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From: dewar@gnat.com
Subject: Re: Problems with ADA libraries
Date: 1998/11/06
Message-ID: <71teq8$q0q$1@nnrp1.dejanews.com>#1/1
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In article <3642143b.0@news1.mcmail.com>,
  "Bryan Stacey Couch" <staceycouch@yahoo.com> wrote:
> Hi!
>
> I am a student studying for my degree in the UK I am having problems with
> GNATS compiler for Windows 98.  I am trying to use the CALENDER packager but
> keep being told that it can't be found.  The file is in the library
> directory and I tried putting it in the same directory as the source file
> but to no avail.
>
> The code is as follows, it is going to be used as a timing package for an
> automated machine line.  This basic code doesn't do much I just wanted to
> check out how it worked.
>
> Any help would be much appreciated and I don�t want someone to WRITE THE
> CODE for me, just help with the compilation would be great.


It sure is a pity that you insisted on using the obsolete Ada 83 name for the
package instead of the proper Ada 95 name:

     1. with Ada.Calender; use Ada.Calender;
             |
        >>> "Ada.Calender" is not a predefined library unit
        >>> possible misspelling of "Ada.Calendar"

     2. procedure Time1 is
     3.    package Time_Io is new Fixed_Io(Day_Duration);
     4.    use Time_Io;
     5.    T:Day_Duration;
     6.    X:Float;
     7. begin
     8.    T:=Secound(Clock);
     9.    Time_Io.Put(T);
    10.    New_Line;
    11.    for Z in 1..1000 loop
    12.       X:=5.23234;
    13.    end loop;
    14.    T:=Secounds(Clock);
    15.    Time_Io.Put(T);
    16.    New_Line;
    17. end Time1;

We can't give such a warning for Calender, since it is just fine for you as a
user to define your own package called Calender (or misspelled any other way
you please), but you can't introduce your own children of Ada.

Robert Dewar
Ada Core Technologies

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