1.66.0:
New Libraries
Beast:
Portable HTTP, WebSocket, and network operations using only C++11 and Boost.Asio, from Vinnie Falco.
CallableTraits:
A spiritual successor to Boost.FunctionTypes, Boost.CallableTraits is a header-only C++11 library for the compile-time inspection and manipulation of all 'callable' types. Additional support for C++17 features, from Barrett Adair.
Mp11:
A C++11 metaprogramming library, from Peter Dimov.
New Libraries
Process library by Klemens D. Morgenstern, that provides cross platorm ways to allows you to:
* create child processes
* setup streams for child processes
* communicate with child processes through streams (synchronously or asynchronously)
* wait for processes to exit (synchronously or asynchronously)
* terminate processes
Atomic:
* Added the static constant atomic<T>::is_always_lock_free for conformance with C++17. The constant indicates that the given specialization always provides lock-free implementation of atomic operations.
* Improved support of Oracle Studio on x86 targets.
Container:
* Fixed bugs
Context:
* 11687 Xcode (Apple clang) and thread_local
* 12114 context does not preserve fpu context on ios arm64 devices (fixed for other architecturs too)
* 12411 fpu registers not preserved with O2 optimizations in Visual Studio (fixed for other architecturs too)
* 12551 building boost on arm64 causes error: unknown directive
* reduced signatur for ontop-functions
* unit-test for private fcontext-API
* performance-test for ucontext and fcontext fixed
Fiber:
* unbounded_channel and bounded_channel marked as deprecated
* new classes buffered_channel and unbuffered_channel
* performance improved
Fusion:
* Fixed fusion::vector buggy constructors (Thanks to Lee Clagett).
* BOOST_FUSION_ADAPT* and BOOST_FUSION_DEFINE* now allow empty structures. (6592)
* BOOST_FUSION_DEFINE* allows move constructor and assignment. (10099)
* Adaptor for std::array (Thanks to Mateusz Łoskot). (8241)
* Fixed returning temporary variable warnings on MSVC.
Geometry:
* Intersection: take care that output is valid (work in progres, not yet finished - but more is valid)
* 12289 Avoid warning/compilation error for std::cout
* 12412 Invalid result of covered_by() with geographic Points and Boxes
* 12413 rtree::remove() not working properly with geographic Points
Hash:
* Fixed some warnings.
Interprocess:
* Fixed bugs
Intrusive:
* Fixed bugs
Lexical Cast:
* Fixed issue found by -fsanitize=undefined 21
Log:
* Removed the previously deprecated type_info_wrapper.
* Added a way to access the current file name from the text file sink backend. The file name can be obtained with the get_current_file_name method.
* Bug fixes
Metaparse:
* Improved the implementation of BOOST_METAPARSE_STRING
Move:
* Improved experimental adaptive sort algorithm performance
* Activate BOOST_MOVE_FORCEINLINE
Optional:
* Added two new in-place constructors. They work similarly to emplace() functions: they initialize the contained value by perfect-forwarding the obtained arguments. One constructor always initializes the contained value, the other based on a boolean condition.
* Syntax o = {} now correctly un-initializes an optional, just like in std::optional.
* Fixed optional<optional<T>&> initialization. (12203)
* Optional constructors are sfinae-friendly. This fixes interaction with std::tuple. (12563)
Phoenix:
* Most of modules now support C++11 variadic templates.
* Fixed type deduction failure with result type.
* Suppress unused warnings.
* Fixed too few arguments error on binary math functions.
* Added workarounds for older compiler.
Python:
* Added (basic) support for C++11 (std::shared_ptr, std::unique_ptr)
* Incorporated an extension API to wrap NumPy
* Removed obsolete bits and pieces
Test:
* Boost.test v3.4 see the Change log section for more details.
* New feature: per_element and lexicographic modifiers of BOOST_TEST can also be applied to string comparison
* Breaking change: colons that appear in test case names are replaced with underscores
* Bug fixes
TypeIndex:
* Added runtime_cast to the library as an emulation of dynamic_cast. Thanks to Chris Glover for the implementation. See runtime_cast reference for more info.
* Internals of the CTTI were made more platform independant, due to change of the std::size_t type to unsigned int.
Units:
* Fix inspection warnings
* updated physico-chemical constants to CODATA 2014 values
* define biot correctly as 10 Ampere
Unordered:
* Fix an exception safety issue in assignment.
