How to do Generic function?

How to do Generic function?

[Robert Gelb]

I am trying to create a generic sort function that will accept as input an
array of integers or strings or floats and output that array sorted.  Is
there a way to do it in ADA?

Thanks in advance, 
Robert

Re: How to do Generic function?

[Doug Smith]

In article <4l4h1p$g6v@hatathli.csulb.edu>, rgelb@csulb.edu (Robert Gelb) wrote:

> I am trying to create a generic sort function that will accept as input an
> array of integers or strings or floats and output that array sorted.  Is
> there a way to do it in ADA?
> 
> Thanks in advance, 
> Robert

I don't do other people's homework when I can help it. But here is a
challenge:

  Implement the following generic and demonstrate a working instantiation:

  generic
    type Index is (<>); -- Usually an index into an array
    with procedure Less_Than (Left, Right : in Index); -- Compares array
elements
    with procedure Swap      (Left, Right : in Index); -- Swaps array elements
  procedure Sort (Starting_At : in Index := Index'First;
                  Ending_At   : in Index := Index'Last);

Doug.

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Re: How to do Generic function?

[Robert Dewar]

Robert Gelb says

"I am trying to create a generic sort function that will accept as input an
array of integers or strings or floats and output that array sorted.  Is
there a way to do it in ADA?"

As no doubt are your classmates working on the same assigment?
But perhaps they will write theirs in Ada instead!

Re: How to do Generic function?

[Robert Gelb]

Robert Dewar (dewar@cs.nyu.edu) wrote:
: "I am trying to create a generic sort function that will accept as input an
: array of integers or strings or floats and output that array sorted.  Is
: there a way to do it in ADA?"

:: As no doubt are your classmates working on the same assigment?
:: But perhaps they will write theirs in Ada instead!

	The reason I am asking for help is because I can't figure it out
on my own.
Robert

Re: How to do Generic function?

[Michael Quinn]

rgelb@csulb.edu (Robert Gelb) wrote:

>I am trying to create a generic sort function that will accept as input an
>array of integers or strings or floats and output that array sorted.  Is
>there a way to do it in ADA?

>Thanks in advance, 
>Robert

Yes,  You can create a generic with 2 supplied paramters:

1) a generic fomal type to define your array element type
2) a genric formal function to test for "less than"

Using these two generic parameters you can create a package that will
define your array data types, and your sort function.   Using this
method you may use any data type, as long as you can define an order
that you can test.

Michael T. Quinn
mtquinn@hom.net
   or 
MikeTQuinn@AOL.COM