On Thursday, 15 March 2018 at 11:33:49 UTC, Simen Kjærås wrote:
On Thursday, 15 March 2018 at 11:18:48 UTC, Robert-D wrote:
[...]
This is where things go wrong:
[...]
'inout' means that this function can keep the const, immutable
or mutable status of the type on which the function is called.
This means that an inout function has to treat the object as
const, because otherwise the function would break the
guarantees of immutable and const.
When using inout on a function, you always want to put inout on
something else too - either a ref parameter or the return
value. In your case, this works:
inout(S) dup() inout pure {
return inout(S)(aa);
}
--
Simen
I want the function to create a mutable copy from a const or a
imutable
Like this:
void main() {
const S s = S(["": ""]);
S b = s.dup();
}
How can i do that?