* Use std::allocator_traits where available, and support modern style rebind (12459).
* Add some allocator aware constructors.
* Use the hint iterator in emplace_hint.
* Fixed some warnings.
New Libraries
-------------
Fiber:
* Framework for userland-threads/fibers, from Oliver Kowalke.
QVM:
* Boost QVM is a generic library for working with quaternions, vectors and matrices of static size with the emphasis on 2, 3 and 4-dimensional operations needed in graphics, video games and simulation applications, from Emil Dotchevski.
Updated Libraries
-----------------
Atomic:
* Improved support for Oracle Studio and SPARC. The library now provides native atomic operations on SPARCv8+.
Chrono:
* 11330 boost::chrono::duration default constructor doesn't initialize rep_
* 11618 Chrono IO V2 doc ios_state.hpp does not exist
* 11631 boost chrono io v2 does not let you support custom clocks
Circular Buffer:
* Debug implementation is no longer used by default in debug mode. Debug implementation does not have the same thread safety guarantees as the normal (release) implementation or other containers. As a result of this change BOOST_CB_DISABLE_DEBUG macro is no longer used. BOOST_CB_ENABLE_DEBUG=1 should be defined instead to enable debug support.
Container:
* Fixed bugs:
Trac 9481: "Minor comment typo in Boost.Container".
Trac 9689: "Add piecewise_construct to boost::container".
Trac 11170: "Doc slip for index_of".
Trac 11802: "Incorrect ordering after using insert() with ordered_range_t on a flat_multiset with a non-default sort order".
Trac 12117: "flat_set constructor with ordered_unique_range".
Trac 12177: "vector::priv_merge uses unqualified uintptr_t".
Trac 12183: "GCC 6.1 thinks boost::container::string violates strict aliasing".
Trac 12256: "set<std::pair<int,int>>::insert cause compilation error in debug configuration in Visual Studio 2012".
Trac 12273: "static_vector max_size() and capacity() should be constant expressions". Added constant static_vector<>::static_capacity to use the configured capacity in constant expressions.
Trac 12286: "PMR flat_map from Boost Container does not compile".
Trac 12296: "{deque,string} combine for a memory leak".
Trac 12319: "flat_set should be nothrow move constructible".
* Revised noexcept expressions of default and move constructors in all containers.
* Implemented C++17 insert_or_assign/try_emplace for map and flat_map.
* Implemented C++17 extract/insert(node) for map, multimap, set, multiset.
Context:
* 12215 all stack corrupted on Windows using default fixedsize_stack
* 12242 build issue with Intel C++ compiler for MacOS
* fix stack unwinding for execution_context_v1
Coroutine:
* deprecated in favour of Coroutine2
Coroutine2:
* 12221 coroutine<>::push_type function starts without pushing
* do not swallow exceptions thrown at coroutine<>::push_type construction
DLL:
* Mangled symbols and classes loading was implemented by Klemens Morgenstern
* Suppress a 'unused parameter' warning in detail::aggressive_ptr_cast pull-request 9
* Allowed to query non-existant sections pull-request 32
* More tests and docs
Functional/Forward:
* Fix C++11 compile error.
Interprocess:
* Fixed bug GitHub Pull 27 ("Fix undefined behavior").
Intrusive:
* Fixed bugs:
Boost Trac 11476: has_member_function_callable_with.hpp is massively broken with BOOST_NO_CXX11_DECLTYPE
Boost Trac 11994: Support intrusive container key extractors that return the key by value
Boost Trac 12184: clang -Wdocumentation warning
Boost Trac 12190: Intrusive List + Flat Map combination crashes
Boost Trac 12229: intrusive::unordered_set<T>::rehash() broken
Boost Trac 12245: bstree uses a shared static size_traits for constant_time_size<false>
Lexical Cast:
* Fix incorrect static assertion 11759
Log:
* New features:
Added new tools for inter-process logging on a local machine. The implementation includes a resource name wrapper, an inter-process message queue and a sink backend.
Added a new character decorator called max_size_decor. The new decorator allows to limit the output of its adopted formatter up to the specified length.
* Bug fixes:
Fixed that logging streams could retain formatting settings across different log records. (12178)
See changelog for more details.
