HELP HELP HELP PLEASE Ordinal Function

HELP HELP HELP PLEASE Ordinal Function

[Johnny]

Does anybody know the function to get the ASCII # for symbols in
ADA95?  Thnx

Re: HELP HELP HELP PLEASE Ordinal Function

[Ehud Lamm]

On Mon, 14 Dec 1998, Johnny wrote:

> Does anybody know the function to get the ASCII # for symbols in
> ADA95?  Thnx
> 
If this is not in the FAQ, it should be there.

Remember that in Ada the character type is simply an enumeration type,
ordered by ASCII values (what happens on EBCDIC, I don't know). So you can
use the attributes enumeration types support. Like character'pos('A')

Enjoy

Ehud Lamm     mslamm@mscc.huji.ac.il
http://www2.cybercities.com/e/ehud/ada   Ada & SE resources

Re: HELP HELP HELP PLEASE Ordinal Function

[Matthew Heaney]

John_Lin@paramount.com (Johnny) writes:

> Does anybody know the function to get the ASCII # for symbols in
> ADA95?  Thnx

declare
  C : Character := ...;
begin
  <ascii#> := Character'Pos (C);
end;

You can go the other way by using Character'Val (<ascii#>);

Re: HELP HELP HELP PLEASE Ordinal Function

[Johnny]

On Mon, 14 Dec 1998 03:55:44 GMT, Matthew Heaney
<matthew_heaney@acm.org> wrote:

>John_Lin@paramount.com (Johnny) writes:
>
>> Does anybody know the function to get the ASCII # for symbols in
>> ADA95?  Thnx
>
>declare
>  C : Character := ...;
>begin
>  <ascii#> := Character'Pos (C);
>end;
>
>You can go the other way by using Character'Val (<ascii#>);


Thank You Very Very Much,
Will implement the Character'Pos tonight, Thanks to your help,
Thank goodness for Usenet and nice people

Re: HELP HELP HELP PLEASE Ordinal Function

[Johnny]

On Mon, 14 Dec 1998 03:55:44 GMT, Matthew Heaney
<matthew_heaney@acm.org> wrote:

>John_Lin@paramount.com (Johnny) writes:
>
>> Does anybody know the function to get the ASCII # for symbols in
>> ADA95?  Thnx
>
>declare
>  C : Character := ...;
>begin
>  <ascii#> := Character'Pos (C);
>end;
>
>You can go the other way by using Character'Val (<ascii#>);


Would you happen to know if Character'Val and Character'pos are in the
Standard IO_Text Package?  My book is ADA95  by feldman and Koffman
2nd edition it does not list these functions in its text_io or
standard packages.  

Re: HELP HELP HELP PLEASE Ordinal Function

[Markus Rogawski]

Johnny schrieb:

> Would you happen to know if Character'Val and Character'pos are in the
> Standard IO_Text Package?  My book is ADA95  by feldman and Koffman
> 2nd edition it does not list these functions in its text_io or
> standard packages.

These are standart attributes, not Text_Io functions.
See Ada Reference Manual 4.1.4 and 3.5.5

Greetings

Markus

Re: HELP HELP HELP PLEASE Ordinal Function

[Matthew Heaney]

John_Lin@paramount.com (Johnny) writes:

> Would you happen to know if Character'Val and Character'pos are in the
> Standard IO_Text Package?  My book is ADA95  by feldman and Koffman
> 2nd edition it does not list these functions in its text_io or
> standard packages.  

You need an Ada RM.  Go to adahome page and follow the links to an
online reference manual.

<http://www.adahome.com/> 

No, Character'Pos and 'Val are not "in" Text_IO.  You don't seem to
understand the concept of an attribute.  Read about type attributes in
the Feldman book, or another.  (There are tutorials at the adahome
page.)

Re: HELP HELP HELP PLEASE Ordinal Function

[Johnny]

On Mon, 14 Dec 1998 04:19:20 GMT, John_Lin@paramount.com (Johnny)
wrote:

>On Mon, 14 Dec 1998 03:55:44 GMT, Matthew Heaney
><matthew_heaney@acm.org> wrote:
>
>>John_Lin@paramount.com (Johnny) writes:
>>
>>> Does anybody know the function to get the ASCII # for symbols in
>>> ADA95?  Thnx
>>
>>declare
>>  C : Character := ...;
>>begin
>>  <ascii#> := Character'Pos (C);
>>end;
>>
>>You can go the other way by using Character'Val (<ascii#>);


Thank You Very Very Much,
Will implement the Character'Pos tonight, Thanks to your help,
Thank goodness for Usenet and nice people

>
>
>Would you happen to know if Character'Val and Character'pos are in the
>Standard IO_Text Package?  My book is ADA95  by feldman and Koffman
>2nd edition it does not list these functions in its text_io or
>standard packages.  

Re: HELP HELP HELP PLEASE Ordinal Function

[Johnny]

On Mon, 14 Dec 1998 04:19:20 GMT, John_Lin@paramount.com (Johnny)
wrote:

>On Mon, 14 Dec 1998 03:55:44 GMT, Matthew Heaney
><matthew_heaney@acm.org> wrote:
>
>>John_Lin@paramount.com (Johnny) writes:
>>
>>> Does anybody know the function to get the ASCII # for symbols in
>>> ADA95?  Thnx
>>
>>declare
>>  C : Character := ...;
>>begin
>>  <ascii#> := Character'Pos (C);
>>end;
>>
>>You can go the other way by using Character'Val (<ascii#>);
>
>
>Would you happen to know if Character'Val and Character'pos are in the
>Standard IO_Text Package?  My book is ADA95  by feldman and Koffman
>2nd edition it does not list these functions in its text_io or
>standard packages.  

Thank You for your help