pre-defined function convert hex to decimal?

pre-defined function convert hex to decimal?

[Sarah Thomas]

is there a pre-defined function in ada that converts hex to decimal,
or do I have to write from scratch? thanks

Re: pre-defined function convert hex to decimal?

[Robert A Duff]

"Beard, Frank Randolph CIV" <frank.beard@navy.mil> writes:

> Look at the Integer_IO routines, Put and Get, inside Ada.Text_IO.
> Pay particular attention to the "Base" parameter.  Try calling Put
> (to a File) with the base parameter set to your desired base, and
> then read that value back in with Get (from a File).  You can 
> do something similar with the Put/Get to/from string routines.

To/from a File?!  Surely you mean String.

Also, the 'Image and 'Value can also be used for hex-to-decimal
(but not the other way around).

- Bob

Re: pre-defined function convert hex to decimal?

[Gautier direct_replies_not_read]

>is there a pre-defined function in ada that converts hex to decimal,
>or do I have to write from scratch? thanks

You can use the 'Image and 'Value attributes. E.g.:

with Ada.Text_IO;
procedure Test_hex_to_dec is
begin
  Ada.Text_IO.Put( Integer'Image( Integer'Value("16#1A2B3C#") ) );
end;
________________________________________________________
Gautier  --  http://www.mysunrise.ch/users/gdm/gsoft.htm

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Re: pre-defined function convert hex to decimal?

[Marin David Condic]

Robert A Duff <bobduff@shell01.TheWorld.com> wrote in message
news:wccel9gdqsp.fsf@shell01.TheWorld.com...
> "Beard, Frank Randolph CIV" <frank.beard@navy.mil> writes:
>
> > Look at the Integer_IO routines, Put and Get, inside Ada.Text_IO.
> > Pay particular attention to the "Base" parameter.  Try calling Put
> > (to a File) with the base parameter set to your desired base, and
> > then read that value back in with Get (from a File).  You can
> > do something similar with the Put/Get to/from string routines.
>
> To/from a File?!  Surely you mean String.
>
> Also, the 'Image and 'Value can also be used for hex-to-decimal
> (but not the other way around).
>

It might be useful for a beginner to use a file at first to see what the
results look like. From there, obviously, its better to use a string for any
real work.

MDC
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