors</a>.</P>
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<P CLASS="copyright">Revised 02 Feb 2008</P>
<P CLASS="copyright">© Copyright 2008 <a href="http://www.coderage.com/" target="_top">CodeRage, LLC</a><br/>© Copyright 2004-2007 <a href="http://www.coderage.com/turkanis/" target="_top">Jonathan Turkanis</a></P>
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Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <A HREF="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>)
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