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/* Copyright (c) 2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#ifndef __SHARED_H__
#define __SHARED_H__
/* LATER find a proper place for #include <limits.h> */
#ifdef INT_MAX
#define SHARED_INT_MAX INT_MAX
#else
#define SHARED_INT_MAX 0x7FFFFFFF
#endif
#ifdef INT_MIN
#define SHARED_INT_MIN INT_MIN
#else
#define SHARED_INT_MIN ((int)0x80000000)
#endif
/* LATER find a proper place for #include <float.h> */
#ifdef FLT_MAX
#define SHARED_FLT_MAX FLT_MAX
#else
#define SHARED_FLT_MAX 1E+36
#endif
typedef unsigned long shared_t_bitmask;
/* this is for GNU/Linux and also Debian GNU/Hurd and GNU/kFreeBSD */
#if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__GNU__) || defined(__GLIBC__)
#include <sys/types.h>
#ifndef int32
typedef int32_t int32;
#endif
#ifndef uint32
typedef u_int32_t uint32;
#endif
#ifndef int16
typedef int16_t int16;
#endif
#ifndef uint16
typedef u_int16_t uint16;
#endif
#ifndef uchar
typedef u_int8_t uchar;
#endif
#include <endian.h>
#if !defined(__BYTE_ORDER) || !defined(__LITTLE_ENDIAN)
#error No byte order defined
#endif
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define SHARED_HIOFFSET 1
#define SHARED_LOWOFFSET 0
#else
#define SHARED_HIOFFSET 0
#define SHARED_LOWOFFSET 1
#endif
#endif
#ifdef _WIN32
#ifndef int32
typedef long int32;
#endif
#ifndef uint32
typedef unsigned long uint32;
#endif
#ifndef int16
typedef short int16;
#endif
#ifndef uint16
typedef unsigned short uint16;
#endif
#ifndef uchar
typedef unsigned char uchar;
#endif
#define SHARED_HIOFFSET 1
#define SHARED_LOWOFFSET 0
#endif
#ifdef __APPLE__
#ifndef int32
typedef int int32;
#endif
#ifndef uint32
typedef unsigned int uint32;
#endif
#ifndef int16
typedef short int16;
#endif
#ifndef uint16
typedef unsigned short uint16;
#endif
#ifndef uchar
typedef unsigned char uchar;
#endif
#ifdef __BIG_ENDIAN__
#define SHARED_HIOFFSET 0
#define SHARED_LOWOFFSET 1
#else
#define SHARED_HIOFFSET 1
#define SHARED_LOWOFFSET 0
#endif
#endif
#ifdef IRIX
#ifndef int32
typedef long int32;
#endif
#ifndef uint32
typedef unsigned long uint32;
#endif
#ifndef int16
typedef short int16;
#endif
#ifndef uint16
typedef unsigned short uint16;
#endif
#ifndef uchar
typedef unsigned char uchar;
#endif
#define SHARED_HIOFFSET 0
#define SHARED_LOWOFFSET 1
#endif
#ifdef __FreeBSD__
#include <sys/types.h>
#ifndef int32
typedef int32_t int32;
#endif
#ifndef uint32
typedef u_int32_t uint32;
#endif
#ifndef int16
typedef int16_t int16;
#endif
#ifndef uint16
typedef u_int16_t uint16;
#endif
#ifndef uchar
typedef u_int8_t uchar;
#endif
#include <machine/endian.h>
#if BYTE_ORDER == LITTLE_ENDIAN
#define SHARED_HIOFFSET 1
#define SHARED_LOWOFFSET 0
#else
#define SHARED_HIOFFSET 0
#define SHARED_LOWOFFSET 1
#endif
#endif
#define SHARED_UNITBIT32 1572864. /* 3*(2^19) gives 32 fractional bits */
#define SHARED_UNITBIT0 6755399441055744. /* 3*(2^51), no fractional bits */
#define SHARED_UNITBIT0_HIPART 0x43380000
typedef union _shared_wrappy
{
double w_d;
int32 w_i[2];
} t_shared_wrappy;
typedef union _shared_floatint
{
t_float fi_f;
int32 fi_i;
} t_shared_floatint;
#define SHARED_TRUEBITS 0x3f800000 /* t_float f = 1; *(int32 *)&f */
#define SHARED_PI 3.14159265359
#define SHARED_2PI 6.28318530718
#ifndef PD_BADFLOAT
#ifdef __i386__
#define PD_BADFLOAT(f) ((((*(unsigned int*)&(f))&0x7f800000)==0) || \
(((*(unsigned int*)&(f))&0x7f800000)==0x7f800000))
#else
#define PD_BADFLOAT(f) 0
#endif
#endif
#ifndef PD_BIGORSMALL
#ifdef __i386__
#define PD_BIGORSMALL(f) ((((*(unsigned int*)&(f))&0x60000000)==0) || \
(((*(unsigned int*)&(f))&0x60000000)==0x60000000))
#else
#define PD_BIGORSMALL(f) 0
#endif
#endif
/* support older Pd versions without sys_open(), sys_fopen(), sys_fclose() */
#if PD_MAJOR_VERSION == 0 && PD_MINOR_VERSION < 44
#define sys_open open
#define sys_fopen fopen
#define sys_fclose fclose
#endif
#endif
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