Multiple opCasts

[Jarrett Billingsley]

"dsimcha" <dsimcha at yahoo.com> wrote in message 
news:g8po0h$2hen$1 at digitalmars.com...
> The discussion on builtin arrays and opImplicitCast has gotten me 
> thinking,
> why shouldn't it be possible to have more than one opCast (explicit cast)
> definition?  Yes, it's impossible to overload a function by return type.
> However, since the type that's being cast to is known at compile time and
> explicitly specified in the cast syntax, it could easily be done with 
> template
> specializations.  For example, on the struct side:
>
> struct Foo {
>    T opCast(T : float)() {
>        return 3.14159265;
>    }
>
>    T opCast(T : int)() {
>        return 1;
>    }
> }
>
> On the calling side:
>
> Foo foo;
> int i = cast(int) foo;  //equivalent to int i = foo.opCast!(int)().
> float f = cast(float) foo;  //equivalent to float f = foo.opCast!(float)()

No offense meant, but this has been proposed multiple times.