Re: Naturals and discrete types

["Matthew Heaney" <mheaney@on2.com>]

"Clueless" <chris@dont.spam.me> wrote in message
news:oGjE7.221593$K6.106487221@news2...
> The Ada.Command_Line package returns a Natural type, however I've been
> attempting to count the arguments using the Range attribute which expects
> a discrete type.

The 'Range attribute describes the range of values in a scalar type.  If you
want to know you many command line arguments there are, call Argument_Count.

> What I've been doing is converting the Natural to an Integer using the
> Value attribute. Sometimes this works, and sometimes I get an Exception.

Huh?  Natural is already an Integer (it's a subtype).


> Is it possible to get the 'Range function to accept a Natural type? Or am
> I trekking down the wrong path entirely? It seems there has to be a better
> way to do this.

You seem to be confused...

> Also, I've been checking my Ada docs to find out if the Natural type is
> considered to be a Discrete or Real type by the GNAT compiler, but I
> havent found any specific info yet. Although the compiler messages
> certainly seem to indicate that Natural is a subtype of Real.

It's a discrete type.