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(this page)| 2021-11-30 17:57:25 by Adam Ciarcinski | Files touched by this commit (3) |
Log message: boost-headers: remove type check for long double to fix py-scipy build; bump revision |
| 2021-10-26 12:57:38 by Nia Alarie | Files touched by this commit (2) |
Log message: meta-pkgs: Replace RMD160 checksums with BLAKE2s checksums (why does this category have checksums?) All checksums have been double-checked against existing RMD160 and SHA512 hashes |
| 2021-10-07 16:30:58 by Nia Alarie | Files touched by this commit (2) |
Log message: meta-pkgs: Remove SHA1 hashes for distfiles |
| 2021-10-04 09:13:20 by Adam Ciarcinski | Files touched by this commit (1) |
Log message: boost: revert to just c++ (not c++); reported by @tnn |
2021-09-29 18:11:04 by Adam Ciarcinski | Files touched by this commit (14) |  |
Log message:
boost: updated to 1.77.0
1.77.0
New Libraries
Describe:
A C++14 reflection library, from Peter Dimov. Provides macros for describing \
enumerators and struct/class members, and primitives for querying this \
information.
Lambda2:
A C++14, dependency-free, single header lambda library, from Peter Dimov. Allows \
simple function objects to be constructed via expressions such as _1 + 5, _1 % 2 \
== 0, _1 > _2, or _1 == ' ' || _1 == '\t'.
Updated Libraries
Any:
Added boost::anys::basic_any - a data type with customizable Small Object \
Optimization whose instances can hold instances of any type that satisfies \
ValueType requirements (many thanks to Ruslan Arutyunyan @rarutyun). If you are \
not sure that you really need it, then use boost::any instead.
Started using GithubActions CI for additional testing
Asio:
Added support for cancellation of individual asynchronous operations.
Added the associator trait, used to generically forward associators.
Changed all asynchronous operations implemented in Asio to invoke their \
completion handlers as rvalue references.
Added support for asynchronous operations with multiple completion signatures.
Added operator&& and operator|| for awaitable<>, to allow \
coroutines to be trivially awaited in parallel.
Added the experimental::as_tuple completion token adapter.
Added the experimental::append completion token adapter.
Added the experimental::prepend completion token adapter.
Added the experimental::deferred completion token, whicih allows deferred \
execution of asynchronous operations.
Added the experimental::parallel_group class and \
experimental::make_parallel_group function.
Added experimental::promise, which allows eager execution and synchronisation of \
asynchronous operations.
Added the experimental::coro class template, a C++20 coroutine primitive with \
the ability to combine both asynchronous waiting (co_await) and yielding \
(co_yield).
Added move assignment to ssl::stream<>.
Changed co_spawn to dispatch the coroutine's initial step to the executor.
Enabled additional optimisations for any_executor and any_io_executor when used \
with asynchronous operations.
Added the nodiscard attribute to awaitable<>.
Increased the number of cached slots in the default recycling allocator.
Changed the default allocator behaviour to respect alignment requirements, to \
support over-aligned types.
Ensured the result strings are always initialised in reverse name resolution.
Fixed recursive template instantiation issues in \
use_awaitable_t::executor_with_default.
Fixed the any_io_executor equality operators to correctly return a result based \
on the target executor.
Fixed strand<> to avoid using a potentially moved-from executor.
Ensured gcc tests are not used for clang when detecting compiler features.
Disabled coroutines support for the clang shipped with MSVC.
Fixed compatibility with recent LibreSSL when OPENSSL_NO_SSL_INTERN is defined.
Fixed posix::basic_stream_descriptor move operations to work with non-defaulted \
executors.
Consult the Revision History for further details.
Atomic:
Added make_atomic_ref and make_ipc_atomic_ref factory functions for constructing \
atomic reference objects.
Added C++17 template argument deduction guides for atomic_ref and ipc_atomic_ref \
to allow omitting template arguments when they can be deduced from constructor \
arguments.
Beast:
This maintenance update brings minor bug fixes and updated CI reporting.
We'd love to know how you or your company use Beast, consider adding an entry to \
the Companies and Individuals Using Beast list.
See the full Release Notes for a complete list of changes.
Conversion:
boost::implicit_cast is now constexpr.
Fixed broken links.
Started using GithubActions CI for additional testing
Core:
boost/core/uncaught_exceptions.hpp has been modified for compatibility with Mac \
OS 10.4 and older.
DLL:
More runtime checks for malformed ELFs in boost::dll::library_info
In boost::dll::library_info use info from .dynsym ELF section if .symtab is \
empty or missing
List protected ELF symbols in boost::dll::library_info as they are available for \
import
Remove unneeded convert from wchar_t to char on POSIX environment, thanks to \
Vladislav Shchapov
Started using GithubAction CI for additional testing
Filesystem:
Introducing Boost.Filesystem v4. This new version of the library removes all \
deprecated features of v3 and also makes a number of breaking API changes \
intended to make Boost.Filesystem more compatible with std::filesystem \
introduced in C++17. The differences are described in the release notes and \
documentation using v3 and v4 tags and are also summarised in a separate \
section. Users can select Boost.Filesystem version by defining \
BOOST_FILESYSTEM_VERSION macro to either 3 or 4 when compiling their code. There \
is no need to separately compile Boost.Filesystem for each library version - a \
single binary supports both v3 and v4. Users should avoid using both v3 and v4 \
in the same application as this can lead to subtle bugs. Currently, v3 is the \
default. In a future release v4 will become the default, and eventually v3 will \
be removed. v4 is functional, but it is still a work in progress and there may \
be breaking API changes in the future.
v4: path::filename, path::stem and path::extension no longer consider root name \
or root directory of the path as a filename if the path only consists of those \
components. For example, on Windows path("C:").filename() used to \
return "C:" and path("C:\\").filename() used to return \
"\" and both will return an empty path now.
v4: path::stem and path::extension no longer treat a filename that starts with a \
dot and has no other dots as an extension. Filenames starting with a dot are \
commonly treated as filenames with an empty extension. The leading dot is used \
to indicate a hidden file on most UNIX-like systems.
New: Improved support for various path prefixes on Windows. Added support for \
local device prefix ("\\.\") and experimental support for NT path \
prefix ("\??\"). The prefixes will be included in the root name of a \
path. Note that using the prefixes with Boost.Filesystem v3 can lead to \
surprising results (e.g. path("\\\\.\\").stem() == "\\\\"). \
It is recommended to use the prefixes only with Boost.Filesystem v4.
Reworked path::lexically_normal implementation to eliminate some cases of \
duplicate dot (".") elements in the normalized paths.
New: Added runtime detection of the statx and getrandom system calls on Linux. \
This can be useful if the syscall is present at compile time but fails with \
ENOSYS at run time (for example, in Docker containers that restrict the syscall, \
even if available on the host).
New: Added support for disabling usage of various system APIs at library build \
time. This can be useful when a certain API is detected as present by the \
library configuration scripts but must not be used for some reason (for example, \
when runtime detection does not work on the target system). See the description \
of configuration macros in the library documentationfor for more details.
New: Added copy_options::synchronize_data and copy_options::synchronize options \
for the copy_file operation. These options allow to synchronize the written data \
and attributes with the permanent storage. These options are expensive in terms \
of performance, but allow to ensure reliability of the copied data. Note that \
copy_file performed implicit data synchronization on POSIX systems since \
Boost.Filesystem 1.74.0. This release adds support for more platforms and \
disables data synchronization by default while allowing the caller to explicitly \
request it.
