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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/cxa/cxa5015.a
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+-- CXA5015.A
+--
+-- Grant of Unlimited Rights
+--
+-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
+-- F08630-91-C-0015, and DCA100-97-D-0025, 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 WHATSOEVER, 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 the following representation-oriented attributes are
+-- available and that the produce correct results:
+-- 'Denorm, 'Signed_Zeros, 'Exponent 'Fraction, 'Compose, 'Scaling,
+-- 'Floor, 'Ceiling, 'Rounding, 'Unbiased_Rounding, 'Truncation,
+-- 'Remainder, 'Adjacent, 'Copy_Sign, 'Leading_Part, 'Machine, and
+-- 'Model_Small.
+--
+-- TEST DESCRIPTION:
+-- This test checks whether certain attributes of floating point types
+-- are available from an implementation. Where attribute correctness
+-- can be verified in a straight forward manner, the appropriate checks
+-- are included here. However, this test is not intended to ensure the
+-- correctness of the results returned from all of the attributes
+-- examined in this test; that process will occur in the tests of the
+-- Numerics_Annex.
+--
+--
+-- CHANGE HISTORY:
+-- 26 Jun 95 SAIC Initial prerelease version.
+-- 29 Apr 96 SAIC Incorporated reviewer comments for ACVC 2.1.
+-- 01 DEC 97 EDS Fix value for checking the S'Adjacent attribute
+--!
+
+with Report;
+
+procedure CXA5015 is
+
+ subtype Float_Subtype is Float range -10.0..10.0;
+ type Derived_Float_1 is digits 8;
+ type Derived_Float_2 is new Derived_Float_1 range -10.0..10.0E10;
+
+ use type Float, Float_Subtype, Derived_Float_1, Derived_Float_2;
+
+ TC_Boolean : Boolean;
+ TC_Float : Float;
+ TC_SFloat : Float_Subtype;
+ TC_DFloat_1 : Derived_Float_1;
+ TC_DFloat_2 : Derived_Float_2;
+ TC_Tolerance : Float := 0.001;
+
+ function Not_Equal (Actual_Result, Expected_Result, Tolerance : Float)
+ return Boolean is
+ begin
+ return abs(Actual_Result - Expected_Result) > Tolerance;
+ end Not_Equal;
+
+
+begin
+
+ Report.Test ("CXA5015", "Check that certain representation-oriented " &
+ "attributes are available and that they " &
+ "produce correct results");
+
+ -- New Representation-Oriented Attributes.
+ --
+ -- Check the S'Denorm attribute.
+
+ TC_Boolean := Float'Denorm;
+ TC_Boolean := Float_Subtype'Denorm;
+ TC_Boolean := Derived_Float_1'Denorm;
+ TC_Boolean := Derived_Float_2'Denorm;
+
+
+ -- Check the S'Signed_Zeroes attribute.
+
+ TC_Boolean := Float'Signed_Zeros;
+ TC_Boolean := Float_Subtype'Signed_Zeros;
+ TC_Boolean := Derived_Float_1'Signed_Zeros;
+ TC_Boolean := Derived_Float_2'Signed_Zeros;
+
+
+ -- New Primitive Function Attributes.
+ --
+ -- Check the S'Exponent attribute.
+
+ TC_Float := 0.5;
+ TC_SFloat := 0.99;
+ TC_DFloat_1 := 2.45;
+ TC_DFloat_2 := 2.65;
+
+ if Float'Exponent(TC_Float) > Float_Subtype'Exponent(TC_SFloat) or
+ Float'Exponent(TC_Float) > 2
+ then
+ Report.Failed("Incorrect result from the 'Exponent attribute");
+ end if;
+
+
+ -- Check the S'Fraction attribute.
+
+ if Not_Equal
+ (Float'Fraction(TC_Float),
+ TC_Float * Float(Float'Machine_Radix)**(-Float'Exponent(TC_Float)),
+ TC_Tolerance)
+ then
+ Report.Failed("Incorrect result from the 'Fraction attribute - 1");
+ end if;
+
+ if Float'Fraction(TC_Float) <
+ (1.0/Float(Float'Machine_Radix)) - TC_Tolerance or
+ Float'Fraction(TC_Float) >= 1.0 - TC_Tolerance
+ then
+ Report.Failed("Incorrect result from the 'Fraction attribute - 2");
+ end if;
+
+
+ -- Check the S'Compose attribute.
