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-- C455001.A
-- Grant of Unlimited Rights
--
-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687 and
-- F08630-91-C-0015, the U.S. Government obtained unlimited rights in the
-- software and documentation contained herein. Unlimited rights are
-- defined in DFAR 252.227-7013(a)(19). By making this public release,
-- the Government intends to confer upon all recipients unlimited rights
-- equal to those held by the Government. These rights include rights to
-- use, duplicate, release or disclose the released technical data and
-- computer software in whole or in part, in any manner and for any purpose
-- whatsoever, and to have or permit others to do so.
--
-- DISCLAIMER
--
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
-- WARRANTY AS TO ANY MATTER WHATSOVER, INCLUDING THE CONDITIONS OF THE
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
-- PARTICULAR PURPOSE OF SAID MATERIAL.
--*
--
-- OBJECTIVE:
-- Check that universal fixed multiplying operators can be used without
-- a conversion in contexts where the result type is determined.
--
-- Note: This is intended to check the changes made to these operators
-- in Ada 95; legacy tests should cover cases from Ada 83.
--
-- CHANGE HISTORY:
-- 18 MAR 99 RLB Initial version
--
--!
with Report; use Report;
procedure C455001 is
type F1 is delta 2.0**(-1) range 0.0 .. 8.0;
type F2 is delta 2.0**(-2) range 0.0 .. 4.0;
type F3 is delta 2.0**(-3) range 0.0 .. 2.0;
A : F1;
B : F2;
C : F3;
type Fixed_Record is record
D : F1;
E : F2;
end record;
R : Fixed_Record;
function Ident_Fix (X : F3) return F3 is
begin
if Equal(3,3) then
return X;
else
return 0.0;
end if;
end Ident_Fix;
begin
Test ("C455001", "Check that universal fixed multiplying operators " &
"can be used without a conversion in contexts where " &
"the result type is determined.");
A := 1.0; B := 1.0;
C := A * B; -- Assignment context.
if C /= Ident_Fix(1.0) then
Failed ("Incorrect results for multiplication (1) - result is " &
F3'Image(C));
end if;
C := A / B;
if C /= Ident_Fix(1.0) then
Failed ("Incorrect results for division (1) - result is " &
F3'Image(C));
end if;
A := 2.5;
C := A * 0.25;
if C /= Ident_Fix(0.625) then
Failed ("Incorrect results for multiplication (2) - result is " &
F3'Image(C));
end if;
C := A / 4.0;
if C /= Ident_Fix(0.625) then
Failed ("Incorrect results for division (2) - result is " &
F3'Image(C));
end if;
C := Ident_Fix(0.75);
C := C * 0.5;
if C /= Ident_Fix(0.375) then
Failed ("Incorrect results for multiplication (3) - result is " &
F3'Image(C));
end if;
C := Ident_Fix(0.75);
C := C / 0.5;
if C /= Ident_Fix(1.5) then
Failed ("Incorrect results for division (3) - result is " &
F3'Image(C));
end if;
A := 0.5; B := 0.3; -- Function parameter context.
if Ident_Fix(A * B) not in Ident_Fix(0.125) .. Ident_Fix(0.25) then
Failed ("Incorrect results for multiplication (4) - result is " &
F3'Image(A * B)); -- Exact = 0.15
end if;
B := 0.8;
if Ident_Fix(A / B) not in Ident_Fix(0.5) .. Ident_Fix(0.75) then
Failed ("Incorrect results for division (4) - result is " &
F3'Image(A / B));
-- Exact = 0.625..., but B is only restricted to the range
-- 0.75 .. 1.0, so the result can be anywhere in the range
-- 0.5 .. 0.75.
end if;
C := 0.875; B := 1.5;
R := (D => C * 4.0, E => B / 0.5); -- Aggregate context.
if R.D /= 3.5 then
Failed ("Incorrect results for multiplication (5) - result is " &
F1'Image(R.D));
end if;
if R.E /= 3.0 then
Failed ("Incorrect results for division (5) - result is " &
F2'Image(R.E));
end if;
A := 0.5;
C := A * F1'(B * 2.0); -- Qualified expression context.
if C /= Ident_Fix(1.5) then
Failed ("Incorrect results for multiplication (6) - result is " &
F3'Image(C));
end if;
A := 4.0;
C := F1'(B / 0.5) / A;
if C /= Ident_Fix(0.75) then
Failed ("Incorrect results for division (6) - result is " &
F3'Image(C));
end if;
Result;
end C455001;
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