[AIP-105][Discussion] Value manipulation move stdlib native utilities

[thepomeranian]

AIP Discussion

Summary

This AIP covers adding a set of new native functions, for value manipulation, that improve functionality and performance:

• mem::swap - Swaps contents of two mutable references.
• vector::move_range - (efficiently) Moves range of elements from one vector to another vector at specific position, keep the order of the rest of the elements.
• cmp::compare - Compares two move values of the same type.
• bcs::constant_serialized_size - If the type has known constant (always the same, independent of instance) serialized size in BCS format, allows obtaining it.

Out of scope

Only above utility functions are within scope.

Read more about it here: https://github.com/aptos-foundation/AIPs/blob/main/aips/aip-105.md