+
+ if Not_Equal
+ (Float'Compose(TC_Float, 3),
+ TC_Float * Float(Float'Machine_Radix)**(3-Float'Exponent(TC_Float)),
+ TC_Tolerance)
+ then
+ Report.Failed("Incorrect result from the 'Compose attribute");
+ end if;
+
+
+ -- Check the S'Scaling attribute.
+
+ if Not_Equal
+ (Float'Scaling(TC_Float, 2),
+ TC_Float * Float(Float'Machine_Radix)**2,
+ TC_Tolerance)
+ then
+ Report.Failed("Incorrect result from the 'Scaling attribute");
+ end if;
+
+
+ -- Check the S'Floor attribute.
+
+ TC_Float := 0.99;
+ TC_SFloat := 1.00;
+ TC_DFloat_1 := 2.50;
+ TC_DFloat_2 := -2.50;
+
+ if Float'Floor(TC_Float) /= 0.0 or
+ Float_Subtype'Floor(TC_SFloat) /= 1.0 or
+ Derived_Float_1'Floor(TC_DFloat_1) /= 2.0 or
+ Derived_Float_2'Floor(TC_DFloat_2) /= -3.0
+ then
+ Report.Failed("Incorrect result from the 'Floor attribute");
+ end if;
+
+
+ -- Check the S'Ceiling attribute.
+
+ TC_Float := 0.99;
+ TC_SFloat := 1.00;
+ TC_DFloat_1 := 2.50;
+ TC_DFloat_2 := -2.99;
+
+ if Float'Ceiling(TC_Float) /= 1.0 or
+ Float_Subtype'Ceiling(TC_SFloat) /= 1.0 or
+ Derived_Float_1'Ceiling(TC_DFloat_1) /= 3.0 or
+ Derived_Float_2'Ceiling(TC_DFloat_2) /= -2.0
+ then
+ Report.Failed("Incorrect result from the 'Ceiling attribute");
+ end if;
+
+
+ -- Check the S'Rounding attribute.
+
+ TC_Float := 0.49;
+ TC_SFloat := 1.00;
+ TC_DFloat_1 := 2.50;
+ TC_DFloat_2 := -2.50;
+
+ if Float'Rounding(TC_Float) /= 0.0 or
+ Float_Subtype'Rounding(TC_SFloat) /= 1.0 or
+ Derived_Float_1'Rounding(TC_DFloat_1) /= 3.0 or
+ Derived_Float_2'Rounding(TC_DFloat_2) /= -3.0
+ then
+ Report.Failed("Incorrect result from the 'Rounding attribute");
+ end if;
+
+
+ -- Check the S'Unbiased_Rounding attribute.
+
+ TC_Float := 0.50;
+ TC_SFloat := 1.50;
+ TC_DFloat_1 := 2.50;
+ TC_DFloat_2 := -2.50;
+
+ if Float'Unbiased_Rounding(TC_Float) /= 0.0 or
+ Float_Subtype'Unbiased_Rounding(TC_SFloat) /= 2.0 or
+ Derived_Float_1'Unbiased_Rounding(TC_DFloat_1) /= 2.0 or
+ Derived_Float_2'Unbiased_Rounding(TC_DFloat_2) /= -2.0
+ then
+ Report.Failed("Incorrect result from the 'Unbiased_Rounding " &
+ "attribute");
+ end if;
+
+
+ -- Check the S'Truncation attribute.
+
+ TC_Float := -0.99;
+ TC_SFloat := 1.50;
+ TC_DFloat_1 := 2.99;
+ TC_DFloat_2 := -2.50;
+
+ if Float'Truncation(TC_Float) /= 0.0 or
+ Float_Subtype'Truncation(TC_SFloat) /= 1.0 or
+ Derived_Float_1'Truncation(TC_DFloat_1) /= 2.0 or
+ Derived_Float_2'Truncation(TC_DFloat_2) /= -2.0
+ then
+ Report.Failed("Incorrect result from the 'Truncation attribute");
+ end if;
+
+
+ -- Check the S'Remainder attribute.
