Converting a number to complex

[Artur Skawina]

On 11/24/12 12:30, Philippe Sigaud wrote:
> 
>     Unfortunately the is-expressions don't handle aliases properly, at least
>     with my old compiler here. So this does not work:
> 
>        template isTempInst(alias TEMPL, T) {
>           static if (is(T _ == TEMPL!CT, CT))
>              enum isTempInst = true;
>           else
>              enum isTempInst = false;
>        }
> 
> 
> Works for me:
> 
> 
> template isTempInst(alias TEMPL, T)
> {
>     static if (is(T _ == TEMPL!CT, CT...))
>         enum isTempInst = true;
>     else
>         enum isTempInst = false;
> }
>    
> void main()
> {
> 
>     Tuple!(int,string) t = tuple(1, "abc");
>     writeln(typeof(t).stringof);
>     writeln(isTempInst!(Tuple, typeof(t)));
> }
> 
> (DMD 2.060)

Then it's probably just my old compiler, gdc r748:ab99d67f04c2, using dmd 2.057, 
which thinks that that is-expression is always false.

artur