Endian.h File Reference

Detect host endianness and provide tools to swap bytes if necessary. More...

#include <sci_defs/config_defs.h>
#include <string>
#include <Core/Utils/Legacy/share.h>

Go to the source code of this file.

Namespaces
	SCIRun
	STL datatypes needed.

Macros
#define	SWAP_2(u2)
#define	SWAP_4(u4)
#define	SWAP_8(u8)

Functions
void	swapbytes (bool &)
void	swapbytes (int8_t &)
void	swapbytes (uint8_t &)
void	swapbytes (int16_t &i)
void	swapbytes (uint16_t &i)
void	swapbytes (int32_t &i)
void	swapbytes (uint32_t &i)
void	swapbytes (int64_t &i)
void	swapbytes (uint64_t &i)
void	swapbytes (float &i)
void	swapbytes (double &i)
bool	isBigEndian ()
bool	isLittleEndian ()
std::string	endianness ()

Detailed Description

Detect host endianness and provide tools to swap bytes if necessary.

Author

Kurt Zimmerman Department of Computer Science University of Utah

Date

January 2001

Macro Definition Documentation

#define SWAP_2

(

u2

)

Value:

/* IronDoc macro to swap two byte quantity */ \
  { unsigned char* _p = reinterpret_cast<unsigned char*>(&(u2)); \
    unsigned char _c =   *_p; *_p = _p[1]; _p[1] = _c; }

#define SWAP_4

(

u4

)

Value:

/* IronDoc macro to swap four byte quantity */ \
  { unsigned char* _p = reinterpret_cast<unsigned char*>(&(u4)); \
    unsigned char  _c =   *_p; *_p = _p[3]; _p[3] = _c; \
                   _c = *++_p; *_p = _p[1]; _p[1] = _c; }

#define SWAP_8

(

u8

)

Value:

/* IronDoc macro to swap eight byte quantity */ \
  { unsigned char* _p = reinterpret_cast<unsigned char*>(&(u8)); \
    unsigned char  _c =   *_p; *_p = _p[7]; _p[7] = _c; \
                   _c = *++_p; *_p = _p[5]; _p[5] = _c; \
                   _c = *++_p; *_p = _p[3]; _p[3] = _c; \
                   _c = *++_p; *_p = _p[1]; _p[1] = _c; }