Added handling of EINTR error code on POSIX systems for some system calls issued \
internally. In particular, EINTR could have been ignored on close, which on \
HP-UX would result in a leaked file descriptor.
In the copy_file implementations based on Linux sendfile and copy_file_range \
system calls, added handling of error codes indicating that a particular \
filesystem does not support the system call and fall back to the generic \
read/write loop. This should fix copy_file failing on eCryptFS and possibly \
other filesystems.
The copy_file_range system call is now used since Linux kernel 4.5, whereas \
previously it was only enabled since 5.3. The copy_file implementation will fall \
back to sendfile or read/write loop if copy_file_range fails to copy a given \
file across filesystems.
The copy_file implementations based on Linux sendfile and copy_file_range system \
calls will not be used on filesystems that are known to contain files with \
generated content. These system calls are incompatible with such files, and \
copying them would result in zero-sized files. The generic read/write loop will \
be used instead. Currently, the blacklisted filesystems are: procfs, sysfs, \
tracefs and debugfs.
In the copy_file implementation based on read/write loop, increased the maximum \
size of the buffer used for temporary storage and take into account the target \
filesystem block size for more optimal performance.
On Windows CE, calling current_path to obtain the current path for a process \
will now fail with an error instead of returning successfully with a root path. \
This platform does not support current directory. Changing the current path was \
already failing similarly in previous releases of Boost.Filesystem.
In canonical, fixed the check for a symlink referencing a directory above root, \
if an earlier symlink was resolved to an absolute path with a different root \
from the original path.
In canonical, added a limit for the maximum number of symlinks that can be \
resolved during the call. The limit is currently at least 40 symlinks.
On Windows, canonical and weakly_canonical will now use \
path::preferred_separator for the root directory separator in the resulting \
paths. This fixes "file not found" errors caused by Windows API not \
handling generic separators in UNC paths and paths that start with the Win32 \
filesystem prefix ("\\?\").
New: Added weakly_canonical overloads taking base path as an argument.
On Windows, weakly_canonical no longer fails with an error if the input path \
contains elements that do not exist in the filesystem but are cancelled by a \
subsequent dot-dot ("..") element. For example, \
weakly_canonical("C:\\a\\..") would previously fail if \
"C:\a" directory did not exist.
In read_symlink on Windows, corrected reparse point handling. The operation \
would return an empty path for some mount points (for example, created by Box \
cloud storage driver) and directory junction points that had empty print names. \
The new implementation now parses substitute name of the reparse point and \
attempts to reconstruct a Win32 path from it.
On Windows, file streams provided in boost/filesystem/fstream.hpp will use wide \
character paths on libc++ versions 7.0 and higher, when the standard library \
supports opening files with wide character paths.
On Windows, creating symlinks should no longer require elevated privileges, if \
Windows is configured in Developer mode.
With some compilers, global objects used internally in Boost.Filesystem are now \
destroyed after user's global destructors are called. This allows to call \
Boost.Filesystem methods during the program termination stage. In particular, \
this concerns the path locale that is used for character code conversion and can \
be installed by calling path::imbue. The supported compilers include MSVC, GCC \
and Clang, as well as other compilers that support customizing program \
initialization order through #pragma section (for MSVC-compatible compilers) or \
__attribute__ ((init_priority)) (for GCC-compatible compilers).
JSON:
value_to supports TupleLike types.
value_to and value_from support std::array and similar types.
Implicit conversion operator from string to std::string_view.
std::hash specializations for json types.
Fixed allocation errors in object and key_value_pair.
Fixed crash when constructing array from a pair of iterators that form an empty \
range.
LexicalCast:
Fixed assignment to an int of a floating point value that is out of \
representable range for int.
Started using GithubActions CI for additional testing
Log:
Fixed compilation for riscv32 target.
Mp11:
Added mp_intersperse, mp_split, mp_join
Multi-index Containers:
Maintenance work.
PFR:
A MurMur Hash based implementation of hash_combine() is now used to reduce \
collisions count and improve quality of boost::pfr::hash_value()
Visual Studio 2017 now supported in C++14 mode (thanks to Denis Mikhailov aka \
@denzor200)
Issues found by inspect tool were fixed
Fixed some warnings, including removal of extra semicolons in \
include/boost/pfr/detail/fields_count.hpp
Added a compile time assert for inherited types (thanks to Denis Mikhailov aka \
@denzor200)
Reflection of aggregates with non movable fields is now possible if guaranteed \
copy elision is on
Fixed spelling issues
Started using GithubActions CI for additional testing
PropertyTree:
This is a maintenance release.
Extend compiler coverage in CI.
Fix Boost compatibility for CMakeLists.txt.
System:
The conversion operator from error_category to std::error_category has been \
improved and no longer requires <map> or <mutex>.
The comparison operators of error_category are now inline friends instead of \
member functions (a side effect of the previous change.)
error_condition now defers calling generic_category() to avoid instantiating the \
object until it's actually needed.
error_condition::failed and error_condition::message have been undeprecated, and \
operator bool() now once again returns failed().
The system category now doesn't call generic_category(), to avoid instantiating \
the object.
The return value of default_error_condition changes in some cases into an \
error_condition from the generic category, instead of from the system category. \
This happens on POSIX when the input error_code is from the system category and \
does not correspond to any errc_t value.
The interoperability of error_code and std::error_code has been improved \
substantially. It is now possible to construct boost::system::error_code from \
std::error_code, and it's possible to pass boost::system::error_code to \
functions taking std::error_code&.
A stream insertion operator for error_condition has been added.
Uuid:
Added to_chars for writing uuid strings without allocating
|
| 2021-05-27 19:02:24 by Nia Alarie | Files touched by this commit (2) |
Log message: boost: bump GCC requirement |
| 2021-04-21 14:09:50 by Adam Ciarcinski | Files touched by this commit (13) | |
Log message:
boost: updated to 1.76.0
Updated Libraries
Asio:
Added ip::scope_id_type type alias.
Added ip::port_type type alias.
Added std::hash specialisations for IP addresses.
Added std::hash specialisations for ip::basic_endpoint<>.
Refactored SFINAE usage to improve compile times.
Added friendship support to customisation points, and made most customisations \
private.
Changed any_io_executor to a "strong typedef"-style class.
Fixed experimental::as_single to work with handler hook deprecation.
Ensured pthread condition variable attributes are cleaned up on all platforms.
Clarified thread safety notes on sockets and descriptors.
Ensured errno is not overwritten if socket() fails on macOS/FreeBSD.
Fixed work tracking for io_context and thread_pool executors when move-assigned.
Ensured internal call_stack objects are accessed only from implementation files.
Fixed I/O object move-assignment to ensure the executor is left in a valid state.
Fixed detection of compiler support for defaulted template argument on functions \
with MSVC.
Prevented the blocking.always property from being used with strand<>, as \
it did not produce the correct semantics.
Removed deprecated file asio/impl/src.cpp.
Atomic:
Fixed compilation with MSVC for ARM.
Beast:
This update brings minor bug fixes and revamped CI reporting.
We'd love to know how you or your company use Beast, consider adding an entry to \
the Companies and Individuals Using Beast list.
See the full Release Notes for a complete list of changes.
Bind:
Add support for using the standard C++11 placeholders with boost::bind.
