Boost History

Version 1.48.0

Tue, 15 Nov 2011 10:47:30 -0500

New Libraries

Container: Standard library containers and extensions, from Ion Gaztañaga.
Locale: Provide localization and Unicode handling tools for C++, from Artyom Beilis.
Move: Portable move semantics for C++03 and C++11 compilers, from Ion Gaztañaga.

Updated Libraries

Asio:
- Implemented various performance improvements, including:
  - Using thread-local operation queues in single-threaded use cases (i.e. when concurrency_hint is 1) to eliminate a lock/unlock pair.
  - Allowing some epoll_reactor speculative operations to be performed without holding the lock.
  - Improving locality of reference by performing an epoll_reactor's I/O operation immediately before the corresponding handler is called. Also improves scalability across CPUs.
  - Specialising asynchronous read and write operations for buffer sequences that are arrays (boost::array or std::array) of exactly two buffers.
- Fixed compile error in regex overload of async_read_until (#5688).
- Fixed Windows-specific compile error by explicitly specifying the signal() function from the global namespace (#5722).
- Changed deadline_timer implementation to not read clock unless the timer heap is non-empty.
- Changed SSL buffer sizes to be large enough to hold a complete TLS record (#5854).
- Fixed synchronous null_buffers operations so that they obey the user's non-blocking setting (#5756).
- Changed to set fd_set size at runtime when using Windows.
- Disabled MSVC warning due to const qualifier being applied to function type.
- Fixed crash that occurs when using Intel C++ compiler (#5763).
- Changed OpenSSL initialisation to support all available algorithms.
- Fixed SSL error mapping when session is gracefully shut down.
- Added some latency test programs.
- Clarified that a read operation ends when the buffer is full (#5999).
- Fixed exception safety issue in epoll_reactor initialisation (#6006).
- Made number of strand implementations configurable via BOOST_ASIO_STRAND_IMPLEMENTATIONS macro.
- Added support for BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION flag which switches strand allocation to use a round-robin approach rather than hashing.
- Fixed potential strand starvation issue that can occur when strand.post() is used.
Chrono:
- #5979 Added chrono rounding utilities as defined by Howard Hinnant here.
- #5978 Add BOOST_CHRONO_HAS_PROCESS_CLOCKS to know if process clocks are available.
- #5998 Make possible to disable hybrid error handling.
- #5906 Take in account the constexpr as defined in the standard.
- #5907 Take in account noexcept for compilers supporting it.
- Fixed some bugs.
- See the History for more details.
Config:
- Add BOOST_NO_DECLTYPE_N3276 config macro. (See N3276.)
Fusion:
- Make single_view a random access fusion sequence.
- Remove bogus compile-time asserts from fusion::distance.
- Cleaner implementation of segmented Fusion.
Geometry:
- Bugfixes:
  - Robustness issue, in some circumstances the union failed to output. Fixed.
  - Robustness issue, in some circumstances the calculated intersection point was outside the segment. Fixed.
  - Concept issue, cartesian intersect didn't understand segments other than the provided one. Fixed.
  - Sometimes self-intersections in linestrings were missed. Fixed.
  - The fusion coordinate system was not registered correctly. Fixed.
- Solved tickets:
  - #5726 (Segment intersection algorithm still assumes 'first', 'second' members)
  - #5744 (mistake fusion adapt example)
  - #5748 (need include <boost/foreach.hpp>)
  - #5954 (distance_pythagoras skips sqrt() step)
- Improvements on algorithms:
  - Checking self-intersections is now not done automatically, this can blast performance.
  - Besides that, checking self-intersections is made faster.
  - Intersections now avoid outputting duplicate points. So they output the minimal set.
- Additional algorithms:
  - covered_by: within is defined as "within, not on boundary". covered_by is "within or on boundary"
- Additional functionality:
  - within: strategies can now be specified for within<point, box> and within<box, box>
  - convert: a much broader range of conversions is supported
  - assign: idem, (currently partly) synonym for convert (but reversed arguments)
- Additional coordinate types:
  - Basic support for Boost.Rational
Graph:
- Fixed bugs #5185, #5506, #5813 and #5919.
- Various other bug fixes not in Trac.
- Changed edge_descriptor type for reverse_graph to a new data type to avoid ambiguities with the edge_descriptor of the underlying graph.
Interprocess:
- Fixed bugs #2796, #4031, #4251, #4452, #4895, #5077, #5120, #5123, #5230, #5197, #5287, #5294, #5306, #5308, #5392, #5409,
- Added support to customize offset_ptr and allow creating custom managed segments that might be shared between 32 and 64 bit processes.
- Shared memory in windows has again filesystem lifetime: kernel bootstamp and WMI use to get a reliable timestamp was causing a lot of trouble.
Intrusive:
- Fixed bugs #4797, #5165, #5183, #5191.
Lexical cast:
- Added code to work with Inf and NaN values on any platform (#5689).
- New Quickbook documentation (#5723).
- Better performance and less memory usage for many combinations of Source and Target types.
- Better performance for C locale.
Math:
- Added new series evaluation methods to the cyclic Bessel I, J, K and Y functions. Also taken great care to avoid spurious over and underflow of these functions. Fixes issue #5560.
- Added an example of using Inverse Chi-Squared distribution for Bayesian statistics, provided by Thomas Mang.
- Added tests to use improved version of lexical_cast which handles C99 nonfinites without using global facets.
- Corrected wrong out-of-bound uniform distribution CDF complement values #5733.
- Enabled long double support on OpenBSD (issue #6014).
- Changed nextafter and related functions to behave in the same way as other implementations - so that nextafter(+INF, 0) is a finite value (issue #5832).
- Changed tuple include configuration to fix issue when using in conjunction with Boost.Tr1 (issue #5934).
- Changed class eps_tolerance to behave correctly when both ends of the range are zero (issue #6001).
- Fixed missing include guards on prime.hpp (issue #5927).
- Removed unused/undocumented constants from constants.hpp (issue #5982).
- Fixed missing std:: prefix in nonfinite_num_facets.hpp (issue #5914).
- Minor patches for Cray compiler compatibility.
MSM:
- eUML: added easier event reprocessing: process(event_) and reprocess()
- Rewrite of internal transition tables. There were a few bugs (failing recursivity in internal transition tables of sub-sub machines) and a missing feature (unused internal transition table of the main state machine).
- Bugfixes
  - Reverted favor_compile_time policy to Boost 1.46 state
  - none event now is convertible from any other event
  - eUML and pseudo exit states
  - Fixed not working Flag_AND
  - Fixed rare bugs causing multiple processing of the same event in a submachine whose transition table contains this event and a base event of it.
  - gcc warnings about unused variables
- Breaking change: the new internal transition table feature causes a minor breaking change. In a submachine, the "Fsm" template parameter for guards / actions of an internal table declared using internal_transition_table now is the submachine, not the higher-level state machine. Internal transitions declared using internal rows in the higher-level state machine keep their behavior (the "Fsm" parameter is the higher-level state machine). To sum up, the internal transition "Fsm" parameter is the closest state machine containing this transition.
Numeric.Conversion:
- Added numeric_cast_traits; see 'numeric_cast_traits' for details.
Proto:
- Breaking Change: Reduce numbers of operator overloads by using rvalue references on compilers that support them. Any user code that defines additional operator overloads on Proto expressions could potentially be rendered ambiguous by this change. The solution is to use a grammar to disable Proto's operators that are made ambiguous by any user-defined operators.
- Move definitions of Proto tag types into an ADL-blocking namespace.
- Add second template parameter to proto::siwtch_ to control dispatching to cases.
- Allow dependent domains to be specified with BOOST_PROTO_EXTENDS and BOOST_PROTO_BASIC_EXTENDS.
Regex:
- Fixed issues: #698, #5835, #5958, #5736.
Spirit:
- Spirit V2.5.1, see the 'What's New' section for details.
TypeTraits:
- Extension to support operator detection.
Unordered:
- Improved support for the C++11 standard - breaking change to equality and emplace.
- Use Boost.Move to implement move semantics.
- See the change log for full details.
Wave:
- See the Changelog for details.

Compilers Tested

Boost's primary test compilers are:

Linux:
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.5.1, 4.5.2, 4.6
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- Intel 11.1
OS X:
- Intel 11.1
- GCC: 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 8.0, 9.0, 10.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.4, 4.6.1
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.
QNX:
- QCC 4.4.2
- QCC, C++0x mode: 4.4.2, 4.6.1

Boost's additional test compilers include:

Linux:
- Clang from subversion, with libc++ and GNU libstdc++
- LLVM Clang 2.8 x
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.4, 4.5.2, 4.5.4, 4.6.1, 4.6.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.4.4, 4.5.2
- pgCC: 11.2 x
- Intel: 10.1, 11.1, 12.0
- PathScale: 4.0.8
- Visual Age 10.1
OS X:
- Clang from subversion, with libc++ and GNU libstdc++.
- Intel 11.1.
- GCC: 4.2.1, 4.4.4.
- GCC, C++0x mode: 4.4.4.
Windows:
- Visual C++ 8.0, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.4.7, 4.5.2, 4.5.4, 4.6.1
- GCC, C++0x mode, mingw: 4.5.2
- GCC, mingw 64-bit: 4.7.0
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.
Solaris:
- Sun 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.47.0

Mon, 11 Jul 2011 18:19:33 -0400

New Libraries

Chrono: Useful time utilities, from Vicente J. Botet Escribá.
Geometry: Geometry Library, from Barend Gehrels, Bruno Lalande and Mateusz Loskot.
Phoenix: Define small unnamed function objects at the actual call site, and more, from Joel de Guzman, Dan Marsden and Thomas Heller.
Ratio: Compile time rational arithmetic, from Vicente J. Botet Escribá.

Updated Libraries

Accumulators:
- New statistical accumulators: sum_kahan, sum_of_weights_kahan, sum_of_variates_kahan.
Asio:
- Many new features and improvements:
  - Signal handling.
  - A debugging aid for asynchronous programs.
  - Timeouts on socket iostreams.
  - Composed connect operations.
  - Rewritten SSL implementation.
  - C++0x move support.
  - Compatibility with POSIX fork().
  - ... and much more. See the Revision History in the Boost.Asio documentation for more details.
- Tickets addressed: #2879, #3238, #3297, #3307, #3702, #3741, #3900, #3905, #3939, #3958, #4162, #4971, #5124, #5128, #5418, #5453.
Config:
- Fixed bug #1988
DateTime:
- Fixed bugs #4920, #3651, #4845, #4475, #4952, #5345, #5250, #4798, #4754, #4411, #5126, #4780, #2475, #1674.
Dynamic Bitset:
- Fixed bug #5439
Foreach:
- Use rvalue refs on supporting compilers for const rvalue detection.
Function:
- Bug fixes: #3410, #3618, #3912, #4073, #4325, #4717, #4765.
Function Types:
- Bug fixes: #1653, #3162.
Graph:
- Bug fixes.
- Remove deprecated function kolmogorov_max_flow, use boykov_kolmogorov_max_flow instead.
- Removed <boost/graph/detail/is_same.hpp> header since its functionality is in Boost.Type_Traits.
Iostreams:
- Support filesystem v3 paths (#4485).
- Fix a memory leak in chain (#4922).
Iterator:
- Add function_input_iterator (#2893).
- Bug fixes: #1427, #1517, #3434.
Lexical cast:
- Better performance and less memory usage for many combinations of Source and Target types (#5564, #5417, #4397, #5350, #5576).
- Documentation updated (#5576, #5494).
Logic:
- Bug fixes: #3093, #3600.
Math:
- Added changesign function to sign.hpp to facilitate addition of nonfinite facets.
- Addition of nonfinite facets from Johan Rade, with tests, examples of use for C99 format infinity and NaN, and documentation.
- Added tests and documentation of changesign from Johan Rade.
Meta State Machine:
- Added a stop() method in the back-end.
- Added partial support for Boost.Phoenix functors in eUML.
- Added the possibility to choose when state switching occurs.
- Bugfixes:
  - #5117, #5253, #5533, #5573.
  - gcc warnings about unused variables.
  - better implementation of favor_compile_time back-end policy.
  - bug with eUML and state construction.
  - incorrect eUML event and state macros.
  - incorrect event type passed to a direct entry state's on_entry action.
  - more examples.
MultiIndex:
- Fixed an ADL problem in composite_key_compare related with Boost.Ref.
- Maintenance fixes.
Proto:
- Pre-preprocessed for better compile times.
- Default preprocessor limits raised:
  - Max expression arity (BOOST_PROTO_MAX_ARITY) bumped from 5 to 10.
  - Max function call arity (BOOST_PROTO_MAX_FUNCTION_CALL_ARITY) bumped from 5 to 10.
  - Max logical operator arity (BOOST_PROTO_MAX_LOGICAL_ARITY) bumped from 8 to 10.
- Better integration of proto::basic_expr to avoid accidental needless instantiations of proto::expr.
Random:
- Synchronized with the new standard.
  - Many new distributions added: chi_squared_distribution, negative_binomial_distribution, fisher_f_distribution, student_t_distribution, weibull_distribution, extreme_value_distribution, discrete_distribution, piecewise_constant_distribution, piecewise_liear_distribution
  - Renamed uniform_int and uniform_real to uniform_int_distribution and uniform_real_distribution.
  - Added members to all distributions: param_type, param, stream operators, comparison operators, min and max.
  - Allow distributions to be used directly with generators without use of variate_generator.
  - Changed the meaning of the parameters of geometric_distribution and lognormal_distribution.
  - Added a second parameter to gamma_distribution.
  - Added seed_seq and added the corresponding constructors and seed overloads the generators.
  - Added generate_canonical.
  - Renamed the engine tempates. e.g. mersenne_twister becomes mersenne_twister_engine.
  - New engine adapter independent_bits_engine.
  - Added new predefined engine typedefs: mt19937_64, ranlux[24|48][_base], knuth_b.
  - Updated seeding algorithms.
  - Added discard
  - Use unsigned types instead of signed types in all the predefined engines.
- Bug fixes:
  - linear_congruential_engine could assert because the modular arithmetic was not implemented in all cases. shuffle_output, now called shuffle_order_engine, could cause integer overflow. These cases were not triggered by any predefined engines.
  - uniform_small_int now actually behaves as documented.
- New efficient algorithms for binomial_distribution and poisson_distribution.
- Moved all features into namespace boost::random
- Backwards compatibility issues:
  - The seeding algorithms have changed. This was unavoidable for compatibility with the standard. Not to mention that some of the existing algorithms were weird and inconsistent.
    
