-- CD30002.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 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 implementation supports Alignments for subtypes and -- objects specified as factors and multiples of the number of storage -- elements per word, unless those values cannot be loaded and stored. -- Check that the largest alignment returned by default is supported. -- -- Check that the implementation supports Alignments supported by the -- target linker for stand-alone library-level objects of statically -- constrained subtypes. -- -- TEST DESCRIPTION: -- This test defines several types and objects, specifying various -- alignments for them (as factors and multiples of the number of -- storage elements per word). It then checks the alignments by -- declaring some objects, and checking that the integer values of -- their addresses is mod the specified alignment. This will not -- prevent false passes where the lucky compiler gets it right by -- chance, but will catch compilers that specifically do not obey -- the alignment clauses. -- -- APPLICABILITY CRITERIA: -- All implementations must compile this test. -- -- For implementations validating against Systems Programming Annex (C): -- this test must execute. -- -- For implementations not validating against Annex C: -- if this test compiles without error messages at compilation, -- it must bind and execute. -- -- -- CHANGE HISTORY: -- 22 JUL 95 SAIC Initial version -- 09 MAY 96 SAIC Strengthened for 2.1 -- 26 FEB 97 PWB.CTA Allowed for unexpected word sizes --! ----------------------------------------------------------------- CD30002_0 with Impdef; with System.Storage_Elements; package CD30002_0 is S_Units_per_Word : constant := System.Word_Size/System.Storage_Unit; type Max_Integer is range System.Min_Int .. System.Max_Int; Multiple_Alignment : constant := Integer'Min ( Max_Integer'Size / System.Storage_Unit, 2 * S_Units_per_Word ); subtype Storage_Element is System.Storage_Elements.Storage_Element; type Some_Stuff is array(1..S_Units_Per_Word) of Storage_Element; for Some_Stuff'Alignment use Impdef.Max_Default_Alignment; -- N/A => ERROR. Library_Level_Object : Some_Stuff; for Library_Level_Object'Alignment use Impdef.Max_Linker_Alignment; -- N/A => ERROR. type Quarter is mod 4; -- two bits for Quarter'Alignment use S_Units_per_Word / 2; -- N/A => ERROR. type Half is mod 16; -- nibble for Half'Alignment use Multiple_Alignment; -- N/A => ERROR. type O_Some_Stuff is array(1..S_Units_Per_Word) of Storage_Element; type O_Quarter is mod 4; -- two bits type O_Half is mod 16; -- nibble end CD30002_0; -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- there is no package body CD30002_0 ------------------------------------------------------------------- CD30002 with Report; with Impdef; with CD30002_0; with System.Storage_Elements; procedure CD30002 is My_Stuff : CD30002_0.Some_Stuff; -- Impdef.Max_Default_Alignment My_Quarter : CD30002_0.Quarter; -- CD30002_0.S_Units_per_Word / 2 My_Half : CD30002_0.Half; -- CD30002_0.S_Units_per_Word * 2 Stuff_Object : CD30002_0.O_Some_Stuff; for Stuff_Object'Alignment use Impdef.Max_Default_Alignment; -- N/A => ERROR. Quarter_Object : CD30002_0.O_Quarter; for Quarter_Object'Alignment use CD30002_0.S_Units_per_Word / 2; -- N/A => ERROR. Half_Object : CD30002_0.O_Half; for Half_Object'Alignment use CD30002_0.S_Units_per_Word * 2; -- N/A => ERROR. subtype IntAdd is System.Storage_Elements.Integer_Address; use type System.Storage_Elements.Integer_Address; function A2I(Value: System.Address) return IntAdd renames System.Storage_Elements.To_Integer; NAC : constant String := " not aligned correctly"; begin -- Main test procedure. Report.Test ("CD30002", "Check that the implementation supports " & "Alignments for subtypes and objects specified " & "as factors and multiples of the number of " & "storage elements per word, unless those values " & "cannot be loaded and stored. Check that the " & "largest alignment returned by default is " & "supported. Check that the implementation " & "supports Alignments supported by the target " & "linker for stand-alone library-level objects " & "of statically constrained subtypes" ); if A2I(CD30002_0.Library_Level_Object'Address) mod Impdef.Max_Linker_Alignment /= 0 then Report.Failed("Library_Level_Object" & NAC); end if; if A2I(My_Stuff'Address) mod Impdef.Max_Default_Alignment /= 0 then Report.Failed("Max alignment subtype" & NAC); end if; if A2I(My_Quarter'Address) mod (CD30002_0.S_Units_per_Word / 2) /= 0 then Report.Failed("Factor of words subtype" & NAC); end if; if A2I(My_Half'Address) mod (CD30002_0.Multiple_Alignment) /= 0 then Report.Failed("Multiple of words subtype" & NAC); end if; if A2I(Stuff_Object'Address) mod Impdef.Max_Default_Alignment /= 0 then Report.Failed("Stuff alignment object" & NAC); end if; if A2I(Quarter_Object'Address) mod (CD30002_0.S_Units_per_Word / 2) /= 0 then Report.Failed("Factor of words object" & NAC); end if; if A2I(Half_Object'Address) mod (CD30002_0.Multiple_Alignment) /= 0 then Report.Failed("Multiple of words object" & NAC); end if; Report.Result; end CD30002;