Re: passing a parrameter read-only ref?

[Paul Backus via Digitalmars-d-learn]

On Sunday, 13 September 2020 at 13:35:15 UTC, Martin wrote:

Hi,
i would like to create a function which takes the first 
parameter as a reference to a struct - but assure the calle 
that the reference is read-only. Can this be done?


Yes, you can do this with `ref const`.

passing a parrameter read-only ref?

[Martin via Digitalmars-d-learn]

Hi,
i would like to create a function which takes the first parameter 
as a reference to a struct - but assure the calle that the 
reference is read-only. Can this be done?


If i am not mistaken, then the "in" Parameter Storage Class is 
what i want(?). But the documentation states that this feature 
should not be used.


For context: I want to write struct-methods outside the struct 
(like in golang).