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updated boost from 1_33_1 to 1_34_1
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6<title>Boost.MultiIndex Documentation - Release notes</title>
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15<h1><img src="../../../boost.png" alt="boost.png (6897 bytes)" align=
16"middle" width="277" height="86">Boost.MultiIndex Release notes</h1>
17
18<div class="prev_link"><a href="future_work.html"><img src="prev.gif" alt="future work" border="0"><br>
19Future work
20</a></div>
21<div class="up_link"><a href="index.html"><img src="up.gif" alt="index" border="0"><br>
22Index
23</a></div>
24<div class="next_link"><a href="acknowledgements.html"><img src="next.gif" alt="acknowledgements" border="0"><br>
25Acknowledgements
26</a></div><br clear="all" style="clear: all;">
27
28<hr>
29
30
31<h2>Contents</h2>
32
33<ul>
34  <li><a href="#boost_1_34">Boost 1.34 release</a></li>
35  <li><a href="#boost_1_33_1">Boost 1.33.1 release</a></li>
36  <li><a href="#boost_1_33">Boost 1.33 release</a></li>
37</ul>
38
39<h2><a name="boost_1_34">Boost 1.34 release</a></h2>
40
41<p>
42<ul>
43  <li>Added <a href="tutorial/indices.html#rnd_indices">random access
44    indices</a>.
45  </li>
46  <li>Non key-based indices provide new
47    <a href="tutorial/indices.html#rearrange">rearrange facilities</a>
48    allowing for interaction with external mutating algorithms.
49  </li>
50  <li>All predefined Boost.MultiIndex key extractors
51    instantiated for a given type <code>T</code> can handle objects of types
52    derived from or convertible to <code>T</code> (and
53    <a href="reference/key_extraction.html#chained_pointers">chained pointers</a>
54    to those). Previously, only objects of the exact type specified (along with
55    <code>reference_wrapper</code>s and chained pointers to them) were accepted.
56  </li>
57  <li><a href="reference/key_extraction.html#composite_key_compare"><code>composite_key_compare</code></a>
58    and related classes accept operands not included in tuples as if they were passed
59    in a tuple of length 1; this allows the user to omit tuple enclosing in
60    lookup operations involving composite keys when only the first key is provided.
61  </li>
62  <li>The core algorithms of ordered indices have been optimized, yielding
63    an estimated reduction of about 5% in insertion times.
64  </li>
65  <li>Size of ordered indices node headers have been reduced by 25% on
66    most platforms, using a well known
67    <a href="tutorial/indices.html#ordered_node_compression">optimization
68    technique</a>.
69  </li>
70  <li>The tutorial has been restructured, new examples added.</li>
71  <li>Maintenance fixes.</li>
72</ul>
73</p>
74
75<h2><a name="boost_1_33_1">Boost 1.33.1 release</a></h2>
76
77<p>
78<ul>
79  <li>For ordered and hashed indices, <code>erase(it)</code> and
80    <code>erase(first,last)</code> now return an iterator to the element
81    following those being deleted (previously nothing was returned), in
82    accordance with the C++ Standard Library
83    <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#130">Defect
84    Report 130</a> and issue 6.19 of TR1
85    <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1837.pdf">Issues
86    List</a>.
87  </li>
88  <li>Boost.MultiIndex offers the usual guarantees with respect to
89    multithreading code provided by most STL implementations:
90    <ol>
91      <li>Concurrent access to different containers is safe.</li>
92      <li>Concurrent read-only access to the same container is safe.</li>
93    </ol>
94    In previous versions of the library, the latter guarantee was not properly
95    maintained if the <a href="tutorial/debug.html#safe_mode">safe
96    mode</a> was set. This problem has been fixed now.
97  </li>
98  <li>Maintenance fixes.</li>
99</ul>
100</p>
101
102<h2><a name="boost_1_33">Boost 1.33 release</a></h2>
103
104<p>
105<ul>
106  <li>Added <a href="tutorial/indices.html#hashed_indices">hashed indices</a>,
107    whose interface is based on the specification for unordered associative
108    containers by the C++ Standard Library Technical Report (TR1).
109  </li>
110  <li>Added <a href="tutorial/creation.html#serialization">serialization support</a>
111    for <a href="../../serialization/index.html">Boost.Serialization</a>.
112  </li>
113  <li>Destruction of <code>multi_index_container</code>s and <code>clear</code>
114    memfuns now perform faster.
115  </li>
116  <li>Internal changes aimed at reducing the length of symbol names generated
117    by the compiler; cuts of up to a 50% can be achieved with respect to the
118    Boost 1.32 release. This results in much shorter and more readable error
119    messages and has also a beneficial impact on compilers with strict limits on
120    symbol name lengths. Additionally, a section on further
121    <a href="compiler_specifics.html#symbol_reduction">reduction of symbol name
122    lengths</a> has been added.
123  </li>
124  <li>Restructured some parts of the documentation, new examples.</li>
125  <li>Maintenance fixes.</li>
126</ul>
127</p>
128
129<hr>
130
131<div class="prev_link"><a href="future_work.html"><img src="prev.gif" alt="future work" border="0"><br>
132Future work
133</a></div>
134<div class="up_link"><a href="index.html"><img src="up.gif" alt="index" border="0"><br>
135Index
136</a></div>
137<div class="next_link"><a href="acknowledgements.html"><img src="next.gif" alt="acknowledgements" border="0"><br>
138Acknowledgements
139</a></div><br clear="all" style="clear: all;">
140
141<br>
142
143<p>Revised February 6th 2006</p>
144
145<p>&copy; Copyright 2003-2006 Joaqu&iacute;n M L&oacute;pez Mu&ntilde;oz.
146Distributed under the Boost Software
147License, Version 1.0. (See accompanying file <a href="../../../LICENSE_1_0.txt">
148LICENSE_1_0.txt</a> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
149http://www.boost.org/LICENSE_1_0.txt</a>)
150</p>
151
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