1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * FUNCTION

    16 * <<abs>>---integer absolute value (magnitude)

    17 * INDEX

    18 * abs

    19 * ANSI_SYNOPSIS

    20 * #include <stdlib.h>

    21 * int abs(int <[i]>);

    22 * TRAD_SYNOPSIS

    23 * #include <stdlib.h>

    24 * int abs(<[i]>)

    25 * int <[i]>;

    26 * <<abs>> returns

    27 * @tex

    28 * $|x|$,

    29 * @end tex

    30 * the absolute value of <[i]> (also called the magnitude

    31 * of <[i]>).  That is, if <[i]> is negative, the result is the opposite

    32 * of <[i]>, but if <[i]> is nonnegative the result is <[i]>.

    33 * The similar function <<labs>> uses and returns <<long>> rather than <<int>> values.

    34 * RETURNS

    35 * The result is a nonnegative integer.

    36 * PORTABILITY

    37 * <<abs>> is ANSI.

    38 * No supporting OS subroutines are required.

    39 * 

    40 *

    41 */

    42 

    43 

    44 

    45 #include <stdlib.h>

    46 

    47 /**

    48 Return absolute value of integer parameter.

    49 @return   The absolute value of n.

    50 @param i Integer value.

    51 */

    52 EXPORT_C int abs (int i)

    53 {

    54   return (i < 0) ? -i : i;

    55 }