Flag proposal

[Daniel Murphy]

"Timon Gehr" <timon.gehr at gmx.ch> wrote in message 
news:it0oee$ehu$1 at digitalmars.com...
>
> What about allowing anonymous enums in parameter lists? Unfortunately that 
> would
> be a language feature. :)
>
> T someAlgorithm(..., enum {unsorted, sorted} sortOutput);
>
> To call: someAlgorithm(..., sorted); / someAlgorithm(..., unsorted);
>

Wow - I actually really like this!  It would provide an even _better_ 
solution than named arguments for this type of thing!

The best part is that it could degrade to the enum's base type when taking a 
function pointer, mangling the function's name and even inside the 
function's body!

void myfunction(enum : int { option1, option2, option3 } options)
{
    static assert(is(typeof(options) == int));
}
static assert(is(typeof(&myfunction) == void function(int));

myfunction(option2);