    Seeding with an integer: The behaviour should be unchanged for most generators except lagged_fibonacci and subtract_with_carry (and thus ranlux).
    
    Seeding a generator with another generator: This has been enabled by making all all generators models of SeedSeq. Therefore, if you seed a Boost.Random generator with a non Boost.Random generator, your code will no longer compile. The algorithm has changed, so code using this seeding method will yield different values.
    
    Seeding a generator from a pair of iterators: This implicitly assumed that the elements were 32-bit integers in some places, but not everywhere. I've added this requirement everywhere and updated the algorithms accordingly. The behaviour of generators with a value_type no more than 32 bits should be unchanged.
  - Renaming:
    
    Whenever a class was renamed, there is a wrapper with the old name. There are also using declarations in namespace boost for everything that was moved.
    
    The names of a few accessors in the distributions changed. Both the old and the new names are allowed.
  - geometric_distribution and lognormal_distribution: The behaviour is different at runtime. boost::geometric_distribution and boost::lognormal_distribution provide the old behaviour, boost::random::geometric_distribution and boost::random::lognormal_distribution provide the new behaviour.
  - Streaming: gamma_distribution has a new parameter, thus text saved with the old version will not readable by the new version.
  - variate_generator is now a simple pass through wrapper. Code that assumes that it will adjust the generator's result type to match the distribution will no longer work. This is not an issue with any of the distributions provided by Boost.Random.
  - Return types: The result_types of some generators have changed slightly. Some signed types have changed to unsigned to match the standard.
  - has_fixed_range: This is now always false, as it doesn't appear to be very useful and is excessively cumbersome. Anything that was accessing const_min and const_max without first checking has_fixed_range was incorrect to begin with.
Range:
- Fixed the end position irange when step size is greater than 1 (#5544).
Spirit:
- Spirit V2.5, see the 'What's New' section for details.
Tokenizer:
- Fixed bug #4649.
Utility:
- Bug fixes: #4432.
Uuid:
- Fixed tickets: (#5570, #4601, #4991, #5145, #5235).
Wave:
- Wave V2.3.0, see the Changelog for details.

Build System

The official name of Boost.Build executable was changed to b2. The bootstrap scripts create a copy with the old name bjam to prevent third-party build scripts from failing.

Updated Tools

BoostBook:
- Handle doxygen tags: \see, tparam, ref (for classes only).
- Support note for classes as well as functions.
Quickbook:
- Generate consistent ids for headings.
- Improved unicode support for windows.
- Warn about windows paths, as they aren't portable.
- Reverse deprecation of [br].
- Support date ranges and comma seperated clauses in copyright attributes.
- Improved delimeter checking for simple markup (e.g. *bold*).
- Pass-thru comments in code snippets.
- __FILENAME__ macro now generates relative paths.
- Allow quickbook escapes inside comments in syntax highlighted code.

Compilers Tested

Boost's primary test compilers are:

Linux:
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.3.5, 4.4.1, 4.4.3, 4.4.5, 4.5.1, 4.5.2, 4.6.0, 4.6.1
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- Intel 12.0
OS X:
- Apple Clang 2.1
- Intel 11.1
- GCC: 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 7.1, 9.0, 10.0
- GCC, mingw: 4.4.0
FreeBSD:
- GCC 4.2.1, 64 bit
QNX:
- QCC

Boost's additional test compilers include:

Linux:
- Clang from subversion, with GNU libstdc++.
- LLVM Clang 2.8
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.3.5, 4.4.3, 4.4.5, 4.5.1, 4.5.2, 4.6.0, 4.6.1
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- pgCC: 11.2
- Intel: 10.1, 11.0, 11.1, 12.0
- PathScale: 3.2
OS X:
- Clang from subversion, with GNU libstdc++.
- Intel 11.1
- GCC: 4.4.4
- GCC, C++0x mode: 4.4.4
Windows:
- Visual C++ 7.1, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.5.2
- GCC, C++0x mode, mingw: 4.5.2
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.46.1

Sat, 12 Mar 2011 10:45:53 -0500

Updated Libraries

Asio:
- EV_ONESHOT seems to cause problems on some versions of Mac OS X, with the io_service destructor getting stuck inside the close() system call. Changed the kqueue backend to use EV_CLEAR instead (#5021).
- Fixed compile failures with some versions of g++ due to the use of anonymous enums (#4883).
- Fixed a bug on kqueue-based platforms, where some system calls that repeatedly fail with EWOULDBLOCK are not correctly re-registered with kqueue.
- Changed asio::streambuf to ensure that its internal pointers are updated correctly after the data has been modified using std::streambuf member functions.
- Fixed a bug that prevented the linger socket option from working on platforms other than Windows.
Fusion:
- Fix disable_if for Visual C++ 7.1/8.0
Filesystem:
- Fix for STLPort (#5217).
- PGI large file support
Graph:
- Bug fixes, including fixes for: #5181, #5180, #5199 and #5175.
Icl:
- Intersects for interval_maps and segment_type/element_type (#5207).
- Fixed some ambiguous calls to functions in boost and std namespaces.
- Other bug fixes, and documentation fixes.
Math:
- Several minor bug fixes.
Polygon:
- Disabled 45-degree booleans optimization.
Proto:
- Make display_expr copyable (#5096).
- Fix const correctness problem in pass_through.
Property Tree:
- Fix compile error in JSON parser.
Signals2:
- Fix unused parameter warning.
TR1:
- Allow specialization of std::tr1::hash.
- Improved support for Pathscale and Sun compilers.
Unordered:
- Add missing copy constructors and assignment operators when using rvalue references (#5119).

Other changes

Update getting started guide to reflect changes to boost build.
In quickbook, workaround optimization bug in g++ 4.4.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.1, 4.4.3, 4.4.5, 4.5.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- Intel: 10.1, 11.0, 11.1
- Clang: 2.8
- Pathscale: 3.2
OS X:
- GCC: 4.0.1, 4.2.1, 4.4
- GCC, C++0x mode: 4.4.
- Intel: 11.1
Windows:
- Visual C++: 7.1, 8.0, 9.0 and 10.0.
- GCC, mingw: 4.4.0.
FreeBSD:
- GCC: 4.2.1, 64 bit.

Boost's additional test compilers include:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.4, 4.4.5, 4.5.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.2
- pgCC: 11.2
- Intel: 10.1, 11.0, 11.1
- PathScale: 3.2, 4.0.8
- Visual Age C++: 10.1
- Clang from subversion
OS X:
- Intel C++ Compiler: 10.1, 11.0, 11.1
- GCC: 4.0.1, 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
- Clang from subversion, with GNU libstdc++, libc++ and libc++ in C++0x mode.
Windows:
- Visual C++: 7.1, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.5.1
- GCC, mingw, C++0x mode: 4.5.1
- Borland: 6.1.3 (2009), 6.2.1 (2010)
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
Solaris:
- Sun C++: 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.46.0

Mon, 21 Feb 2011 15:36:13 -0500

New Libraries

Icl: Interval Container Library, interval sets and maps and aggregation of associated values, from Joachim Faulhaber.

Updated Libraries

Array:
- Added support for cbegin/cend (#4761)
- Fixed a problem with the Sun compiler (#4757)
Asio:
- Fixed an integer overflow problem that occurs when ip::address_v4::broadcast() is used on 64-bit platforms.
- Fixed a problem on older Linux kernels (where epoll is used without timerfd support) that prevents timely delivery of deadline_timer handlers, after the program has been running for some time (#5045).
Bind:
- make_adaptable now documented (#4532)
Concept Check:
- fixed warnings with self-assignment (#4918)
Filesystem:
- Version 3 of the library is now the default.
- IBM vacpp: Workaround for compiler bug affecting iterator_facade. (#4912)
- Verify, clarify, document that <boost/config/user.hpp> can be used to specify BOOST_FILESYSTEM_VERSION. (#4891)
- Replaced C-style assert with BOOST_ASSERT.
- Undeprecated unique_path(). Instead, add a note mentioning the workaround for lack of thread safety and possible change to cwd. unique_path() is just too convenient to deprecate!
- Cleared several GCC warnings.
- Changed V2 code to use BOOST_THROW_EXCEPTION.
- Windows: Fix status() to report non-symlink reparse point correctly.
- Add symlink_option to recursive_directory_iterator, allowing control over recursion into directory symlinks. Note that the default is changed to not recurse into directory symlinks.
- Reference documentation cleanup, including fixing missing and broken links, and adding missing functions.
- Miscellaneous implementation code cleanup.
Fusion:
- vector copy constructor now copies sequence members in the same order on different platforms (#2823)
Graph:
- Fixed Graphviz output to work on Visual C++ 7.1.
- Replaced assert with BOOST_ASSERT.
- Changed to Boost.Filesystem v3.
- Fixed the following bugs from Trac: #1021, #4556, #4631, #4642, #4715, #4731, #4737, #4753, #4758, #4793, #4843, #4851, #4852, #4887, #4914, #4966.
- Fixed various bugs not in Trac.
Hash:
- Support for std::type_index (#4756).
- Avoid -Wconversion warnings.
Iostreams:
- Use BOOST_ASSERT instead of assert.
- Fixed flush regression (#4590).
Iterator:
- fixed problem with implicit_cast (#3645)
Math:
- Added Wald, Inverse Gaussian and geometric distributions.
- Added information about configuration macros.
- Added support for mpreal as a real-numered type.
Meta State Machine:
- Compile-time state machine analysis.
- Boost.Parameter interface definition for msm::back::state_machine<> template arguments.
- Possibility to provide a container for the event and deferred event queues. A policy implementation based on a more efficient Boost.CircularBuffer is provided.
- msm::back::state_machine<>::is_flag_active method made const.
- Added possibility to enqueue events for delayed processing.
- Bugfixes
  - #4926.
  - stack overflow using the Defer functor
  - anonymous transition of a submachine not called for the initial state
Optional:
- Updated test results with information about expected failures (#2294)
Pool:
- Now can set a max_size for pool (#2696)
- boost/pool/pool.hpp uses reinterpret_cast instead of static_cast (#2941)
- boost::pool_allocator now works with vector of vectors (#386)
- Boost pool is now compatible with Microsoft memory leak detection (#4346)
Program Options:
- Fixed errors in examples in docs (#3992, #4858)
- Now takes argv as const (#3909)
Proto:
- Breaking change: boost/proto/core.hpp no longer defines functional::pop_front and functional::reverse, which have moved to their own headers under boost/proto/functional
- Add callable wrappers for more Fusion algorithms (including fusion::at); and callable wrappers for some std utilities like make_pair, first and second, all under the new boost/proto/functional directory
- Allow transforms to be specified separately from a grammar
- proto::matches preserves domain-specific expression wrappers
- Fix ADL issue with operator, in proto::and_ transform
- Fix handling of grammar checking in expressions involving multiple domains (#4675)
- Fix ambiguous operator<< in proto::display_expr (#4910)
- fusion::is_sequence answers true for Proto expressions (#5006)
- Eliminate -Wundef GCC warning in boost/proto/fusion.hpp (#5075)
Signals:
- gcc warning cleanup (#4365)
Spirit:
- Spirit V2.4.2, see the 'What's New' section for details.
Tokenizer:
- isspace/ispunct was called with wrong character type (#4791)
Unordered:
- Avoid using operator& with the value type.
- Avoid -Wconversion warnings.
Wave:
- See the Changelog for details.

Updated Tools

Boostbook:
- Better support for attributes on root elements - including lang.
Inspect:
- Check that Boost headers do not use C's assert macro.
Quickbook:
- Add support for lang attribute in documentation info.
- Improved anchors.
- Support import, include and xinclude in conditional phrases.
- Uses Filesystem 3.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.5, 4.5.2,
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0, 4.5.2
- Intel: 10.1, 11.0, 11.1
- Clang: 2.8
- Pathscale: 3.2.
OS X:
- GCC: 4.0.1, 4.2.1, 4.4
- GCC, C++0x mode: 4.4.
- Intel: 11.1
Windows:
- Visual C++: 7.1, 8.0, 9.0 and 10.0.
- GCC, mingw: 4.4.0.
FreeBSD:
- GCC: 4.2.1, 64 bit.

