From: wemagor@fmsa.cca.rockwell.com (Wayne Magor)
Subject: Float to Fixed conversions
Date: Thu, 16 Mar 1995 22:29:10 GMT
Date: 1995-03-16T22:29:10+00:00 [thread overview]
Message-ID: <D5K14n.C97@lazrus.cca.rockwell.com> (raw)
Is it legal for the program below to print 0.0? The reason I question it
is because it is DEC's Vax Ada that returns 0.0, but their Alpha Ada
returns 1.0. The 'Machine_Rounds is FALSE for Vax and TRUE for Alpha,
but a compiler on a Sun machine has 'Machine_Rounds to be FALSE and yet
still returns 1.0.
Is there a way to adjust for these differences or is there just a bug in
the Vax Ada compiler? Is the conversion different if it is exactly half
way between the fixed point model numbers?
procedure Fixed_Pt is
type Fixed is delta 1.0 range -10.0 .. 10.0;
Fix : Fixed;
Flt : Float := 0.999;
begin
Fix := Fixed(Flt); -- should Fix alway be set to 1.0?
end Fixed_Pt;
next reply other threads:[~1995-03-16 22:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1995-03-16 22:29 Wayne Magor [this message]
1995-03-18 13:01 ` Float to Fixed conversions Tucker Taft
1995-03-20 21:29 ` Wayne Magor
1995-03-19 1:31 ` Robert Dewar
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