-- CXB3008.A
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-- CXB3008.A
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--
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--
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-- Grant of Unlimited Rights
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-- Grant of Unlimited Rights
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--
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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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-- 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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-- 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 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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-- 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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-- 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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-- 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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-- 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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-- 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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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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-- to do so.
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--
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--
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-- DISCLAIMER
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-- DISCLAIMER
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--
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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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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-- 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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-- 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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-- 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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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--*
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--
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--
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-- OBJECTIVE:
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-- OBJECTIVE:
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-- Check that functions imported from the C language and
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-- Check that functions imported from the C language and
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-- libraries can be called from an Ada program.
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-- libraries can be called from an Ada program.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- This test checks that C language functions from the and
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-- This test checks that C language functions from the and
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-- libraries can be used as completions of Ada subprograms.
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-- libraries can be used as completions of Ada subprograms.
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-- A pragma Import with convention identifier "C" is used to complete
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-- A pragma Import with convention identifier "C" is used to complete
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-- the Ada subprogram specifications.
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-- the Ada subprogram specifications.
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-- The three subprogram cases tested are as follows:
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-- The three subprogram cases tested are as follows:
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-- 1) A C function that returns an int value (strcpy) is used as the
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-- 1) A C function that returns an int value (strcpy) is used as the
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-- completion of an Ada procedure specification. The return value
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-- completion of an Ada procedure specification. The return value
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-- is discarded; parameter modification is the desired effect.
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-- is discarded; parameter modification is the desired effect.
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-- 2) A C function that returns an int value (strlen) is used as the
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-- 2) A C function that returns an int value (strlen) is used as the
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-- completion of an Ada function specification.
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-- completion of an Ada function specification.
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-- 3) A C function that returns a double value (strtod) is used as the
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-- 3) A C function that returns a double value (strtod) is used as the
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-- completion of an Ada function specification.
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-- completion of an Ada function specification.
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--
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--
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-- This test assumes that the following characters are all included
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-- This test assumes that the following characters are all included
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-- in the implementation defined type Interfaces.C.char:
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-- in the implementation defined type Interfaces.C.char:
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-- ' ', 'a'..'z', 'A'..'Z', '0'..'9', and '$'.
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-- ' ', 'a'..'z', 'A'..'Z', '0'..'9', and '$'.
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--
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--
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-- APPLICABILITY CRITERIA:
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-- APPLICABILITY CRITERIA:
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-- This test is applicable to all implementations that provide
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-- This test is applicable to all implementations that provide
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-- packages Interfaces.C and Interfaces.C.Strings. If an
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-- packages Interfaces.C and Interfaces.C.Strings. If an
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-- implementation provides these packages, this test must compile,
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-- implementation provides these packages, this test must compile,
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-- execute, and report "PASSED".
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-- execute, and report "PASSED".
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--
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--
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-- SPECIAL REQUIREMENTS:
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-- SPECIAL REQUIREMENTS:
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-- The C language library functions used by this test must be
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-- The C language library functions used by this test must be
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-- available for importing into the test.
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-- available for importing into the test.
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--
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--
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--
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--
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-- CHANGE HISTORY:
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-- CHANGE HISTORY:
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-- 12 Oct 95 SAIC Initial prerelease version.
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-- 12 Oct 95 SAIC Initial prerelease version.
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-- 09 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
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-- 09 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
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-- 01 DEC 97 EDS Replaced all references of C function atof with
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-- 01 DEC 97 EDS Replaced all references of C function atof with
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-- C function strtod.
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-- C function strtod.
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-- 29 JUN 98 EDS Give Ada function corresponding to strtod a
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-- 29 JUN 98 EDS Give Ada function corresponding to strtod a
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-- second parameter.
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-- second parameter.
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--!
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--!
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with Report;
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with Report;
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with Ada.Exceptions;
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with Ada.Exceptions;
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with Interfaces.C; -- N/A => ERROR
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with Interfaces.C; -- N/A => ERROR
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with Interfaces.C.Strings; -- N/A => ERROR
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with Interfaces.C.Strings; -- N/A => ERROR
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with Interfaces.C.Pointers;
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with Interfaces.C.Pointers;
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procedure CXB3008 is
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procedure CXB3008 is
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begin
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begin
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Report.Test ("CXB3008", "Check that functions imported from the " &
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Report.Test ("CXB3008", "Check that functions imported from the " &
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"C language predefined libraries can be " &
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"C language predefined libraries can be " &
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"called from an Ada program");
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"called from an Ada program");
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Test_Block:
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Test_Block:
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declare
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declare
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package IC renames Interfaces.C;
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package IC renames Interfaces.C;
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package ICS renames Interfaces.C.Strings;
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package ICS renames Interfaces.C.Strings;
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package ICP is new Interfaces.C.Pointers
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package ICP is new Interfaces.C.Pointers
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( Index => IC.size_t,
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( Index => IC.size_t,
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Element => IC.char,
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Element => IC.char,
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Element_Array => IC.char_array,
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Element_Array => IC.char_array,
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Default_Terminator => IC.nul );
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Default_Terminator => IC.nul );
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use Ada.Exceptions;
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use Ada.Exceptions;
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use type IC.char;
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use type IC.char;
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use type IC.char_array;
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use type IC.char_array;
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use type IC.size_t;
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use type IC.size_t;
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use type IC.double;
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use type IC.double;
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-- The String_Copy procedure copies the string pointed to by Source,
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-- The String_Copy procedure copies the string pointed to by Source,
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-- including the terminating nul char, into the char_array pointed
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-- including the terminating nul char, into the char_array pointed
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-- to by Target.
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-- to by Target.
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procedure String_Copy (Target : out IC.char_array;
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procedure String_Copy (Target : out IC.char_array;
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Source : in IC.char_array);
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Source : in IC.char_array);
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-- The String_Length function returns the length of the nul-terminated
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-- The String_Length function returns the length of the nul-terminated
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-- string pointed to by The_String. The nul is not included in
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-- string pointed to by The_String. The nul is not included in
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-- the count.
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-- the count.
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function String_Length (The_String : in IC.char_array)
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function String_Length (The_String : in IC.char_array)
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return IC.size_t;
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return IC.size_t;
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-- The String_To_Double function converts the char_array pointed to
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-- The String_To_Double function converts the char_array pointed to
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-- by The_String into a double value returned through the function
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-- by The_String into a double value returned through the function
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-- name. The_String must contain a valid floating-point number; if
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-- name. The_String must contain a valid floating-point number; if
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-- not, the value returned is zero.
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-- not, the value returned is zero.
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-- type Acc_ptr is access IC.char_array;
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-- type Acc_ptr is access IC.char_array;
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function String_To_Double (The_String : in IC.char_array ;
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function String_To_Double (The_String : in IC.char_array ;
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End_Ptr : ICP.Pointer := null)
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End_Ptr : ICP.Pointer := null)
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return IC.double;
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return IC.double;
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-- Use the strcpy function as a completion to the procedure
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-- Use the strcpy function as a completion to the procedure
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-- specification. Note that the Ada interface to this C function is
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-- specification. Note that the Ada interface to this C function is
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-- in the form of a procedure (C function return value is not used).
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-- in the form of a procedure (C function return value is not used).
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pragma Import (C, String_Copy, "strcpy");
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pragma Import (C, String_Copy, "strcpy");
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-- Use the strlen function as a completion to the
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-- Use the strlen function as a completion to the
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-- String_Length function specification.
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-- String_Length function specification.
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pragma Import (C, String_Length, "strlen");
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pragma Import (C, String_Length, "strlen");
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-- Use the strtod function as a completion to the
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-- Use the strtod function as a completion to the
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-- String_To_Double function specification.
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-- String_To_Double function specification.
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pragma Import (C, String_To_Double, "strtod");
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pragma Import (C, String_To_Double, "strtod");
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TC_String : constant String := "Just a Test";
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TC_String : constant String := "Just a Test";
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Char_Source : IC.char_array(0..30);
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Char_Source : IC.char_array(0..30);
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Char_Target : IC.char_array(0..30);
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Char_Target : IC.char_array(0..30);
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Double_Result : IC.double;
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Double_Result : IC.double;
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Source_Ptr,
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Source_Ptr,
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Target_Ptr : ICS.chars_ptr;
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Target_Ptr : ICS.chars_ptr;
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begin
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begin
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-- Check that the imported version of C function strcpy produces
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-- Check that the imported version of C function strcpy produces
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-- the correct results.
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-- the correct results.
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Char_Source(0..21) := "Test of Pragma Import" & IC.nul;
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Char_Source(0..21) := "Test of Pragma Import" & IC.nul;
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String_Copy(Char_Target, Char_Source);
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String_Copy(Char_Target, Char_Source);
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if Char_Target(0..21) /= Char_Source(0..21) then
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if Char_Target(0..21) /= Char_Source(0..21) then
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Report.Failed("Incorrect result from the imported version of " &
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Report.Failed("Incorrect result from the imported version of " &
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"strcpy - 1");
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"strcpy - 1");
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end if;
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end if;
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if String_Length(Char_Target) /= 21 then
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if String_Length(Char_Target) /= 21 then
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Report.Failed("Incorrect result from the imported version of " &
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Report.Failed("Incorrect result from the imported version of " &
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"strlen - 1");
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"strlen - 1");
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end if;
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end if;
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Char_Source(0) := IC.nul;
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Char_Source(0) := IC.nul;
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String_Copy(Char_Target, Char_Source);
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String_Copy(Char_Target, Char_Source);
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if Char_Target(0) /= Char_Source(0) then
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if Char_Target(0) /= Char_Source(0) then
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Report.Failed("Incorrect result from the imported version of " &
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Report.Failed("Incorrect result from the imported version of " &
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"strcpy - 2");
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"strcpy - 2");
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end if;
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end if;
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if String_Length(Char_Target) /= 0 then
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if String_Length(Char_Target) /= 0 then
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Report.Failed("Incorrect result from the imported version of " &
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Report.Failed("Incorrect result from the imported version of " &
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"strlen - 2");
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"strlen - 2");
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end if;
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end if;
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-- The following chars_ptr designates a char_array of 12 chars
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-- The following chars_ptr designates a char_array of 12 chars
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-- (including the terminating nul char).
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-- (including the terminating nul char).
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Source_Ptr := ICS.New_Char_Array(IC.To_C(TC_String));
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Source_Ptr := ICS.New_Char_Array(IC.To_C(TC_String));
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String_Copy(Char_Target, ICS.Value(Source_Ptr));
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String_Copy(Char_Target, ICS.Value(Source_Ptr));
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Target_Ptr := ICS.New_Char_Array(Char_Target);
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Target_Ptr := ICS.New_Char_Array(Char_Target);
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if ICS.Value(Target_Ptr) /= TC_String then
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if ICS.Value(Target_Ptr) /= TC_String then
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Report.Failed("Incorrect result from the imported version of " &
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Report.Failed("Incorrect result from the imported version of " &
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"strcpy - 3");
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"strcpy - 3");
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end if;
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end if;
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if String_Length(ICS.Value(Target_Ptr)) /= TC_String'Length then
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if String_Length(ICS.Value(Target_Ptr)) /= TC_String'Length then
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Report.Failed("Incorrect result from the imported version of " &
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Report.Failed("Incorrect result from the imported version of " &
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"strlen - 3");
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"strlen - 3");
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end if;
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end if;
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Char_Source(0..9) := "100.00only";
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Char_Source(0..9) := "100.00only";
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Double_Result := String_To_Double(Char_Source);
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Double_Result := String_To_Double(Char_Source);
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Char_Source(0..13) := "5050.00$$$$$$$";
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Char_Source(0..13) := "5050.00$$$$$$$";
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if Double_Result + String_To_Double(Char_Source) /= 5150.00 then
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if Double_Result + String_To_Double(Char_Source) /= 5150.00 then
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Report.Failed("Incorrect result returned from the imported " &
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Report.Failed("Incorrect result returned from the imported " &
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"version of function strtod - 1");
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"version of function strtod - 1");
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end if;
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end if;
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Char_Source(0..9) := "xxx$10.00x"; -- String doesn't contain a
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Char_Source(0..9) := "xxx$10.00x"; -- String doesn't contain a
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-- valid floating point value.
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-- valid floating point value.
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if String_To_Double(Char_Source) /= 0.0 then
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if String_To_Double(Char_Source) /= 0.0 then
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Report.Failed("Incorrect result returned from the imported " &
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Report.Failed("Incorrect result returned from the imported " &
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"version of function strtod - 2");
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"version of function strtod - 2");
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end if;
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end if;
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exception
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exception
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when The_Error : others =>
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when The_Error : others =>
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Report.Failed ("The following exception was raised in the " &
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Report.Failed ("The following exception was raised in the " &
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"Test_Block: " & Exception_Name(The_Error));
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"Test_Block: " & Exception_Name(The_Error));
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end Test_Block;
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end Test_Block;
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Report.Result;
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Report.Result;
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end CXB3008;
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end CXB3008;
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