ref: 205443a1cccac1dcd3e9648ef53b7b7eba4e1fb8
dir: /amr-wb/typedefs.h/
/*
*
* File : typedefs.h
* Description : Definition of platform independent data
* types and constants
*
*
* The following platform independent data types and corresponding
* preprocessor (#define) constants are defined:
*
* defined type meaning corresponding constants
* ----------------------------------------------------------
* Char character (none)
* Bool boolean true, false
* Word8 8-bit signed minWord8, maxWord8
* UWord8 8-bit unsigned minUWord8, maxUWord8
* Word16 16-bit signed minWord16, maxWord16
* UWord16 16-bit unsigned minUWord16, maxUWord16
* Word32 32-bit signed minWord32, maxWord32
* UWord32 32-bit unsigned minUWord32, maxUWord32
* Float floating point minFloat, maxFloat
*
*
* The following compile switches are #defined:
*
* PLATFORM string indicating platform progam is compiled on
* possible values: "OSF", "PC", "SUN"
*
* OSF only defined if the current platform is an Alpha
* PC only defined if the current platform is a PC
* SUN only defined if the current platform is a Sun
*
* LSBFIRST is defined if the byte order on this platform is
* "least significant byte first" -> defined on DEC Alpha
* and PC, undefined on Sun
*
********************************************************************************
*/
#ifndef typedefs_h
#define typedefs_h "$Id $"
/*
********************************************************************************
* INCLUDE FILES
********************************************************************************
*/
#include <float.h>
#include <limits.h>
/*
********************************************************************************
* DEFINITION OF CONSTANTS
********************************************************************************
*/
/*
********* define char type
*/
typedef char Char;
/*
********* define 8 bit signed/unsigned types & constants
*/
#if SCHAR_MAX == 127
typedef signed char Word8;
#define minWord8 SCHAR_MIN
#define maxWord8 SCHAR_MAX
typedef unsigned char UWord8;
#define minUWord8 0
#define maxUWord8 UCHAR_MAX
#else
#error cannot find 8-bit type
#endif
/*
********* define 16 bit signed/unsigned types & constants
*/
#if INT_MAX == 32767
typedef int Word16;
#define minWord16 INT_MIN
#define maxWord16 INT_MAX
typedef unsigned int UWord16;
#define minUWord16 0
#define maxUWord16 UINT_MAX
#elif SHRT_MAX == 32767
typedef short Word16;
#define minWord16 SHRT_MIN
#define maxWord16 SHRT_MAX
typedef unsigned short UWord16;
#define minUWord16 0
#define maxUWord16 USHRT_MAX
#else
#error cannot find 16-bit type
#endif
/*
********* define 32 bit signed/unsigned types & constants
*/
#if INT_MAX == 2147483647
typedef int Word32;
#define minWord32 INT_MIN
#define maxWord32 INT_MAX
typedef unsigned int UWord32;
#define minUWord32 0
#define maxUWord32 UINT_MAX
#elif LONG_MAX == 2147483647
typedef long Word32;
#define minWord32 LONG_MIN
#define maxWord32 LONG_MAX
typedef unsigned long UWord32;
#define minUWord32 0
#define maxUWord32 ULONG_MAX
#else
#error cannot find 32-bit type
#endif
/*
********* define floating point type & constants
*/
/* use "#if 0" below if Float should be double;
use "#if 1" below if Float should be float
*/
#if 0
typedef float Float;
#define maxFloat FLT_MAX
#define minFloat FLT_MIN
#else
typedef double Float;
#define maxFloat DBL_MAX
#define minFloat DBL_MIN
#endif
/*
********* define complex type
*/
typedef struct {
Float r; /* real part */
Float i; /* imaginary part */
} CPX;
/*
********* define boolean type
*/
typedef int Bool;
#define false 0
#define true 1
/*
********* Check current platform
*/
#if defined(__MSDOS__)
#define PC
#define PLATFORM "PC"
#define LSBFIRST
#elif defined(__osf__)
#define OSF
#define PLATFORM "OSF"
#define LSBFIRST
#elif defined(__sun__) || defined(__sun)
#define SUN
#define PLATFORM "SUN"
#undef LSBFIRST
#elif defined(linux) && (defined(i386) || defined(__amd64__))
#define PC
#define PLATFORM "PC"
#define LSBFIRST
#else
#error "can't determine architecture; adapt typedefs.h to your platform"
#endif
#endif