Math:
* New Features:
Enabled all the special function code to work correctly with types whose precision can change at runtime: for example type mpfr_float from Boost.Multiprecision.
* Patches:
Fix tgamma_delta_ratio for cases where the delta is small compared to the base.
Fix misc GCC-4.4 test failures.
Optional:
* Fixed Trac 12179.
Phoenix:
* Fix compilation for MSVC 10. pull-request 18
* Remove unused preprocessed files. pull-request 28
* Fix erroneous doc for switch_ statement. 8156
* Cleanup config unordered. pull-request 33
* Suppress unused placeholder warnings.
* Fix too few arguments error on binary math functions.
Regex:
* Fix buffer over-run error when parsing certain invalid regexes, see 12222.
* Fix detection of ICU in library build, see 12152.
* Fix bug in case sensitivity change, see 11940.
* Allow types wider than int in \x{} expressions (for char32_t etc), see 11988.
Test:
* Boost.test v3.3 see the Change log section for more details.
* New features
dataset driven test-cases have now a unique name and all sample tests of a dataset live inside the same test suite
Boost.test learned a new command line switch, --logger for setting a test logger as well as its parameter in one command
Boost.test learned to have several loggers at the same time, each of which having their own log level and output stream
Boost.test learned a new logger, JUNIT, that is able to output Junit/xUnit compatible streams
It is now possible to specify several test filters through the environment variable BOOST_TEST_RUN_FILTERS
* Bug fixes
Trac tickets 8707, 8834, 11128, 11845, 11859, 12024,
Trac tickets 12093, 12103, 12224, 12241, 12257, 12378
Thread:
* 12102 condition_variable_fwd.hpp fails to compile when BOOST_THREAD_PROVIDES_INTERRUPTIONS is disabled
* 12120 Performance improvement in thread/barrier.hpp
* 12146 make_exceptional_future is not mentioned in the docs
* 12202 shared_lock should be in shared_mutex header
* 12371 boost thread/future.hpp fails to build
* 88 fix typos in boost::upgrade_lock
* 89 fix a bug in upgrade_to_unique_lock<>::operator=()
* 90 fix a bug in try_lock_wrapper<>::operator=()
* 91 Add shared_lock_guard to the included lock types
* 92 Fixed compilation with MSVC-8.
* 93 Fix variable shadowing warnings (Clang)
* 94 fix bugs in boost::barrier
* 95 fix a mistake in boost::completion_latch
* 96 rename async_func.hpp to invoker.hpp.
* 97 fix a mistake in sync_timed_queue<>::pull_until()
TypeIndex:
* ctti_type_index was made constexpr in C++14. Now it is possible to retrieve actual name of the type as const char* at compile time. So we can do a lot of interesting things at compile time: check namespace of a type, sort types according to their lexical representation, check that type is a template type and so on... A few examples were provided.
* Fixed issue with noexcept on MSVC in type names and issue with space in type name (pulled from klemens-morgenstern/develop)
* Fixed typos pull-request 7
* Improved CI testing
Unordered:
* Remove use of deprecated boost::iterator.
* Fixed an exception safety issue in assignment of unordered_multiset and unordered_multimap.
* See the changelog for more details.
Variant:
* Fixed variant construction from classes derived from variant 7120, 10278, 12155
* Variant constructors and assignment operators now do not participate in overload resolutions if variant can not hold the input type 5871, 11602
* Fixed the issue with implicit conversion operator in C++11 8555
* Fixed comparisons when variant holds non-const reference 11751
* Fixed noexcept for variant's move-assignment 11696
* Fixed double quotes in includes 12057
* Dropped BOOST_VARIANT_NO_REFERENCE_SUPPORT macro and dropped support for compilers without SFINAE 12250
* Suppress implicit instantiation of MPL end iterator
* Multiple minor fixes (typos, missing includes)
New Libraries:
--------------
Compute:
Parallel/GPU-computing library
DLL:
Library for comfortable work with DLL and DSO. Library provides a portable across platforms way to:
* load libraries
* import any native functions and variables
* make alias names for C++ mangled functions and symbols
* query libraries for sections and exported symbols
* self loading and self querying
* getting program and module location by exported symbol
Hana:
A modern C++ metaprogramming library. It provides high level algorithms to manipulate heterogeneous sequences, allows writing type-level computations with a natural syntax, provides tools to introspect user-defined types and much more.