Update boost::apply to use variadic templates and perfect forwarding.
Container:
Added [[no-discard]] attribute in all containers to catch bugs related to unused \
return values.
Replaced default standard exception classes with Boost.Container own classes, \
reducing considerably the included files overhead. Example: in MSVC 19 \
boost/container/vector.hpp preprocessed file size reduces from 1,5MB to 930KB. \
If you still want to use standard exception classes, you can define \
BOOST_CONTAINER_USE_STD_EXCEPTIONS before using any Boost.Container class.
Fixed bugs/issues:
GitHub 102: "flat_map::insert ambiguous with initializer list & pairs \
that need to convert".
GitHub 139: "flat_map merge and iterators".
GitHub 141: "small_vector does not propagate no throw properties of move \
operation of contained type".
GitHub 164: "Compile error when using pmr::map with a std::pair; works when \
using a std::tuple".
GitHub 171: "deque::clear() uses undefined behaviour".
Core:
Add implicit conversion between compatible reference wrappers.
Add boost/core/cmath.hpp, a portable implementation of the floating point \
classification functions from <cmath>.
Add boost/core/bit.hpp, a portable implementation of the C++20 standard header \
<bit>.
Fix BOOST_TEST_EQ, BOOST_TEST_NE for character types under C++20.
Revise allocator access utilities (now support VS2013, and no workarounds use \
allocator_traits.)
DLL:
BREAKING CHANGE: boost::dll::import was renamed to boost::dll::import_symbol to \
avoid collision with C++20 import keyword.
Updated docs, including FAQ section.
Filesystem:
Updated compatibility with WASI platform.
Fixed an exception being thrown by path::remove_filename if the path is \
"////".
Fixed create_directories disregarding errors from file status query operations \
issued internally. This could result in incorrect error codes returned by \
create_directories.
GIL:
BREAKING: In next release, we are going to drop support for GCC 5. We will also \
change the required minimum C++ version from C++11 to C++14.
Intrusive:
Reduced compile-time dependencies:
linear_slist_algorithms use a simple node_ptr instead of std::pair on return.
list/slist use operator </operator == instead of std::equal_to/std::less.
Fixed GitHub 54: set.rbegin() looks like O(log(N))
Interprocess:
Added wchar_t API support for named resources in operating systems that offer \
native wide character API (e.g. Windows). The following classes were updated \
with wchar_t name support:
file_mapping
managed_mapped_file
managed_shared_memory
managed_windows_shared_memory
shared_memory_object
windows_shared_memory_object
file_lock
named_condition
named_condition_any
named_mutex
named_recursive_mutex
named_semaphore
named_sharable_mutex
named_upgradable_mutex
message_queue
Added BOOST_INTERPROCESS_FORCE_NATIVE_EMULATION macro option to disable the use \
of generic emulation code for process shared synchronization primitives instead \
of native POSIX or Winapi functions.
Fixed bugs:
GitHub 76 ("Cygwin compilation errors").
GitHub 83 ("Add BOOST_INTERPROCESS_FORCE_NATIVE_EMULATION option").
GitHub 92 ("bufferstream: Correct MSVC compilation warning").
GitHub 106 ("Use fallocate on truncate_file").
GitHub 120 ("segment_manager customization").
GitHub 122 ("Mark constructors/assignment/swap noexcept where possible").
GitHub 126 ("_ReadWriteBarrier is deprecated warning when compiling with \
clang-cl.exe").
JSON:
Security Report from Bishop Fox.
Refactored value_from implementation; user customizations are now always \
preferred over library-provided overloads.
Fix imprecise parsing for some floating point numbers.
Fix link errors in standalone mode, when used alongside Boost.
Fix Boost.Build builds on GCC 4.8.
LexicalCast:
Dropped dependency on Boost.Math
Fixes for the CI and coverage
Log:
Bug fixes:
Corrected a formal race condition in the thread-safe log record queue \
implementation used in the unbounded_fifo_queue policy of the asynchronous_sink \
frontend. The race could be detected by TSAN, but it was not a real problem on \
most current CPU architectures and compilers.
When copying a logger with a channel attribute (e.g. channel_logger), the \
channel attribute is now deep-copied from the original logger. This means that \
modifying the channel in the new logger will no longer affect the original \
logger.
Replaced the use of std::allocator<void> in template parameters with a new \
tag type boost::log::use_std_allocator to silence libc++ warnings about the \
former being deprecated in C++17 and later. The tag indicates that the \
instantiated template should be using a specialization of std::allocator \
internally to allocate dynamic memory, so the change has no functional effect.
Boost.Log no longer defines __MSVCRT_VERSION__ macro on MinGW and MinGW-w64. \
Defining this macro caused incompatibility with UCRT, which is available as an \
option in recent MinGW-w64.
See changelog for more details.
Math:
Breaking Change: C++03 support is now removed, a C++11 or later conformant \
compiler is now required to use this library.
Added Z-test.
Added execution policy support to univariate and bivariate statistics: enables \
parallel execution (requires C++17 and <execution>).
Big update/improvement on CI testing.
Bivariate statistics now have integer support.
T-Test now has integer support.
Linear regression now has integer support.
Correct PDF of the beta distribution at the endpoints.
Correct use of Stirling's approximation in certain multiprecision cases.
Eliminate -Wimplicit-int-float-conversion on clang.
Fix some constexpr issues in quaternion/octonion.
Minor performance fix to tanh_sinh integration.
Update hypergeometric functions internal scaling to allow for 64-bit (long long) \
exponents with multiprecision types.
Move:
Git Issue 35: "New nothrow move traits are incomplete".
Multiprecision:
BREAKING CHANGE: Massive refactoring and code simplification makes C++11 an \
absolute requirement.
Use BOOST_TRY/CATCH in headers so code can be used in exception-free environments.
Correct corner case in pow.
Correct exception type thrown to match docs in lsb/msb.
Allow moves and operators between related but different types (ie types with the \
same allocator).
Nowide:
Fix discarding of characters for text file streams when seek or sync functions \
are used and newlines were converted (e.g. on Windows)
Fix potential use-after-free bug when reusing (via open) a file stream that has \
been closed
Fix potential invalid memory access when using a file stream that has been moved \
or swapped to where the source had a put-back character or was set to unbuffered \
mode
Fix compatibility with ucrt runtime by not defining __MSVCRT_VERSION__
Known issues: Read performance for text files is degraded. Binary files and \
writing is unaffected.
Optional:
Fixed MSVC warning C4702.
Outcome:
Announcements:
BREAKING CHANGE: After a year and three major Boost releases announcing this \
upcoming change, this is the FIRST RELEASE of the v2.2 branch. This branch has a \
number of major breaking changes to the Outcome v2.1 which shipped in Boost 1.75 \
and earlier, see the documentation for details.
Enhancements:
VS2019.8 changed how to enable Coroutines, which caused Outcome to not compile \
on that compiler.
If on C++ 20, we now use C++ 20 [[likely]] instead of compiler-specific markup \
to indicate when TRY has likely success or failure.
BREAKING CHANGE: Previously the value of spare_storage(const \
basic_result|basic_outcome *) noexcept was not propagated over \
BOOST_OUTCOME_TRY, which causes things like stack backtraces captured at the \
point of construction of an errored result to get dropped at every TRY point. \
This has been fixed by adding an optional spare_storage to success_type<T> \
and failure_type<T>, as well as to auto success(T &&, ...) and \
auto failure(T &&, ...).
