On Sun, 21 Nov 2010 20:21:14 -0500
bearophile <bearophileh...@lycos.com> wrote:
> If in a D2 program I have an array of mutable items I may want to iterate on
> them but not modify them, so I'd like the iteration variable to be const.
> This is possible, but it seems I lose type inference:
>
>
> void main() {
> int[3] array; // not const
> // foreach (const x; array) {} // Error
> // foreach (const auto x; array) {} // Error
> // foreach (const(int) x; array) {} // OK
> foreach (const(typeof(array[0])) x; array) {} // OK
> }
>
>
> Is something wrong in that code? Is this a known limitation, an inevitable
> one? Is this an enhancement request worth adding to Bugzilla?
>
> Bye and thank you,
> bearophile
Maybe you'll find it weird, but I would expect
foreach (const(auto) x; array) {};
to be the logical idiom for this. "auto" beeing a kind of placeholder for a
type name.
Presently yields the error:
__trials__.d(25): basic type expected, not auto
denis
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