Boost's additional test compilers include:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.3.5, 4.4.3, 4.4.5, 4.5.0, 4.5.2
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0, 4.5.2
- pgCC 11.1
- Intel: 10.1, 11.0, 11.1
- PathScale: 3.2, 4.0
- Visual Age C++ 10.1
- Clang from subversion
OS X:
- Intel C++ Compiler: 10.1, 11.0, 11.1
- GCC: 4.0.1, 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
- Clang from subversion
Windows:
- Visual C++: 7.1, 8.0, 9.0, 10.0
- Visual C++ with STLport: 9.0
- Visual C++, Windows Mobile 5, with STLport: 9.0
- GCC, mingw: 4.4.0, 4.5.1, 4.6.0
- GCC, mingw, C++0x mode: 4.5.1
- Borland: 6.1.3 (2009), 6.2.1 (2010)
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0
FreeBSD:
- GCC 4.2.1, 64 bit
Solaris:
- Sun C++: 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.45.0

Fri, 19 Nov 2010 11:00:00 EST

Updated Libraries

Asio:
- Fixed a problem on kqueue-based platforms where a deadline_timer may never fire if the io_service is running in a background thread (#4568).
- Fixed a const-correctness issue that prevented valid uses of has_service<> from compiling (#4638).
- Fixed MinGW cross-compilation (#4491).
- Removed dependency on deprecated Boost.System functions (#4672).
- Ensured close()/closesocket() failures are correctly propagated (#4573).
- Added a check for errors returned by InitializeCriticalSectionAndSpinCount (#4574).
- Added support for hardware flow control on QNX (#4625).
- Always use pselect() on HP-UX, if it is available (#4578).
- Ensured handler arguments are passed as lvalues (#4744).
- Fixed Windows build when thread support is disabled (#4680).
- Fixed a Windows-specific problem where deadline_timer objects with expiry times set more than 5 minutes in the future may never expire (#4745).
- Fixed the resolver backend on BSD platforms so that an empty service name resolves to port number 0, as per the documentation (#4690).
- Fixed read operations so that they do not accept buffer sequences of type const_buffers_1 (#4746).
- Redefined Protocol and id to avoid clashing with Objective-C++ keywords (#4191).
- Fixed a vector reallocation performance issue that can occur when there are many active deadline_timer objects (#4780).
- Fixed the kqueue backend so that it compiles on NetBSD (#4662).
- Fixed the socket io_control() implementation on 64-bit Mac OS X and BSD platforms (#4782).
- Fixed a Windows-specific problem where failures from accept() are incorrectly treated as successes (#4859).
- Deprecated the separate compilation header <boost/asio/impl/src.cpp> in favour of <boost/asio/impl/src.hpp> (#4560).
Config:
- Added new defect macros, BOOST_NO_VARIADIC_MACROS and BOOST_NO_NUMERIC_LIMITS_LOWEST.
- Minor fixes (#4670, #4563, #4474, #4508).
Flyweight:
- Fixed a hanging problem with intermodule_holder in Win32 platforms related to a Boost.Interprocess issue described at ticket #4606.
- Removed an internal assertion incompatible with program termination via std::exit.
Foreach:
- Fix ambiguitiy by making auto_any constructor explicit.
Fusion:
- Added BOOST_FUSION_ADAPT_ADT, BOOST_FUSION_ADAPT_TPL_ADT, BOOST_FUSION_ADAPT_ASSOC_ADT and BOOST_FUSION_ADAPT_ASSOC_TPL_ADT.
Graph:
- Added Stoer-Wagner min-cut algorithm contributed by Daniel Trebbien.
- Added implicit graph (implicit_graph) and A* (astar_maze) examples contributed by W. P. McNeill.
- Added bundled property support for graph properties.
- Fixed bugs #4556, #4622, #4631, #4715, #4753, #4758 and #4793 plus others not in Trac.
- Fixed documentation bugs #4731 and #4737.
Interprocess:
- Fixed bugs #1080, #3284, #3439, #3448, #3582, #3682, #3829, #3846, #3914, #3947, #3950, #3951, #3985, #4010, #4417, #4019, #4039, #4218, #4230, #4250, #4297, #4350, #4352, #4426, #4516, #4524, #4557, #4606, #4685, #4694.
- Added support for standard rvalue reference move semantics (tested on GCC 4.5 and VC10).
- Permissions can be detailed for interprocess named resources.
- mapped_region::flush initiates disk flushing but does not guarantee it's completed when returns, since it is not portable.
- FreeBSD and MacOS now use posix semaphores to implement named semaphores and mutex.
Math:
- Added inverse gamma distribution and inverse chi_square and scaled inverse chi_square.
- Added warnings about potential ambiguity with std random library in distribution and function names.
- Editorial revision of documentation, and added FAQ.
Meta State Machine:
- Support for serialization.
- Possibility to use normal functors (from functor front-end) in eUML.
- New constructors where substates / submachines can be taken as arguments. This allows passing arguments to the constructor of a submachine.
- Bugfixes (anonymous transitions)
MultiArray:
- Fixes for bugs #3581, #3820, #3989, #4032, plus other bugs not in Trac.
- Added new examples and test cases.
Proto:
- Knock down value of proto::N, fixes bug #4602,
- Support non-rtti compilers
- Fix bug with proto::matches, array types and the wildcard pattern.
- Make Proto work on MSVC with the /clr option
- Add const-qualified overloads of proto::eval
Spirit: Spirit V2.4.1, see the 'What's New' section for details.
TypeTraits:
- Added new traits add_rvalue_reference, add_lvalue_reference and common_type.
- Minor fixes to is_signed, is_unsigned and is_virtual_base_of.
uBLAS:
- Tickets closed:
  - #4410,
  - #3397,
  - #795,
  - #3514,
- Mixed types operation are possible and new tests added (like matrix<complex>+matrix<double>),
- New features:
  - a new size<> operator is available. For example size<1>(A+B) give the number of rows of the sum of matrices A and B,
Unordered:
- Fix inserting from iterators which return by copy from operator* in boost::unordered_map and boost::unordered_set.
Wave:
- See the Changelog for details.
Xpressive:
- xpressive::as handles wide-char sub_match objects, fixes bug #4496

Updated Tools

Boostbook:
- Fix syntax highlighter for comments at the end of code blocks.
Quickbook:
- Fix command line macros.
- Nested code snippets.
- Nested documentation info comments.
- Revert xml escaping document info, it broke some documentation files (will now be in 1.6).
- Some other small tweaks. See the change log for more info.

Compilers Tested

Boost's primary test compilers are:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.5, 4.5.1.
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0.
- Intel: 10.1, 11.0, 11.1
- Pathscale: 3.2.
OS X:
- GCC: 4.0.1, 4.2.1, 4.4
- GCC, C++0x mode: 4.4.
- Intel: 11.1
Windows:
- Visual C++: 7.1, 8.0, 9.0 and 10.0.
- GCC, mingw: 4.3.3.
FreeBSD:
- GCC: 4.2.1, 32 bit.
- GCC: 4.2.1, 64 bit.

Boost's additional test compilers include:

Linux:
- GCC: 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.4.5, 4.5.0, 4.6.0 (dev version).
- GCC, C++0x mode: 4.3.4, 4.4.3, 4.5.0.
- Intel: 10.1, 11.0, 11.1.
- pgCC 10.1.
- PathScale: 3.2.
- Clang from subversion.
OS X:
- Intel C++ Compiler: 10.1, 11.0, 11.1.
- GCC: 4.0.1, 4.2.1, 4.4.4
- GCC, C++0x mode: 4.4.4
- Clang from subversion.
Windows:
- Borland: 5.9.3, 6.1.3 (2009), 6.2.1 (2010), 6.3.0
- GCC, mingw: 4.3.3, 4.4.5, 4.5.1
- GCC, mingw, C++0x mode: 4.5.1
- Visual C++: 7.1, 8.0, 9.0, 10.0
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0.
FreeBSD:
- GCC 4.2.1, 64 bit.
Solaris:
- Sun C++: 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.44.0

Fri, 13 Aug 2010 13:00:00 EDT

New Libraries

Meta State Machine: High-performance expressive UML2 finite state machines, from Christophe Henry
Polygon: Booleans/clipping, resizing/offsetting and more for planar polygons with integral coordinates, from Lucanus Simonson.

Updated Libraries

Accumulators:
- Correct miscellaneous documentation inaccuracies
Asio:
- Reduced compile times. (Note that some programs may need to add additional #includes, e.g. if the program uses boost::array but does not explicitly include <boost/array.hpp>.)
- Reduced the size of generated code.
- Refactored deadline_timer implementation to improve performance.
- Improved multiprocessor scalability on Windows by using a dedicated hidden thread to wait for timers.
- Improved performance of asio::streambuf with async_read() and async_read_until(). These read operations now use the existing capacity of the streambuf when reading, rather than limiting the read to 512 bytes.
- Added optional separate compilation. To enable, add #include <boost/asio/impl/src.cpp> to one source file in a program, then build the program with BOOST_ASIO_SEPARATE_COMPILATION defined in the project/compiler settings. Alternatively, BOOST_ASIO_DYN_LINK may be defined to build a separately-compiled Asio as part of a shared library.
- Added new macro BOOST_ASIO_DISABLE_FENCED_BLOCK to permit the disabling of memory fences around completion handlers, even if thread support is enabled.
- Reworked timeout examples to better illustrate typical use cases.
- Ensured that handler arguments are passed as const types.
- Fixed incorrect parameter order in null_buffers variant of async_send_to (#4170).
- Ensured unsigned char is used with isdigit in getaddrinfo emulation (#4201).
- Fixed handling of very small but non-zero timeouts (#4205).
- Fixed crash that occurred when an empty buffer sequence was passed to a composed read or write operation.
- Added missing operator+ overload in buffers_iterator (#4382).
- Implemented cancellation of null_buffers operations on Windows.
Config:
- Added new defect macro, BOOST_NO_COMPLETE_VALUE_INITIALIZATION.
- Added new defect macro BOOST_NO_0X_HDR_TYPEINDEX, fixes issue #4274.
- Added support for code visibility in GCC.
- Fixed issues #4385, #4324, #4221, #4182, #4178, #4152, #4115. #4112, #4059, #4041, #4012.
Filesystem:
- This release contains both version 2 and version 3 of the library. Version 3 is a major upgrade that will break some existing user code, so version 2 is the default. Users are encouraged to migrate to version 3. See 'Version 2' and 'Version 3' for more information.
- Fix problems with symbol visibility for shared libraries.
- Fix various minor problems.
- Fixed issues: #3863, #4248.
Foreach:
- Add boost/foreach_fwd.hpp for forward declarations of foreach's customization points, fixes #3998.
- Remove out-of-date work-arounds for sun compilers, fixes #4306.
Fusion:
- Added fusion::reverse_fold, fusion::iter_fold and fusion::reverse_iter_fold (#1623).
Hash:
- Option to prevent implicit casts when calling the hash function by defining the macro BOOST_HASH_NO_IMPLICIT_CASTS, which can avoid some subtle problems. This might be activated by default in a future version.
Iostreams:
- Several fixes for file descriptors class, including a breaking change to the constructors and open methods for file_descriptor, file_descriptor_source and file_descriptor_sink. See the documentation for details. The old methods are still available if you define BOOST_IOSTREAMS_USE_DEPRECATED (#3323, #3517, #4335).
- Fix several issues with compression and decompression (#2318, #4091, #3348, #2783, #1579, #3853).
- And a load more miscellaneous fixes (#3851, #3279, #3689, #2356, #2996, #4102, #2998, #1612, #2325).
- Thanks to Steven Watanabe for almost all these fixes. For more detail see the release notes.
Math:
- Fixed incorrect range and support for Rayleigh distribution.
MPL:
- Make mpl::string work with mpl::transform.
Multi-index Containers:
- Fixed a bug preventing the use of modify_key with rollback in ordered and hashed indices when Modifier and Rollback are different types (ticket #4130).
Proto:
- Minor change in behavior: when using proto::and_ as a transform, apply all transforms but only return the result of applying the last. See Proto's Release Notes for details.
- Minor change in behavior: proto::as_expr and proto::as_child no longer run objects that are already proto expressions through the expression domain's generator. See Proto's Release Notes for details.
- Minor change in behavior: Proto uses proto::basic_expr instead of proto::expr when possible for better compile times. See Proto's Release Notes for details.
- Add support for sub-domains.
- Introduce per-domain as_expr and as_child customization points to allow for domain-specific customization of variable capture behavior.
- The proto::_default transform is also a grammar that matches the expressions the transform knows how to handle.
- Add proto::_void, a no-op primitive transform that does nothing and returns void.
- The proto::pass_through transform doesn't strip expression wrappers, fixes #4175.
- Const-correctness fixes when invoking proto domains.
Regex:
- Fixed issues: #4309, #4215, #4212, #4191, #4132, #4123, #4114, #4036, #4020, #3941, #3902, #3890.
Spirit: Spirit V2.4, see the 'What's New' section for details.
System:
- Change system_category and generic_category to functions, to conform to the C++0x FCD. This change may cause compile errors some user code; the fix is add "()" to references to system_category and generic_category, so that they become function calls.
- Fix problems with symbol visibility for shared libraries.
- Fixed issues: #4254, #3994, #3474.
Thread:
- Fixes for miscellaneous trac issues (#2501, #4341, #4363, #3760, #3761, #3611, #2955, #4071, #3195, #3097, #2874, #4316, #4317, #4322, #3244, #2747, #4305, #3195, #2704, #2293, #868, #2918, #4238, #3269, #3178, #3195).
- Fixes for other miscellaneous issues (remove warnings, support newer compilers, etc.)
TR1:
- Fixed VC10 support.
- std::tr1::result_of always uses the TR1 ResultOf protocol, even on compilers that support the C++0x decltype-based implementation.
Type Traits:
- Added support for rvalue references throughout the library, plus two new traits classes is_rvalue_reference and is_lvalue_reference. Fixes #4407 and #3804.
- Fixed ticket #3621.
uBLAS:
- New assignment operators to feed in vectors and matrices in many nice ways (#4034). Thank you Nasos
- New doxygen-based documentation
- Enable arithmetic operators (+,-,*,/) to work between ublas containers of std::complex and integral types (#3649). Thank you Neal
- Removed unused variables in functional.hpp (#4377). Thank you Marco
- New matrix_indirect and vector_indirect views to access elements with a matrix or vector of indices
Utility:
- Added a new template class, boost::initialized<T>, in order to fix #3472.
- New version of value_initialized<T> no longer calls memset when the compiler has implemented value-initialization completely (#3869).
- New template boost::tr1_result_of that implements the TR1 ResultOf protocol even if boost::result_of uses the C++0x decltype-based implementation.
Uuid:
- Define BOOST_UUID_NO_TYPE_TRAITS to remove the dependency on Boost.TypeTraits.
- Stream operator<< handles left, internal, and right manipulators.
- Added to_string, to_wstring to convert a uuid to a string.
- Fixed minor bugs in documentation.
Wave: See the Changelog for details.
Xpressive:
- Replace non-portable using declarations with typedefs in nested_results.
- Support user-defined assertions with placeholders for non-local variables.

Updated tools

Boostbook:
- Significantly faster.
- Improved syntax highlighter.
Quickbook:
- Use the cygwin 1.7 API for better path handling.
- Improved boostbook generation.
- Tweak the grammar to clean up some edge cases.
- For more detail see the change log.

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Leopard.
Linux:
- GCC 4.4 on 64-bit Suse.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1, 9.0 SP1 and 10.0.
- GCC 4.3.3, using Mingw.
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.

