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From: "Ken Garlington" <Ken.Garlington@computer.org>
Newsgroups: comp.lang.ada
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Subject: Re: if statements
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Date: Thu, 09 Nov 2000 03:50:30 GMT
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Date: 2000-11-09T03:50:30+00:00
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"Alejandro Villanueva" <190921@cepsz.unizar.es> wrote in message
news:3A09A13F.CE7DF6EF@cepsz.unizar.es...
: Alejandro R. Mosteo wrote:
:
: > Hello. Here in Spain, my university (in Zaragoza) uses Ada as the
: > programming languaje in several subjects (all of them half academic
: > year duration):
: >
:
: Well, if you see my address you will see that I'm from the same Uni that
you...
:
: My final project is also with Ada95 running under RTEMS (the degree is
: industrial engineering, 5-year long)
:
: And now...
:
: procedure Swap (A, B: in out Integer) is
:    C: Integer;
: begin
:    if A > B then
:       C := B;
:       B := A;
:       A := C;
:    end if;
: end Swap;

Of course, this would violate the implied requirement that no code surround
the "if" statement. How about (assuming A and B are Integer):

if A > B then
  declare
    Original_B : constant Integer := B;
  begin
    B := A;
    A := Original_B;
  end;
end if;