History

Boost-1.82.0

Added is_swappable trait.
Added a workaround for gcc 4.6 that allows is_nothrow_swappable to work.

Boost-1.70.0

Added new traits is_bounded_array, is_unbounded_array, copy_reference, copy_cv_ref.

Boost-1.68.0

Added support for detecting trivial moves on clang.
Correct some mismatched #pragam warning push/pop.
Improve is_virtual_base_of to give more robust answers.
Add support for is_final with msvc.

Boost 1.67.0

Added new traits detected, detected_or, is_detected, is_detected_convertible, is_detected_exact, is_complete.
Added greatly improved code for detecting binary operators.
Add assertions for completeness to traits which require complete types as arguments: this prevents various traits from giving eroneous results from incomplete types.
Fix minor issue with mpl compatibility, see #12212.
Add macro to indicate when is_constructible is fully implemented, see #12003.
Update is_function and is_member_function_pointer to work correctly with C++17 noexcept specifications.
Add workaround for is_default_constructible and std::pair.
Added fallback for is_nothrow_swappable on pre-C++11 compilers.

Boost 1.60.0

Refactored traits to depend only on Boost.Config. Greatly simplified code to improve readability and remove workarounds for old compilers no longer supported.
Fix decay to follow C++11 semantics, see #7760.
Added a number of new traits is_assignable, is_default_constructible, is_constructible and is_destructible required to fix bugs in a number of other traits, see for example #11324.

Boost 1.58.0

Fixed issue with CUDA on Clang compiler see #10694.
Fixed is_nothrow_move_assignable and is_nothrow_move_constructible to work on VC12 and later.

Boost 1.57.0

Added new traits is_copy_assignable and is_final.
Misc fixes for newer versions of clang and msvc-14.

Boost 1.54.0

Added new traits is_nothrow_move_assignable, is_nothrow_move_constructible, has_trivial_move_assign, has_trivial_move_constructor.

Boost 1.47.0

Breaking change: changed is_convertible to C++0x behaviour when possible.
Fixed issues #5271, #4530.

Boost 1.45.0

Added new traits add_rvalue_reference, add_lvalue_reference and common_type.
Minor fixes to is_signed, is_unsigned and is_virtual_base_of.

Boost 1.44.0

Added support for rvalue references throughout the library, plus two new traits classes is_rvalue_reference and is_lvalue_reference. Fixes #4407 and #3804.
Fixed ticket #3621.

Copyright © 2000, 2011 Adobe Systems Inc, David Abrahams, Frederic Bron, Steve Cleary, Beman Dawes, Glen Fernandes, Aleksey Gurtovoy, Howard Hinnant, Jesse Jones, Mat Marcus, Itay Maman, John Maddock, Alexander Nasonov, Thorsten Ottosen, Roman Perepelitsa, Robert Ramey, Jeremy Siek, Robert Stewart and Steven Watanabe

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

Boost C++ Libraries