+
+ TC_Float := 9.0;
+ TC_SFloat := 7.5;
+ TC_DFloat_1 := 5.0;
+ TC_DFloat_2 := 8.0;
+
+ if Float'Remainder(TC_Float, 2.0) /= 1.0 or
+ Float_Subtype'Remainder(TC_SFloat, 3.0) /= 1.5 or
+ Derived_Float_1'Remainder(TC_DFloat_1, 2.0) /= 1.0 or
+ Derived_Float_2'Remainder(TC_DFloat_2, 4.0) /= 0.0
+ then
+ Report.Failed("Incorrect result from the 'Remainder attribute");
+ end if;
+
+
+ -- Check the S'Adjacent attribute.
+
+ TC_Float := 4.0;
+ TC_SFloat := -1.0;
+
+ if Float'Adjacent(TC_Float, TC_Float) /= TC_Float or
+ Float_Subtype'Adjacent(TC_SFloat, -1.0) /= TC_SFloat
+ then
+ Report.Failed("Incorrect result from the 'Adjacent attribute");
+ end if;
+
+
+ -- Check the S'Copy_Sign attribute.
+
+ TC_Float := 0.0;
+ TC_SFloat := -1.0;
+ TC_DFloat_1 := 5.0;
+ TC_DFloat_2 := -2.5;
+
+ if Float'Copy_Sign(TC_Float, -2.0) /= 0.0 or
+ Float_Subtype'Copy_Sign(TC_SFloat, 4.0) /= 1.0 or
+ Derived_Float_1'Copy_Sign(TC_DFloat_1, -2.0) /= -5.0 or
+ Derived_Float_2'Copy_Sign(TC_DFloat_2, -2.0) /= -2.5
+ then
+ Report.Failed("Incorrect result from the 'Copy_Sign attribute");
+ end if;
+
+
+ -- Check the S'Leading_Part attribute.
+
+ TC_Float := 0.0;
+ TC_SFloat := -1.0;
+ TC_DFloat_1 := 5.88;
+ TC_DFloat_2 := -2.52;
+
+ -- Leading part obtained in the variables.
+ TC_Float := Float'Leading_Part(TC_Float, 2);
+ TC_SFloat := Float_Subtype'Leading_Part(TC_SFloat, 2);
+ TC_DFloat_1 := Derived_Float_1'Leading_Part(TC_DFloat_1, 2);
+ TC_DFloat_2 := Derived_Float_2'Leading_Part(TC_DFloat_2, 2);
+
+ -- Checking for the leading part of the variables at this point should
+ -- produce the same values.
+ if Float'Leading_Part(TC_Float, 2) /= TC_Float or
+ Float_Subtype'Leading_Part(TC_SFloat, 2) /= TC_SFloat or
+ Derived_Float_1'Leading_Part(TC_DFloat_1, 2) /= TC_DFloat_1 or
+ Derived_Float_2'Leading_Part(TC_DFloat_2, 2) /= TC_DFloat_2
+ then
+ Report.Failed("Incorrect result from the 'Leading_Part attribute");
+ end if;
+
+
+ -- Check the S'Machine attribute.
+
+ TC_Float := 0.0;
+ TC_SFloat := -1.0;
+ TC_DFloat_1 := 5.88;
+ TC_DFloat_2 := -2.52;
+
+ -- Closest machine number obtained in the variables.
+ TC_Float := Float'Machine(TC_Float);
+ TC_SFloat := Float_Subtype'Machine(TC_SFloat);
+ TC_DFloat_1 := Derived_Float_1'Machine(TC_DFloat_1);
+ TC_DFloat_2 := Derived_Float_2'Machine(TC_DFloat_2);
+
+ -- Checking for the closest machine number to each of the variables at
+ -- this point should produce the same values.
+ if Float'Machine(TC_Float) /= TC_Float or
+ Float_Subtype'Machine(TC_SFloat) /= TC_SFloat or
+ Derived_Float_1'Machine(TC_DFloat_1) /= TC_DFloat_1 or
+ Derived_Float_2'Machine(TC_DFloat_2) /= TC_DFloat_2
+ then
+ Report.Failed("Incorrect result from the 'Machine attribute");
+ end if;
+
+
+ -- New Model-Oriented Attributes.
+ --
+ -- Check the S'Model_Small attribute.
+
+ if Not_Equal
+ (Float'Model_Small,
+ Float(Float'Machine_Radix)**(Float'Model_Emin-1),
+ TC_Tolerance)
+ then
+ Report.Failed("Incorrect result from the 'Model_Small attribute");
+ end if;
+
+
+ Report.Result;
+
+end CXA5015;