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.

Updated Libraries

• Algorithm:

  • Fixed non-ASCII char in comment (#7781).
  • Updated the Knuth-Morris-Pratt docs (#7656).
• Array:

  • Added support for boost::get and std::get (#7652)
• Asio:

  • Fixed some 64-to-32-bit conversion warnings (#7459).
  • Fixed some small errors in documentation and comments (#7761).
  • Fixed an error in the example embedded in basic_socket::get_option's documentation (#7562).
  • Changed to use long rather than int for SSL_CTX options, to match OpenSSL (#7209).
  • Changed to use _snwprintf to address a compile error due to the changed swprintf signature in recent versions of MinGW (#7373).
  • Fixed a deadlock that can occur on Windows when shutting down a pool of io_service threads due to running out of work (#7552).
  • Enabled the noexcept qualifier for error categories (#7797).
  • Changed UNIX domain socket example to treat errors from accept as non-fatal (#7488).
  • Added a small block recycling optimisation to improve default memory allocation behaviour.
• Bimap:

  • Refactor map_view_iterator to improve error messages.
  • Fixed replace_(left/right/key/data) bug when using relations with info.
  • Fixed vector_of and list_of views assign(size_type,value_type) bug.
  • Fixed vector_of views operator[](size_type) and at(size_type) functions return value.
• Chrono:

  • Deprecated:

    • The chrono i/o version included in Boost.Chrono 1.2.x has been completly refactored in version 2.0.0
    • chrono I/O: The manipulators __duration_short, __duration_long are depreceated. You should use the parameterized form __duration_fmt or the renamed manipulators __duration_symbol and __duration_prefix instead.
    • chrono I/O: The __duration_punct<> facet is depreceated. You should use the __get_duration_style free function to get the informations and use the __duration_units facet for localization purposes.
    • When BOOST_CHRONO_VERSION==2 the preceding deprecated functions are not available.
  • Fixes:

    • #7546 time_point<system_clock> output version 2 fails to compile
    • #7547 time_point<system_clock> input version 2 fails to compile
    • #7868 chrono_io parses time incorrectly (1.53 and 1.52)
• Container:

  • Fixed bug #7650.
  • Improved vector's insertion performance.
  • Changed again experimental multiallocation interface for better performance (still experimental).
  • Added no exception support for those willing to disable exceptions in their compilers.
  • Fixed GCC -Wshadow warnings.
  • Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
• Context:

  • Support for iOS on ARM and MacOS X on x86 (32bit) added.
  • Support for SEH Overwrite Protection on Win32.
• Geometry:

  • Bugfixes

    • avoid generating output polygons with interior rings below minimum size (e.g. one or two points)
    • geometry::disjoint for degenerate segments (patched by Karsten Ahnert)
    • problem in geometry::difference for missing handling tangency, reported by H2
    • fixed geometry::for_each for use with Lambda's
    • fixed geometry::comparable_distance point-linestring (and -range, -polygon)
  • Additional functionality

    • combinations for geometry::disjoint: point/ring, point/polygon, point/multi_polygon
    • combinations for geometry::intersects: point/ring, point/polygon, point/multi_polygon
  • Internal changes

    • updates in specializations/not_implemented for various algorithms (as in an earlier version, these changes are still going on; they take care for simplified structs, better error reporting, and automatized documentation)
    • fixes in unit tests
• GIL:

  • Fixed self-assignment warnings (#4919).
• Graph:

  • Fixed the following bugs from Trac: #3468, #4386, #5269, #7428, #7457, #7467, #7600, #7648, #7684, #7728, #7741, #7766, #7771, #7773, #7780, #7787, #7801 plus other bugs not in Trac.
  • Added support for reading from GraphML files containing multiple graphs.
  • Added versions of A* search specifically for trees, removing the need for a color map when it is acceptable to visit the same vertex multiple times.
  • Added VF2 subgraph isomorphism algorithm (contributed by Flavio De Lorenzi).
• Hash:

  • Add support for boost::int128_type and boost::uint128_type where available.
  • On platforms that are known to have standard floating point functions, don't use the automatic detection (#7221, #7470).
• Interprocess:

  • Fixed GCC -Wshadow warnings.
  • Experimental multiple allocation interface improved and changed again. Still unstable.
  • Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
  • ABI breaking: changed node pool allocators internals for improved efficiency.
  • Fixed bug #7795.
• Intrusive:

