Exponent::Host::CEndian Class Reference

List of all members.

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Detailed Description

Endian conversion routines and byte swapping.

Date:

09/04/2006

Author:

Paul Chana

Version:

1.0.0 Initial version

Note:

All contents of this source code are copyright 2005 Exp Digital Uk.
This source file is covered by the licence conditions of the Infinity API. You should have recieved a copy
with the source code. If you didnt, please refer to http://www.expdigital.co.uk All content is the Intellectual property of Exp Digital Uk.
Certain sections of this code may come from other sources. They are credited where applicable.
If you have comments, suggestions or bug reports please visit http://support.expdigital.co.uk

Id

CEndian.hpp,v 1.5 2007/02/08 21:06:44 paul Exp

Definition at line 27 of file CEndian.hpp.

Public Types

• enum EEndian {
    e_littleEndian = 0,
    e_bigEndian
  }

  Enurmeration of endianess. More...
  

Static Public Member Functions

• static int convertThreeBytesToTwentyFourBitInt (const char *bytes)
• static void convertTwentyFourBitIntToThreeBytes (const int value, char *bytes)
• static CEndian::EEndian getSystemEndianessCompileTime ()
• static CEndian::EEndian getSystemEndianessRunTime ()
• static void swap2Bytes (unsigned char *buffer)
• static unsigned int swapDataBytesIfSystemIsBigEndian (unsigned int bytes)
• static unsigned short swapDataBytesIfSystemIsBigEndian (unsigned short bytes)
• static void swapFourBytesIfSystemIsLittleEndian (unsigned char *buffer)

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Member Enumeration Documentation

enum Exponent::Host::CEndian::EEndian

Enurmeration of endianess.

Enumerator:

e_littleEndian	Little endian systems, INTEL WIN32 MACOSX_UNIBIN
e_bigEndian	Big endian, MACOSX

Definition at line 37 of file CEndian.hpp.

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Member Function Documentation

static int Exponent::Host::CEndian::convertThreeBytesToTwentyFourBitInt

(

const char *

bytes

)

[static]

Convert three bytes to a 24 bit int, uses full 32 bit integer range

Parameters:

bytes

The three data bytes

Return values:

int

The 24 bit int value, in range -0x80000000 to 0x7fffffff

static void Exponent::Host::CEndian::convertTwentyFourBitIntToThreeBytes	(	const int	value,
		char *	bytes
	)			[static]

Convert three bytes to a 24 bit int, uses full 32 bit integer range

Parameters:

	value	The value to convert in range -0x80000000 to 0x7fffffff
	bytes	The three data bytes

static CEndian::EEndian Exponent::Host::CEndian::getSystemEndianessCompileTime

(

)

[static]

Get the endianness of a system at compile time

Return values:

EEndian

The endianess of the system

static CEndian::EEndian Exponent::Host::CEndian::getSystemEndianessRunTime

(

)

[static]

Get the endianness of a system at run time

Return values:

EEndian

The endianess of the system

static void Exponent::Host::CEndian::swap2Bytes

(

unsigned char *

buffer

)

[static]

Swap 2 bytes

Parameters:

buffer

Pointer to two chars that is swapped

static unsigned int Exponent::Host::CEndian::swapDataBytesIfSystemIsBigEndian

(

unsigned int

bytes

)

[static]

Swap the bytes if we are a big endian system

Parameters:

bytes

The data bytes

Return values:

unsigned

int The data bytes swap if big endian

static unsigned short Exponent::Host::CEndian::swapDataBytesIfSystemIsBigEndian

(

unsigned short

bytes

)

[static]

Swap the bytes if we are a big endian system

Parameters:

bytes

The data bytes

Return values:

unsigned

short The data bytes swap if big endian

static void Exponent::Host::CEndian::swapFourBytesIfSystemIsLittleEndian

(

unsigned char *

buffer

)

[static]

Swap four bytes if system is little endian

Parameters:

buffer

Pointer to two chars that is swapped, expected to be 4 bytes long

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