Bug fixes:
Boost.Outcome should now compile with BOOST_NO_EXCEPTIONS defined. Thanks to \
Emil, maintainer of Boost.Exception, making a change for me, Boost.Outcome \
should now compile with C++ exceptions globally disabled. You won't be able to \
use boost::exception_ptr as it can't be included if C++ exceptions are globally \
disabled.
BREAKING CHANGE 244 It came as a shock to learn that BOOST_OUTCOME_TRY had been \
broken since the inception of this library for certain corner case code, which \
required a breaking change in how TRY works. See the changelog in the \
documentation for more detail.
Parameter:
Added a workaround for MSVC 2015 code miscompilation when an rvalue was used as \
a default value of a named parameter of a function.
PFR:
Fixed reflection of types with missing const in SFINAE expressions in template \
constructor. Now reflection of aggregates with \
std::optional<std::chrono::duration<???>> fields works on any \
Standard Library implementation, even if LWG3050 is not fixed.
Comparison functions are now constexpr
Fixed numerous typos in docs
PolyCollection:
Worked around GCC bug affecting GCC versions 9.3-10.2.
Predef:
Version 1.13
Add ARCH_PPC_64 predef.
Fix ARCH_WORD_BITS* redefinition warnings/errors.
Add ARCH_E2K, Elbrus 2000, architecture from Konstantin Ivlev.
Fix not handling recent C++ version that go above 10.x version.
Version 1.12
Switch to using the endian.h header on OpenBSD. (Brad Smith)
Fix not handling recent versions of stdcxx that go above version 9.
Fix including sub-BSD OS headers directly causing redef warnings.
Add CI testing of direct inclusion of all headers.
Add CI testing on FreeBSD for clang and gcc.
Add WORD_BITS set of predefs to detect the architecture word size. Initial \
implementation inspired by submission from Mikhail Komarov.
Add CI testing for Cygwin 32 and 64.
PropertyTree:
Property Tree has a new maintainer.
Fix usage of deprecated Boost.Bind features.
Link to Wikipedia fixed.
Use BOOST_OVERRIDE to fix GCC warnings.
Add extensive CI testing.
Regex:
Regex is now header only except in C++03 mode.
Support for C++03 is now deprecated.
The library can now be used "standalone" without the rest of Boost \
being present.
Stacktrace:
Better support for pre-C++11 builds on clang.
Bigger warning for do not use boost::stacktrace::stacktrace in signal handlers.
TypeTraits:
Fix for Visual Studio managed code projects.
Variant2:
Improved generated code for the double buffered case.
Updated Tools
Build:
Includes release of B2 version 4.4.1.
|
| 2021-01-01 09:19:02 by Ryo ONODERA | Files touched by this commit (22) | |
Log message:
boost: Update to 1.75.0
Changelog:
1.75.0
New Libraries
* JSON: JSON parsing, serialization, and DOM in C++11, from Vinnie Falco and
Krystian Stasiowski.
+ Fast compilation requiring only C++11
+ Easy and safe modern API with allocator support
+ Compile without Boost, define BOOST_JSON_STANDALONE
+ Optional header-only, without linking to a library
* LEAF: A lightweight error-handling library for C++11, from Emil Dotchevski.
+ Small single-header format, no dependencies.
+ Designed for maximum efficiency ("happy" path and \
"sad" path).
+ No dynamic memory allocations, even with heavy payloads.
+ O(1) transport of arbitrary error types (independent of call stack
depth).
+ Can be used with or without exception handling.
* PFR: Basic reflection without macro or boilerplate code for user defined
types, from Antony Polukhin.
Updated Libraries
* Asio:
+ Enabled support for UNIX domain sockets on Windows.
+ Added executor-converting construction and assignment to ip::
basic_resolver.
+ Added compatibility between polymorphic executors and the (deprecated)
handler invocation hook.
+ Added the experimental::as_single completion token adapter.
+ Added support for MSG_NOSIGNAL on more platforms by using
_POSIX_VERSION to detect whether it is supported.
+ Added the ability to compile using libpthread on Windows.
+ Added workarounds for the Intel C++ compiler.
+ Added more support for detecting and optimising for handlers that have
no custom executor.
+ Reduced lock contention for timer cancellation on Windows.
+ Reinstated a previously removed null-pointer check, as it had a
measurable impact on performance.
+ Fixed the executor concept to test for a const-qualified execute().
+ Fixed any_executor support for builds without RTTI support.
+ Fixed the thread_pool unit test to work without RTTI support.
+ Fixed C++20 coroutines compatibility with clang on Windows.
+ Fixed some compatibility issues with Windows Runtime.
+ Fixed shadow name warnings caused by addition of asio::query.
+ Fixed a "logical ‘or’ of equal expressions" warning on linux.
+ Fixed a benign switch fallthrough warning.
+ Added missing push/pop_options.hpp includes.
+ Suppressed zero-as-null-pointer-constant warnings.
+ Fixed a comma-operator warning.
+ Updated the documentation to clarify when the select reactor is used on
Windows.
+ Fixed potential ambiguity caused by any_executor comparisons and
conversion.
+ Added detection of non-experimental C++20 coroutines on MSVC 19.8.
+ Fixed compatibility with uClibc.
+ Fixed strand<> adaptation of Networking TS executors when targeting
older C++ versions or less conformant compilers.
+ Consult the Revision History for further details.
* Atomic:
+ Implemented SSE2 and SSE4.1 versions of address lookup algorithm, which
is used in the internal lock pool implementation. This may improve
performance of waiting and notifying operations in heavily contended
cases.
+ Fixed a possible compilation error on AArch64 targets caused by
incorrect instructions generated for bitwise (logical) operations with
immediate constants. (#41)
* Beast:
+ This update brings bug fixes and support for the
BOOST_ASIO_ENBALE_HANDLER_TRACKING compile flag from Boost.Asio:
+ We'd love to know how you or your company use Beast, consider adding an
entry to the Companies and Individuals Using Beast list.
+ See the full Release Notes for a complete list of changes.
* Container:
+ New devector container.
+ Fixed bugs/issues:
o #152 Tree-based containers have troubles with move-only types.
o #156 Compile error with vector.
o PR#157 Add missing include.
o #159: pmr::monotonic_buffer_resource crashes on large single
allocations.
o #160: Usage of uses_allocator needs a remove_cvref_t.
o #162: small_vector on MSVC x86 call-by-value crash.
o #161: polymorphic_allocator(memory_resource*) non-standard
extension causes headache.
o PR#163: container_rebind for small_vector with options.
o #165: Link error with shared library and memory_resource inline
members.
o PR#166: Fix encoding error in copyright headers.
o PR#167: error: the address of 'msg' will always evaluate as 'true'
warning with GCC 4.4.
o #169: flood of warnings building dlmalloc_ext_2_8_6.c on clang11.
* Endian:
+ endian_arithmetic no longer inherits from endian_buffer
+ When BOOST_ENDIAN_NO_CTORS is defined, the unaligned endian_buffer and
endian_arithmetic are C++03 PODs, to enable use of __attribute__((
packed))
* Filesystem:
+ New: Added creation_time operation, which allows to obtain file
creation time. (Inspired by PR#134)
+ The returned value of last_write_time(p, ec) operation in case of
failure has been changed to a minimal value representable by std::
time_t instead of -1.
