From: smoore@chowgar.demon.co.uk (Simon Moore)
Subject: Strange problem in GNAT 3.04 Win 95
Date: 1996/10/24
Date: 1996-10-24T00:00:00+00:00 [thread overview]
Message-ID: <32707cd0.8077937@news.demon.co.uk> (raw)
Hello all
If anybody has got the time could they please take a look at the
listing below. The code seems syntactically and semantically correct
but doesn't perform as it should.
When 2 is selected you don't get the chance to input a character
although option 1 works fine.
But, if you un-coment the get(c) before the case statement the program
works fine. It doesn't bother with that get(c) but the one inside the
case statement does.
Any ideas?
-- ** Program listing ** --
with gnat.io; use gnat.io;
procedure t1 is
choice: INTEGER;
n: NATURAL;
c: CHARACTER;
quitflag: BOOLEAN:= FALSE;
BEGIN
WHILE quitflag= FALSE LOOP
NEW_LINE;
PUT_LINE("Select an option");
PUT_LINE("****************");
PUT_LINE("1 - Get a natural");
PUT_LINE("2 - Get a character");
PUT_LINE("3 - Nothing");
PUT_LINE("4 - Nothing");
NEW_LINE;
PUT_LINE("0 - Exit");
GET(choice);
-- ** GET(c); -- THIS IS THE IMPORTANT LINE
CASE choice IS
WHEN 1 =>
PUT_LINE("Selection 1");
GET(n);
PUT(n);
PUT_LINE(" was entered");
PUT_LINE("~~~~~~~");
WHEN 2 =>
PUT_LINE("Selection 2");
GET(c);
PUT(c);
PUT_LINE(" was entered");
PUT_LINE("~~~~~~~");
WHEN 3 =>
PUT_LINE("Selection 3");
PUT_LINE("~~~~~~~");
WHEN 4 =>
PUT_LINE("Selection 4");
PUT_LINE("~~~~~~~");
WHEN 0 =>
quitflag:= TRUE;
WHEN others =>
PUT("Invalid entry");
END CASE;
END LOOP;
END t1;
*****************************************************************************
* Simon Moore - smoore@chowgar.demon.co.uk - http://www.chowgar.demon.co.uk *
*****************************************************************************
next reply other threads:[~1996-10-24 0:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-10-24 0:00 Simon Moore [this message]
1996-10-24 0:00 ` Strange problem in GNAT 3.04 Win 95 Nicolay Belofastow
1996-10-25 0:00 ` Simon Moore
1996-10-25 0:00 ` Pascal Obry
1996-10-26 0:00 ` Tom Griest
1996-10-31 0:00 ` John English
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