Boost's additional test compilers include:

Linux:
- Intel 10.1 on 32 bit Red Hat Enterprise Linux.
- Intel 10.1, 11.0, 11.1 on 64 bit Red Hat Enterprise Linux.
- GCC 3.4.6, 4.2.4, 4.3.4, 4.4.3, 4.5 on Red Hat Enterprise Linux.
- GCC, with C++0x extensions, 4.3.4, 4.4.3, 4.5 on Red Hat Enterprise Linux.
- GCC 4.4 on 64 bit Suse.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
- Clang from subversion (will be released with LLVM 2.8).
OS X:
- Intel C++ Compiler 10.1, 11.0, 11.1 on Leopard.
- GCC 4.0.1, 4.2.1 (Apple build).
- GCC 4.4
- GCC, with C++0x extensions, 4.4
- Clang from subversion (will be released with LLVM 2.8).
Windows:
- Visual C++ 7.1 SP, 8.0, 9.0 on 32-bit XP.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 on XP.
- Visual C++ 10.0 on 64-bit Windows 7.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.1 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.3.3, 4.5 on Mingw.
- GCC, with C++0x extensions, 4.5 on Mingw.
AIX:
- IBM XL C/C++ Enterprise Edition, V11.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.2, 64 bit.
- GCC 4.2.1 on FreeBSD 8.0, 32 bit.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Thanks to Marshall Clow for organizing the bug sprint and to everyone who took part.

Version 1.43.0

Thu 6 May 2010 12:00:00 GMT

New Libraries

Functional/factory: Function objects for dynamic and by-value construction, from Tobias Schwinger.
Functional/forward: Function object adapters to address the forwarding problem, from Tobias Schwinger.

Major Updates

Range: Boost.Range has undergone extensive updates that it include all of the features from the recently reviewed Boost.RangeEx, from Neil Groves.
- Range-based version of the full STL iterator based algorithms.
- Range adaptors which can be combined with range-based algorithms for unprecedented expressiveness and efficiency.
- New functions: irange, istream_range, join, combine.

Updated Libraries

Accumulators:
- Avoid premature template evaluation in operator overload return types.
Array:
- Added support for SunCC compiler.
- Added 'fill' member function.
- Changed exception code to use boost::throw_exception.
Asio:
- Improved performance.
- Reduced compile times.
- Reduced the size of generated code.
- Extended the guarantee that background threads don't call user code to all asynchronous operations (#3923).
- Changed to use edge-triggered epoll on Linux.
- Changed to use timerfd for dispatching timers on Linux, when available.
- Changed to use one-shot notifications with kqueue on Mac OS X and BSD platforms.
- Added a bitmask type ip::resolver_query_base::flags as per the TR2 proposal. This type prevents implicit conversion from int to flags, allowing the compiler to catch cases where users incorrectly pass a numeric port number as the service name.
- Added #define NOMINMAX for all Windows compilers. Users can define BOOST_ASIO_NO_NOMINMAX to suppress this definition (#3901).
- Fixed a bug where 0-byte asynchronous reads were incorrectly passing an error::eof result to the completion handler (#4023).
- Changed the io_control() member functions to always call ioctl on the underlying descriptor when modifying blocking mode (#3307).
- Changed the resolver implementation to longer require the typedefs InternetProtocol::resolver_query and InternetProtocol::resolver_iterator, as neither typedef is part of the documented InternetProtocol requirements. The corresponding typedefs in the ip::tcp, ip::udp and ip::icmp classes have been deprecated.
- Fixed out-of-band handling for reactors not based on select().
- Added new BOOST_ASIO_DISABLE_THREADS macro that allows Asio's threading support to be independently disabled.
- Minor documentation improvements.
Fusion:
- Added new macros for adapting or defining custom types. See the Changelog for details.
Iostreams:
- Minor fixes (#2505, #3839, #3953, #3723, #3969, #4135).
Multi-index Containers:
- Serialization of non default constructible values is now properly supported through user-provided facilities save_construct_data and load_construct_data. multi_index_container serialization class version has been bumped from 1 to 2.
Proto:
- Minor change in behavior: non-const expression self-assignment creates an assign node. See Proto's Release Notes for details.
- Minor change to recommended expression extension mechanism: use BOOST_PROTO_EXTENDS_USING_ASSIGN(). See Proto's Release Notes for details.
- Fix error in invocation of callable monomorphic function objects in Proto transforms.
- Fix misc const correctness issues, work around fusion bug.
- Add non-const function call overloads to proto terminals.
- Add a default constructor to proto::literal<>.
- Do not use deprecated config macros.
- Add proto::assert_matches() function and friends to <boost/proto/debug.hpp>.
- functional::make_expr<> and functional::unpack_expr<> return const-qualified rvalues.
- Add documentation for Expr and Domain concepts.
Random:
- Put the implementation of random_device in a compiled lib, and added Windows support.
- Rewrote the documentation using Quickbook/Doxygen/Boostbook and brought it up to date.
Spirit: Spirit V2.3, see the 'What's New' section for details.
Thread:
- Uses boost::throw_exception for all exceptions except thread_interrupted
- Added fix for issue 2742
- Optimizations to mutex locks and call_once
Unordered:
- erase_return_void is now quick_erase (#3966).
Uuid:
- Split generators into separate files.
- Fixed bug in basic_random_generator (#3971).
- Updated documentation.
Wave: See the Changelog for details.
Xpressive:
- Add missing include to <boost/xpressive/regex_error.hpp>.

Build System

When cross-compiling to GNU targets, static libraries are properly created. Previously, using such libraries resulted in Archive has no index error.
The naming of DLL and import libraries with gcc compiler on Windows, both mingw and cygwin, now matches default conventions of those environments. Previously, the naming scheme was the same as for other Windows compilers.

Updated Tools

Quickbook:
- Unicode escape characters.
- Support the UTF-8 byte order mark.
- Disallow [ in simple markup. Fixes some errors with mismatched punctuation.
- Add a command line flag (-D) to define macros at the command line.
- Improved post-processor output.
- Check that [section] and [endsect] tags are balanced in templates.

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Leopard.
Linux:
- GCC 4.4.1 on Ubuntu Linux.
- GCC 4.4 on 64-bit Suse.
Windows:
- Visual C++ 8.0 SP1 and 9.0 SP1 on Windows XP.
- GCC 4.3.3, using Mingw
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.

Boost's additional test compilers include:

Linux:
- Intel 10.1, 11.1 on 32 bit Red Hat Enterprise Linux.
- Intel 10.1, 11.0, 11.1 on 64 bit Red Hat Enterprise Linux.
- GCC 3.4.6, 4.2.4, 4.3.4, 4.4.3 on Red Hat Enterprise Linux.
- GCC 4.3.4, 4.4.3 with C++0x extensions on Red Hat Enterprise Linux.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
OS X:
- Intel C++ Compiler 10.1, 11.0, 11.1 on Leopard.
- GCC 4.0.1 on Intel Leopard.
- Clang from subversion.
Windows:
- Visual C++ 8,0, 9,0 on 32-bit XP.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 on XP.
- Visual C++ 10.0 on 64-bit Windows 7.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.1 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.3.3 on Mingw.
- GCC 4.4.3 on Mingw, with and without C++0x extensions.
- GCC 4.5 on Mingw.
AIX:
- IBM XL C/C++ Enterprise Edition, V10.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.2, 64 bit.
- GCC 4.2.1 on FreeBSD 8.0, 32 bit.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.42.0

Tue 2 Feb 2010 14:00:00 GMT

New Libraries

Uuid: A universally unique identifier, from Andy Tompkins.

Updated Libraries

Asio:
- Added a new HTTP Server 4 example illustrating the use of stackless coroutines with Asio.
- Changed handler allocation and invocation to use boost::addressof to get the address of handler objects, rather than applying operator& directly (#2977).
- Restricted MSVC buffer debugging workaround to 2008, as it causes a crash with 2010 beta 2 (#3796, #3822).
- Fixed a problem with the lifetime of handler memory, where Windows needs the OVERLAPPED structure to be valid until both the initiating function call has returned and the completion packet has been delivered.
- Don't block signals while performing system calls, but instead restart the calls if they are interrupted.
- Documented the guarantee made by strand objects with respect to order of handler invocation.
- Changed strands to use a pool of implementations, to make copying of strands cheaper.
- Ensured that kqueue support is enabled for BSD platforms (#3626).
- Added a boost_ prefix to the extern "C" thread entry point function (#3809).
- In getaddrinfo emulation, only check the socket type (SOCK_STREAM or SOCK_DGRAM) if a service name has been specified. This should allow the emulation to work with raw sockets.
- Added a workaround for some broken Windows firewalls that make a socket appear bound to 0.0.0.0 when it is in fact bound to 127.0.0.1.
- Applied a fix for reported excessive CPU usage under Solaris (#3670).
- Added some support for platforms that use older compilers such as g++ 2.95 (#3743).
Circular Buffer:
- Added methods erase_begin(size_type) and erase_end(size_type) with constant complexity for such types of stored elements which do not need an explicit destruction e.g. int or double.
- Similarly changed implementation of the clear() method and the destructor so their complexity is now constant for such types of stored elements which do not require an explicit destruction (the complexity for other types remains linear).
Fusion:
- The accumulator is the first argument to the functor of fusion::fold and fusion::accumulate (#2355).
- Added support for associative iterators and views (#3473).
Graph:
- Removed old interface to compressed_sparse_row_graph, making new interface the default.
Integer:
- Reverted Trunk to release branch state (i.e. a "known good state").
- Fixed issues: 653, 3084, 3177, 3180, 3568, 3657, 2134.
- Added long long support to boost::static_log2, boost::static_signed_min, boost::static_signed_max, boost::static_unsigned_minboost::static_unsigned_max, when available.
- The argument type and the result type of boost::static_signed_min etc are now typedef'd. Formerly, they were hardcoded as unsigned long and int respectively. Please, use the provided typedefs in new code (and update old code as soon as possible).
Iostreams:
- Fixed many outstanding issues. Thanks to Richard Smith for his work on this. (#3612, #3311, #2094, #3010, #2894, #3011, #3352, #3505).
- For more information see the library release notes.
Program.Options:
- Information about option name added to a few exception classes and various clean ups in exception classes (#3423).
- Description wordwrapping in presense of default parameters fixed (#2613).
- Empty value in configuration file is now permitted (#1537).
- Quotes are no longer stripped from string values (#850).
- Fix endless loop in case of long default arguments (#689).
- Fix compile warning caused by usage of boost::any (#2562).
- Fix memory bug in example/response_file.cpp (#3525).
- Most compilation warnings were fixed (#3608).
- Make column width for description text configurable. (#3703).
- Add general split function: split_unix() (#2561).
- Enable open config files from given file name (#3264).
- Additional flag for required options (#2982).
- Enable case insensitive style for command line (#3498).
PropertyMap:
- Removed old header files (directly in the boost/ directory); they were deprecated since 1.40, replaced by headers in boost/property_map/.
Proto:
- Fix const correctness issues with proto::flatten and friends (#3364).
- Accomodate recent change to fusion::fold, remove old support for Doxygen and pre-1.35 Fusion (#3553).
- In binary operations, when one operand has a user-specified domain and the other has the default domain, the user-specified domain trumps.
- Fix BOOST_PROTO_EXTENDS to work with elaborated types.
- Work around EDG compiler bug with function types and cv-qualification.
Regex:
- Added support for Functors rather than strings as format expressions.
- Improved error reporting when throwing exceptions to include better more relevant information.
- Improved performance and reduced stack usage of recursive expressions.
- Fixed tickets #2802, #3425, #3507, #3546, #3631, #3632, #3715, #3718, #3763, #3764
Spirit: Spirit V2.2, see the 'What's New' section for details.
Unordered:
- Support instantiating the containers with incomplete value types.
- Add erase_return_void as a temporary workaround for the current erase which can be inefficient because it has to find the next element to return an iterator (#3693).
- Add templated find overload for compatible keys.
- Improved codegear compatibility.
- Other minor changes, full details in the changelog.
Xpressive:
- match_results no longer relies on undefined behavior in std::list (#3278).
- Do NOT copy singular iterators (#3538).
- Eliminate gcc and darwin warnings (#3734).

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Leopard.
- GCC 4.0.1 on PowerPC Tiger.
Linux:
- GCC 4.4.1 on Ubuntu Linux.
- GCC 4.4 on Debian.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.
- Visual C++ 9.0 on Windows 2008, 64 bit.
- GCC 4.3.3, using Mingw
FreeBSD:
- GCC 4.2.1, 32 and 64 bit.

Boost's additional test compilers include:

Linux:
- Intel 10.1 on Red Hat Enterprise Linux.
- Intel 10.1 on 64 bit Red Hat Enterprise Linux.
- Intel 11.0 on 32 bit Red Hat Enterprise Linux.
- Intel 11.0 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Linux Redhat 5.1 Server.
- Intel 11.1 on Suse Linux 64 bit.
- GCC 3.4.6, GCC 4.2.4, GCC 4.3.4 and GCC 4.4.2 on Red Hat Enterprise Linux.
- GCC 4.3.4 and GCC 4.4.2 with C++0x extensions on Red Hat Enterprise Linux.
- GCC 4.4.1 on 64 bit Linux.
- GCC 4.4.3 on Debian unstable.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
OS X:
- Intel C++ Compiler 10.1, 11.0, 11.1 on Leopard.
- GCC 4.0.1 on Intel Leopard.
- GCC 4.0.1 on PowerPC Tiger.
Windows:
- Visual C++ 7.1, 8,0, 9,0 on XP.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 beta 2.
- Visual C++ 10.0 on 32-bit Vista.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.1 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.4.1 on Mingw, with and without C++0x extensions.
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.0, 32 bit and 64 bit.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, Daniel James and Vladimir Prus managed this release.

Version 1.41.0

Tue, 17 Nov 2009 17:00:00 GMT

New Libraries

Property Tree: A tree data structure especially suited to storing configuration data, from Marcin Kalicinski and Sebastian Redl.

