Infer return type from assignment

[Steven Schveighoffer]

On 4/11/18 10:26 AM, ixid wrote:
> Is it possible to infer a template's return type from what it's assigned 
> to? If not is this a difficult or worthless feature to add?
> 
> OUT fun(IN, OUT)(IN value) {
>      return value.to!OUT;
> }
> 
> void main() {
>      float a = 5.0;
>      int b = fun(a);
> }

Sort of:

void fun(IN, OUT)(IN value, out OUT result)
{
    result = value.to!OUT;
}

Other than that, it doesn't work.

-Steve