  • Fixed bugs #7174, #7529, #7815.
  • Fixed GCC -Wshadow warnings.
  • Added missing explicit keyword in several intrusive container constructors.
  • Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
  • Small documentation fixes.
• Lexical cast:

  • New character type detection algorithm for user defined types #6786.
  • Documentation updates (#7582, #7831).
  • Fixed bugs with std::array #7799.
  • Fixed compilation with -ftrapv and numeric to numeric conversions #7814.
• Locale:

  • Security related bug fix, some invalid UTF-8 sequences where accepted as valid #7743
  • Invalid Windows codepage names used #7386
  • Fixed missing documentation, caused by a error in Doxygen formatting #7734
  • Fixed missing std:: in some places #7701
  • Spelling, grammar, typos fixes #7368, #7762
• Math:

  • Fixed issues #7325, #7415, #7416, #7183, #7649, #7694, #4445 and #7492.
  • Fixed mistake in calculating pooled standard deviation in two-sample students t example #7402.
  • Improve complex acos/asin/atan, see #7290, #7291.
  • Improve accuracy in some corner cases of cyl_bessel_j and gamma_p/gamma_q thanks to suggestions from Rocco Romeo.
  • Improve accuracy in Bessel J and Y with integer orders thanks to suggestions from Rocco Romeo.
• MinMax:

  • Fixed a misuse of the comma operator (#7752).
  • Updated the docs to fix broken link (#7751).
• Move:

  • Better header segregation (bug #6524).
  • Small documentation fixes
  • Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
  • Fixed #7830, #7832.
• Polygon:

  • Fixes:

    • #6366 Bug in boost::polygon::contains for polygon_90 type.
    • #7678 multiple definitions of bool boost::polygon::belongs(...) by multiple #include.
  • Internal changes:

    • refactored point/segment/interval data/concept/traits.
    • added unit tests for point and interval data/concept/traits.
    • simplified transform.hpp to operate only in 2D.
    • removed point_3d data/concept/traits.
• Random:

  • Now compiles with exceptions disabled (#5399).
• Range:

  • Bug fixes:

    • #5603 the "range/any_range.hpp" header is not self-sufficient
    • #6103 boost::range_detail vs. boost::range::range_detail compiler error
  • Documentation fixes:

    • #5160
    • #5314
    • #5440
    • #5775
    • #6212
    • #7585
    • #7843
    • #7916
    • #7926
• Ratio:

  • Fixes:

    • #7616 br_mul::nan - warning C4293: '<<' : shift count negative or too big, undefined behavior`.
• Regex: Fixed Issues: #7744, #7644.
• Smart Pointers:

  • New Features:

    • Glen Fernandes provided implementations of make_shared and allocate_shared for arrays. They achieve a single allocation for an array that can be initialized with constructor arguments or initializer lists as well as overloads for default initialization and no value initialization. See the 'make_shared and allocate_shared for arrays' page for more information.
    • shared_ptr can now be used to hold a pointer to a dynamically allocated array. This is accomplished by using an array type (T[] or T[N]) as the template parameter.
    • Smart pointers now use explicit operator bool on C++11 compilers. This can break code that passes a smart pointer to a function taking a bool, or that returns a smart pointer from a function with a bool return type. Please use p != 0 or !!p in such cases.
• StringAlgo:

  • Fixed a bug where it wouldn't find overlapping patterns (#7784).
  • Disambiguated some calls to insert (#7346).
• Thread:

  • Deprecated features:

    • Deprecated features since boost 1.53 will be available only until boost 1.58.
    • C++11 compliance: packaged_task<R> is deprecated, use instead packaged_task<R()>.
    • #7537 deprecate Mutex::scoped_lock and scoped_try_lock and boost::condition
  • New Features:

    • #6270 C++11 compliance: Add thread constructor from movable callable and movable arguments
    • #7279 C++11 compliance: Add noexcept in system related functions
    • #7280 C++11 compliance: Add promise::...at_thread_exit functions
    • #7281 C++11 compliance: Add ArgTypes to packaged_task template.
    • #7282 C++11 compliance: Add packaged_task::make_ready_at_thread_exit function
    • #7412 C++11 compliance: Add async from movable callable and movable arguments
    • #7413 C++11 compliance: Add async when the launch policy is deferred.
    • #7414 C++11 compliance: future::get post-condition should be valid()==false.
    • #7422 Provide a condition variable with zero-overhead performance penality.
    • #7444 Async: Add make_future/make_shared_future.
    • #7540 Threads: Add a helper class that join a thread on destruction.
    • #7541 Threads: Add a thread wrapper class that joins on destruction.
    • #7575 C++11 compliance: A future created by async should "join" in the destructor.
    • #7587 Synchro: Add strict_lock and nested_strict_lock.
    • #7588 Synchro: Split the locks.hpp in several files to limit dependencies.
    • #7590 Synchro: Add lockable concept checkers based on Boost.ConceptCheck.
    • #7591 Add lockable traits that can be used with enable_if.
    • #7592 Synchro: Add a null_mutex that is a no-op and that is a model of UpgardeLockable.
    • #7593 Synchro: Add a externally_locked class.
    • #7594 Threads: Allow to disable thread interruptions.
  • Fixed Bugs:

    • #7464 BOOST_TEST(n_alive == 1); fails due to race condition in a regression test tool.
    • #7657 Serious performance and memory consumption hit if condition_variable methods condition notify_one or notify_all is used repeatedly.
    • #7665 this_thread::sleep_for no longer uses steady_clock in thread.
    • #7668 thread_group::join_all() should check whether its threads are joinable.
    • #7669 thread_group::join_all() should catch resource_deadlock_would_occur.
    • #7671 Error including boost/thread.hpp header on iOS.
    • #7672 lockable_traits.hpp syntax error: "defined" token misspelled.
    • #7798 boost::future set_wait_callback thread safety issues.
    • #7808 Incorrect description of effects for this_thread::sleep_for and this_thread::sleep_until.
    • #7812 Returns: cv_status::no_timeout if the call is returning because the time period specified by rel_time has elapsed, cv_status::timeout otherwise.
    • #7874 compile warning: thread.hpp:342: warning: type attributes are honored only at type definition.
    • #7875 BOOST_THREAD_THROW_IF_PRECONDITION_NOT_SATISFIED should not be enabled by default.
    • #7882 wrong exception text from condition_variable::wait(unique_lock<mutex>&).
    • #7890 thread::do_try_join_until() is missing a return type.
• Unordered:

  • Remove support for the old pre-standard variadic pair constructors, and equality implementation. Both have been deprecated since Boost 1.48.
  • More internal implementation changes, including a much simpler implementation of erase, and removed more deprecated config macros.
• Utility:

  • Added string_ref, a non-owning reference to a contiguous sequence of characters.
• Variant:

  • Added rvalue constructors and rvalue assignment operators (for C++11 compatible compilers only). Library now can be used with move-only types (#7620, #7718).
• Wave:

  • See the Changelog for details.
• xpressive:

  • Accomodate recent smart pointer changes (#7809).

Updated Tools

• Boost Build System:

  • Qt5 toolset
  • improved rcc support (#7576)

Compilers Tested

Boost's primary test compilers are:

• Linux:

  • GCC: 4.1.2, 4.2.4, 4.4.4, 4.5.3, 4.6.3, 4.7.2
  • GCC, C++11 mode: 4.4.4, 4.5.3, 4.6.3, 4.7.2
  • Intel: 11.1, 12.1
  • LLVM Clang: 2.8
  • LLVM Clang, with libc++: 3.2
• OS X:

  • GCC: 4.4.7
  • GCC, C++11 mode: 4.4.4
  • Intel: 11.1, 12.0
• Windows:

  • Visual C++: 9.0, 10.0
• FreeBSD:

  • GCC: 4.2.1, 32 and 64 bit

Boost's additional test compilers include:

• Linux:

  • Cray: 4.6.1
  • Clang: from subversion
  • LLVM Clang, with libc++: 3.2
  • GCC: 4.2.4, 4.4.4, 4.5.3, 4.6.3, 4.7.1
  • GCC, C++11 mode: 4.4.4, 4.5.3, 4.6.3, 4.7.1, 4.7.2
  • pgCC: 11.9
  • Intel: 10.1, 11.1, 12.1
  • Intel, C++11 mode: 13.0.1
  • Visual Age:
• OS X:

  • Clang: from subversion
  • Clang, C++11 mode: from subversion
  • Intel: 11.1, 12.0
  • GCC: 4.4.7
  • GCC, C++11 mode: 4.4.4
• Windows:

  • Visual C++: 10.0, 11.0
  • Visual C++ with STLport: 9.0
  • Visual C++, Windows Mobile 5, with STLport: 9.0
• AIX:

  • IBM XL C/C++ Enterprise Edition: V12.1.0.1

Acknowledgements

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