Metaparse:
A library for generating compile time parsers parsing embedded DSL code as part of the C++ compilation process. The library is similar to Spirit, however while parsers built with Spirit parse at run-time, parsers built with Metaparse parse at compile-time.
New Libraries
VMD:
Variadic Macro Data library, from Edward Diener.
Updated Libraries
Atomic:
* Enforced proper alignment of atomic<> storage. This should fix possible issues on platforms that support atomic operations on data units larger than the native word size. This may also change binary layout of user's data structures that have atomic<> members.
* Fixed compilation for PowerPC with IBM XL C++ compiler. Corrected memory barriers in PowerPC assembler.
* Fixed compilation with MSVC-8 for ARM.
* Fixed compilation with gcc 4.4 for x86-64, when 128-bit atomic operations were used. (10994)
* Optimized some gcc assembler blocks for x86/x86-64 to reduce the number of used registers. This may require binutils 2.10 or later.
Chrono - 2.0.5:
Fixes:
* 10778 VC14 CTP4 Atomic don't compile with boost::chrono durations which are not TriviallyCopyable
* 10840 Missing std:: qualifier for puts call in test_7868.cpp
* 10851 Missing std:: qualifier for puts call in time_point_output.cpp
* 10893 Minor doc typo in Boost.Chrono
* 10992 Chrono IO state savers inconsistent with Boost.IO state savers
* 10995 duration_put::put_value truncates fractional part
* 11006 Impossible to instantiate time_fmt_io_saver due to several errors.
* 11012 chrono_io v2 fail to compile with boost::chrono::duration< boost::rational<int> >
Container:
* Implemented Polymorphic Memory Resources.
* Add more BOOST_ASSERT checks to test preconditions in some operations (like pop_back, pop_front, back, front, etc.)
* Added C++11 back/front operations to basic_string.
Fixed bugs:
* Trac 11627: "small_vector<T,n>::swap() appears to be broken".
* Trac 11628: "small_vector<int,n> iterates over elements in destructor".
* Trac 11697: "Wrong initialization order in tuple copy-constructor".
* Trac 11698: "Missing return statement in static_storage_allocator".
* GitHub 29: Doc fixes for flap_map complexity requirements.
* GitHub 31: DL_SIZE_IMPL also dereference addr.
Context:
* 11603 typo in PPC32/MACH-O asm
* support for CYGWIN
Core:
* In symbol demangling tools, added support for gabi++ ABI implementation used in Android NDK.
* Added a new enable_if_has_type tool for performing SFINAE checks for presence of a nested type.
more...
New Libraries
Convert:
An extendible and configurable type-conversion framework, from Vladimir Batov.
Coroutine2:
(C++14) Coroutine library, from Oliver Kowalke.
Updated Libraries...
* New Libraries:
- Endian: Types and conversion functions for correct byte ordering and more regardless of processor endianness.
- Sort: Includes spreadsort, a general-case hybrid radix sort that is faster than O(n*log(n))
* Updated Libraries:
Updated Libraries
Any:
RTTI is not required any more (TypeIndex library is used for RTTI emulation)
Fixed 8958
Asio:
Fixed the kqueue reactor so that it works on FreeBSD.
Fixed an issue in the kqueue reactor which resulted in spinning when using serial ports on Mac OS.
Fixed kqueue reactor support for read-only file descriptors.
Fixed a compile error when using the /dev/poll reactor.
Changed the Windows backend to use WSASocketW, as WSASocketA has been deprecated.
Fixed some warnings reported by Visual C++ 2013.
Fixed integer type used in the WinRT version of the byte-order conversion functions.
Changed documentation to indicate that use_future and spawn() are not made available when including the asio.hpp convenience header.
Explicitly marked asio::strand as deprecated. Use asio::io_service::strand instead.
Circular Buffer:
Fixed some warnings and move_if_noexcept from Boost.Move is used
Config:
BOOST_HAS_PRAGMA_DETECT_MISMATCH macro was added
Container:
Added support for initializer_list.
Fixed double destruction bugs in vector and backward expansion capable allocators.
