From: Vance Christiaanse <cintech@ix.netcom.com>
Subject: Primitive Operations Question
Date: 1996/07/30
Date: 1996-07-30T18:39:28-07:00 [thread overview]
Message-ID: <31FE812C.7B3D@ix.netcom.com> (raw)
Hello!
Much to my dismay, the following procedure compiles on the WebAda
(GNAT 3.04) compiler. By my reading of RM95 3.2.3, A and B don't
fit any part of the definition of primitive operations, so I
don't see why iheritance seems to be occurring. When I replace
all three types with a hierarchy of tagged types, both calls
fail to compile, as I would have expected.
Any insight would be much appreciated.
Thanks,
Vance Christiaanse
Cintech Consulting
cintech@ix.netcom.com
procedure Example is
type My_Digit is range 0..7;
procedure A (V : My_Digit);
type New_Digit is new My_Digit; -- is A inherited???
procedure B (W : New_Digit);
N : New_Digit := 1;
type Newer_Digit is new New_Digit; -- is B inherited???
M : Newer_Digit := 1;
procedure A (V : My_Digit) is
begin
null;
end A;
procedure B (W : New_Digit) is
begin
null;
end B;
begin
A(N);
B(M);
end Example;
next reply other threads:[~1996-07-30 0:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-07-30 0:00 Vance Christiaanse [this message]
1996-07-31 0:00 ` Primitive Operations Question Robert A Duff
1996-07-31 0:00 ` Vance Christiaanse
1996-08-01 0:00 ` Robert A Duff
1996-08-01 0:00 ` Vance Christiaanse
1996-07-31 0:00 ` Jon S Anthony
1996-07-31 0:00 ` Tucker Taft
1996-07-31 0:00 ` Samuel Tardieu
1996-08-01 0:00 ` Jon S Anthony
1996-08-01 0:00 ` Robert A Duff
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