Andrey Semashev cbe50fe500 Restore compatibility with older gcc versions. ...

Added is_trivially_copyable and is_trivially_default_constructible type
traits that rely on the non-standard type traits available in libstdc++
from gcc 4.8 and 4.9.

Rather than requiring cxx11_hdr_type_traits in the library and test
requirements, use a more limited test that checks only the type traits
we use in Boost.Atomic.

Similarly, downgrade the requirement of C++ unrestricted unions to
unions with members that have non-trivial default constructors.

Remove the requirements of alignas and alignof, since those are not
mandatory for now.

Closes https://github.com/boostorg/atomic/issues/74.

2025-06-18 19:09:03 +03:00

..

workflows

Restore compatibility with older gcc versions.

2025-06-18 19:09:03 +03:00