/* GLIB - Library of useful routines for C programming

 * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

/*

 * Modified by the GLib Team and others 1997-2000.  See the AUTHORS

 * file for a list of people on the GLib Team.  See the ChangeLog

 * files for a list of changes.  These files are distributed with

 * GLib at ftp://ftp.gtk.org/pub/gtk/. 

 */

#ifndef __G_TYPES_H__

#define __G_TYPES_H__

#include <glibconfig.h>

G_BEGIN_DECLS

/* Provide type definitions for commonly used types.

 *  These are useful because a "gint8" can be adjusted

 *  to be 1 byte (8 bits) on all platforms. Similarly and

 *  more importantly, "gint32" can be adjusted to be

 *  4 bytes (32 bits) on all platforms.

 */

typedef char   gchar;

typedef short  gshort;

typedef long   glong;

typedef int    gint;

typedef gint   gboolean;

typedef unsigned char   guchar;

typedef unsigned short  gushort;

typedef unsigned long   gulong;

typedef unsigned int    guint;

typedef float   gfloat;

typedef double  gdouble;

/* Define min and max constants for the fixed size numerical types */

#define G_MININT8	((gint8)  0x80)

#define G_MAXINT8	((gint8)  0x7f)

#define G_MAXUINT8	((guint8) 0xff)

#define G_MININT16	((gint16)  0x8000)

#define G_MAXINT16	((gint16)  0x7fff)

#define G_MAXUINT16	((guint16) 0xffff)

#define G_MININT32	((gint32)  0x80000000)

#define G_MAXINT32	((gint32)  0x7fffffff)

#define G_MAXUINT32	((guint32) 0xffffffff)

#define G_MININT64	((gint64) G_GINT64_CONSTANT(0x8000000000000000))

#define G_MAXINT64	G_GINT64_CONSTANT(0x7fffffffffffffff)

#define G_MAXUINT64	G_GINT64_CONSTANT(0xffffffffffffffffU)

typedef void* gpointer;

typedef const void *gconstpointer;

typedef gint            (*GCompareFunc)         (gconstpointer  a,

                                                 gconstpointer  b);

typedef gint            (*GCompareDataFunc)     (gconstpointer  a,

                                                 gconstpointer  b,

						 gpointer       user_data);

typedef gboolean        (*GEqualFunc)           (gconstpointer  a,

                                                 gconstpointer  b);

typedef void            (*GDestroyNotify)       (gpointer       data);

typedef void            (*GFunc)                (gpointer       data,

                                                 gpointer       user_data);

typedef guint           (*GHashFunc)            (gconstpointer  key);

typedef void            (*GHFunc)               (gpointer       key,

                                                 gpointer       value,

                                                 gpointer       user_data);

typedef void            (*GFreeFunc)            (gpointer       data);

typedef const gchar *   (*GTranslateFunc)       (const gchar   *str,

						 gpointer       data);

/* Define some mathematical constants that aren't available

 * symbolically in some strict ISO C implementations.

 */

#define G_E     2.7182818284590452353602874713526624977572470937000

#define G_LN2   0.69314718055994530941723212145817656807550013436026

#define G_LN10  2.3025850929940456840179914546843642076011014886288

#define G_PI    3.1415926535897932384626433832795028841971693993751

#define G_PI_2  1.5707963267948966192313216916397514420985846996876

#define G_PI_4  0.78539816339744830961566084581987572104929234984378

#define G_SQRT2 1.4142135623730950488016887242096980785696718753769

/* Portable endian checks and conversions

 *

 * glibconfig.h defines G_BYTE_ORDER which expands to one of

 * the below macros.

 */

#define G_LITTLE_ENDIAN 1234

#define G_BIG_ENDIAN    4321

#define G_PDP_ENDIAN    3412		/* unused, need specific PDP check */	

/* Basic bit swapping functions

 */

#define GUINT16_SWAP_LE_BE_CONSTANT(val)	((guint16) ( \

    (guint16) ((guint16) (val) >> 8) |	\

    (guint16) ((guint16) (val) << 8)))

