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--

-- C354002.A

--

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--     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 attributes of modular types yield

--      correct values/results.  The attributes checked are:

--

--      First, Last, Range, Base, Min, Max, Succ, Pred,

--      Image, Width, Value, Pos, and Val

--

-- TEST DESCRIPTION:

--      This test defines several modular types.  One type defined at

--      each of System.Max_Binary_Modulus, System.Max_Nonbinary_Modulus,

--      a power of two half that of System.Max_Binary_Modulus, one less

--      than that power of two; one more than that power of two, two

--      less than a (large) power of two.  For each of these types,

--      determine the correct operation of the following attributes:

--

--      First, Last, Range, Base, Min, Max, Succ, Pred, Image, Width,

--      Value, Pos, Val, and Modulus

--

--      The attributes Wide_Image and Wide_Value are deferred to C354003.

--

--

--

-- CHANGE HISTORY:

--      08 SEP 94   SAIC    Initial version

--      17 NOV 94   SAIC    Revised version

--      13 DEC 94   SAIC    split off Wide_String attributes into C354003

--      06 JAN 95   SAIC    Promoted to next release

--      19 APR 95   SAIC    Revised in accord with reviewer comments

--      27 JAN 96   SAIC    Eliminated 32/64 bit potential conflict for 2.1

--

--!

with Report;

with System;

with TCTouch;

procedure C354002 is

  function ID(Local_Value: Integer) return Integer renames Report.Ident_Int;

  function ID(Local_Value: String)  return String renames  Report.Ident_Str;

  Power_2_Bits          : constant := System.Storage_Unit;

  Half_Max_Binary_Value : constant := System.Max_Binary_Modulus / 2;

  type Max_Binary      is mod System.Max_Binary_Modulus;

  type Max_NonBinary   is mod System.Max_Nonbinary_Modulus;

  type Half_Max_Binary is mod Half_Max_Binary_Value;

  type Medium          is mod 2048;

  type Medium_Plus     is mod 2042;

  type Medium_Minus    is mod 2111;

  type Small  is mod 2;

  type Finger is mod 5;

  MBL  : constant := Max_NonBinary'Last;

  MNBM : constant := Max_NonBinary'Modulus;

  Ones_Complement_Permission : constant Boolean := MBL = MNBM;

  type Finger_Id is (Thumb, Index, Middle, Ring, Pinkie);

  subtype Midrange is Medium_Minus range 222 .. 1111;

-- a few numbers for testing purposes

  Max_Binary_Mod_Over_3      : constant := Max_Binary'Modulus / 3;

  Max_NonBinary_Mod_Over_4   : constant := Max_NonBinary'Modulus / 4;

  System_Max_Bin_Mod_Pred    : constant := System.Max_Binary_Modulus - 1;

  System_Max_NonBin_Mod_Pred : constant := System.Max_Nonbinary_Modulus - 1;

  Half_Max_Bin_Value_Pred    : constant := Half_Max_Binary_Value - 1;

  AMB,   BMB   : Max_Binary;

  AHMB,  BHMB  : Half_Max_Binary;

  AM,    BM    : Medium;

  AMP,   BMP   : Medium_Plus;

  AMM,   BMM   : Medium_Minus;

  AS,    BS    : Small;

  AF,    BF    : Finger;

  TC_Pass_Case : Boolean := True;

  procedure Value_Fault( S: String ) is

  -- check 'Value for failure modes

  begin

    -- the evaluation of the 'Value expression should raise C_E

    TCTouch.Assert_Not( Midrange'Value(S) = 0, "Value_Fault" );

    if Midrange'Value(S) not in Midrange'Base then

      Report.Failed("'Value(" & S & ") raised no exception");

    end if;

  exception

    when Constraint_Error => null; -- expected case

    when others =>

         Report.Failed("'Value(" & S & ") raised wrong exception");

  end Value_Fault;

begin  -- Main test procedure.

