parsing parameters

[BCS]

Hello Robert,

> BCS wrote:
> 
>> Theory 1: it's a side effect of two features:
>> 
>> this is allowed
>> 
>> int myFunc(int)  // I never use the arg so why name it?
>> {
>> }
>> and this is allowed
>> 
>> int myFunc(int i = 5)  // normal defaulting
>> {
>> }
>> so to avoid corner cases they are allowed in combination
>> 
>> theory 2:
>> 
>> it gives a function (with an anon arg, see above) that can be called
>> like this:
>> 
>> myfun(5);
>> 
>> and like this:
>> 
>> myfun();
>> 
> To elaborate, this would be useful for extern functions, i.e.
> 
> extern(C) int myFunc(int = 5);
> myFunc();  // Calls myFunc(5);
> myFunc(6);

Ah, and yet another use. I think that is an even better theory than either 
of mine.