Coroutine:
optionally register stacks with valgrind
10386 MSVC link error in asymmetric_coroutine.hpp: symbol already defined
10536 call to 'begin(...pull_coroutine< R > & c)' is ambiguous
Flyweight:
Added serialization support via Boost Serialization.
flyweight default constructor was made explicit in Boost 1.56, which introduces a regression in some initialization scenarios. The former non-explicit default constructor has been restored
More...
Modularization
Boost version control has migrated to a system using git submodules. This shouldn't make too much of a difference to users, although the directory structure is now a bit different.
Parts of some libraries have been moved into different modules, and several new modules have been extracted from existing code. All header paths should remain the same. The new modules are:
Assert:
Customizable assert macros. Maintained by Peter Dimov.
Core:
Core utilities used by other libraries, with minimal dependencies. Maintained by Peter Dimov, Glen Fernandes and Andrey Semashev.
Lexical_Cast:
General literal text conversions, such as an int represented a string, or vice-versa, from Kevlin Henney.
Throw_Exception:
A common infrastructure for throwing exceptions from Boost libraries, from Emil Dotchevski.
Winapi:
Windows API declarations without <windows.h>, for internal Boost use.
New Libraries
Align:
Memory alignment functions, allocators, and adaptors, from Glen Fernandes.
Type_Index:
Runtime/Compile time copyable type info, from Antony Polukhin.
Support was removed from Config for some very old versions of compilers. The new minimum requirements are:
Digitial Mars 8.41
GCC 3.3
Intel 6.0
Visual C++ 7.1
Other compilers are currently unchanged, but we are considering removing support for some other old compilers. Candidates for removal are:
Metroworks C++ (i.e. codewarrior)
SunPro 5.7 and earlier
Borland C++ Builder 2006 (5.82) and earlier
If you're using any of these, please let us know on the mailing lists. We will take into account any feedback received before making a decision.
New Libraries:
Atomic:
C++11-style atomic<>, from Helge Bahmann, maintained by Tim Blechmann.
Coroutine:
Coroutine library, from Oliver Kowalke.
Lockfree:
Lockfree data structures, from Tim Blechmann.
Multiprecision:
Extended precision arithmetic types for floating point, integer and rational arithmetic from John Maddock and Christopher Kormanyos.
Odeint:
Solving ordinary differential equations, from Karsten Ahnert and Mario Mulansky.
News
This release contains a fix for ticket 7743, in Boost.Locale. For more details, see the security notice.
More info http://www.boost.org/users/history/version_1_53_0.html
New Libraries
* Context: Context switching library, from Oliver Kowalke.
Updated Libraries
* Algorithm:
- Fixed is_sorted_until ; now matches the c++11 standard behavior on ranges with
duplicate values.
- Added range support for the rest of the search algorithms.
- unhex now uses Boost.Exception to signal bad input.
* Asio:
- Fixed an incompatibility between ip::tcp::iostream and C++11.
- Decorated GCC attribute names with underscores to prevent interaction with
user-defined macros.
- Added missing #include <cctype>, needed for some versions of MinGW.
- Changed to use gcc's atomic builtins on ARM CPUs, when available.
- Changed strand destruction to be a no-op, to allow strand objects to be
destroyed after their associated io_service has been destroyed.
- Added support for some newer versions of glibc which provide the
epoll_create1() function but always fail with ENOSYS.
- Changed the SSL implementation to throw an exception if SSL engine
initialisation fails.
- Fixed another regression in buffered_write_stream.
- Implemented various minor performance improvements, primarily targeted at
Linux x86 and x86-64 platforms.
* Config:
- Deprecated a whole bunch of macros that were c++11 specific, but not named to
show that they were c++11 specific. Made new macros with better names, and
paired the old macros with the new ones. Updated the documentation to list
the deprecated macros.
[more..]
New Libraries
* Algorithm: A collection of useful generic algorithms, from Marshall Clow.
This includes several different searching algorithms, as well as most of the
new algorithms from the C++11 standard library
* Functional/OverloadedFunction: Overload different functions into a single
function object, from Lorenzo Caminiti.
* LocalFunction: Program functions locally, within other functions, directly
within the scope where they are needed, from Lorenzo Caminiti.
* Utility/IdentityType: Wrap types within round parenthesis so they can always
be passed as macro parameters, from Lorenzo Caminiti.
More http://www.boost.org/users/history/version_1_50_0.html
was referring to 1.59. References to the boost-jam's package were thus getting
confused since they expect 1.59 to be there when 1.58 was installed.