  Report.Test ("C354002", "Check attributes of modular types" );

-- Base

  TCTouch.Assert( Midrange'Base'First = 0, "Midrange'Base'First" );

  TCTouch.Assert( Midrange'Base'Last  = Medium_Minus'Last,

                  "Midrange'Base'Last" );

-- First

  TCTouch.Assert( Max_Binary'First = 0,         "Max_Binary'First" );

  TCTouch.Assert( Max_NonBinary'First = 0,      "Max_NonBinary'First" );

  TCTouch.Assert( Half_Max_Binary'First = 0,    "Half_Max_Binary'First" );

  TCTouch.Assert( Medium'First = Medium(ID(0)), "Medium'First" );

  TCTouch.Assert( Medium_Plus'First = Medium_Plus(ID(0)),

                                                "Medium_Plus'First" );

  TCTouch.Assert( Medium_Minus'First = Medium_Minus(ID(0)),

                                                "Medium_Minus'First" );

  TCTouch.Assert( Small'First = Small(ID(0)),   "Small'First" );

  TCTouch.Assert( Finger'First = Finger(ID(0)), "Finger'First" );

  TCTouch.Assert( Midrange'First = Midrange(ID(222)),

                                                "Midrange'First" );

-- Image

  TCTouch.Assert( Half_Max_Binary'Image(255) = " 255",

                 "Half_Max_Binary'Image" );

  TCTouch.Assert( Medium'Image(0) = ID(" 0"),  "Medium'Image" );

  TCTouch.Assert( Medium_Plus'Image(Medium_Plus'Last) = " 2041",

                 "Medium_Plus'Image" );

  TCTouch.Assert( Medium_Minus'Image(Medium_Minus(ID(1024))) = " 1024",

                 "Medium_Minus'Image" );

  TCTouch.Assert( Small'Image(Small(ID(1))) = " 1", "Small'Image" );

  TCTouch.Assert( Midrange'Image(Midrange(ID(333))) = " 333",

                  "Midrange'Image" );

-- Last

  TCTouch.Assert( Max_Binary'Last      = System_Max_Bin_Mod_Pred,

                 "Max_Binary'Last");

  if Ones_Complement_Permission then

    TCTouch.Assert( Max_NonBinary'Last >= System_Max_NonBin_Mod_Pred,

                   "Max_NonBinary'Last (ones comp)");

  else

    TCTouch.Assert( Max_NonBinary'Last   = System_Max_NonBin_Mod_Pred,

                   "Max_NonBinary'Last");

  end if;

  TCTouch.Assert( Half_Max_Binary'Last = Half_Max_Bin_Value_Pred,

                 "Half_Max_Binary'Last");

  TCTouch.Assert( Medium'Last          = Medium(ID(2047)), "Medium'Last");

  TCTouch.Assert( Medium_Plus'Last     = Medium_Plus(ID(2041)),

                  "Medium_Plus'Last");

  TCTouch.Assert( Medium_Minus'Last    = Medium_Minus(ID(2110)),

                  "Medium_Minus'Last");

  TCTouch.Assert( Small'Last    = Small(ID(1)), "Small'Last");

  TCTouch.Assert( Finger'Last   = Finger(ID(4)), "Finger'Last");

  TCTouch.Assert( Midrange'Last = Midrange(ID(1111)), "Midrange'Last");

-- Max

  TCTouch.Assert( Max_Binary'Max(Power_2_Bits, Max_Binary'Last)

                  = Max_Binary'Last,                     "Max_Binary'Max");

  TCTouch.Assert( Max_NonBinary'Max(100,2000) = 2000, "Max_NonBinary'Max");

  TCTouch.Assert( Half_Max_Binary'Max(123,456) = 456,

                                                    "Half_Max_Binary'Max");

  TCTouch.Assert( Medium'Max(0,2040) = 2040,                 "Medium'Max");

  TCTouch.Assert( Medium_Plus'Max(0,1) = 1,             "Medium_Plus'Max");

  TCTouch.Assert( Medium_Minus'Max(2001,1995) = 2001,  "Medium_Minus'Max");