+ The returned value of hard_link_count(p, ec) operation in case of
failure has been changed to static_cast<uintmax_t>(-1) instead of 0.
+ On POSIX systems, file_size will now indicate error code errc::
function_not_supported if the path resolves to a non-regular file.
Previously, errc::operation_not_permitted was reported.
+ On Linux, many operations now use statx system call internally, when
possible, which allows to reduce the amount of information queried from
the filesystem and potentially improve performance. The statx system
call was introduced in Linux kernel 4.11.
+ Removed const-qualification from return types of some path methods.
This could prevent move construction and move assignment at the call
site in some cases. (#160)
+ On OpenBSD 4.4 and newer, use statvfs system call to obtain filesystem
space information. (Inspired by PR#162)
+ On Windows, space now returns with an error if the provided path does
not idendify an existing file. (#167)
* GIL:
+ BREAKING: In next release, we are going to drop support for GCC 5. We
may also change the required minimum C++ version from C++11 to C++14.
* Histogram:
+ This update brings
o Bug-fixes for corner-cases
o Small documentation improvements
o Fixes for new warnings from latest compilers and when compiling
against the C++20 standard
+ See the full Release Notes for a complete list of changes.
* Interprocess:
+ Fixed bugs:
o #127: static assertion failure with boost interprocess 1.74 and
basic_managed_shared_memory.
* Intrusive:
+ Fixed bugs:
o PR#48: MSVC "assignment within conditional" warning fix.
o PR#49: Fix empty control statement warnings.
o #52: Invalid casting in BOOST_INTRUSIVE_BSR_INTRINSIC.
* Log:
+ Bug fixes:
o Corrected the file counter that would be used in text_file_backend
when generating the target file name (based on the pattern set by
set_target_file_name_pattern method) when the log file is rotated.
(#125)
o Replaced a volatile version counter in basic_sink_frontend with an
atomic. (#128)
o In the asynchronous_sink frontend, resolved a possible conflict
between flush and run methods, if run is called from a user's
thread instead of the internal dedicated thread spawned by the
frontend. (#131)
+ See changelog for more details.
* Move:
+ Fixed bugs:
o #30: (void) C-cast is a non-portable way of suppressing compiler
warnings.
* Mp11:
+ Added mp_pairwise_fold (suggested by Barry Revzin)
+ Removed mp_invoke (use mp_invoke_q)
* Optional:
+ boost::none is constexpr-declared.
+ Fixed issue #78.
* Outcome:
+ Announcements:
o After a year and three major Boost releases announcing this
upcoming change, this is the FINAL RELEASE of the v2.1 branch. From
Boost 1.76 onwards, the v2.2 branch becomes the default. This
branch has a number of major breaking changes to Outcome v2.1, see
the documentation for details.
+ Enhancements:
o The ADL discovered event hooks have been replaced with
policy-specified event hooks instead. This is due to brittleness
(where hooks would quietly self-disable if somebody changed
something), compiler bugs (a difference in compiler settings causes
the wrong hooks, or some but not all hooks, to get discovered), and
end user difficulty in using them at all. The policy-specified
event hooks can be told to default to ADL discovered hooks for
backwards compatibility: set OUTCOME_ENABLE_LEGACY_SUPPORT_FOR to
less than 220 to enable emulation.
o Improve configuring OUTCOME_GCC6_CONCEPT_BOOL. Older GCCs had
boolean based concepts syntax, whereas newer GCCs are standards
conforming. However the precise logic of when to use legacy and
conforming syntax was not well understood, which caused Outcome to
fail to compile depending on what options you pass to GCC. The new
logic always uses the legacy syntax if on GCC 8 or older, otherwise
we use conforming syntax if and only if GCC is in C++ 20 mode or
later. This hopefully will resolve the corner case build failures
on GCC.
+ Bug fixes:
o Boost.Outcome should now compile with BOOST_NO_EXCEPTIONS defined.
Thanks to Emil, maintainer of Boost.Exception, making a change for
me, Boost.Outcome should now compile with C++ exceptions globally
disabled. You won't be able to use boost::exception_ptr as it can't
be included if C++ exceptions are globally disabled.
o #236 In the Coroutine support the final_suspend() was not noexcept,
despite being required to be so in the C++ 20 standard. This has
been fixed, but only if your compiler implements noop_coroutine.
Additionally, if noop_coroutine is available, we use the much more
efficient coroutine handle returning variant of await_suspend()
which should significantly improve codegen and context switching
performance.
* Polygon:
+ C++20 fixes for event_comparison_type, vertex_equality_predicate_type,
and voronoi_predicates. (Glen Fernandes)
* Preprocessor:
+ When variadic data is empty in C++20 mode with __VA_OPT__ support the
variadic size has been corrected to be 0. This also means that in this
C++20 mode it is now valid to convert to and from empty arrays and
lists and variadic data. The end-user can read the "C++20 Support For
Variadic Macros" part of the "variadic macros" topic for more
information about empty variadic data in the library.
+ The macro BOOST_PP_IS_STANDARD() has been added for identifying if the
currently used preprocessor is a C++ standard conforming preprocessor.
A number of preprocessors which generally work correctly with the
library but need various internal workarounds, including the currently
default VC++ preprocessor, are not considered C++ standard conforming
preprocessors. However most preprocessors, including among others gcc,
clang, and the new but currently non-default VC++ preprocessor in
VS2019, are C++ standard conforming preprocessors.
+ For C++ standard conforming preprocessors a number of the limits
defined in the config/limits.hpp can now be changed to higher amounts
for a TU. The end-user should read the "limitations" topic to
understand how and which limits can be changed.
+ For C++ standard conforming preprocessors, in order to allow the
maximum number of FOR and WHILE iterations, the beginning 'r' and 'd'
iteration numbers in the user-defined macros start at 1 and not 2, as
it did in previous releases. This could be a breaking change if these
iteration numbers are used in the user-defined macros ( they probably
would not be ), but the change was necessary to fix some arcane bugs
when dealing with numerical/logical operations with maximum numbers as
well to allow the user-defined macros to be called the correct possible
maximum number of times. For non-C++ conforming preprocessors, this
change was not made because those non-conforming C++ preprocessors
generally have limitations which disallow the maximum number of looping
constructs to be run, and it was felt not to introduce a possible
breaking change to those more fragile preprocessors would be better. It
was also felt that besides fixing some arcane preprocessor bugs and
providing the possible maximum number of user-defined macro
invocations, this change could be made because it has never been
documented what the starting 'r' and 'd' iteration numbers actually are
but only that these numbers are incremented for each iteration.
+ The library has been upgraded to assume variadic macro support for any
compiler working with the library. Ostensibly this means that the
library is now a C++11 on up library, yet most of the major compilers,
including gcc, clang, and VC++, also support variadic macros in C++98/
C++03 mode as long as strict compliance to C++98/C++03 is not turned on
when using one of those compilers.
* Rational:
+ Fix Rational operators to not break under new C++20 operator==
rewriting rules. (Glen Fernandes)
* Signals2:
+ Correct C++ allocator model support to fix compilation in C++20
standards mode. (Glen Fernandes)
* System:
+ The platform-specific headers windows_error.hpp, linux_error.hpp, and
cygwin_error.hpp emit deprecation messages and are slated for removal.
+ The old names for generic_category() and system_category() emit
deprecation messages and are slated for removal.
