Proposal: Reference Variables
Hasan Aljudy
hasan.aljudy at gmail.com
Fri Apr 7 00:56:39 PDT 2006
S. Chancellor wrote:
> I would like to suggest the following variable type added to D as a
> supplement to pointers. Please review the following code and suggest
> modifications and additions as you see.
>
> Thanks!
>
> -S.
>
> Oh yes, and please assume all the following asserts PASS.
>
>
> long x = 2;
> long& y = &x;
>
> assert(y == 2);
>
> y = 4;
>
> assert(x == 4);
>
> assert(&y == &x); //Notice the change in the operation of &. Not a
> handle to x!
>
> long z = 5;
>
> &y = &z; //& Allows l-value assignment,
>
> assert( y == 5 );
>
> assert( &y == &z );
>
> assert(y.sizeof == z.sizeof); //Sizeof gives information on referenced
> type, not reference. Ditto for other properties
>
While I like the idea of references and refernce semantics for things
like structs and whatnot, I think the C++ & operator is the *wrong* way
to do it.
More information about the Digitalmars-d
mailing list