On Thursday, 5 September 2019 at 08:16:08 UTC, Daniel Kozak wrote:
On Thu, Sep 5, 2019 at 9:55 AM berni via Digitalmars-d-learn
<digitalmars-d-learn@puremagic.com> wrote:
I still struggle with the concept of immutable and const:
> import std.stdio;
>
> void main()
> {
> auto p = Point(3);
> auto q = p.x;
> writeln(typeof(q).stringof);
> }
>
> struct Point
> {
> @property immutable long x;
> }
The type of q is immutable(long). But I need a mutable q. I
found
two ways:
a) long q = p.x;
b) auto q = cast(long)p.x;
Either way I've to specify the type "long" which I dislike
(here it's not a real burdon, but with more complicated types
it might be). Is there a way, to make q mutable without having
to write the type explicitly?
in this case you can just use:
auto q = cast()p.x;
or:
auto q = p.x + 0;
