| -- CXAA010.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 operations defined in package Ada.Text_IO.Decimal_IO |
| -- are available, and that they function correctly when used for the |
| -- input/output of Decimal types. |
| -- |
| -- TEST DESCRIPTION: |
| -- This test demonstrates the Put and Get procedures found in the |
| -- generic package Ada.Text_IO.Decimal_IO. Both Put and Get are |
| -- overloaded to allow placement or extraction of decimal values |
| -- to/from a text file or a string. This test demonstrates both forms |
| -- of each subprogram. |
| -- The test defines an array of records containing decimal value |
| -- and string component fields. All component values are placed in a |
| -- Text_IO file, with the decimal values being placed there using the |
| -- version of Put defined for files, and using user-specified formatting |
| -- parameters. The data is later extracted from the file, with the |
| -- decimal values being removed using the version of Get defined for |
| -- files. Decimal values are then written to strings, using the |
| -- appropriate Put procedure. Finally, extraction of the decimal data |
| -- from the strings completes the evaluation of the Decimal_IO package |
| -- subprograms. |
| -- The reconstructed data is verified at the end of the test against the |
| -- data originally written to the file. |
| -- |
| -- APPLICABILITY CRITERIA: |
| -- Applicable to all implementations capable of supporting external |
| -- Text_IO files and Decimal Fixed Point Types |
| -- |
| -- All implementations must attempt to compile this test. |
| -- |
| -- For implementations validating against Information Systems Annex (F): |
| -- this test must execute and report PASSED. |
| -- |
| -- For implementations not validating against Annex F: |
| -- this test may report compile time errors at one or more points |
| -- indicated by "-- ANX-F RQMT", in which case it may be graded as inapplicable. |
| -- Otherwise, the test must execute and report PASSED. |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- 20 Feb 95 SAIC Modified test to allow for Use_Error/Name_Error |
| -- generation by an implementation not supporting |
| -- Text_IO operations. |
| -- 14 Nov 95 SAIC Corrected string indexing for ACVC 2.0.1. |
| -- 27 Feb 97 PWB.CTA Allowed for non-support of some IO operations |
| -- 16 FEB 98 EDS Modified documentation. |
| --! |
| |
| with Ada.Text_IO; |
| with Report; |
| |
| procedure CXAA010 is |
| use Ada.Text_IO; |
| Tax_Roll : Ada.Text_IO.File_Type; |
| Tax_Roll_Name : constant String := |
| Report.Legal_File_Name ( Nam => "CXAA010" ); |
| Incomplete : exception; |
| begin |
| |
| Report.Test ("CXAA010", "Check that the operations defined in package " & |
| "Ada.Text_IO.Decimal_IO are available, and " & |
| "that they function correctly when used for " & |
| "the input/output of Decimal types"); |
| |
| Test_for_Decimal_IO_Support: |
| begin |
| |
| -- An implementation that does not support Text_IO creation or naming |
| -- of external files in a particular environment will raise Use_Error |
| -- or Name_Error on a call to Text_IO Create. This block statement |
| -- encloses a call to Create, which should produce an exception in a |
| -- non-supportive environment. Either of these exceptions will be |
| -- handled to produce a Not_Applicable result. |
| |
| Ada.Text_IO.Create (Tax_Roll, Ada.Text_IO.Out_File, Tax_Roll_Name); |
| |
| exception |
| |
| when Ada.Text_IO.Use_Error | Ada.Text_IO.Name_Error => |
| Report.Not_Applicable |
| ( "Files not supported - Create as Out_File for Text_IO" ); |
| raise Incomplete; |
| |
