Linking D with C structs

[kinke]

On Monday, 29 June 2020 at 06:29:38 UTC, Anthony wrote:
> What does "__initZ" refer to?
> Does this refer to automatic initialization like "this()"?

Almost, it's the static initializer for that struct, which is 
omitted because you apparently don't compile/link the module 
containing the struct declaration. Initialize the char array with 
zeros (= 0) to make the struct fully zero-initialized, preventing 
the need for that symbol. chars in D are initialized with 0xFF, 
unlike byte and ubyte.