  TCTouch.Assert( Small'Max(1,0) = 1,                         "Small'Max");

  TCTouch.Assert( Finger'Max(Finger'Last+1,4) = 4,           "Finger'Max");

  TCTouch.Assert( Midrange'Max(Midrange'First+1,222) = Midrange'First+1,

                                                          "Midrange'Max");

-- Min

  TCTouch.Assert( Max_Binary'Min(Power_2_Bits, Max_Binary'Last)

                  = Power_2_Bits,                        "Max_Binary'Min");

  TCTouch.Assert( Max_NonBinary'Min(100,2000) = 100,  "Max_NonBinary'Min");

  TCTouch.Assert( Half_Max_Binary'Min(123,456) = 123,

                                                    "Half_Max_Binary'Min");

  TCTouch.Assert( Medium'Min(0,Medium(ID(2040))) = 0,        "Medium'Min");

  TCTouch.Assert( Medium_Plus'Min(0,1) = 0,             "Medium_Plus'Min");

  TCTouch.Assert( Medium_Minus'Min(2001,1995) = 1995,  "Medium_Minus'Min");

  TCTouch.Assert( Small'Min(1,0) = 0,                         "Small'Min");

  TCTouch.Assert( Finger'Min(Finger'Last+1,4) /= 4,          "Finger'Min");

  TCTouch.Assert( Midrange'Min(Midrange'First+1,222) = 222,

                                                          "Midrange'Min");

-- Modulus

  TCTouch.Assert( Max_Binary'Modulus = System.Max_Binary_Modulus,

                 "Max_Binary'Modulus");

  TCTouch.Assert( Max_NonBinary'Modulus = System.Max_Nonbinary_Modulus,

                 "Max_NonBinary'Modulus");

  TCTouch.Assert( Half_Max_Binary'Modulus = Half_Max_Binary_Value,

                 "Half_Max_Binary'Modulus");

  TCTouch.Assert( Medium'Modulus       = 2048, "Medium'Modulus");

  TCTouch.Assert( Medium_Plus'Modulus  = 2042, "Medium_Plus'Modulus");

  TCTouch.Assert( Medium_Minus'Modulus = 2111, "Medium_Minus'Modulus");

  TCTouch.Assert( Small'Modulus        =    2, "Small'Modulus");

  TCTouch.Assert( Finger'Modulus       =    5, "Finger'Modulus");

  TCTouch.Assert( Midrange'Modulus = ID(2111), "Midrange'Modulus");

-- Pos

  declare

    Int : Natural := 222;

  begin

    for I in Midrange loop

      TC_Pass_Case := TC_Pass_Case and Midrange'Pos(I) = Int;

      Int := Int +1;

    end loop;

  end;

  TCTouch.Assert( TC_Pass_Case, "Midrange'Pos");

-- Pred

  TCTouch.Assert( Max_Binary'Pred(0)      = System_Max_Bin_Mod_Pred,

                 "Max_Binary'Pred(0)");

  if Ones_Complement_Permission then

    TCTouch.Assert( Max_NonBinary'Pred(0) >= System_Max_NonBin_Mod_Pred,

                   "Max_NonBinary'Pred(0) (ones comp)");

  else

    TCTouch.Assert( Max_NonBinary'Pred(0)   = System_Max_NonBin_Mod_Pred,

                   "Max_NonBinary'Pred(0)");

  end if;

  TCTouch.Assert( Half_Max_Binary'Pred(0) = Half_Max_Bin_Value_Pred,

                 "Half_Max_Binary'Pred(0)");

  TCTouch.Assert( Medium'Pred(Medium(ID(0))) = 2047, "Medium'Pred(0)");

  TCTouch.Assert( Medium_Plus'Pred(0)     = 2041, "Medium_Plus'Pred(0)");

  TCTouch.Assert( Medium_Minus'Pred(0)    = 2110, "Medium_Minus'Pred(0)");

  TCTouch.Assert( Small'Pred(0)  = 1, "Small'Pred(0)");

  TCTouch.Assert( Finger'Pred(Finger(ID(0))) = 4, "Finger'Pred(0)");