Updated Libraries

DateTime:
- The default format for time durations is now "%-%O:%M:%S%F" instead of "%-%H:%M:%S%F" that was used previously. In order to retain the old behavior, the format string has to be specified explicitly during the time IO facet construction (#1861).
- Gregorian dates now use 32-bit integer type internally on 64-bit platforms (#3308).
- See the full changelog for more detail.
Filesystem:
- Bug fixes: (#3385). (#3528). (#3509).
Iostreams: Some old unreleased developments. There are still several open issues that should be fixed in the next version.
- Add a grep filter (#1627).
- Support archives with multiple members (#1896).
- Make tee work with input streams (#791).
- Improved filesystem interoperability.
- Several warnings fixed or suppressed (including #1618, #1875, #2779).
- Various other fixes (including #1580, #1671).
Math: Substantially improved the performance of the incomplete gamma function and it's inverse: this enhances the performance of the gamma, poisson, chi-squared and non-central chi-squared distributions.
Multi-index Containers: Maintenance fixes. Consult the library release notes for further information.
Proto:
- Clean up some MSVC warnings and errors in /Za (disable Microsoft extensions) mode.
- Fixes for c++0x mode on various compilers.
Python: Boost.Python now supports Python 3 (Haoyu Bai's Google Summer of Code project, mentored by Stefan Seefeld).
Regex: Added support for many Perl 5.10 syntax elements including named sub-expressions, branch resets and recursive regular expressions.
Spirit: This is the initial official release of the new Spirit V2.1, a completely new library for parsing, lexing, and output generation. Note: this release is not backwards compatible with earlier versions. Known issue: qi::symbol::find will match a symbol that starts with the string you're searching for. This will be fixed in the next version.
System:
- Bug fix: (#3559).
Thread:
- Support for futures, promises and packaged tasks added
- boost::thread_specific_ptr is now faster when there are lots of thread-specific objects
- Some Boost.Thread facilities are now header-only
Unordered: Major update:
- Replaced a lot of the macro based implementation with a cleaner template based implementation.
- Reduced memory use.
- Full details in the changelog.
Utility: A "const" issue of value_initialized is fixed: Its data() member function and its conversion operator are replaced by overloads for const and non-const access (#2548).
Wave: See the changelog for details.
Xpressive:
- Fix infinite loop with some uses of \Q...\E quotemeta (#3586).
- Eliminate unreachable code warnings on MSVC
- Clean up some MSVC warnings and errors in /Za ("disable Microsoft extensions") mode.
- Fixes for c++0x mode on various compilers.

Build System

A bug preventing "fat" 32-bit + 64-bit builds on OSX has been fixed.

Boost.CMake moved

The cmake version of boost has moved; the Boost.CMmake release will be separate and will lag the main release slightly, but will also be capable of producing patch releases as necessary.

More information on the Boost CMake wiki page.

Updated Tools

Quickbook 1.5: These changes require your document to use the [quickbook 1.5] tag:
- More intuitive syntax and variable lookup for template calls (#1174, #2034, #2036).
- Image attributes (#1157)
- Table Ids (#1194)
- Better handling of whitespace in section syntax. (#2712)

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Tiger and Leopard.
- GCC 4.0.1 on PowerPC Tiger.
Linux:
- GCC 4.4.1 on Ubuntu Linux.
- GCC 4.4 on Debian
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- Intel 10.1 on Red Hat Enterprise Linux.
- Intel 10.1 on 64-bit Red Hat Enterprise Linux.
- Intel 10.1 on Suse Linux on 64 bit Itanium.
- Intel 11.0 on 32 bit Red Hat Enterprise Linux.
- Intel 11.0 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Red Hat Enterprise Linux.
- Intel 11.1 on 64 bit Linux Redhat 5.1 Server.
- GCC 3.4.3, GCC 4.2.4, GCC 4.3.3 and GCC 4.4.1 on Red Hat Enterprise Linux.
- GCC 4.3.3 and GCC 4.4.1 with C++0x extensions on Red Hat Enterprise Linux.
- GCC 4.3.3 on 64-bit Redhat Server 5.1.
- GCC 4.3.3 on 64 bit Linux.
- GCC 4.3.4 on Debian unstable.
- GCC 4.3.2 on 64 bit Gentoo.
- QLogic PathScale(TM) Compiler Suite: Version 3.2 on Red Hat Enterprise Linux.
- Sun 5.9 on Red Hat Enterprise Linux.
OS X:
- Intel C++ Compiler 11.1 on Leopard.
- Intel C++ Compiler 10.1, 11.0.
- GCC 4.0.1 on Intel Tiger.
- GCC 4.0.1 on PowerPC Tiger.
Windows:
- Visual C++ 7.1, 8,0, 9,0 on XP.
- Visual C++ 9.0 on 32-bit Vista.
- Visual C++ 9.0 on AMD 64-bit Vista.
- Visual C++ 9.0 using STLport 5.2 on XP and Windows Mobile 5.0.
- Visual C++ 10.0 beta 1 with a patch for the program options lib.
- Borland/Codegear C++ 5.9.3, 6.1.3 (2009), 6.2.0 (2010).
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- GCC 4.4.1 on Mingw, with and without C++0x extensions.
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40.
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.0.
Solaris:
- Sun C++ 5.10 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.40.0

Thu, 27 Aug 2009 17:00:00 GMT

Update

Added missing notes for Graph and Property Map.

Boost.CMake

Boost.CMake is now distributed separately. The cmake build for boost is BROKEN in the tarballs above. See the Boost.CMake wiki page for pointers to working versions.

Updated Libraries

Accumulators:
- Works on GCC 4.4.
Asio:
- Added a new ping example to illustrate the use of ICMP sockets.
- Changed the buffered*_stream<> templates to treat 0-byte reads and writes as no-ops, to comply with the documented type requirements for SyncReadStream, AsyncReadStream, SyncWriteStream and AsyncWriteStream.
- Changed some instances of the throw keyword to boost::throw_exception() to allow Asio to be used when exception support is disabled. Note that the SSL wrappers still require exception support (#2754).
- Made Asio compatible with the OpenSSL 1.0 beta (#3256).
- Eliminated a redundant system call in the Solaris /dev/poll backend.
- Fixed a bug in resizing of the bucket array in the internal hash maps (#3095).
- Ensured correct propagation of the error code when a synchronous accept fails (#3216).
- Ensured correct propagation of the error code when a synchronous read or write on a Windows HANDLE fails.
- Fixed failures reported when _GLIBCXX_DEBUG is defined (#3098).
- Fixed custom memory allocation support for timers (#3107).
- Tidied up various warnings reported by g++ (#1341, #2618).
- Various documentation improvements, including more obvious hyperlinks to function overloads, header file information, examples for the handler type requirements, and adding enum values to the index (#3157, #2620).
Circular Buffer:
- Fixed bugs #2785, #3285.
Foreach:
- Workaround for conflict with Python headers (#3000).
Function:
- Optimize the use of small target objects.
- Make Boost.Function compile under BOOST_NO_EXCEPTIONS (#2499, #2494, #2469, #2466, #2900)
- Various minor fixes (#2642, #2847, #2929 #3012)
Fusion:
- Improved compile times for fusion::vector.
Graph:
- Merged in the Parallel Boost Graph Library, giving a full suite of graph algorithms and data structures for distributed-memory computers (such as clusters).
- Updates to the interface of the compressed sparse row graph, including constructors from unsorted edge lists.
- An implicit grid graph, saving memory over using the former generator.
- New algorithms: Dijkstra's single-source shortest path algorithm without a separate color map and an algorithm to find maximal common subgraphs between two graphs.
- Assorted bug fixes.
Hash:
- Automatically configure the float functions using template metaprogramming instead of trying to configure every possibility manually.
Interprocess:
- Windows shared memory is created in Shared Documents folder so that it can be shared between services and processes
- Fixed bugs #2967, #2973, #2992, #3138, #3166, #3205.
Intrusive:
- Code cleanup in tree_algorithms.hpp and avl_tree_algorithms.hpp
- Fixed bug #3164.
MPL:
- Added mpl::char_ and mpl::string for compile-time string manipulation, based on multichar literals (#2905).
- Updated MPL Reference Manual.
- Bug fixes.
Program.Options:
- Support for building with disabled exceptions (#2096).
- Unicode parser no longer drops original tokens (#2425).
- Fixed crash on user-inserted items in variables_map (#2782).
Property Map:
- Moved property map code into a separate directory, boost/property_map/. The old files exist and forward to the new ones; the previous files directly in boost/ will be removed in Boost 1.42.0.
- Moved distributed property maps to boost::graph::parallel namespace.
- Added a property map based on a boost::shared_array, providing a simpler interface.
Proto:
- PrimitiveTransforms have stricter conformance to ResultOf protocol. (Warning: some invalid code may break.)
- Add a sensible default for proto::_default's template parameter.
- Improved default evaluation strategy for pointers to members.
- GCC 3.4 portability fixes (#3021).
- Work around Visual C++'s non-std-compliant ciso646 macros.
Random:
- Made the constructors of all the generators call the copy constructor when passed a non-const reference.
- Changed seeding functions to accept any arithmetic type. As a side-effect, the exact signature of seed changed for some classes.
- Major bug fixes in uniform_int.
Serialization:
- Removed deprecated headers: boost/static_warning.hpp, boost/state_saver.hpp, boost/smart_cast.hpp, boost/pfto.hpp. Use the the equivalent headers in the boost/serialization/ directory instead (#3062).
- detail::archive_serializer_map should now be used instead of detail::archive_pointer_iserializer. For more details see the library release notes.
Unordered:
- Implement emplace for all compilers, not just ones with rvalue references and variadic templates (#1978).
- Create less buckets by default.
- Some minor tweaks for better compiler support (#2908, #3096, #3082).
Xpressive:
- Works on Visual C++ 10.0 (#3124).

Build System

The default naming of libraries in Unix-like environment now matches system conventions, and does not include various decorations. Naming of libraries on Cygwin was also fixed. Support for beta versions of Microsoft Visual Studio 10 was added. With gcc, 64-bit compilation no longer requires that target architecture be specified.

Updated Tools

Boostbook:
- Hide INTERNAL ONLY enums in doxygen documentation (#3242).
- Tweaked appearance of member classes/structs/unions in a class synopsis.
Quickbook:
- Support python code snippets (#3029).
- Add teletype source mode (#1202)

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Tiger and Leopard
- GCC 4.0.1 on PowerPC Tiger
Linux:
- GCC 4.3.3 on Ubuntu Linux.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- Intel 9.0 on Red Hat Enterprise Linux.
- Intel 10.0 on Red Hat Enterprise Linux.
- Intel 10.1 on 64-bit Linux Redhat 5.1 Server.
- Intel 10.1 on Suse Linux on 64 bit Itanium.
- Intel 11.0 on Red Hat Enterprise Linux.
- Intel 11.1 on Red Hat Enterprise Linux.
- GCC 3.4.3, GCC 4.0.1, GCC 4.2.4, GCC 4.3.3 and GCC 4.4.0 on Red Hat Enterprise Linux.
- GCC 4.3.3 and GCC 4.4.0 with C++0x extensions on Red Hat Enterprise Linux.
- GCC 4.1.1, 4.2.1 on 64-bit Red Hat Enterprise Linux.
- GCC 4.1.2 on Suse Linux on 64 bit Itanium.
- GCC 4.1.2 on 64-bit Redhat Server 5.1.
- GCC Open64 4.2.2 on Red Hat Enterprise Linux.
- GCC 4.3.4 on Debian unstable.
- QLogic PathScale(TM) Compiler Suite: Version 3.1 on Red Hat Enterprise Linux.
- GCC version 4.2.0 (PathScale 3.2 driver) on 64-bit Red Hat Enterprise Linux.
- Sun 5.9 on Red Hat Enterprise Linux.
OS X:
- Intel 10.1, 11.0 on Intel Leopard.
- Intel 10.1, 11.0 on Intel Tiger.
- GCC 4.0.1, 4.2.1 on Intel Leopard.
- GCC 4.0.1 on Intel Tiger.
- GCC 4.0.1 on PowerPC Tiger.
Windows:
- Visual C++ 7.1 on XP.
- Visual C++ 9.0 on XP.
- Visual C++ 9.0 on Vista.
- Visual C++ 9.0 on Vista 64-bit.
- Visual C++ 9.0, using STLport 5.2, on XP and Windows Mobile 5.0.
- Visual C++ 10.0 beta.
- Borland 5.9.3, 6.1.0, 6.1.3.
- Borland C++ Builder 2007 and 2009.
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 32-bit.
- Intel C++ 11.1, with a Visual C++ 9.0 backend, on Vista 64-bit.
- GCC 4.3.3 and 4.4.0, on Mingw with C++0x features.
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40.
Solaris:
- Sun C++ 5.7, 5.8, 5.9 on Solaris 5.10.
- GCC 3.4.6 on Solaris 5.10.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.39.0

Sat, 02 May 2009 12:00:00 GMT

New Libraries

Signals2: Managed signals & slots callback implementation (thread-safe version 2), from Frank Mori Hess.

Updated Libraries

Asio:
- Implement automatic resizing of the bucket array in the internal hash maps. This is to improve performance for very large numbers of asynchronous operations and also to reduce memory usage for very small numbers. A new macro BOOST_ASIO_HASH_MAP_BUCKETS may be used to tweak the sizes used for the bucket arrays.
- Add performance optimisation for the Windows IOCP backend for when no timers are used.
- Prevent locale settings from affecting formatting of TCP and UDP endpoints (#2682).
- Fix a memory leak that occurred when an asynchronous SSL operation's completion handler threw an exception (#2910).
- Fix the implementation of io_control() so that it adheres to the documented type requirements for IoControlCommand (#2820).
- Fix incompatibility between Asio and ncurses.h (#2156).
- On Windows, specifically handle the case when an overlapped ReadFile call fails with ERROR_MORE_DATA. This enables a hack where a windows::stream_handle can be used with a message-oriented named pipe (#2936).
- Fix system call wrappers to always clear the error on success, as POSIX allows successful system calls to modify errno (#2953).
- Don't include termios.h if BOOST_ASIO_DISABLE_SERIAL_PORT is defined (#2917).
- Cleaned up some more MSVC level 4 warnings (#2828).
- Various documentation fixes (#2871).
Flyweight:
- The refcounted component was not thread-safe due to an incorrect implementation and could deadlock under heavy usage conditions. This problem has been corrected.
Foreach:
- Eliminate shadow warnings on gcc for nested FOREACH loops
- Portability fix for Intel-Win toolset
Hash:
- Remove deprecated headers for hashing containers. Everything that was in them is included in <functional/hash.hpp> (#2412).
- Other minor changes, full details in the library change log.
Interprocess:
- Increased portability and bug fixes. Full details in the library change log.
Intrusive:
- Optimizations and bug fixes. Full details in the library change log.
Program.Options:
- Multitoken options fixed (#469).
Proto:
- Work around incompatibility with standard Linux header.
- Add proto::noinvoke<> to block metafunction invocation in object transforms.
PtrContainer:
- Bug fixes from Trac applied.
Range:
- Bug fixes from Trac applied.
Unordered:
- Fixed regression in 1.38 that prevented unordered from using more than about 1.5 million buckets (#2975).
- Minor implementation changes, including #2756. Full details in the library change log.
Xpressive:
- Work around for gcc optimization problem resulting in pure virtual function call runtime error (#2655).

