When can we expect support for the standard type properties in g++? libstdc++ provides support for most of the type properties, with some requiring support from special GNU extensions. However, it would be nice to have complete support for <type_traits>, and I am wondering when that will be. I tried inquiring the libstdc++ mailing list, but unfortunately received no response.
If you are wondering which type properties are lacking support, here are some of them:
Missing is_trivially_copyable, is_assignable, is_copy_assignable, is_move_assignable, is_trivially_constructible, is_trivially_default_constructible, is_trivially_copy_constructible, is_trivially_move_constructible, is_trivially_assignable, is_trivially_default_assignable, is_trivially_copy_assignable, is_trivially_move_assignable, is_trivially_destructible, is_nothrow_assignable, is_nothrow_copy_assignable, is_nothrow_move_assignable, is_nothrow_destructible
Source: search for "Type properties" here.
Thanks for your help!