1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Some utility functions for converting between big and little endian.

    15 // 

    16 //

    17 

    18 #include "endian.h"

    19 

    20 

    21 uint32_t misc::reverse_bytes(uint32_t n)

    22 {

    23     unsigned char b0 = (n >> 0*8) & 0xff;

    24     unsigned char b1 = (n >> 1*8) & 0xff;

    25     unsigned char b2 = (n >> 2*8) & 0xff;

    26     unsigned char b3 = (n >> 3*8) & 0xff;

    27 

    28     return (b0 << 3*8) | (b1 << 2*8) | (b2 << 1*8) | (b3 << 0*8);

    29 }

    30 

    31 uint16_t misc::reverse_bytes(uint16_t n)

    32 {

    33     unsigned char b0 = (n >> 0*8) & 0xff;

    34     unsigned char b1 = (n >> 1*8) & 0xff;

    35 

    36     return (b0 << 1*8) | (b1 << 0*8);

    37 }

    38