unordered/doc/changes.qbk

[/ Copyright 2008 Daniel James.
 / Distributed under the Boost Software License, Version 1.0. (See accompanying
 / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) ]

[section:changes Change Log]

[h2 Review Version]

Initial review version, for the review conducted from 7th December 2007 to
16th December 2007.

[h2 1.35.0 Add-on - 31st March 2008]

Unofficial release uploaded to vault, to be used with Boost 1.35.0. Incorporated
many of the suggestions from the review.

* Improved portability thanks to Boost regression testing.
* Fix lots of typos, and clearer text in the documentation.
* Fix floating point to `std::size_t` conversion when calculating sizes from
  the max load factor, and use `double` in the calculation for greater accuracy.
* Fix some errors in the examples.

[h2 Boost 1.36.0]

First official release.

* Rearrange the internals.
* Move semantics - full support when rvalue references are available, emulated
  using a cut down version of the Adobe move library when they are not.
* Emplace support when rvalue references and variadic template are available.
* More efficient node allocation when rvalue references and variadic template
  are available.
* Added equality operators.

[h2 Boost 1.37.0]

* Rename overload of `emplace` with hint, to `emplace_hint` as specified in
  [@http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2008/n2691.pdf n2691].
* Provide forwarding headers at `<boost/unordered/unordered_map_fwd.hpp>` and
  `<boost/unordered/unordered_set_fwd.hpp>`.
* Move all the implementation inside `boost/unordered`, to assist
  modularization and hopefully make it easier to track changes in subversion.

[h2 Boost 1.38.0]

* Use [@boost:/libs/utility/swap.html `boost::swap`].
* [@https://svn.boost.org/trac/boost/ticket/2237 Ticket 2237]:
  Document that the equality and inequality operators are undefined for two
  objects if their equality predicates aren't equivalent. Thanks to Daniel
  Krügler.
* [@https://svn.boost.org/trac/boost/ticket/1710 Ticket 1710]: 
  Use a larger prime number list. Thanks to Thorsten Ottosen and Hervé
  Brönnimann.
* Use
  [@boost:/libs/type_traits/doc/html/boost_typetraits/category/alignment.html
  aligned storage] to store the types. This changes the way the allocator is
  used to construct nodes. It used to construct the node with two calls to
  the allocator's `construct` method - once for the pointers and once for the
  value. It now constructs the node with a single call to construct and
  then constructs the value using in place construction.
* Add support for C++0x initializer lists where they're available (currently
  only g++ 4.4 in C++0x mode).

[h2 Boost 1.39.0]

* [@https://svn.boost.org/trac/boost/ticket/2756 Ticket 2756]: Avoid a warning
  on Visual C++ 2009.
* Some other minor internal changes to the implementation, tests and
  documentation.
* Avoid an unnecessary copy in `operator[]`.

[endsect]