core/doc/changes.qbk
2022-12-01 13:59:53 +02:00

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[/
Copyright 2021 Peter Dimov
Distributed under the Boost Software License, Version 1.0.
https://boost.org/LICENSE_1_0.txt)
]
[section Revision History]
[section Changes in 1.80.0]
* `empty_value` members are now marked as `constexpr`.
* Added `fclose_deleter`, a deleter that calls `std::fclose` on a pointer to `std::FILE`.
* Bit manipulation utilities in `boost/core/bit.hpp` now explicitly require unsigned integers on input.
([@https://github.com/boostorg/core/issues/129 #129])
* `bit_width` now returns `int` instead of a value of the input argument type. This follows the
resolution of [@https://cplusplus.github.io/LWG/issue3656 LWG3656].
[endsect]
[section Changes in 1.79.0]
* Added `boost::allocator_traits`, an implementation of `std::allocator_traits`.
* Made `boost::pointer_traits` SFINAE friendly.
* `boost/iterator.hpp` is deprecated and will be removed in a future release. The header defines the
`boost::iterator` template, which is equivalent to `std::iterator` in the `<iterator>` header. However,
since `std::iterator` is itself deprecated in C++17, users are advised to remove the use of `boost::iterator`
or `std::iterator` from their code.
* Added `boost::core::verbose_terminate_handler`, a utility function intended
to be passed to `std::set_terminate` that prints information about the
uncaught exception to `stderr`.
[endsect]
[section Changes in 1.78.0]
* Added a generic implementation to `boost/core/cmath.hpp`, enabled when `BOOST_CORE_USE_GENERIC_CMATH`
is defined or when the platform does not provide the necessary facilities in `<cmath>`.
* Added `boost::core::type_name`, a utility function that returns the name of a type as a string.
* Added `boost::span`, a C++11 implementation of C++20's `std::span`.
[endsect]
[section Changes in 1.77.0]
* `boost/core/uncaught_exceptions.hpp` has been modified for compatibility with Mac OS 10.4 and older.
[endsect]
[section Changes in 1.76.0]
* Added implicit conversion between compatible reference wrappers.
* Added `boost/core/cmath.hpp`, a portable implementation of the floating point classification functions from `<cmath>`.
* Added `boost/core/bit.hpp`, a portable implementation of the C++20 standard header `<bit>`.
* Fixed `BOOST_TEST_EQ`, `BOOST_TEST_NE` for character types under C++20.
* Revised allocator access utilities (now support VS2013, and no workarounds use `allocator_traits`.)
[endsect]
[section Changes in 1.74.0]
* 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.
* Added `BOOST_TEST_WITH` to Lightweight Test.
[endsect]
[section Changes in 1.71.0]
* Added functions `alloc_construct`, `alloc_construct_n`, `alloc_destroy`, and `alloc_destroy_n`
in `<boost/core/alloc_construct.hpp>` for allocator aware and exception safe construction and
destruction of objects and arrays.
* Added constexpr functions `first_scalar` in `<boost/core/first_scalar.hpp>` for obtaining a pointer
to the first scalar element of an array. Given a pointer of type `T*` they return a pointer of type
`remove_all_extents_t<T>*`.
* Added class template `noinit_adaptor` in `<boost/core/noinit_adaptor.hpp>` which is an allocator adaptor
that converts any allocator into one whose `construct(ptr)` performs default initialization via placement
`new`, and whose `destroy(ptr)` invokes the `value_type` destructor directly.
* Added class template `default_allocator` in `<boost/core/default_allocator.hpp>`, which can serve as a minimal
default allocator that has interface similar to C++20 `std::allocator`, supports configurations with disabled
exceptions and does not have `std` as an associated namespace. The allocator uses `operator new` and
`operator delete` for allocation.
* In `<boost/core/uncaught_exceptions.hpp>` header, added workarounds for better compatibility with QNX SDP 7.0
when libc++/libc++abi libraries are used.
* The `<boost/detail/sp_typeinfo.hpp>` header is now marked as deprecated and will be removed in a future release.
`<boost/core/typeinfo.hpp>` should be used instead.
[endsect]
[section Changes in 1.69.0]
* Implemented `boost::empty_value`, for library authors to conveniently leverage the Empty Base Optimization to
store objects of potentially empty types.
* Implemented `boost::quick_exit` to provide the C++11 standard library facility `std::quick_exit` functionality.
* Reduced the number of statics in Lightweight Test, and employ lighter abort behavior for MSVC compilers upon
failure to call `boost::report_errors`.
[endsect]
[section Changes in 1.67.0]
* Updated `to_address` and `pointer_traits` to reflect the design adopted for C++20 in
[@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0653r2.html P0653R2].
[endsect]
[section Changes in 1.65.0]
* Implemented `pointer_traits` for C++03 and higher, that implements
[@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0653r0.html P0653r0].
* Added `BOOST_TEST_GT` and `BOOST_TEST_GE` to Lightweight Test.
[endsect]
[endsect]