From: lius@beach.cis.ufl.edu (Scott Liu)
Subject: Side effect
Date: 9 Apr 88 02:05:54 GMT [thread overview]
Message-ID: <14425@uflorida.cis.ufl.EDU> (raw)
Recently, I wrote an Ada program with side effect on a function,
called NEXT, which is used on both type and variable declarations.
I got very weird program output when I ran it using TeleSoft Ada
compiler. Is this a compilation error or compiler-dependent feature?
Thanks for your comments.
Sying-Syang Liu
Dept. of Computer and Information Sciences
University of Florida
UUCP: {ihnp4,rutgers}!codas!ufcsv!lius
Internet mail: lius@ufl.edu
------ Program source -------------
with TEXT_IO; use TEXT_IO;
procedure SET2 is
ID:INTEGER:=0;
function NEXT return INTEGER is
begin
ID:=ID+1;
return ID;
end;
begin
declare
type BIG is record X:INTEGER:=NEXT; end record; -- ???
A:array (1..5) of BIG; -- ???
B:integer:=NEXT;
begin
for I in A'RANGE loop
PUT(INTEGER'IMAGE(A(I).X));
end loop;
PUT_LINE(INTEGER'IMAGE(B));
end;
end;
----- Program output -----
1 2 3 4 5 6
--------------------------
Note: I expected to have the output
1 1 1 1 1 2
next reply other threads:[~1988-04-09 2:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1988-04-09 2:05 Scott Liu [this message]
1988-04-09 6:58 ` Side effect Richard A. O'Keefe
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