Updated Tools

Boostbook:
- Improved PDF generation.
- Preliminary HTMLHelp support.
- Add default path for callout images.
- Include data members' <purpose> in the class synopsis.
- Fix bug where a function's <purpose> wasn't displayed if it was just plain text.
- Support the alt tag in <headername> and <macroname>. Use this if the header or macro name is different to the contents of the tag (#1977).
- Support links relative to the boost root in <ulink> tags, using a custom url, see the linking documentation for details (#1166).
- Avoid generating filenames that only differ in case for function, method and macro documentation.
- Run the docbook chunker quietly, unless boostbook.verbose is set. This parameter might be used in other places in future releases.
- Make the 1.1 DTD available.
- Fill in some missing reference documentation (partially fixes #2153).
- Changes to doxygen integration:
  - Support \throw.
  - Support global variables and enums.
  - Better support for documentation written in function and method bodies.
  - Workaround a problem with doxygen 1.5.8's xml output (#2937).
Quickbook:
- Return an error code and error count if there are any errors (#1399).
- Support both windows and cygwin paths at the compile line when compiled with cygwin.
- Fix some issues with C++ and Python code:
  - Fail gracefully for a mismatched ''.
  - Warn if any unexpected character are encountered and write them out properly (#1170).
  - Fix a bug for hex encoded characters in strings (#2860).
- Improved testing, including tests for expected failures.
- Generate valid document info for document types other than library (#2711):
  - Remove library specific attributes.
  - Put title before info block.
- Fix a bug when calling templates.
- Less warnings when built using gcc.
- Small documentation improvements (#1213, #2701).
- Fix a bug with xinclude pages when outdir is the current directory (#2921).

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel Tiger and Leopard
- GCC 4.0.1 on PowerPC Tiger
Linux:
- GCC 4.3.2 on Ubuntu Linux.
- GCC 4.3.3 on Debian "unstable".
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- Intel 9.0 on Red Hat Enterprise Linux
- Intel 10.0 on Red Hat Enterprise Linux
- Intel 10.1 on 64-bit Linux Redhat 5.1 Server.
- Intel 10.1 on Suse Linux on 64 bit Itanium
- Intel 11.0 on Red Hat Enterprise Linux
- GCC 4.1.1, 4.2.1 on 64-bit Red Hat Enterprise Linux
- GCC 4.1.2 on 64-bit Redhat Server 5.1
- GCC 4.1.2 on Suse Linux on 64 bit Itanium
- GCC 3.4.3, GCC 4.0.1, GCC 4.2.4 and GCC 4.3.2 on Red Hat Enterprise Linux
- GCC 4.3.2 with C++0x extensions on Red Hat Enterprise Linux
- GCC 4.2.1 on OpenSuSE Linux
- QLogic PathScale(TM) Compiler Suite: Version 3.1 on Red Hat Enterprise Linux
- GNU gcc version 4.2.0 (PathScale 3.2 driver) on 64-bit Red Hat Enterprise Linux
- Sun 5.9 on Red Hat Enterprise Linux
OS X:
- Intel 9.1, 10.1 on Tiger
- Intel 10.1, 11.0 on Leopard
- GCC 4.2.1 on Leopard
Windows:
- Visual C++ 9.0 on Vista.
- Visual C++ 9.0, using STLport 5.2, on XP and Windows Mobile 5.0.
- Borland 5.9.3
- Borland 6.1.0
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on XP 32-bit.
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on Vista 64-bit. (TODO: not recently)
- GCC 4.3.3, on Mingw
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
NetBSD:
- GCC 4.1.2 on NetBSD 4.0/i386 and NetBSD 4.0/amd64.
Solaris:
- Sun C++ 5.7, 5.8, 5.9 on Solaris 5.10
- GCC 3.4.6 on Solaris 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.38.0

Sun, 08 Feb 2009 12:00:00 GMT

New Libraries

Flyweight:
- Design pattern to manage large quantities of highly redundant objects, from Joaquín M López Muñoz.
ScopeExit:
- Execute arbitrary code at scope exit, from Alexander Nasonov.
Swap:
- Enhanced generic swap function, from Joseph Gauterin.

Updated Libraries

Accumulators:
- Add rolling_sum, rolling_count and rolling_mean accumulators.
Any:
- Use a by-value argument for operator= (#2311).
Asio:
- Improved compatibility with some Windows firewall software.
- Ensured arguments to windows::overlapped_ptr::complete() are correctly passed to the completion handler (#2614).
- Fixed a link problem and multicast failure on QNX (#2504, #2530).
- Fixed a compile error in SSL support on MinGW / g++ 3.4.5.
- Drop back to using a pipe for notification if eventfd is not available at runtime on Linux (#2683).
- Various minor bug and documentation fixes (#2534, #2541, #2607, #2617, #2619)
Config:
- Add new macros BOOST_NO_STD_UNORDERED and BOOST_NO_INITIALIZER_LISTS.
- Added Codegear compiler support.
- Added Dragonfly to the BSD family of configs.
- Updated MSVC's binary ABI settings to match compiler default when doing 64-bit builds.
- Recognise latest compilers from MS and Intel.
Date_Time:
- Added support for formatting and reading time durations longer than 24 hours with new formatter: %0.
- Removed the testfrmwk.hpp file from the public include directory.
- Fixed several bugs and compile errors.
- For full details see the change history
Exception:
- Improved and more customizable diagnostic_information output.
Filesystem:
- Fix native(name) test failures on POSIX-like systems.
- Several bugfixes (#2543, #2224, #2531, #1840, #2542).
Graph:
- Added a new algorithms for Travelling Salesman Problem approximation (metric_tsp_approx) and resource-constrained Shortest Paths (r_c_shortest_paths).
- Support for named vertices in adjacency_list.
- A number of bugfixes ( #416, #1622, #1700, #2209, #2392, #2460, and #2550)
Hash:
- boost/functional/detail/container_fwd.hpp has been moved to boost/detail/container_fwd.hpp. The current location is deprecated.
- For more detail, see the library changelog.
Interprocess:
- Updated documentation to show rvalue-references functions instead of emulation functions.
- More non-copyable classes are now movable.
- Move-constructor and assignments now leave moved object in default-constructed state instead of just swapping contents.
- Several bugfixes (#2391, #2431, #1390, #2570, #2528).
Intrusive:
- New treap-based containers: treap, treap_set, treap_multiset.
- Corrected compilation bug for Windows-based 64 bit compilers.
- Corrected exception-safety bugs in container constructors.
- Updated documentation to show rvalue-references functions instead of emulation functions.
Lexical Cast:
- Changed to work without RTTI when BOOST_NO_TYPEID is defined (#1220).
Math:
- Added Johan Råde's optimised floating point classification routines.
- Fixed code so that it compiles in GCC's -pedantic mode (bug report #1451).
Multi-index Containers: Some redundant type definitions have been deprecated. Consult the library release notes for further information.
Proto:
- Fix problem with SFINAE of binary operators (Bug 2407).
- Fix proto::call transform for callable transforms with >3 arguments.
- result_of::value changed behavior for array-by-value terminals.
- unpack_expr requires only Forward Sequences rather than Random Access Sequences.
- Deprecate legacy undocumented BOOST_PROTO_DEFINE_(VARARG_)FUNCTION_TEMPLATE macros.
- Add BOOST_PROTO_REPEAT and BOOST_PROTO_LOCAL_ITERATE macros to help with repetitive code generation
- Support for nullary expressions with tag types other than proto::tag::terminal
- Allow 0- and 1-argument variants of proto::or_ and proto::and_
Regex:
- Breaking change: empty expressions, and empty alternatives are now allowed when using the Perl regular expression syntax. This change has been added for Perl compatibility, when the new syntax_option_type no_empty_expressions is set then the old behaviour is preserved and empty expressions are prohibited. This is issue #1081.
- Added support for Perl style ${n} expressions in format strings (issue #2556).
- Added support for accessing the location of sub-expressions within the regular expression string (issue #2269).
- Fixed compiler compatibility issues #2244, #2514, and #2458.
Thread:
- No longer catches unhandled exceptions in threads as this debuggers couldn't identify the cause of unhandled exceptions in threads. An unhandled exception will still cause the application to terminate.
TR1:
- Added support for the TR1 math functions and the unordered containers.
Type Traits:
- Added support for Codegear intrinsics.
- Minor tweaks to warning suppression and alignment_of code.
Unordered:
- Use boost::swap.
- Use a larger prime number list for selecting the number of buckets.
- Use aligned storage to store the types.
- Add support for C++0x initializer lists where they're available.
- For more detail, see the library changelog.
Xpressive:
- basic_regex gets nested syntax_option_flags and value_type typedef, for compatibility with std::basic_regex
- Ported to Proto v4; Proto v2 at boost/xpressive/proto has been removed.
- regex_error inherits from boost::exception

Other Changes

Experimental support for building Boost with CMake has been introduced in this version. For more details see the wiki, Discussion is taking place on the Boost-cmake mailing list.
Fixed subversion properties for several files. Most notably, unix shell scripts should always have unix line endings, even in the windows packages.

Compilers Tested

Boost's primary test compilers are:

OS X:
- GCC 4.0.1 on Intel OS X 10.4.10, 10.5.2
- GCC 4.0.1 on PowerPC OS X 10.4.9
Linux:
- GCC 4.3.2 on Ubuntu Linux.
- GCC 4.3.3 on Debian "unstable".
HP-UX:
- GCC 4.2.1 on HP-UX 64-bit.
- HP C/aC++ B3910B A.06.17 on HP-UX 64-bit.
Windows:
- Visual C++ 7.1 SP1, 8.0 SP1 and 9.0 SP1 on Windows XP.

Boost's additional test compilers include:

Linux:
- GCC 4.1.1, 4.2.1 on 64-bit Red Hat Enterprise Linux
- GCC 4.1.2 on 64-bit Redhat Server 5.1
- GCC 3.4.3, GCC 4.0.1, GCC 4.2.4 and GCC 4.3.2 on Red Hat Enterprise Linux
- GCC 4.3.2 with C++0x extensions
- GCC 4.2.1 on OpenSuSE Linux
- pgCC 8.0-0a 64-bit target on Red Hat Enterprise Linux
- QLogic PathScale(TM) Compiler Suite: Version 3.1 on Red Hat Enterprise Linux
OS X:
- Intel 9.1, 10.0 on OS X 10.4.10
- Intel 10.1, 11.0 on OS X 10.5.2
Windows:
- Visual C++ 9.0 on Vista EE 64-bit.
- Visual C++ 9.0 express on Vista 32-bit.
- Visual C++ 9.0 on XP 32-bit.
- Visual C++ 8.0, using STLport, on XP and Windows Mobile 5.0
- Visual C++ 7.1, using STLport, on XP
- Borland 5.9.3
- Borland 6.1.0
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on XP 32-bit.
- Intel C++ 11.0, with a Visual C++ 9.0 backend, on Vista 64-bit.
- Comeau 4.3.10.1 beta 2, with a Visual C++ 9.0 backend.
- GCC 3.4.4, on Cygwin
AIX:
- IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
FreeBSD:
- GCC 4.2.1 on FreeBSD 7.
NetBSD:
- GCC 4.1.2 on NetBSD 4.0/i386 and NetBSD 4.0/amd64.
QNX:
- QNX Software Development Platform 6.4.0 x86
Solaris:
- Sun C++ 5.7, 5.8, 5.9 on Solaris 5.10
- GCC 3.4.6 on Solaris 5.10

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release. Thanks to Vicente Botet for helping compile these release notes.

Version 1.37.0

Mon, 03 Nov 2008 12:00:00 GMT

New Libraries

Proto:
- Expression template library and compiler construction toolkit for domain-specific embedded languages, from Eric Niebler.

Updated Libraries

Asio:
- Enhanced CompletionCondition concept with the signature size_t CompletionCondition(error_code ec, size_t total), where the return value indicates the maximum number of bytes to be transferred on the next read or write operation. (The old CompletionCondition signature is still supported for backwards compatibility).
- New windows::overlapped_ptr class to allow arbitrary overlapped I/O functions (such as TransmitFile) to be used with Asio.
- On recent versions of Linux, an eventfd descriptor is now used (rather than a pipe) to interrupt a blocked select/epoll reactor.
- Added const overloads of lowest_layer().
- Synchronous read, write, accept and connect operations are now thread safe (meaning that it is now permitted to perform concurrent synchronous operations on an individual socket, if supported by the OS).
- Reactor-based io_service implementations now use lazy initialisation to reduce the memory usage of an io_service object used only as a message queue.
Circular Buffer:
- Added new methods is_linearized() and rotate(const_iterator).
- Minor bug fixes and documentation updates.
Dynamic Bitset:
- Constructor "do the right thing" dispatch, a la standard sequence containers (follows the proposed resolution of library issue 438, currently in the C++0x working paper).
- Improvements to documentation, code examples and implementation.
Exception:
- Support for non-RTTI builds.
- Optimizations.
- A new macro BOOST_THROW_EXCEPTION which can be used instead of boost::throw_exception when throwing, to automatically record information about the location of the throw in the exception object.
Hash:
- Minor bug fix (ticket 2264).
Interprocess:
- Added placement insertion (emplace(), emplace_back()...) methods to containers.
- Containers can be used now in recursive types.
- Minor bug fixes.
Intrusive:
- Intrusive now takes advantage of compilers with variadic templates.
- clone_from functions now copy predicates and hash functions of associative containers.
- Added incremental hashing to unordered containers via incremental<> option.
- Minor bug fixes.
Math.Special Functions: Improved accuracy and testing of the inverse hypergeometric functions.
Type Traits: Added better support for the Codegear compiler.
Unordered:
- Rename overload of emplace with hint, to emplace_hint as specified in n2691.
- Provide forwarding headers at <boost/unordered/unordered_map_fwd.hpp> and <boost/unordered/unordered_set_fwd.hpp>.
- Move all of the implementation inside the boost/unordered directory.

