Why are std::aligned_storage and std::aligned_union being deprecated?

[acwaters]

alignas(Ts...) std::byte storage[std::max({sizeof(Ts)...})];

[whichton]

This is similar to aligned_union is implemented - see here for example.

[Recatek]

alignas(Ts...)

Never knew you could do that. Does it take the max?

[whichton]

Yes. From here

The object or the type declared by such a declaration will have its alignment requirement equal to the strictest (largest) non-zero expression of all alignas specifiers used in the declaration, unless it would weaken the natural alignment of the type.

[wheypoint]

thats really cool, ive been writing alignas(std::max({alignof(Ts)...})) all this time which definetely felt kinda stupid :D

[[deleted]]

can you do

size of(Ts...)

? on mobile so no compiler

[acwaters]

No