| end Test_for_Decimal_IO_Support; |
| |
| Taxation: |
| declare |
| |
| ID_Length : constant := 5; |
| Price_String_Length : constant := 5; |
| Value_String_Length : constant := 6; |
| Total_String_Length : constant := 20; |
| Spacer : constant String := " "; -- Two blanks. |
| |
| type Price_Type is delta 0.1 digits 4; -- ANX-F RQMT |
| type Value_Type is delta 0.01 digits 5; -- ANX-F RQMT |
| |
| type Property_Type is |
| record |
| Parcel_ID : String (1..ID_Length); |
| Purchase_Price : Price_Type; |
| Assessed_Value : Value_Type; |
| end record; |
| |
| type City_Block_Type is array (1..4) of Property_Type; |
| |
| subtype Tax_Bill_Type is string (1..Total_String_Length); |
| type Tax_Bill_Array_Type is array (1..4) of Tax_Bill_Type; |
| |
| Neighborhood : City_Block_Type := |
| (("X9254", 123.0, 135.00), ("X3569", 345.0, 140.50), |
| ("X3434", 234.0, 179.50), ("X8838", 456.0, 158.00)); |
| |
| Neighborhood_Taxes : Tax_Bill_Array_Type; |
| |
| package Price_IO is new Ada.Text_IO.Decimal_IO (Price_Type); |
| package Value_IO is new Ada.Text_IO.Decimal_IO (Value_Type); |
| |
| begin -- Taxation |
| |
| Assessors_Office: |
| begin |
| |
| for Parcel in City_Block_Type'Range loop |
| -- Note: All data in the file will be separated with a |
| -- two-character blank spacer. |
| Ada.Text_IO.Put(Tax_Roll, Neighborhood(Parcel).Parcel_ID); |
| Ada.Text_IO.Put(Tax_Roll, Spacer); |
| |
| -- Use Decimal_IO.Put with non-default format parameters to |
| -- place decimal data into file. |
| Price_IO.Put (Tax_Roll, Neighborhood(Parcel).Purchase_Price, |
| Fore => 3, Aft =>1, Exp => 0); |
| Ada.Text_IO.Put(Tax_Roll, Spacer); |
| |
| Value_IO.Put (Tax_Roll, Neighborhood(Parcel).Assessed_Value, |
| Fore => 3, Aft =>2, Exp => 0); |
| Ada.Text_IO.New_Line(Tax_Roll); |
| end loop; |
| |
| Ada.Text_IO.Close (Tax_Roll); |
| |
| exception |
| when others => |
| Report.Failed ("Exception raised in Assessor's Office"); |
| end Assessors_Office; |
| |
| |
| Twice_A_Year: |
| declare |
| |
| procedure Collect_Tax(Index : in Integer; |
| Tax_Array : in out Tax_Bill_Array_Type) is |
| ID : String (1..ID_Length); |
| Price : Price_Type := 0.0; |
| Value : Value_Type := 0.00; |
| Price_String : String (1..Price_String_Length); |
| Value_String : String (1..Value_String_Length); |
| begin |
| |
| -- Extract information from the Text_IO file; one string, two |
| -- decimal values. |
| -- Note that the Spacers that were put in the file above are |
| -- not individually read here, due to the fact that each call |
| -- to Decimal_IO.Get below uses a zero in the Width field, |
| -- which allows each Get procedure to skip these leading blanks |
| -- prior to extracting the numeric value. |
| |
| Ada.Text_IO.Get (Tax_Roll, ID); |
| |
| -- A zero value of Width is provided, so the following |
| -- two calls to Decimal_IO.Get will skip the leading blanks, |
| -- (from the Spacer variable above), then read the numeric |
| -- literals. |
| |
| Price_IO.Get (Tax_Roll, Price, 0); |
| Value_IO.Get (Tax_Roll, Value, 0); |
| Ada.Text_IO.Skip_Line (Tax_Roll); |
| |
| -- Convert the values read from the file into string format, |
| -- using user-specified format parameters. |
| -- Format of the Price_String should be "nnn.n" |
| -- Format of the Value_String should be "nnn.nn" |
| |
| Price_IO.Put (To => Price_String, |
| Item => Price, |
| Aft => 1); |
| Value_IO.Put (Value_String, Value, 2); |
| |
| -- Construct a string of length 20 that contains the Parcel_ID, |
| -- the Purchase_Price, and the Assessed_Value, separated by |
| -- two-character blank data spacers. Store this string |