Compilers Tested

Boost's primary test compilers are:

GCC 4.01 on Mac OS X 10.4.10 with both Intel and Power PC
GCC 4.2.4 on Ubuntu Linux 8.10
GCC 4.3.2 on Debian Sid
GCC 4.2.1 on HP-UX Integrity
HP C/aC++ B3910B A.06.17 on HP-UX 64-bit
Visual C++ 9.0 SP1, 8.0, and 7.1 SP1, all on Windows XP

Boost's additional test compilers include:

GCC 4.1.2 on NetBSD
HP aCC on OS: HP-UX B.11.31 U ia64 and HP-UX B.11.31 9000/800 RISC
IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
Intel 9.1, 10.0, and 10.1, on Mac OS X 10.4.10
Compaq C++ V7.1-006 for Compaq Tru64 Unix on an OSF1 V5.1 platform.
Sun C++ 5.7, 5.8, 5.9 and GCC 3.4.6 on Sun Solaris 5.10.
On Linux:
- GCC 3.4.3, 4.0.1, 4.2.1, 4.2.4, 4.3.2.
- GCC 4.3.2 with C++0x extensions.
- GCC 4.1.1, 4.2.1 on 64 bit linux.
- Intel C++ 8.1, 9.0, 9.1 and 10.0
- QLogic PathScale(TM) Compiler Suite: Version 3.1
- Sun Compiler 5.9, 5.10 with stdcxx
On Windows:
- Several testers using Visual C++ 7.1, 8.0, 9.0 and 10.0
- Visual C++ 7.1 with Apache C++ Standard Library 4.2.x branch.
- Visual C++ 8.0 with STLport 5.1
- Visual C++ 8.0 with STLport 5.1 cross-compiling for Windows Mobile 5.0 Pocket PC SDK (ARMV4I).
- Intel 10.1, with Visual C++ 9 backend.
- Borland 5.9.3 and 6.10.0
- 64 bit Intel 10.1, with Visual C++ 9 backend.
- 64 bit Visual C++ 9.0.
- 64-bit Visual C++ 9.0 with Apache C++ Standard Library 4.2.x branch.
- Comeau C++ 4.3.10.1 beta 2, with Visual C++ 9 backend.

Acknowledgements

Beman Dawes, Eric Niebler, Rene Rivera, and Daniel James managed this release.

Version 1.36.0

Thu, 14 Aug 2008 12:00:00 GMT

New Libraries

Accumulators: Framework for incremental calculation, and collection of statistical accumulators, from Eric Niebler.
Exception: A library for transporting of arbitrary data in exception objects, and transporting of exceptions between threads, from Emil Dotchevski.
Units: Zero-overhead dimensional analysis and unit/quantity manipulation and conversion, from Matthias Schabel and Steven Watanabe
Unordered: Unordered associative containers, from Daniel James.

Updated Libraries

Asio:
- Added support for serial ports.
- Added support for UNIX domain sockets.
- Added support for raw sockets and ICMP.
- Added wrappers for POSIX stream-oriented file descriptors (excluding regular files).
- Added wrappers for Windows stream-oriented HANDLEs such as named pipes (requires HANDLEs that work with I/O completion ports).
- Added wrappers for Windows random-access HANDLEs such as files (requires HANDLEs that work with I/O completion ports).
- Added support for reactor-style operations (i.e. they report readiness but perform no I/O) using a new null_buffers type.
- Added an iterator type for bytewise traversal of buffer sequences.
- Added new read_until() and async_read_until() overloads that take a user-defined function object for locating message boundaries.
- Added an experimental two-lock queue (enabled by defining BOOST_ASIO_ENABLE_TWO_LOCK_QUEUE) that may provide better io_service scalability across many processors.
- Various fixes, performance improvements, and more complete coverage of the custom memory allocation support.
Assign: list_of() (and its variants) now has overloaded comparison operators. This allows you to write test code such as BOOST_CHECK_EQUAL( my_container, list_of(2)(3)(4)(5) );.
Circular Buffer:
- Default constructor now doesn't allocate memory, and sets the capacity of the buffer to 0
Foreach: BOOST_FOREACH macro for easily iterating over the elements of a sequence, from Eric Niebler.
- New BOOST_REVERSE_FOREACH macro for iterating over a sequence in reverse.
Function:
- Improved allocator support, from Emil Dotchevski.
Hash: Minor updates and fixes, for more info see the change log.
Interprocess:
- Added anonymous shared memory for UNIX systems.
- Fixed missing move semantics on managed memory classes.
- Added copy_on_write and open_read_only options for shared memory and mapped file managed classes.
- shared_ptr is movable and supports aliasing.
Intrusive:
- Added linear<> and cache_last<> options to singly linked lists.
- Added optimize_multikey<> option to unordered container hooks.
- Optimized unordered containers when store_hash option is used in the hook.
- Implementation changed to avoid explicit use of try-catch blocks and be compilable with exceptions disabled.
Math:
- Added new non-central Chi-Square, Beta, F and T distributions.
- Added Exponential Integral and Zeta special functions.
- Added Rounding, Truncation, and Unit-in-the-last-place functions.
- Added support for compile time powers of a runtime base.
- Added a few SSE2 based optimisations for the Lanczos approximations.
MPI:
- Added support for non-blocking operations in Python, from Andreas Klöckner.
- Added support for graph topologies.
Multi-index Containers: Minor additions and maintenance fixes. Consult the library release notes for further information.
PtrContainer: Support for a few more containers, and addition of insert iterators. For details see upgrading details.
Spirit: Integrated the "Classic" Spirit V1.8.x code base with Spirit V2, "The New Generation". See Change Log.
Thread:
- New generic lock and try_lock functions for locking multiple mutexes at once.
- Rvalue reference support for move semantics where the compilers supports it.
- A few bugs fixed and missing functions added (including the serious win32 condition variable bug).
- scoped_try_lock types are now backwards-compatible with Boost 1.34.0 and previous releases.
- Support for passing function arguments to the thread function by supplying additional arguments to the thread constructor.
- Backwards-compatibility overloads added for timed_lock and timed_wait functions to allow use of xtime for timeouts.
Wave:
- Wave V2.0 is a new major release introducing some breaking API changes, preventing it to be used with Boost versions earlier than V1.36.0. Mainly, the API and hook interface have been streamlined for more consistency.
- Fixed a couple of bugs, improved regression test system to include testing of the preporcessing hooks interface (for details see: Changelog).
Xpressive: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler.
- skip() for specifying which parts of the input sequence to ignore when matching it against a regex.
- regex_replace() accepts formatter objects and formatter expressions in addition to format strings.
- Range-based regex_replace() algorithm.
- Fix crash when semantic actions are placed in look-aheads, look-behinds or independent sub-expressions.

Compilers Tested

Boost's primary test compilers are:

GCC 4.01 on Mac OS X 10.4.10 with both Intel and Power PC
GCC 4.2.3 on Ubuntu Linux 8.04.1
HP C/aC++ B3910B A.06.17 on HP-UX 64-bit
Visual C++ 9.0 SP1 beta, 8.0 SP1, and 7.1, all on Windows XP SP-2

Boost's additional test compilers include:

GCC 4.2.1 on FreeBSD-7
GCC 4.1.2 on NetBSD
HP aCC on OS: HP-UX B.11.31 U ia64 and HP-UX B.11.31 9000/800 RISC
IBM XL C/C++ Enterprise Edition for AIX, V10.1.0.0, on AIX Version 5.3.0.40
Intel 9.1, 10.0, and 10.1, on Mac OS X 10.4.1
Compaq C++ V7.1-006 for Compaq Tru64 Unix on an OSF1 V5.1 platform.
Sun C++ 5.7, 5.8, 5.9 and GCC 3.4.6 on Sun Solaris 5.10.
On Linux:
- GCC 3.4.3, 4.0.1, 4.2.1, 4.3.0.
- GCC 4.3.0 with C++0x extensions.
- GCC 3.4.6, 4.1.1, 4.2.1 on 64 bit linux.
- Intel C++ 8.1, 9.0 and 9.1.
- QLogic PathScale(TM) Compiler Suite: Version 3.1
- pgCC 7.2-3 64-bit target on x86-64 Linux
On Windows:
- Intel 10.1, with Visual C++ 9 backend.
- Lots of tests on Visual C++ 7.1, 8.0, 9.0
- Visual C++ 7.1 with Apache C++ Standard Library 4.2.x branch.
- Visual C++ 8.0 with STLport 5.1
- Visual C++ 8.0 with STLport 5.1 cross-compiling for Windows Mobile 5.0 Pocket PC SDK (ARMV4I).
- Borland 5.6.4, 5.8.2, 5.9.3
- 64 bit Intel 10.1, with Visual C++ 9 backend.
- 64 bit Visual C++ 9.
- Comeau C++ 4.3.10.1 beta 2, with Visual C++ 9 backend.

Acknowledgements

Beman Dawes, Rene Rivera, and Daniel James managed this release.

Version 1.35.0

Sat, 29 Mar 2008 12:00:00 GMT

New Libraries

Asio: Portable networking, including sockets, timers, hostname resolution and socket iostreams, from Chris Kohlhoff.
Bimap: Boost.Bimap is a bidirectional maps library for C++. With Boost.Bimap you can create associative containers in which both types can be used as key, from Matias Capeletto.
Circular Buffer: STL compliant container also known as ring or cyclic buffer, from Jan Gaspar.
Function Types: Boost.FunctionTypes provides functionality to classify, decompose and synthesize function, function pointer, function reference and pointer to member types. From Tobias Schwinger.
Fusion: Library for working with tuples, including various containers, algorithms, etc. From Joel de Guzman, Dan Marsden and Tobias Schwinger.
GIL: Generic Image Library, from Lubomir Bourdev and Hailin Jin.
Interprocess: Shared memory, memory mapped files, process-shared mutexes, condition variables, containers and allocators, from Ion Gaztañaga.
Intrusive: Intrusive containers and algorithms, from Ion Gaztañaga.
Math/Special Functions: A wide selection of mathematical special functions from John Maddock, Paul Bristow, Hubert Holin and Xiaogang Zhang.
Math/Statistical Distributions: A wide selection of univariate statistical distributions and functions that operate on them from John Maddock and Paul Bristow
MPI: Message Passing Interface library, for use in distributed-memory parallel application programming, from Douglas Gregor and Matthias Troyer.
System: Operating system support, including the diagnostics support that will be part of the C++0x standard library, from Beman Dawes.

Updated Libraries

Graph: Generic graph components and algorithms. Highlights:
- kolmogorov_max_flow, from Stephan Diederich as part of the 2006 Google Summer of Code.
- read_dimacs_max_flow and write_dimacs_max_flow for max-flow problems, from Stephan Diederich.
- read_graphml and write_graphml for GraphML input/output, from Tiago de Paula Peixoto.
- minimum_cycle_ratio and maximum_cycle_ratio, from Dmitry Bufistov and Andrey Parfenov.
- boyer_myrvold_planarity_test, along with a suite of algorithms for planar graphs, from Aaron Windsor.
- LEDA Adaptor improvements, from Jens Müller.
Hash: A TR1 hash function object, from Daniel James. Highlights:
- Support for long long, std::complex.
- Improved the algorithm for hashing floating point numbers.
- A few bug and warning fixes.
Iostreams: Framework for defining streams, stream buffers and i/o filters, from Jonathan Turkanis. Highlights:
- Clarified the semantics of close(). This fixes several bugs but will break some existing code. See Release Notes for details.
- Numerous other bug fixes and optimizations.
Multi Array:
- Added "dimensionality" compile-time constante to the MultiArray concept.
- For greater control over error situations, uses of C++ assert have been replaced with BOOST_ASSERT.
- Fixed a bug with simultaneous resizing and reindexing.
Multi-index Containers:
- New global_fun predefined key extractor.
- Added iterator_to facility.
- Included support for non-standard allocators such as those of Boost.Interprocess, which makes multi_index_containers placeable in shared memory.
- New versions of modify and modify_key with rollback, as described in the tutorial.
- A number of optimizations and minor improvements have also been included. For a complete list of changes, see the library release notes.
Serialization: Boost.Serialization has been updated with optimizations for dense arrays.
Thread:
- The Thread library has been updated to be more in line with the C++0x working draft.
- Instances of boost::thread and of the various lock types are now movable.
- Threads can be interrupted at interruption points.
- Condition variables can now be used with any type that implements the Lockable concept, through the use of boost::condition_variable_any (boost::condition is a typedef to boost::condition_variable_any, provided for backwards compatibility). boost::condition_variable is provided as an optimization, and will only work with boost::unique_lock<boost::mutex> (boost::mutex::scoped_lock).
- Thread IDs are separated from boost::thread, so a thread can obtain it's own ID (using boost::this_thread::get_id()), and IDs can be used as keys in associative containers, as they have the full set of comparison operators.
- Timeouts are now implemented using the Boost DateTime library, through a typedef boost::system_time for absolute timeouts, and with support for relative timeouts in many cases. boost::xtime is supported for backwards compatibility only.
- Locks are implemented as publicly accessible templates boost::lock_guard, boost::unique_lock, boost::shared_lock, and boost::upgrade_lock, which are templated on the type of the mutex. The Lockable concept has been extended to include publicly available lock() and unlock() member functions, which are used by the lock types.
- boost::try_mutex has been removed, and the functionality subsumed into boost::mutex. boost::try_mutex is left as a typedef, but is no longer a separate class.
- boost::recursive_try_mutex has been removed, and the functionality subsumed into boost::recursive_mutex. boost::recursive_try_mutex is left as a typedef, but is no longer a separate class.
- boost::detail::thread::lock_ops has been removed. Code that relies on the lock_ops implementation detail will no longer work, as this has been removed, as it is no longer necessary now that mutex types now have public lock() and unlock() member functions.
- scoped_lock constructors with a second parameter of type bool are no longer provided. With previous boost releases, boost::mutex::scoped_lock some_lock(some_mutex,false); could be used to create a lock object that was associated with a mutex, but did not lock it on construction. This facility has now been replaced with the constructor that takes a boost::defer_lock_type as the second parameter: boost::mutex::scoped_lock some_lock(some_mutex,boost::defer_lock);
- The broken boost::read_write_mutex has been replaced with boost::shared_mutex.
Wave: Standards conformant implementation of the mandated C99/C++ preprocessor functionality packed behind an easy to use iterator interface, from Hartmut Kaiser. Highlights:
- Added the possibility to continue the preprocessing after an error occured.
- Added the macro introspection API to the wave::context object.
- Added threading support to the library.
- Improved the overall performance by upto 30%.
- Changed and unified preprocessor hook interface (this is an interface breaking change!), added several new preprocessor hook functions.
- Added serialization support.
- Added new examples (for instance: Hannibal - a partial C++ parser, by Danny Havenith).
- Added a new lexical analyzer based on Ben Hansons Lexertl library.
- Fixed a large number of other bugs and problems.
Xpressive: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler. Highlights:
- Added semantic actions to static regexes. A semantic action is code that executes when part of a regular expression matches.
- Added custom assertions to static regexes. A custom assertion is a Boolean predicate that can participate in the regex match.
- Added named regexes for embedding a static or dynamic regex into a dynamic regex. This can be used to create dynamic regex grammars.
- Added named captures to dynamic regexes, like Perl.