XXX shouldn't this be a version var in meta/boost/Makefile.common ?
New Libraries
* Container: Standard library containers and extensions
* Locale: Provide localization and Unicode handling tools for C++
Beilis.
* Move: Portable move semantics for C++03 and C++11 compilers
Details: http://www.boost.org/users/history/version_1_48_0.html
New Libraries
* Chrono: Useful time utilities
* Geometry: Geometry Library
* Phoenix: Define small unnamed function objects at the actual call site, and
more
* Ratio: Compile time rational arithmetic
More: http://www.boost.org/users/history/version_1_47_0.html
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
- Fixed a problem with the Sun compiler
* Asio:
- 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
* Bind:
- make_adaptable now documented
* Concept Check:
- fixed warnings with self-assignment
* Filesystem:
- Version 3 of the library is now the default.
- IBM vacpp: Workaround for compiler bug affecting iterator_facade
- Verify, clarify, document that <boost/config/user.hpp> can be used to
specify BOOST_FILESYSTEM_VERSIO
- 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
* Graph:
- Fixed Graphviz output to work on Visual C++ 7.1.
- Replaced assert with BOOST_ASSERT.
- Changed to Boost.Filesystem v3.
More...
* Fixed a problem on kqueue-based platforms where a deadline_timer
may never fire if the io_service is running in a background thread
* Fixed a const-correctness issue that prevented valid uses of
has_service<> from compiling
* Fixed MinGW cross-compilation
* Removed dependency on deprecated Boost.System functions
* Ensured close()/closesocket() failures are correctly propagated
* Added a check for errors returned by
InitializeCriticalSectionAndSpinCount
* Added support for hardware flow control on QNX
* Always use pselect() on HP-UX, if it is available.
* Ensured handler arguments are passed as lvalues
* Fixed Windows build when thread support is disabled
* Fixed a Windows-specific problem where deadline_timer objects with
expiry times set more than 5 minutes in the future may never expire
* Fixed the resolver backend on BSD platforms so that an empty service
name resolves to port number 0, as per the documentation
* Fixed read operations so that they do not accept buffer sequences of
type const_buffers_1
* Redefined Protocol and id to avoid clashing with Objective-C++ keywords
* Fixed a vector reallocation performance issue that can occur when
there are many active deadline_timer objects
* Fixed the kqueue backend so that it compiles on NetBSD
* Fixed the socket io_control() implementation on 64-bit Mac OS X and
BSD platforms
* Fixed a Windows-specific problem where failures from accept() are
incorrectly treated as successes
* Deprecated the separate compilation header <boost/asio/impl/src.cpp>
in favour of <boost/asio/impl/src.hpp>
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
* Asio
* Config
* Filesystem
* Foreach
* Hash
* Iostreams
* Math
* MPL
* Multi-index Containers
* Proto
* Regex
* Thread
* TR1
* Type Traits
* uBLAS
* Utility
* Uuid
* Xpressive
New Libraries:
* Functional/factory: Function objects for dynamic and by-value construction.
* Functional/forward: Function object adapters to address the forwarding
problem.
Major Updates:
* Range: Boost.Range has undergone extensive updates that it include all of the
features from the recently reviewed Boost.RangeEx.
* Range-based version of the full STL iterator based algorithms.
* Range adaptors which can be combined with range-based algorithms for
unpresedented expressiveness and efficiency.
* New functions: irange, istream_range, join, combine.
Updated Libraries
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.
* New Libraries
Property Tree: A tree data structure especially suited to storing
configuration data, from Marcin Kalicinski and Sebastian Redl.
* Updated Libraries
* Build System
A bug preventing "fat" 32-bit + 64-bit builds on OSX has been fixed.
This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.
Lots of changes to list here. As usual, some new libraries have been
added and there have been improvements all around. Of special interest
is that we can now erase most of our local patches because they have
been imported upstream.
here. Based on patches sent by Brook Milligan through private mail
with some minimal changes by me to fix boost-python and builds on
Mac OS X. Tested on NetBSD/amd64 current and Tiger.
in PR pkg/36558. Committing it right after the freeze so that we have enough
time to resolve the problems that this will surely cause.
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:
o Support for ptr_map<key,T> via the new function ptr_map_insert()
o Support for initialization of Pointer Containers when the containers
hold pointers to an abstract base class.
