On Tuesday, 24 November 2020 at 21:52:47 UTC, Dibyendu Majumdar
wrote:
On Sunday, 15 November 2020 at 20:05:16 UTC, Paul Backus wrote:
SumType is a generic discriminated union type for modern D. It
is designed to
be an improved alternative to `std.variant.Algebraic`.
Nice. Is it possible to describe how these types are
represented in memory? Anyone who uses unions and wants to use
these would want to know whether these types are laid out like
unions or not. What is the size of the type - is it equal to
the largest member?
SumType uses a union internally, so the types all share the same
memory. The size of the SumType is equal to the size of the union
plus the size of the tag (plus padding, if necessary).