Supported Compilers

The following compilers are officially supported in this release:

HP aC++ A.06.14 on HP-UX
Darwin GCC 4.01.
GNU GCC up to version 4.2.1, on Linux and Solaris.
Intel C++ 9.1 on Linux.
Intel C++ 10.1 on Windows.
Microsoft Visual C++ 7.1 and 8 on Windows (Visual Sudio .NET 2003 and 2005).

In addition the following compilers should be well supported, but weren't part of our release criteria for 1.35:

IBM Visual Age 9.0 on AIX.
Intel C++ 10 and later on Linux.
GNU GCC 4.3 and later on Linux and Solaris.
Microsoft Visual C++ 9 (Visual Studio .NET 2008).

Acknowledgements

Beman Dawes managed this release.

Version 1.34.1

Tue, 24 Jul 2007 12:00:00 GMT

This is a bug fix release addressing many problems with the 1.34.0 release. It is a recommended upgrade for all users of Boost 1.34.0. For a complete list of fixes see Boost Trac.

Supported Compilers

New in this release is improved support for the IBM XL C/C++ compiler.

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. New in this release The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

Apple GCC 4.0.1 on Mac OS X.
Borland C++ 5.8.2 on Windows.
GNU C++
- 3.2.x., 3.3.x, 3.4.x, 4.0.x, 4.1.x on Linux
- 4.1.x on Solaris
- 3.4.x on Windows
HP C++ for Tru64 UNIX 7.1.
HP aC++ A.06.14.
Intel C++ 9.1 on Windows, 9.0 on Linux.
Metrowerks CodeWarrior 9.4 on Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE.
Sun Studio 11 on Solaris.

Acknowledgements

Thomas Witt managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Kim Barrett consolidating Boost.Iostreams changes from various branches and Rene Rivera for general build and installation support.

Version 1.34.0

Sat, 12 May 2007 12:00:00 GMT

New Libraries

Foreach Library: BOOST_FOREACH macro for easily iterating over the elements of a sequence, from Eric Niebler.
Statechart Library: Arbitrarily complex finite state machines can be implemented in easily readable and maintainable C++ code, from Andreas Huber.
TR1 Library: An implementation of the C++ Technical Report on Standard Library Extensions, from John Maddock. This library does not itself implement the TR1 components, rather it's a thin wrapper that will include your standard library's TR1 implementation (if it has one), otherwise it will include the Boost Library equivalents, and import them into namespace std::tr1. Highlights include: Reference Wrappers, Smart Pointers, result_of, Function Object Binders, Polymorphic function wrappers, Type Traits, Random Number Generators and Distributions, Tuples, Fixed Size Array, Hash Function Objects, Regular Expressions, and Complex Number Additional Algorithms.
Typeof Library: Typeof operator emulation, from Arkadiy Vertleyb and Peder Holt.
Xpressive Library: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler.

Updated Libraries

Assign Library:
- Support for ptr_map<key,T> via the new function ptr_map_insert()
- Support for initialization of Pointer Containers when the containers hold pointers to an abstract base class.
Date_time library:
- Support for new US/Canada timezone rules and other bug fixes. See Change History for details.
Filesystem Library: Major upgrade in preparation for submission to the C++ Standards Committee for TR2. Changes include:
- Internationalization, provided by class templates basic_path, basic_filesystem_error, basic_directory_iterator, and basic_directory_entry.
- Simplification of the path interface by eliminating special constructors to identify native formats.
- Rationalization of predicate function design, including the addition of several new functions.
- Clearer specification by reference to POSIX, the ISO/IEEE Single Unix Standard, with provisions for Windows and other operating systems.
- Preservation of existing user code whenever possible.
- More efficient directory iteration.
- Addition of a recursive directory iterator.
Function Library: Boost.Function now implements a small buffer optimization, which can drastically improve the performance when copying or constructing Boost.Function objects storing small function objects. For instance, bind(&X:foo, &x, _1, _2) requires no heap allocation when placed into a Boost.Function object.
Functional/Hash Library:
- Use declarations for standard classes, so that the library doesn't need to include all of their headers
- Deprecated the <boost/functionalhash*.hpp> headers.
- Add support for the BOOST_HASH_NO_EXTENSIONS macro, which disables the extensions to TR1
- Minor improvements to the hash functions for floating point numbers.
Graph Library:
- edmonds_maximum_cardinality_matching, from Aaron Windsor.
- lengauer_tarjan_dominator_tree, from JongSoo Park.
- compressed_sparse_row_graph, from Jeremiah Willcock and Douglas Gregor of Indiana University.
- sorted_erdos_renyi_iterator, from Jeremiah Willcock of Indiana University.
- biconnected_components now supports a visitor and named parameters, from Janusz Piwowarski.
- adjacency_matrix now models the Bidirectional Graph concept.
- dijkstra_shortest_paths now calls vis.initialize_vertex for each vertex during initialization.
- Note: the name of the compiled library for the GraphViz reader has changed to boost_graph (from bgl-viz) to match Boost conventions.
- See the complete revision history for more information.
MultiArray Library: Boost.MultiArray now by default provides range-checking for operator[]. Range checking can be disabled by defining the macro BOOST_DISABLE_ASSERTS before including multi_array.hpp. A bug in multi_array::resize() related to storage orders was fixed.
Multi-index Containers Library:
- New random access indices.
- Non key-based indices feature new rearrange facilities.
- This version also includes a number of optimizations and usage improvements. For a complete list of changes, see the library release notes.
Optional Library:
- boost::none_t and boost::none now added to Optional's documentation
- Relational operators now directly support arguments of type 'T' and 'none_t'
- operator->() now also works with reference types.
- Helper functions make_optional(val), make_optional(cond,val) and get_optional_value_or(opt,alternative_value) added.
- Constructor taking a boolean condition (as well as a value) added.
- Member function get_value_or(alternative_value) added.
- Incompatbility bug with mpl::apply<> fixed.
- Converting assignment bug with uninitialized lvalues fixed.
Parameter Library:
- Every ArgumentPack is now a valid MPL Forward Sequence.
- Support for unnamed arguments (those whose keyword is deduced from their types) is added.
- Support for named and unnamed template arguments is added.
- New overload generation macros solve the forwarding problem directly.
- See also the Python library changes, below.
Pointer Container Library:
- Support for serialization via Boost.Serialization.
- Exceptions can be disabled by defining the macro BOOST_PTR_CONTAINER_NO_EXCEPTIONS before including any header. This macro is defined by default if BOOST_NO_EXCEPTIONS is defined.
- Additional std::auto_ptr<T> overloads added s.t. one can also pass std::auto_ptr<T> instead of only T* arguments to member functions.
- transfer() now has weaker requirements s.t. one can transfer objects from ptr_container<Derived> to ptr_container<Base>,
Python Library:
- Boost.Python now automatically appends C++ signatures to docstrings. The new docstring_options.hpp header is available to control the content of docstrings.
- stl_input_iterator, for turning a Python iterable object into an STL input iterator, from Eric Niebler.
- Support for void* conversions is added.
- Integrated support for wrapping C++ functions built with the parameter library; keyword names are automatically known to docsstrings.
- Enhancements to the API for better embedding support (boost::python::import(), boost::python::exec(), and boost::python::exec_file()).
Signals Library: More improvements to signal invocation performance from Robert Zeh.
Smart Pointers Library:
- Allocator support as proposed in N1851 (162 Kb PDF).
- pointer_cast and pointer_to_other utilities to allow pointer-independent code, from Ion Gaztanaga.
String Algorithm Library:
- lexicographical_compare
- join
- New comparison predicates is_less, is_not_greater.
- Negative indexes support (like Perl) in various algorihtms (*_head/tail, *_nth).
Wave Library:
- Wave now correctly recognizes pp-number tokens as mandated by the C++ Standard, which are converted to C++ tokens right before they are returned from the library.
- Several new preprocessing hooks have been added. For a complete description please refer to the related documentation page: The Context Policy.
- Shared library (dll) support has been added for the generated Wave libraries.
- The overall error handling has been improved. It is now possible to recover and continue after an error or a warning was issued.
- Support for optional comment and/or full whitespace preservation in the generated output stream has been added.
- The Wave library now performs automatic include guard detection to avoid accessing header files more than once, if appropriate.
- Full interactive mode has been added to the Wave tool. Now the Wave tool can be used just like Python or Perl for instance to interactively try out your BOOST_PP macros. Additionally it is now possible to load and save the current state of an interactive session (macro tables et.al.).
- The overall performance has been improved by upto 40-60%, depending on the concrete files to process.
- Support for new pragmas has been added allowing to control certain library features from inside the preprocessed sources (partial output redirection, control of generated whitespace and #line directives).
- Optional support for #pragma message "..." has been added.
- This version also includes a number of bug fixes and usage improvements. For a complete list of changes, see the libraries change log.

Supported Compilers

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

Apple GCC 4.0.1 on Mac OS X.
Borland C++ 5.8.2 on Windows.
GNU C++
- 3.2.x., 3.3.x, 3.4.x, 4.0.x, 4.1.x on Linux
- 4.1.x on Solaris
- 3.4.x on Windows
HP aC++ A.06.14.
Intel C++ 9.1 on Windows, 9.0 on Linux.
Metrowerks CodeWarrior 9.4 on Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE.
Sun Studio 11 on Solaris.

Acknowledgements

Thomas Witt managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Vladimir Prus for making Boost.Build version 2 a reality, David Abrahams for authoring a new getting started guide and Greg D. for answering countless questions.

Version 1.33.1

Tue, 5 Dec 2006 12:00:00 GMT

Updated Libraries

Any Library: Cast to reference types introduced in 1.33.0 is now documented on any_cast documentation page.
Bind Library: Bind expressions now support comparisons and negation. Example: bind(&X::name, _1) < bind(&X::name, _2).
Config Library: Don't undef BOOST_LIB_TOOLSET after use.
Boost.Python:
- The build now assumes Python 2.4 by default, rather than 2.2
- Support Python that's built without Unicode support
- Support for wrapping classes with overloaded address-of (&) operators
Smart Pointer Library: Fixed problems under Metrowerks CodeWarrior on PowerPC (Mac OS X) with inlining on, GNU GCC on PowerPC 64.
Regex Library: Fixed the supplied makefiles, and other small compiler specific changes. Refer to the regex history page for more information on these and other small changes.
Iostreams Library: Improved the interface for accessing a chain's components, added is_open members to the file and file descriptor devices, fixed memory-mapped files on Windows, and made minor changes to the documentation.
Boost.Python:
- Added support for docstrings on nonstatic properties.
- We now export the client-provided docstrings for init<optional<> > and XXX_FUNCTION_OVERLOADS() for only the last overload.
- Support for Embedded VC++ 4 and GCC-3.3 on MacOS added
- Introduced better support for rvalue from-python conversions of shared_ptr.
- Support for exposing vector<T*> with the indexing suite.
- updated visual studio project build file.
- Added search feature to the index page.
Functional/Hash Library: Fixed the points example.
Multi-index Containers Library: Fixed a problem with multithreaded code, and other minor changes. Refer to the library release notes for further details.
Graph Library:
- Fixed a problem with the relaxed heap on x86 Linux (fixes bug in dijkstra_shortest_paths).
- Fixed problems with cuthill_mckee_ordering and king_ordering producing no results.
- Added color_map parameter to dijkstra_shortest_paths.
Signals Library: Fixed problems with the use of Signals across shared library boundaries.
Thread library: read_write_mutex has been removed due to problems with deadlocks.
Wave library (V1.2.1): Fixed a couple of problems, refer to the change log for further details.

Supported Compilers

Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results.

New for this release: Support for building with the newest STLport-5.0 was added. The support includes building with MinGW Runtime 3.8 plus STLport-5.0 improved to support wide character operations. Apple GCC 4.0, HP Tru64 C++, and Microsoft Visual C++ 8.0 are supported platforms. We have added an experimental autoconf-like configure script for Unix-like systems: run configure --help for more information.

Apple GCC 3.3, 4.0 on Mac OS X.
Borland C++ 5.6.4 on Windows.
GNU C++ 2.95.3 (with and without STLport), 3.2.x., 3.3.x, 3.4.x, 4.0.x on Windows, Linux and Solaris.
HP C++ for Tru64 UNIX 7.1.
Intel C++ 8.1, 9.0 on Windows, Linux.
Metrowerks CodeWarrior 8.3, 9.4, 9.5 on Mac OS X and Windows.
Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE.

Acknowledgements

Douglas Gregor managed this release.

A great number of people contributed their time and expertise to make this release possible. Special thanks go to Aleksey Gurtovoy and Misha Bergal, who managed to keep the regression testing system working throughout the release process; David Abrahams, Beman Dawes, Aleksey Gurtovoy, Bronek Kozicki, Rene Rivera and Jonathan Turkanis for greatly improving the quality of this release; Rene Rivera for the new Boost web page design; and Zoltan "cad" Juhasz for the new Boost logo.