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jeremybenn |
-- C4A012B.ADA
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-- Grant of Unlimited Rights
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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--
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-- DISCLAIMER
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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-- OBJECTIVE:
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-- CHECK THAT CONSTRAINT_ERROR IS RAISED FOR
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-- A UNIVERSAL_REAL EXPRESSION IF DIVISION BY ZERO IS ATTEMPTED.
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-- CHECK THAT CONSTRAINT_ERROR IS RAISED FOR
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-- 0.0 ** (-1) (OR ANY OTHER NEGATIVE EXPONENT VALUE).
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-- HISTORY:
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-- RJW 09/04/86 CREATED ORIGINAL TEST.
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-- CJJ 09/04/87 ADDED PASS MESSAGE FOR RAISING NUMERIC_ERROR;
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-- MODIFIED CODE TO PREVENT COMPILER OPTIMIZING
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-- OUT THE TEST.
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-- JET 12/31/87 ADDED MORE CODE TO PREVENT OPTIMIZATION.
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-- MRM 03/30/93 REMOVED NUMERIC_ERROR FOR 9X COMPATIBILITY
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-- JRL 02/29/96 Added code to check for value of Machine_Overflows; if
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-- False, test is inapplicable.
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WITH REPORT; USE REPORT;
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PROCEDURE C4A012B IS
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F : FLOAT;
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I3 : INTEGER := -3;
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SUBTYPE SINT IS INTEGER RANGE -10 .. 10;
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SI5 : CONSTANT SINT := -5;
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FUNCTION IDENT (X:FLOAT) RETURN FLOAT IS
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BEGIN
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IF EQUAL (3,3) THEN
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RETURN X;
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ELSE
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RETURN 1.0;
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END IF;
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END IDENT;
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BEGIN
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TEST ( "C4A012B", "CHECK THAT CONSTRAINT_ERROR " &
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"IS RAISED FOR " &
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"0.0 ** (-1) (OR ANY OTHER NEGATIVE EXPONENT " &
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"VALUE)" );
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IF FLOAT'MACHINE_OVERFLOWS = FALSE THEN
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REPORT.NOT_APPLICABLE ("Float'Machine_Overflows = False");
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ELSE
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BEGIN
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F := IDENT (0.0) ** (-1);
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FAILED ( "THE EXPRESSION '0.0 ** (-1)' DID NOT RAISE " &
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"AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 1");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** (-1)' RAISED THE " &
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"WRONG EXCEPTION" );
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END;
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BEGIN
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F := 0.0 ** (IDENT_INT (-1));
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FAILED ( "THE EXPRESSION '0.0 ** (IDENT_INT (-1))' DID " &
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"NOT RAISE AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 2");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** (IDENT_INT (-1))' " &
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"RAISED THE WRONG EXCEPTION" );
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END;
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BEGIN
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F := 0.0 ** (INTEGER'POS (IDENT_INT (-1)));
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FAILED ( "THE EXPRESSION '0.0 ** " &
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"(INTEGER'POS (IDENT_INT (-1)))' DID " &
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"NOT RAISE AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 3");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** " &
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"(INTEGER'POS (IDENT_INT (-1)))' RAISED " &
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"THE WRONG EXCEPTION" );
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END;
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BEGIN
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F := IDENT(0.0) ** I3;
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FAILED ( "THE EXPRESSION '0.0 ** I3' DID NOT RAISE " &
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"AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 4");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** I3' RAISED THE " &
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"WRONG EXCEPTION" );
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END;
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BEGIN
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F := 0.0 ** (IDENT_INT (I3));
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FAILED ( "THE EXPRESSION '0.0 ** (IDENT_INT (I3))' DID " &
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"NOT RAISE AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 5");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** (IDENT_INT (I3))' " &
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"RAISED THE WRONG EXCEPTION" );
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END;
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BEGIN
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F := IDENT (0.0) ** SI5;
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FAILED ( "THE EXPRESSION '0.0 ** SI5' DID NOT RAISE " &
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"AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 6");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** SI5' RAISED THE " &
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"WRONG EXCEPTION" );
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END;
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BEGIN
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F := 0.0 ** (IDENT_INT (SI5));
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FAILED ( "THE EXPRESSION '0.0 ** (IDENT_INT (SI5))' DID " &
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"NOT RAISE AN EXCEPTION" );
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IF EQUAL ( INTEGER(F), INTEGER(F) ) THEN
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COMMENT ("SHOULDN'T BE HERE!");
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END IF;
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EXCEPTION
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WHEN CONSTRAINT_ERROR =>
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COMMENT ("CONSTRAINT_ERROR RAISED - 7");
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WHEN OTHERS =>
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FAILED ( "THE EXPRESSION '0.0 ** (IDENT_INT (SI5))' " &
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"RAISED THE WRONG EXCEPTION" );
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END;
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END IF;
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RESULT;
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END C4A012B;
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