  TCTouch.Assert( Midrange'Pred(222) = 221, "Midrange'Pred('First)");

-- Range

  for I in Midrange'Range loop

    if I not in Midrange then

      Report.Failed("Midrange loop test");

    end if;

  end loop;

  for I in Medium'Range loop

    if I not in Medium then

      Report.Failed("Medium loop test");

    end if;

  end loop;

  for I in Medium_Minus'Range loop

    if I not in 0..2110 then

      Report.Failed("Medium loop test");

    end if;

  end loop;

-- Succ

  TCTouch.Assert( Max_Binary'Succ(System_Max_Bin_Mod_Pred)         = 0,

                 "Max_Binary'Succ('Last)");

  if Ones_Complement_Permission then

    TCTouch.Assert( (Max_NonBinary'Succ(System_Max_NonBin_Mod_Pred) = 0)

                or (Max_NonBinary'Succ(System_Max_NonBin_Mod_Pred)

                    = Max_NonBinary'Last),

                   "Max_NonBinary'Succ('Last) (ones comp)");

  else

    TCTouch.Assert( Max_NonBinary'Succ(System_Max_NonBin_Mod_Pred)   = 0,

                   "Max_NonBinary'Succ('Last)");

  end if;

 TCTouch.Assert( Half_Max_Binary'Succ(Half_Max_Bin_Value_Pred)    = 0,

                 "Half_Max_Binary'Succ('Last)");

  TCTouch.Assert( Medium'Succ(2047)       = 0, "Medium'Succ('Last)");

  TCTouch.Assert( Medium_Plus'Succ(2041)  = 0, "Medium_Plus'Succ('Last)");

  TCTouch.Assert( Medium_Minus'Succ(2110) = 0, "Medium_Minus'Succ('Last)");

  TCTouch.Assert( Small'Succ(1)           = 0, "Small'Succ('Last)");

  TCTouch.Assert( Finger'Succ(4)          = 0, "Finger'Succ('Last)");

  TCTouch.Assert( Midrange'Succ(Midrange(ID(1111))) = 1112,

                  "Midrange'Succ('Last)");

-- Val

  for I in Natural range ID(222)..ID(1111) loop

    TCTouch.Assert( Midrange'Val(I) = Medium_Minus(I), "Midrange'Val");

  end loop;

-- Value

  TCTouch.Assert( Half_Max_Binary'Value("255") = 255,

                 "Half_Max_Binary'Value" );

  TCTouch.Assert( Medium'Value(" 1e2") = 100,   "Medium'Value(""1e2"")" );

  TCTouch.Assert( Medium'Value(" 0 ")  =   0,   "Medium'Value" );

  TCTouch.Assert( Medium_Plus'Value(ID("2041")) = 2041,

                 "Medium_Plus'Value" );

  TCTouch.Assert( Medium_Minus'Value(ID("+10_24")) = 1024,

                 "Medium_Minus'Value" );

  TCTouch.Assert( Small'Value("+1") = 1,            "Small'Value" );

  TCTouch.Assert( Midrange'Value(ID("333")) = 333,  "Midrange'Value" );

  TCTouch.Assert( Midrange'Value("1E3") = 1000,

                 "Midrange'Value(""1E3"")" );

  Value_Fault( "bad input" );

  Value_Fault( "-333" );

  Value_Fault( "9999" );

  Value_Fault( ".1" );

  Value_Fault( "1e-1" );

-- Width

  TCTouch.Assert( Medium'Width       = 5, "Medium'Width");

  TCTouch.Assert( Medium_Plus'Width  = 5, "Medium_Plus'Width");

  TCTouch.Assert( Medium_Minus'Width = 5, "Medium_Minus'Width");

  TCTouch.Assert( Small'Width        = 2, "Small'Width");

  TCTouch.Assert( Finger'Width       = 2, "Finger'Width");

  TCTouch.Assert( Midrange'Width     = 5, "Midrange'Width");

  Report.Result;

end C354002;