+ error_condition::failed is deprecated and is slated for removal.
operator bool() for error_condition has been reverted to its old
meaning of value() != 0. This is done for compatibility with std::
error_condition as the next release is expected to improve
interoperability with <system_error> even further. Note that this does
not affect error_code::failed, which is still alive and well.
+ The overload of error_condition::message that takes a buffer is
deprecated and is slated for removal, for the same reasons. Note that
this does not affect error_code::message.
* uBLAS:
+ Correct C++ allocator model support to fix compilation in C++20
standards mode. (Glen Fernandes and Conrad Poelman)
* VMD:
+ The VMD number parsing has been upgraded to support the ability for the
end-user to change the number limits in the Preprocessor library.
+ The macro BOOST_VMD_IS_GENERAL_IDENTIFIER has been added to support the
parsing of input that represents a preprocessor token which matches the
VMD identifier syntax, without having to register the identifier as a
specific identifier.
* Wave:
+ Added new C++20 tokens, including the spaceship operator <=>
+ Fixed bugs:
o #94: fix incorrect behavior of __LINE__ and __FILE__ under
rescanning
1.74.0
New Libraries
* STLInterfaces: A library of CRTP bases to ease the writing of STL views,
iterators, and sequence containers, from Zach Laine.
Updated Libraries
* Asio:
+ Added an implementation of the proposed standard executors (P0443r13,
P1348r0, and P1393r0).
+ Added support for the proposed standard executors to Asio's I/O
facilities.
o The supplied executors now meet the requirements for the proposed
standard executors. These classes also continue to meet the
existing requirements for the Networking TS model of executors.
o All I/O objects, asynchronous operations, and utilities will
interoperate with both new proposed standard executors, and with
existing Networking TS executors.
o The any_io_executor type alias has been introduced as the default
runtime-polymorphic executor for all I/O objects. This defaults to
the execution::any_executor<> template. If required for backward
compatibility, BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT can be defined
to use the old asio::executor polymorphic wrapper instead.
o Support for the existing Networking TS model of executors can be
disabled by defining BOOST_ASIO_NO_TS_EXECUTORS.
+ Added converting move construction and assignment to
basic_waitable_timer.
+ Enabled C++20 coroutine support when using gcc 10.
+ Added overloads of co_spawn that launch an awaitable.
+ Added a new constructor overload to use_awaitable_t's default executor
adapter, to enable conversion between executor types.
+ Added support for using detached_t as a default completion token, by
adding members as_default_on() and as_default_on_t<>.
+ Added a move constructor to ssl::stream<>.
+ Changed ssl::stream<> write operations to linearise gather-write buffer
sequences.
+ Added compile-time detection of the deprecated asio_handler_invoke,
asio_handler_allocate, and asio_handler_deallocate hooks, when
BOOST_ASIO_NO_DEPRECATED is defined.
+ Implemented a number of performance optimisations.
+ Added source location support to handler tracking.
+ Implemented various improvements to the handlerviz.pl tool.
+ Added the handlerlive.pl tool, which processes handler tracking output
to produce a list of "live" handlers.
+ Added the handlertree.pl tool, which filters handler tracking output to
include only those events in the tree that produced the nominated
handlers.
+ Added changes for clang-based Embarcadero C++ compilers.
+ Fixed a deadlock that can occur when multiple threads concurrently
initialise the Windows I/O completion port backend.
+ Fixed async_compose to work with copyable handlers when passed by
lvalue.
+ Fixed completion signature deduction in co_spawn.
+ Removed a spurious Executor base class from the executor_binder
implementation.
+ Various fixes and improvements in the documentation and examples.
+ Consult the Revision History for further details.
* Atomic:
+ Added missing const qualifiers to some operations in atomic_ref.
+ Added support for yield instruction on ARMv8-A. The instruction is used
internally in spin loops to reduce CPU power consumption.
+ Added support for C++20 waiting and notifying operations. The
implementation includes generic backend that involves the internal lock
pool, as well as specialized backends for Windows, Linux, FreeBSD,
DragonFly BSD and NetBSD. Atomic types provide a new method
has_native_wait_notify, a static boolean constant
always_has_native_wait_notify and a set of capability macros that allow
to detect if the implementation supports native waiting and notifying
operations for a given type.
+ Changed internal representation of atomic_flag to use 32-bit storage.
This allows for more efficient waiting and notifying operations on
atomic_flag on some platforms.
+ Added support for build-time configuration of the internal lock pool
size. The user can define the BOOST_ATOMIC_LOCK_POOL_SIZE_LOG2 macro to
specify binary logarithm of the size of the lock pool. The default
value is 8, meaning that the size of the lock pool is 256, up from 64
used in the previous release.
+ Added support for a new set of atomic types dedicated for inter-process
communication: ipc_atomic_flag, ipc_atomic and ipc_atomic_ref. Users
are recommended to port their code using non-IPC types for
inter-process communication to the new types. The new types provide the
same set of operations as their non-IPC counterparts, with the
following differences:
o Most operations have an added precondition that is_lock_free
returns true for the given atomic object. The library will issue a
compile time error if this precondition is known to be not
satisfied at compile time.
o All provided operations are address-free, meaning that the atomic
object (in case of ipc_atomic_ref - the referenced object) may be
located in process-shared memory or mapped into the same process at
multiple different addresses.
o The new has_native_wait_notify operation and
always_has_native_wait_notify constant indicate support for native
inter-process waiting and notifying operations. When that support
is not present, the operations are implemented with a busy loop,
which is less efficient, but still is address-free. A separate set
of capability macros is also provided to indicate this support.
+ Added new atomic_unsigned_lock_free and atomic_signed_lock_free types
introduced in C++20. The types indicate the atomic object type for an
unsigned or signed integer, respectively, that is lock-free and
preferably has native support for waiting and notifying operations.
+ Added new gcc assembler backends for ARMv8-A (for both AArch32 and
AArch64). The new backends are used to implement operations not
supported by compiler intrinsics (including 128-bit operations on
AArch64) and can also be used when compiler intrinsics are not
available. Both little and big endian targets are supported. AArch64
backend supports extensions defined in ARMv8.1 and ARMv8.3.
+ Added support for big endian targets in the legacy ARM backend based on
gcc assembler blocks (this backend is used on ARMv7 and older targets).
Previously, the backend assumed little endian memory layout, which is
significant for 64-bit operations.
+ Improved performance of seq_cst stores and thread fences on x86 by
using lock-prefixed instructions instead of mfence. This means that the
operations no longer affect non-temporal stores, which was also not
guaranteed before. Use specialized instructions and intrinsics to order
non-temporal memory accesses.
+ Fixed capability macros for 80-bit long double on x86 targets not
indicating lock-free operations even if 128-bit atomic operations were
available.
+ Fixed compilation of gcc asm blocks on Alpha targets.
+ In the gcc __sync* intrinsics backend, fixed that store and load
operations of large objects (larger than a pointer size) could be
non-atomic. The implementation currently assumes that small objects can
be stored with a single instruction atomically on all modern
architectures.
* Beast:
+ This update brings bug fixes and support for the following changes
changes in Boost.Asio:
+ Beast supports BOOST_ASIO_NO_DEPRECATED. Define this to help identify
areas of your Beast and Asio code which use deprecated Asio interfaces.
+ Beast also supports BOOST_ASIO_NO_TS_EXECUTORS. Define this to identify
uses of executors from the now potentially outdated Networking TS
+ Asio will use the Standard Executors model by default. You can prevent
this behaviour by defining BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT in
which the Networking TS model will be used by default. Setting this
flag does not prevent a program from using executors from the Standard
Executors model explicitly.
