1 /*

     2 * Copyright (c) 2005 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:Provides functions to compare two TReal values.

    15 *

    16 */

    17 

    18 

    19 #ifndef POSLMTREALCOMPARE_H

    20 #define POSLMTREALCOMPARE_H

    21 

    22 // INCLUDES

    23 #include <e32math.h>

    24 

    25 // CONSTANTS

    26 

    27 // FORWARD DECLARATIONS

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 * Provides functions to compare two TReal values.

    33 */

    34 class PosLmTrealCompare

    35     {

    36 

    37     public:  // New functions

    38 

    39         /**

    40         * Compares two real values. Also compares with NaN.

    41         * If aReal1 == NaN == aReal2, ETrue is returned.

    42         *

    43         * @param aReal1 A real value.

    44         * @param aReal2 A real value.

    45         * @return ETrue if equal, otherwise EFalse.

    46         */

    47         IMPORT_C static TBool IsEqual(

    48         /* IN */        TReal32 aReal1,

    49         /* IN */        TReal32 aReal2

    50         );

    51 

    52         /**

    53         * Compares two real values. Also compares with NaN.

    54         * If aReal1 == NaN == aReal2, ETrue is returned.

    55         *

    56         * @param aReal1 A real value.

    57         * @param aReal2 A real value.

    58         * @return ETrue if equal, otherwise EFalse.

    59         */

    60         IMPORT_C static TBool IsEqual(

    61         /* IN */        TReal64 aReal1,

    62         /* IN */        TReal64 aReal2

    63         );

    64 

    65         /**

    66         * Compares two real values. Also compares with NaN.

    67         * If aReal1 == NaN == aReal2, ETrue is returned.

    68         *

    69         * @param aReal1 A real value.

    70         * @param aReal2 A real value.

    71         * @return ETrue if equal, otherwise EFalse.

    72         */

    73         IMPORT_C static TBool IsEqual(

    74         /* IN */        TRealX aReal1,

    75         /* IN */        TRealX aReal2

    76         );

    77 

    78     };

    79 

    80 #endif      // POSLMTREALCOMPARE_H

    81 

    82 // End of File