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-- C87B44A.ADA
-- 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.
--*
-- CHECK THAT OVERLOADING RESOLUTION USES THE RULE THAT:
--
-- THE TYPE OF THE EXPRESSION IN A RETURN STATEMENT MUST MATCH THE
-- EXPLICIT TYPEMARK IN THE RETURN CLAUSE OF THE FUNCTION'S
-- SPECIFICATION.
--
-- THE FOUR KINDS OF EXPRESSIONS TESTED HERE ARE:
--
-- (A): A CALL TO AN OVERLOADED FUNCTION.
-- (B): AN OVERLOADED OPERATOR SYMBOL.
-- (C): AN OVERLOADED (INFIX) OPERATOR.
-- (D): AN OVERLOADED ENUMERATION LITERAL.
-- TRH 25 JUNE 82
WITH REPORT; USE REPORT;
PROCEDURE C87B44A IS
TYPE WHOLE IS NEW INTEGER RANGE 0..INTEGER'LAST;
TYPE CITRUS IS (LEMON, LIME, ORANGE);
TYPE HUE IS (RED, ORANGE, YELLOW);
FUNCTION F1 (X, Y : INTEGER) RETURN INTEGER IS
BEGIN
RETURN -1;
END F1;
FUNCTION "*" (X, Y : WHOLE) RETURN WHOLE IS
BEGIN
RETURN 0;
END "*";
FUNCTION "*" (X, Y : INTEGER) RETURN HUE IS
BEGIN
RETURN ORANGE;
END "*";
FUNCTION F1 (X, Y : INTEGER) RETURN CITRUS IS
BEGIN
RETURN ORANGE;
END F1;
BEGIN
TEST ("C87B44A","OVERLOADED EXPRESSIONS IN RETURN STATEMENTS");
DECLARE
FUNCTION F2 (X, Y : INTEGER) RETURN INTEGER IS
BEGIN
RETURN F1 (X, Y);
END F2;
FUNCTION F2 (X, Y : WHOLE) RETURN WHOLE IS
BEGIN
RETURN "*" (X, Y);
END F2;
FUNCTION F2 (X, Y : INTEGER) RETURN HUE IS
BEGIN
RETURN (X * Y);
END F2;
FUNCTION F2 (X, Y : INTEGER) RETURN CITRUS IS
BEGIN
RETURN ORANGE;
END F2;
BEGIN
IF INTEGER'(F2 (0, 0)) /= -1 THEN
FAILED ("(A): RESOLUTION INCORRECT - FUNCTION CALL");
END IF;
IF WHOLE'(F2 (0, 0)) /= 0 THEN
FAILED ("(B): RESOLUTION INCORRECT - OPERATOR SYMBOL");
END IF;
IF HUE'POS (F2 (0, 0)) /= 1 THEN
FAILED ("(C): RESOLUTION INCORRECT - INFIX OPERATOR");
END IF;
IF CITRUS'POS (F2 (0, 0)) /= 2 THEN
FAILED ("(D): RESOLUTION INCORRECT - ENUMERATION LITERAL");
END IF;
END;
RESULT;
END C87B44A;
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