Re: [Vala] delegates in vala

[Albert Hopkins <marduk letterboxes org>]

On Wed, Feb 13, 2013, at 01:49 PM, Albert Hopkins wrote:
[...]
>     MyDel del;
>     ...
>     del = randValue > 50 ? program.PrintLow : program.PrintHigh;
>
> However this gives me a compile error:
>
> delegate.vala:21.32-21.47: error: Assignment: Cannot convert from
> `Program.PrintLow' to `Program.PrintLow'
>         del = randValue < 50 ? program.PrintLow : program.PrintHigh;
>                                ^^^^^^^^^^^^^^^^
> delegate.vala:21.51-21.67: error: Assignment: Cannot convert from
> `Program.PrintHigh' to `Program.PrintHigh'
>         del = randValue < 50 ? program.PrintLow : program.PrintHigh;
>                                                   ^^^^^^^^^^^^^^^^^
> delegate.vala:21.15-21.28: error: Incompatible expressions
>         del = randValue < 50 ? program.PrintLow : program.PrintHigh;
>               ^^^^^^^^^^^^^^
> Compilation failed: 3 error(s), 0 warning(s)

This works:

    (randValue < 50)?  del = Program.PrintLow: del = Program.PrintHigh;

Although I would like to understand better why the former does not.

-a