Re: Trivial Ada question

["David C. Hoos, Sr." <david.c.hoos.sr@ada95.com>]

How about

All_OK : Boolean;
.
.
.
All_OK := True;
for I in A'Range loop
   if not some condition (I) then
      All_OK := False;
      exit;
   end if;
end loop;
if ALL_OK then
  N := N + 1;
end if;

----- Original Message ----- 
From: "Reinert Korsnes" <reinert.korsnes@chello.no>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: June 28, 2002 4:07 AM
Subject: Trivial Ada question


> Hi,
> 
> I would like to ask about a program construct:
> 
> I want to test if some condition holds for all values
> of I in A'range and in this case the variable
> N should be incremented by one ( N := N + 1; ).
> How can I do this most elegant and effective with Ada95
> (without "goto") ?
> Assume I do not want to make a separate subroutine for this.
> 
> This example is simple but not computationally optimal (two tests):
> 
>     for I in A'range loop
>         exit when "not some condition(I);
>         if I = A'last then
> -- Everything OK to the end:
>            N := N + 1;
>         end if;
>     end loop;
> 
> This example is ugly but more computationally optimal (one test):
> 
>     for I in A'range loop
>         if "not some condition(i)" then
>            N := N - 1;
>            exit;
>         end if;
>     end loop;
>     N := N + 1;
> 
> Tricks by "named loops" also seem ugly.
> 
> reinert
> 
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