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From: "SteveD" <nospam_steved94@attbi.com>
Newsgroups: comp.lang.ada
References: <at6t3k$n63$1$830fa7a5@news.demon.co.uk>
Subject: Re: Help - time to string query
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"TAMS Team" <tamsteam@rolls-royce-rps.demon.co.uk> wrote in message
news:at6t3k$n63$1$830fa7a5@news.demon.co.uk...
> Hi!
>
> Hopefully this is a very simple question (from a very simple programmer!).
> I'm using a parameter of type ada.real_time.time in my program and I need
to
> be able to convert this into a string.  Can't suss how to achieve this,
and
> it's getting to the brick wall/head banging stage.  I'm sure I should be
> using something like 'image, but can't figure out how to do it.
>
> How do I do it?!

Ada provides two packages for dealing with time: Ada.Calendar and
Ada.Real_Time.
If you want to deal with time as in time of day use Ada.Calendar.  If you
want to deal with time as in measuring or delaying for precise times use
Ada.Real_Time.

Time values returned from Ada.Real_Time reflect the time since "epoch" (LRM
A.8.28) which may have no particular relation to the time of day.

The difference between two Ada.Real_Time.Time values is calculated using the
"-" operator and results in a value of type Ada.Real_Time.Time_Span.  The
function Ada.Real_Time.To_Duration can be used to convert a time span to a
"Duration" which may be converted to a floating point value of seconds.

I often use Ada.Real_Time to do precise timing.  Forr example:

   start_Time := Ada.Real_Time.Clock;
   for I in A'range loop
      Processing( A(I) );
   end loop;
   End_Time := Ada.Real_Time.Clock;
   Text_Io.Put( "Time for array based loop is " );
   Float_Text_Io.Put( Float( Ada.Real_Time.To_Duration( end_Time -
Start_TIme ) ), 3, 5, 0 );
   Text_Io.New_Line;

Oh, and sorry if I'm off target on what you're asking.

Steve
(The Duck)

> Cheers,
>
> Mike Clarke
>
>