+ We'd love to know how you or your company use Beast, consider adding an
entry to the Companies and Individuals Using Beast list.
+ See the full Release Notes for a complete list of changes.
* Bimap:
+ Correct allocator usage (fixes C++20 compilation). (Glen Fernandes)
* Config:
+ Implement BOOST_NO_CXX11_OVERRIDE and BOOST_OVERRIDE. (Glen Fernandes)
* Core:
+ Implemented the allocator access utilities which provide a replacement
for allocator_traits with individual traits and functions for each
facility. They support the C++11 allocator model when possible and
provide a fallback for C++98 compatibility. These are now used in
Circular_Buffer, Wave, Lockfree, Heap, Smart_Ptr, Dynamic_Bitset,
Format, Bimap and more. (Glen Fernandes)
* DLL:
+ Multiple fixes for the library_info work on empty shared objects.
+ Compilation fixes for C++98 and C++11 modes (#28).
+ Fixes for smart_library manglings (thanks to XiaLiChao82 #37).
* Endian:
+ Enabled scoped enumeration types in endian_reverse.
+ Enabled bool, enum, float, double in endian_reverse_inplace.
+ Added an overload of endian_reverse_inplace for arrays.
* Filesystem:
+ Removed compile-time checks for support for symlinks and hardlink on
Windows. Instead, a runtime check is used. (PR#142)
+ Fixed handling of reparse points in canonical and read_symlink on
Windows. This also affects other algorithms that involve canonical and
read_symlink in their implementation. (PR#100, #85, #99, #123, #125)
+ Fixed that read_symlink on Windows could potentially fail or cause
failures elsewhere with a sharing violation error, if the same symlink
was opened concurrently. (#138)
+ Fixed that is_symlink(directory_entry) would always return false, even
if the directory entry actually referred to a symlink. (PR#148)
+ Added missing status inspection operation overloads for directory_entry
and error_code (e.g. is_directory(directory_entry, error_code&)).
Removed incorrect noexcept specifications for the overloads not taking
the error_code arguments.
+ copy_file implementation has been updated to perform checks on the
source and target files, as required by C++20 ([fs.op.copy.file]/4.1).
In particular, the operation will fail if the source or target file is
not a regular file or the source and target paths identify the same
file.
+ copy_file on POSIX systems will now also copy the source file
permissions to the target file, if the target file is overwritten.
+ New: Added copy_file implementations based on sendfile and
copy_file_range system calls on Linux, which may improve file copying
performance, especially on network filesystems.
+ Deprecated: The copy_option enumeration that is used with the copy_file
operation is deprecated. As a replacement, the new enum copy_options
(note the trailing 's') has been added. The new enum contains values
similar to the copy_options enum from C++20. The old enum values are
mapped onto the new enum. The old enum will be removed in a future
release.
+ New: Added copy_options::skip_existing option, which allows copy_file
operation to succeed without overwriting the target file, if it exists.
+ New: Added copy_options::update_existing option, which allows copy_file
operation to conditionally overwrite the target file, if it exists, if
its last write time is older than that of the replacement file.
+ New: copy_file now returns bool, which indicates whether the file was
copied.
+ New, breaking change: copy operation has been extended and reworked to
implement behavior specified in C++20 [fs.op.copy]. This includes
support for copy_options::recursive, copy_options::copy_symlinks,
copy_options::skip_symlinks, copy_options::directories_only,
copy_options::create_symlinks and copy_options::create_hard_links
options. The operation performs additional checks based on the
specified options. Applying copy to a directory with default
copy_options will now also copy files residing in that directory (but
not nested directories or files in those directories).
+ New: Added create_directory overload taking two paths. The second path
is a path to an existing directory, which is used as a source of
permission attributes to use in the directory to create.
+ Deprecated: copy_directory operation has been deprecated in favor of
the new create_directory overload. Note that the two operations have
reversed order of the path arguments.
+ equivalent on POSIX systems now returns the actual error code from the
OS if one of the paths does not resolve to a file. Previously the
function would return an error code of 1. (#141)
+ equivalent no longer considers file size and last modification time in
order to test whether the two paths refer to the same file. These
checks could result in a false negative if the file was modified during
the equivalent call.
+ New: Added absolute overloads taking error_code argument.
+ Operations that have current_path() as the default value of their
arguments and also have an error_code argument will use the
current_path(error_code& ec) overload to obtain the current path, so
that its failure is reported via the error_code argument instead of an
exception.
+ space now initializes the space_info structure members to -1 values on
error, as required by C++20 ([fs.op.space]/1).
+ space on Windows now accepts paths referring to arbitrary files, not
only directories. This is similar to POSIX systems and corresponds to
the operation description in C++20. (#73)
+ New: Added implementation of temp_directory_path for Windows CE. (PR#25
)
+ New: Improved compatibility with WASI platform. (PR#144)
+ New: Improved support for Embarcadero compilers. (PR#130)
+ New: Added implementations of unique_path operation based on getrandom
(Linux), arc4random_buf (OpenBSD/FreeBSD/CloudABI) and BCrypt (Windows)
system APIs.
+ Deprecated: Auto-linking against system libraries on Windows with
MSVC-compatible compilers is deprecated and will be removed in a future
release. This affects users linking against static library of
Boost.Filesystem. Users are advised to update their project build
systems to either use a shared library of Boost.Filesystem, or
explicitly specify the dependencies of Boost.Filesystem in the linker
command line. Users of shared library of Boost.Filesystem are not
affected.
* Flyweight:
+ Maintenance work.
* Format:
+ Correct allocator usage (fixes C++20 compilation). (Glen Fernandes)
* Geometry:
+ Improvements
o PR#720 Additional R-tree constructors (thanks to Caian Benedicto).
o Various improvements in buffer, set and relational operations.
+ Solved issues
o #709 memcpy called for object with no trivial copy-assignment.
o #721 Compilation error in bgi::detail::rtree::visitors::insert.
o #727 MSVC warning: conditional expression is constant.
+ Bugfixes
o PR#700 Missing cases for default strategies in distance algorithm.
o PR#738 Longitudes out of range in direct geodesic formulas.
* GIL:
+ Added
o Added new constructor initializing any_image from r-value reference
to any image (PR#486).
o Implemented mechanism to reverse kernel_2d (PR#489).
+ Changed
o BREAKING: Replace Boost.Variant with Boost.Variant2 (PR#474) which
completes removal on uses of Boost.MPL (missing from Boost 1.72.0
change added PR#274).
o Use perfect forwarding from apply_operation to visit (PR#491).
+ Removed
o BREAKING: Removed dependency on Boost.Variant
+ Fixed
o Fixed invalid conversion from RGB8 to CMYK32 due to overflow (PR#
470).
o Fixed image constructor from other image (PR#477).
o Fixed error plane_view_t is not a class or namespace name (PR#481).
o Fixed interleaved_view factory using point<std::ptrdiff_t> for
dimension (PR#487).
o Fixed documentation replacing uses MPL with MP11 in tutorial (PR#
494).
o Fixed missing header in numeric/kernel.hpp to make it
self-contained (PR#502).
