On 05/16/2014 01:28 PM, Joshua Niehus wrote:
> trying to follow:
> http://ddili.org/ders/d.en/class.html
>
> //--- OSX 10.9 DMD 2.065
> module test;
>
> class Foo {
> int num;
>
> this(int num) {
> this.num = num;
> }
>
> Foo dup() const {
> return new Foo(this.num);
> }
>
> immutable(Foo) idup() const {
> return new immutable(Foo)(this.num);
> }
> }
>
> void main() {
> auto foo = new Foo(1);
> auto mfoo = foo.dup();
> auto ifoo = foo.idup();
> }
>
> * test.d(15): Error: mutable method test.Foo.this is not callable
> using a immutable object
> * test.d(15): Error: no constructor for Foo
> * Failed: ["dmd", "-v", "-o-", "test.d", "-I."]
> //---
>
> What am i missing?
My apologies. The code was written for an older version of dmd. The
simplest fix is to define the constructor as pure:
pure this(int num) {
this.num = num;
}
Ali