* Date_time library:
o 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:
o Internationalization, provided by class templates basic_path,
basic_filesystem_error, basic_directory_iterator
and basic_directory_entry.
o Simplification of the path interface by eliminating special constructors
to identify native formats.
o Rationalization of predicate function design, including the addition of
several new functions.
o Clearer specification by reference to POSIX, the ISO/IEEE Single Unix
Standard, with provisions for Windows and other operating systems.
o Preservation of existing user code whenever possible.
o More efficient directory iteration.
o 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
o Use declarations for standard classes, so that the library doesn't
need to include all of their headers
o Deprecated the <boost/functional/hash/*.hpp> headers.
o Add support for the BOOST_HASH_NO_EXTENSIONS macro, which disables
the extensions to TR1
o Minor improvements to the hash functions for floating point numbers.
* Graph Library:
o edmonds_maximum_cardinality_matching, from Aaron Windsor.
o lengauer_tarjan_dominator_tree, from JongSoo Park.
o compressed_sparse_row_graph, from Jeremiah Willcock and Douglas Gregor
of Indiana University.
o sorted_erdos_renyi_iterator, from Jeremiah Willcock
of Indiana University.
o biconnected_components now supports a visitor and named parameters,
from Janusz Piwowarski.
o adjacency_matrix now models the Bidirectional Graph concept.
o dijkstra_shortest_paths now calls vis.initialize_vertex for each
vertex during initialization.
o Note: the name of the compiled library for the GraphViz reader has
changed to boost_graph (from bgl-viz) to match Boost conventions.
o 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:
o New random access indices.
o Non key-based indices feature new rearrange facilities.
o This version also includes a number of optimizations and usage
improvements. For a complete list of changes,
see the library release notes.
* Optional Library:
o boost::none_t and boost::none now added to Optional's documentation
o Relational operators now directly support arguments of type 'T'
and 'none_t'
o operator->() now also works with reference types.
o Helper functions make_optional(val), make_optional(cond,val)
and get_optional_value_or(opt,alternative_value) added.
o Constructor taking a boolean condition (as well as a value) added.
o Member function get_value_or(alternative_value) added.
o Incompatbility bug with mpl::apply<> fixed.
o Converting assignment bug with uninitialized lvalues fixed.
* Parameter Library:
o Every ArgumentPack is now a valid MPL Forward Sequence.
o Support for unnamed arguments (those whose keyword is deduced from
their types) is added.
o Support for named and unnamed template arguments is added.
o New overload generation macros solve the forwarding problem directly.
o See also the Python library changes, below.
* Pointer Container Library:
o Support for serialization via Boost.Serialization.
o 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.
o 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.
o transfer() now has weaker requirements s.t. one can transfer objects
from ptr_container<Derived> to ptr_container<Base>,
* Python Library:
o Boost.Python now automatically appends C++ signatures to docstrings.
The new docstring_options.hpp header is available to control the
content of docstrings.
o stl_input_iterator, for turning a Python iterable object into an STL
input iterator, from Eric Niebler.
o Support for void* conversions is added.
o Integrated support for wrapping C++ functions built with the
parameter library; keyword names are automatically known to
docsstrings.
o 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:
o Allocator support as proposed in N1851 (162 Kb PDF).
o pointer_cast and pointer_to_other utilities to allow
pointer-independent code, from Ion Gaztanaga.
* String Algorithm Library:
o lexicographical_compare
o join
o New comparison predicates is_less, is_not_greater.
o Negative indexes support (like Perl) in various algorihtms
(*_head/tail, *_nth).
* Wave Library:
o 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.
o Several new preprocessing hooks have been added. For a complete
description please refer to the related documentation page:
The Context Policy.
o Shared library (dll) support has been added for the generated Wave
libraries.
o The overall error handling has been improved. It is now possible to
recover and continue after an error or a warning was issued.
o Support for optional comment and/or full whitespace preservation
in the generated output stream has been added.
o The Wave library now performs automatic include guard detection to
avoid accessing header files more than once, if appropriate.
o 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.).
o The overall performance has been improved by upto 40-60%, depending
on the concrete files to process.
o 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).
o Optional support for #pragma message "..." has been added.
o This version also includes a number of bug fixes and usage
improvements. For a complete list of changes, see the libraries
change log.