+ Acknowledgements
o Samuel Debionne, Pranam Lashkari, Mateusz Loskot, Debabrata Mandal
* Heap:
+ Correct destruction of top node in skew_heap. (Glen Fernandes)
+ Correct and simplify allocator use. (Glen Fernandes)
* Integer:
+ Fixed compilation of gcd in C++20 mode with clang 10.
+ Improved support for Embarcadero compilers. (PR#21)
* Iterator:
+ boost/function_output_iterator.hpp header is now deprecated. Users
should replace its inclusion with boost/iterator/
function_output_iterator.hpp. (PR#51)
+ Improved support for Embarcadero compilers. (PR#55)
* LexicalCast:
+ Fixed warnings on missing override (thanks to EugeneZelenko #35, #34).
+ Fixes for the the Embarcadero compilers (thanks to Edward Diener).
* Log:
+ Bug fixes:
o The syslog sink backend now verifies the IP version of the local
and target addresses set by user. The addresses must have the same
IP version as was specified in the ip_version named parameter on
the sink backend construction (by default, IPv4 is assumed). When
an address is obtained as a result of host name resolution, only
addresses with matching IP version are considered. (#119)
+ New Features:
o Move constructors and assignment operators of various components
were marked noexcept.
o Added a new range_manip stream manipulator that can be used for
outputting elements of a range, optionally separated by a
delimiter.
o Added a new tuple_manip stream manipulator that can be used for
outputting elements of a tuple or any other heterogeneous sequence,
optionally separated by a delimiter.
o Added a new optional_manip stream manipulator that can be used for
outputting optionally present values.
+ See changelog for more details.
* Mp11:
+ Improved compilation performance of mp_with_index<N> for large N.
+ Added tuple_transform (contributed by Hans Dembinski.)
* Multi-index Containers:
+ Added node extraction and insertion following the analogous interface
of associative containers as introduced in C++17. This feature has also
been extended to non key-based indices, in contrast to C++ standard
library sequence containers, which do not provide such functionality.
+ Clarified documentation on read/write key extractors (issue #32).
+ Maintenance work.
* Nowide:
+ The library now requires a C++11-compliant compiler and stdlib
+ LFS: Add support for files > 2 GB where the underlying system supports
it
+ Generic UTF conversion functions are now available in the boost::nowide
::utf namespace
+ Add support for stat with UTF-8 paths
* Outcome:
+ Announcements:
o The v2.1 branch is expected to be retired end of 2020, with the
v2.2 branch becoming the default. You can use the future v2.2
branch now using better_optimisation. This branch has a number of
major breaking changes to Outcome v2.1, see the front page for
details.
+ Enhancements:
o BREAKING CHANGE void results and outcomes no longer default
construct types during explicit construction. Previously if you
explicitly constructed a result<T> from a non-errored \
result<void>,
it default constructed T. This was found to cause unhelpful
surprise, so it has been disabled.
o New macro OUTCOME_ENABLE_LEGACY_SUPPORT_FOR. The macro
OUTCOME_ENABLE_LEGACY_SUPPORT_FOR can be used to enable aliasing of
older naming and features to newer naming and features when using a
newer version of Outcome.
o Concepts now have snake case style naming instead of camel case
style. When Outcome was first implemented, it was thought that C++
20 concepts were going to have camel case style. This was changed
before the C++ 20 release, and Outcome's concepts have been renamed
similarly. This won't break any code in Outcome v2.1, as
compatibility aliases are provided. However code compiled against
Outcome v2.2 will need to be upgraded, unless
OUTCOME_ENABLE_LEGACY_SUPPORT_FOR is set to 210 or lower.
o Concepts now live in OUTCOME_V2_NAMESPACE::concepts namespace.
Previously concepts lived in the convert namespace, now they live
in their own namespace.
o New concepts basic_result<T> and basic_outcome<T> added. \
End users
were finding an unhelpful gap in between is_basic_result<T> and
value_or_error<T> where they wanted a concept that matched types
which were basic_result, but not exactly one of those. Concepts
filling that gap were added.
o Operation TRY works differently from Outcome v2.2 onwards. This is
a severely code breaking change which change the syntax of how one
uses OUTCOME_TRY(). A regular expression suitable for upgrading
code can be found in the list of changes between Outcome v2.1 and
v2.2.
+ Bug fixes:
o #224 The clang Apple ships in Xcode 11.4 (currently the latest) has
not been patched with the fixes to LLVM clang that fix noexcept(std
::is_constructible<T, void>) failing to compile which I originally
submitted years ago. So give up waiting on Apple to fix their
clang, add a workaround to Outcome.
o Spare storage could not be used from within no-value policy
classes. Due to an obvious brain fart when writing the code at the
time, the spare storage APIs had the wrong prototype which
prevented them working from within policy classes. Sorry.
* PolyCollection:
+ Fixed internal ambiguity problem between boost::type_erasure::any and
boost::any (issue #17).
+ Maintenance work.
* SmartPtr:
+ Added owner_equals to shared_ptr, weak_ptr, local_shared_ptr.
+ Added owner_hash_value to shared_ptr, weak_ptr.
+ Added owner_equal_to, owner_hash.
+ Added std::hash specializations for shared_ptr, local_shared_ptr.
+ Added boost::hash support to, and std::hash, std::equal_to
specializations for, weak_ptr.
* Stacktrace:
+ Fixed a build error when compiled with -fno-exceptions (thanks to
Jeremiah Rodriguez #91).
* System:
+ operator bool() now returns failed() instead of value() != 0.
* Type_Traits:
+ Implemented conjunction, disjunction, negation, is_trivially_copyable,
is_scoped_enum, and is_unscoped_enum. (Glen Fernandes)
* Variant:
+ Fixed warnings on missing override (thanks to EugeneZelenko #78).
+ Fixes for the the Embarcadero compilers (thanks to Edward Diener #79).
+ Updated header locations to avoid warnings about using deprecated
headers (thanks to Andrey Semashev #80)
* Variant2:
+ Added support for derived types in visit.
+ Improved compilation performance for many (hundreds of) alternatives.
+ Added support for visit<R>.
* Wave:
+ Implement C++20 features for variadics, including __VA_OPT__ (PR#75)
+ Implement __has_include (PR#102)
+ Introduce new sample: check_macro_naming, useful with Boost itself (PR#
97)
+ Fix compilation issue caused by std::allocator member removal in C++20
(PR#72)
+ Repair Xpressive lexer and token_statistics sample (PR#79)
+ Repair lexertl lexer (PR#78)
+ Ensure hooks are run on predefined macros as well (PR#87)
+ Various minor bug fixes
+ C++98/03 support is now deprecated and will be removed in 1.77
* YAP:
+ Fixed compilation errors for placeholders; they now work in the general
case, and in particular work with yap::print().
+ constexpr all the YAP.
+ Fix printing of correct value category in yap::print().
+ Doc clarification.
Updated Tools
* Boostbook:
+ Change encoding of generated documentation from US-ASCII to UTF-8.
(Glen Fernandes)
|
| 2020-10-02 10:08:26 by Michael Forney | Files touched by this commit (1) |
Log message:
boost: use more portable invocation of find(1)
The find -print0 and xargs -0 options are not supported by all
implementations. Instead, use the POSIX equivalent syntax
`find -exec ... {} +`, which is already in use by several of the
boost packages (boost-build, boost-docs, and boost-headers).
|
| 2020-09-10 09:54:52 by Tobias Nygren | Files touched by this commit (3) |
Log message: boost-headers: changed dirfd patch to be platform agnostic |
New packages: