labs.c

eCos操作系统源码

//=================================================================
//
//        labs.c
//
//        Testcase for C library labs()
//
//=================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
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// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//=================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     ctarpy, jlarmour
// Contributors:  
// Date:          2000-04-30
// Description:   Contains testcode for C library labs() function
//
//
//####DESCRIPTIONEND####

// INCLUDES

#include <stdlib.h>
#include <cyg/infra/testcase.h>

// FUNCTIONS

int
main( int argc, char *argv[] )
{
    int x;

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library "
                  "labs() function");

    // Check 1
    x = 5;
    CYG_TEST_PASS_FAIL( labs(x) == 5, "labs(5)");

    // Check 2
    x = -5;
    CYG_TEST_PASS_FAIL( labs(x) == 5, "labs(-5)");
    
    // Check 3
    x = 12345;
    CYG_TEST_PASS_FAIL( labs(x) == 12345, "labs(12345)");

    // Check 4
    x = -23456;
    CYG_TEST_PASS_FAIL( labs(x) == 23456, "labs(-23456");

    // Check 5
    x = 3456789;
    CYG_TEST_PASS_FAIL( labs(x) == 3456789, "labs(3456789");

    // Check 6
    x = -23456789;
    CYG_TEST_PASS_FAIL( labs(x) == 23456789, "labs(-23456789");

//    CYG_TEST_NA("Testing is not applicable to this configuration");

    CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for C library "
                    "labs() function");
} // main()

// EOF labs.c