| -- into the string array out parameter. |
| -- Format of each Tax_Array element should be |
| -- "Xnnnn nnn.n nnn.nn" (with an 'n' signifying a digit). |
| |
| Tax_Array(Index) := ID & Spacer & |
| Price_String & Spacer & |
| Value_String; |
| exception |
| when Data_Error => |
| Report.Failed("Data Error raised during the extraction " & |
| "of decimal data from the file"); |
| when others => |
| Report.Failed("Exception in Collect_Tax procedure"); |
| end Collect_Tax; |
| |
| |
| begin -- Twice_A_Year |
| |
| Ada.Text_IO.Open (Tax_Roll, Ada.Text_IO.In_File, Tax_Roll_Name); |
| |
| -- Determine property tax bills for the entire neighborhood from |
| -- the information that is stored in the file. Store information |
| -- in the Neighborhood_Taxes string array. |
| |
| for Parcel in City_Block_Type'Range loop |
| Collect_Tax (Parcel, Neighborhood_Taxes); |
| end loop; |
| |
| exception |
| when others => |
| Report.Failed ("Exception in Twice_A_Year Block"); |
| end Twice_A_Year; |
| |
| -- Use Decimal_IO Get procedure to extract information from a string. |
| -- Verify data against original values. |
| Validation_Block: |
| declare |
| TC_ID : String (1..ID_Length); -- 1..5 |
| TC_Price : Price_Type; |
| TC_Value : Value_Type; |
| Length : Positive; |
| Front, |
| Rear : Integer := 0; |
| begin |
| |
| for Parcel in City_Block_Type'Range loop |
| -- Extract values from the strings of the string array. |
| -- Each element of the string array is 20 characters long; the |
| -- first five characters are the Parcel_ID, two blank characters |
| -- separate data, the next five characters contain the Price |
| -- decimal value, two blank characters separate data, the last |
| -- six characters contain the Value decimal value. |
| -- Extract each of these components in turn. |
| |
| Front := 1; -- 1 |
| Rear := ID_Length; -- 5 |
| TC_ID := Neighborhood_Taxes(Parcel)(Front..Rear); |
| |
| -- Extract the decimal value from the next slice of the string. |
| Front := Rear + 3; -- 8 |
| Rear := Front + Price_String_Length - 1; -- 12 |
| Price_IO.Get (Neighborhood_Taxes(Parcel)(Front..Rear), |
| Item => TC_Price, |
| Last => Length); |
| |
| -- Extract next decimal value from slice of string, based on |
| -- length of preceding strings read from string array element. |
| Front := Rear + 3; -- 15 |
| Rear := Total_String_Length; -- 20 |
| Value_IO.Get (Neighborhood_Taxes(Parcel)(Front..Rear), |
| Item => TC_Value, |
| Last => Length); |
| |
| if TC_ID /= Neighborhood(Parcel).Parcel_ID or |
| TC_Price /= Neighborhood(Parcel).Purchase_Price or |
| TC_Value /= Neighborhood(Parcel).Assessed_Value |
| then |
| Report.Failed ("Incorrect data validation"); |
| end if; |
| |
| end loop; |
| |
| exception |
| when others => Report.Failed ("Exception in Validation Block"); |
| end Validation_Block; |
| |
| -- Check that the Text_IO file is open, then delete. |
| |
| if not Ada.Text_IO.Is_Open (Tax_Roll) then |
| Report.Failed ("File not left open after processing"); |
| Ada.Text_IO.Open (Tax_Roll, Ada.Text_IO.Out_File, Tax_Roll_Name); |
| end if; |
| |
| Ada.Text_IO.Delete (Tax_Roll); |
| |
| exception |
| when others => |
| Report.Failed ("Exception in Taxation block"); |
| -- Check that the Text_IO file is open, then delete. |
| if not Ada.Text_IO.Is_Open (Tax_Roll) then |
| Ada.Text_IO.Open (Tax_Roll, |
| Ada.Text_IO.Out_File, |
| Tax_Roll_Name); |
| end if; |
| Ada.Text_IO.Delete (Tax_Roll); |
| end Taxation; |
| |
| Report.Result; |
| |
| exception |
| when Incomplete => |
| Report.Result; |
| when others => |
| Report.Failed ( "Unexpected exception" ); |
| Report.Result; |
| |
| end CXAA010; |