#define GUINT32_SWAP_LE_BE_CONSTANT(val)	((guint32) ( \

    (((guint32) (val) & (guint32) 0x000000ffU) << 24) | \

    (((guint32) (val) & (guint32) 0x0000ff00U) <<  8) | \

    (((guint32) (val) & (guint32) 0x00ff0000U) >>  8) | \

    (((guint32) (val) & (guint32) 0xff000000U) >> 24)))

#define GUINT64_SWAP_LE_BE_CONSTANT(val)	((guint64) ( \

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x00000000000000ffU)) << 56) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x000000000000ff00U)) << 40) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x0000000000ff0000U)) << 24) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x00000000ff000000U)) <<  8) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x000000ff00000000U)) >>  8) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x0000ff0000000000U)) >> 24) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0x00ff000000000000U)) >> 40) |	\

      (((guint64) (val) &						\

	(guint64) G_GINT64_CONSTANT (0xff00000000000000U)) >> 56)))

/* Arch specific stuff for speed

 */

#if defined (__GNUC__) && (__GNUC__ >= 2) && defined (__OPTIMIZE__)

#  if defined (__i386__)

#    define GUINT16_SWAP_LE_BE_IA32(val) \

       (__extension__						\

	({ register guint16 __v, __x = ((guint16) (val));	\

	   if (__builtin_constant_p (__x))			\

	     __v = GUINT16_SWAP_LE_BE_CONSTANT (__x);		\

	   else							\

	     __asm__ ("rorw $8, %w0"				\

		      : "=r" (__v)				\

		      : "0" (__x)				\

		      : "cc");					\

	    __v; }))

#    if !defined (__i486__) && !defined (__i586__) \

	&& !defined (__pentium__) && !defined (__i686__) \

	&& !defined (__pentiumpro__) && !defined (__pentium4__)

#       define GUINT32_SWAP_LE_BE_IA32(val) \

	  (__extension__					\

	   ({ register guint32 __v, __x = ((guint32) (val));	\

	      if (__builtin_constant_p (__x))			\

		__v = GUINT32_SWAP_LE_BE_CONSTANT (__x);	\

	      else						\

		__asm__ ("rorw $8, %w0\n\t"			\

			 "rorl $16, %0\n\t"			\

			 "rorw $8, %w0"				\

			 : "=r" (__v)				\

			 : "0" (__x)				\

			 : "cc");				\

	      __v; }))

#    else /* 486 and higher has bswap */

#       define GUINT32_SWAP_LE_BE_IA32(val) \

	  (__extension__					\

	   ({ register guint32 __v, __x = ((guint32) (val));	\

	      if (__builtin_constant_p (__x))			\

		__v = GUINT32_SWAP_LE_BE_CONSTANT (__x);	\

	      else						\

		__asm__ ("bswap %0"				\

			 : "=r" (__v)				\

			 : "0" (__x));				\

	      __v; }))

#    endif /* processor specific 32-bit stuff */

#    define GUINT64_SWAP_LE_BE_IA32(val) \

       (__extension__							\

	({ union { guint64 __ll;					\

		   guint32 __l[2]; } __w, __r;				\

	   __w.__ll = ((guint64) (val));				\

	   if (__builtin_constant_p (__w.__ll))				\

	     __r.__ll = GUINT64_SWAP_LE_BE_CONSTANT (__w.__ll);		\

	   else								\

	     {								\

	       __r.__l[0] = GUINT32_SWAP_LE_BE (__w.__l[1]);		\

	       __r.__l[1] = GUINT32_SWAP_LE_BE (__w.__l[0]);		\

	     }								\

	   __r.__ll; }))

     /* Possibly just use the constant version and let gcc figure it out? */

#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_IA32 (val))

#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA32 (val))

#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA32 (val))

#  elif defined (__ia64__)

#    define GUINT16_SWAP_LE_BE_IA64(val) \

       (__extension__						\

	({ register guint16 __v, __x = ((guint16) (val));	\

	   if (__builtin_constant_p (__x))			\

	     __v = GUINT16_SWAP_LE_BE_CONSTANT (__x);		\

	   else							\

	     __asm__ __volatile__ ("shl %0 = %1, 48 ;;"		\

				   "mux1 %0 = %0, @rev ;;"	\

				    : "=r" (__v)		\

				    : "r" (__x));		\

	    __v; }))

#    define GUINT32_SWAP_LE_BE_IA64(val) \

       (__extension__						\

	 ({ register guint32 __v, __x = ((guint32) (val));	\

	    if (__builtin_constant_p (__x))			\

	      __v = GUINT32_SWAP_LE_BE_CONSTANT (__x);		\

	    else						\

	     __asm__ __volatile__ ("shl %0 = %1, 32 ;;"		\

				   "mux1 %0 = %0, @rev ;;"	\

				    : "=r" (__v)		\

				    : "r" (__x));		\

	    __v; }))

#    define GUINT64_SWAP_LE_BE_IA64(val) \

       (__extension__						\

	({ register guint64 __v, __x = ((guint64) (val));	\

	   if (__builtin_constant_p (__x))			\

	     __v = GUINT64_SWAP_LE_BE_CONSTANT (__x);		\

	   else							\

	     __asm__ __volatile__ ("mux1 %0 = %1, @rev ;;"	\

				   : "=r" (__v)			\

				   : "r" (__x));		\

	   __v; }))

#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_IA64 (val))

#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA64 (val))

#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA64 (val))

#  elif defined (__x86_64__)

#    define GUINT32_SWAP_LE_BE_X86_64(val) \

       (__extension__						\

	 ({ register guint32 __v, __x = ((guint32) (val));	\

	    if (__builtin_constant_p (__x))			\

	      __v = GUINT32_SWAP_LE_BE_CONSTANT (__x);		\

	    else						\

	     __asm__ ("bswapl %0"				\

		      : "=r" (__v)				\

		      : "0" (__x));				\

	    __v; }))

#    define GUINT64_SWAP_LE_BE_X86_64(val) \

       (__extension__						\

	({ register guint64 __v, __x = ((guint64) (val));	\

	   if (__builtin_constant_p (__x))			\

	     __v = GUINT64_SWAP_LE_BE_CONSTANT (__x);		\

	   else							\

	     __asm__ ("bswapq %0"				\

		      : "=r" (__v)				\

		      : "0" (__x));				\

	   __v; }))

     /* gcc seems to figure out optimal code for this on its own */

#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))

#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86_64 (val))

#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86_64 (val))

#  else /* generic gcc */

#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))

#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))

#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))

#  endif

#else /* generic */

#  define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))

#  define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))

#  define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))

#endif /* generic */

#define GUINT16_SWAP_LE_PDP(val)	((guint16) (val))

#define GUINT16_SWAP_BE_PDP(val)	(GUINT16_SWAP_LE_BE (val))

#define GUINT32_SWAP_LE_PDP(val)	((guint32) ( \

    (((guint32) (val) & (guint32) 0x0000ffffU) << 16) | \

    (((guint32) (val) & (guint32) 0xffff0000U) >> 16)))

#define GUINT32_SWAP_BE_PDP(val)	((guint32) ( \

    (((guint32) (val) & (guint32) 0x00ff00ffU) << 8) | \

    (((guint32) (val) & (guint32) 0xff00ff00U) >> 8)))

/* The G*_TO_?E() macros are defined in glibconfig.h.

 * The transformation is symmetric, so the FROM just maps to the TO.

 */

#define GINT16_FROM_LE(val)	(GINT16_TO_LE (val))

#define GUINT16_FROM_LE(val)	(GUINT16_TO_LE (val))

#define GINT16_FROM_BE(val)	(GINT16_TO_BE (val))

#define GUINT16_FROM_BE(val)	(GUINT16_TO_BE (val))

#define GINT32_FROM_LE(val)	(GINT32_TO_LE (val))

#define GUINT32_FROM_LE(val)	(GUINT32_TO_LE (val))

#define GINT32_FROM_BE(val)	(GINT32_TO_BE (val))

#define GUINT32_FROM_BE(val)	(GUINT32_TO_BE (val))

#define GINT64_FROM_LE(val)	(GINT64_TO_LE (val))

#define GUINT64_FROM_LE(val)	(GUINT64_TO_LE (val))

#define GINT64_FROM_BE(val)	(GINT64_TO_BE (val))

#define GUINT64_FROM_BE(val)	(GUINT64_TO_BE (val))

#define GLONG_FROM_LE(val)	(GLONG_TO_LE (val))

#define GULONG_FROM_LE(val)	(GULONG_TO_LE (val))

#define GLONG_FROM_BE(val)	(GLONG_TO_BE (val))

#define GULONG_FROM_BE(val)	(GULONG_TO_BE (val))

#define GINT_FROM_LE(val)	(GINT_TO_LE (val))

#define GUINT_FROM_LE(val)	(GUINT_TO_LE (val))

#define GINT_FROM_BE(val)	(GINT_TO_BE (val))

#define GUINT_FROM_BE(val)	(GUINT_TO_BE (val))

/* Portable versions of host-network order stuff

 */

#define g_ntohl(val) (GUINT32_FROM_BE (val))

#define g_ntohs(val) (GUINT16_FROM_BE (val))

#define g_htonl(val) (GUINT32_TO_BE (val))

#define g_htons(val) (GUINT16_TO_BE (val))

/* IEEE Standard 754 Single Precision Storage Format (gfloat):

 *

 *        31 30           23 22            0

 * +--------+---------------+---------------+

 * | s 1bit | e[30:23] 8bit | f[22:0] 23bit |

 * +--------+---------------+---------------+

 * B0------------------->B1------->B2-->B3-->

 *

 * IEEE Standard 754 Double Precision Storage Format (gdouble):

 *

 *        63 62            52 51            32   31            0

 * +--------+----------------+----------------+ +---------------+

 * | s 1bit | e[62:52] 11bit | f[51:32] 20bit | | f[31:0] 32bit |

 * +--------+----------------+----------------+ +---------------+

 * B0--------------->B1---------->B2--->B3---->  B4->B5->B6->B7->

 */

/* subtract from biased_exponent to form base2 exponent (normal numbers) */

typedef union  _GDoubleIEEE754	GDoubleIEEE754;

typedef union  _GFloatIEEE754	GFloatIEEE754;

#define G_IEEE754_FLOAT_BIAS	(127)

#define G_IEEE754_DOUBLE_BIAS	(1023)

/* multiply with base2 exponent to get base10 exponent (normal numbers) */

#define G_LOG_2_BASE_10		(0.30102999566398119521)

#if G_BYTE_ORDER == G_LITTLE_ENDIAN

union _GFloatIEEE754

{

  gfloat v_float;

  struct {

    guint mantissa : 23;

    guint biased_exponent : 8;

    guint sign : 1;

  } mpn;

};

union _GDoubleIEEE754

{

  gdouble v_double;

  struct {

    guint mantissa_low : 32;

    guint mantissa_high : 20;

    guint biased_exponent : 11;

    guint sign : 1;

  } mpn;

};

#elif G_BYTE_ORDER == G_BIG_ENDIAN

union _GFloatIEEE754

{

  gfloat v_float;

  struct {

    guint sign : 1;

    guint biased_exponent : 8;

    guint mantissa : 23;

  } mpn;

};

union _GDoubleIEEE754

{

  gdouble v_double;

  struct {

    guint sign : 1;

    guint biased_exponent : 11;

    guint mantissa_high : 20;

    guint mantissa_low : 32;

  } mpn;

};

#else /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */

#error unknown ENDIAN type

#endif /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */

typedef struct _GTimeVal                GTimeVal;

struct _GTimeVal

{

  glong tv_sec;

  glong tv_usec;

};

G_END_DECLS

/* We prefix variable declarations so they can

 * properly get exported in windows dlls.

 */

#ifndef GLIB_VAR

#  ifdef G_PLATFORM_WIN32

#    ifdef GLIB_STATIC_COMPILATION

#      define GLIB_VAR extern

#    else /* !GLIB_STATIC_COMPILATION */

#      ifdef GLIB_COMPILATION

#        ifdef DLL_EXPORT

#          define GLIB_VAR __declspec(dllexport)

#        else /* !DLL_EXPORT */

#          define GLIB_VAR extern

#        endif /* !DLL_EXPORT */

#      else /* !GLIB_COMPILATION */

#        define GLIB_VAR extern __declspec(dllimport)

#      endif /* !GLIB_COMPILATION */

#    endif /* !GLIB_STATIC_COMPILATION */

#  else /* !G_PLATFORM_WIN32 */

#    define GLIB_VAR extern

#  endif /* !G_PLATFORM_WIN32 */

#endif /* GLIB_VAR */

#endif /* __G_TYPES_H__ */