mingw/glib2/glib/gtypes.h - kiwivm - Git at Google

 /* 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 2.1 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, see <http://www.gnu.org/licenses/>.
  */

 /*
  * 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__

 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
 #error "Only <glib.h> can be included directly."
 #endif

 #include <glibconfig.h>
 #include <glib/gmacros.h>
 #include <glib/gversionmacros.h>
 #include <time.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 */
 /**
  * G_MININT8: (value -128)
  *
  * The minimum value which can be held in a #gint8.
  *
  * Since: 2.4
  */
 #define G_MININT8	((gint8) (-G_MAXINT8 - 1))
 #define G_MAXINT8	((gint8)  0x7f)
 #define G_MAXUINT8	((guint8) 0xff)

 /**
  * G_MININT16: (value -32768)
  *
  * The minimum value which can be held in a #gint16.
  *
  * Since: 2.4
  */
 #define G_MININT16	((gint16) (-G_MAXINT16 - 1))
 #define G_MAXINT16	((gint16)  0x7fff)
 #define G_MAXUINT16	((guint16) 0xffff)

 /**
  * G_MININT32: (value -2147483648)
  *
  * The minimum value which can be held in a #gint32.
  *
  * Since: 2.4
  */
 #define G_MININT32	((gint32) (-G_MAXINT32 - 1))
 #define G_MAXINT32	((gint32)  0x7fffffff)
 #define G_MAXUINT32	((guint32) 0xffffffff)

 /**
  * G_MININT64: (value -9223372036854775808)
  *
  * The minimum value which can be held in a #gint64.
  */
 #define G_MININT64	((gint64) (-G_MAXINT64 - G_GINT64_CONSTANT(1)))
 #define G_MAXINT64	G_GINT64_CONSTANT(0x7fffffffffffffff)
 #define G_MAXUINT64	G_GUINT64_CONSTANT(0xffffffffffffffff)

 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);

 /**
  * GCopyFunc:
  * @src: (not nullable): A pointer to the data which should be copied
  * @data: Additional data
  *
  * A function of this signature is used to copy the node data
  * when doing a deep-copy of a tree.
  *
  * Returns: (not nullable): A pointer to the copy
  *
  * Since: 2.4
  */
 typedef gpointer	(*GCopyFunc)            (gconstpointer  src,
                                                  gpointer       data);
 /**
  * GFreeFunc:
  * @data: a data pointer
  *
  * Declares a type of function which takes an arbitrary
  * data pointer argument and has no return value. It is
  * not currently used in GLib or GTK+.
  */
 typedef void            (*GFreeFunc)            (gpointer       data);

 /**
  * GTranslateFunc:
  * @str: the untranslated string
  * @data: user data specified when installing the function, e.g.
  *  in g_option_group_set_translate_func()
  *
  * The type of functions which are used to translate user-visible
  * strings, for <option>--help</option> output.
  *
  * Returns: a translation of the string for the current locale.
  *  The returned string is owned by GLib and must not be freed.
  */
 typedef const gchar *   (*GTranslateFunc)       (const gchar   *str,
 						 gpointer       data);


 /* Define some mathematical constants that aren't available
  * symbolically in some strict ISO C implementations.
  *
  * Note that the large number of digits used in these definitions
  * doesn't imply that GLib or current computers in general would be
  * able to handle floating point numbers with an accuracy like this.
  * It's mostly an exercise in futility and future proofing. For
  * extended precision floating point support, look somewhere else
  * than GLib.
  */
 #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 __GNUC__ >= 4 && defined (__GNUC_MINOR__) && __GNUC_MINOR__ >= 3
 #    define GUINT32_SWAP_LE_BE(val) ((guint32) __builtin_bswap32 ((guint32) (val)))
 #    define GUINT64_SWAP_LE_BE(val) ((guint64) __builtin_bswap64 ((guint64) (val)))
 #  endif

 #  if defined (__i386__)
 #    define GUINT16_SWAP_LE_BE_IA32(val) \
        (G_GNUC_EXTENSION					\
 	({ 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) \
 	  (G_GNUC_EXTENSION					\
 	   ({ 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) \
 	  (G_GNUC_EXTENSION					\
 	   ({ 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) \
        (G_GNUC_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))
 #    ifndef GUINT32_SWAP_LE_BE
 #      define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA32 (val))
 #    endif
 #    ifndef GUINT64_SWAP_LE_BE
 #      define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA32 (val))
 #    endif
 #  elif defined (__ia64__)
 #    define GUINT16_SWAP_LE_BE_IA64(val) \
        (G_GNUC_EXTENSION					\
 	({ 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) \
        (G_GNUC_EXTENSION					\
 	 ({ 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) \
        (G_GNUC_EXTENSION					\
 	({ 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))
 #    ifndef GUINT32_SWAP_LE_BE
 #      define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA64 (val))
 #    endif
 #    ifndef GUINT64_SWAP_LE_BE
 #      define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA64 (val))
 #    endif
 #  elif defined (__x86_64__)
 #    define GUINT32_SWAP_LE_BE_X86_64(val) \
        (G_GNUC_EXTENSION					\
 	 ({ 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) \
        (G_GNUC_EXTENSION					\
 	({ 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))
 #    ifndef GUINT32_SWAP_LE_BE
 #      define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86_64 (val))
 #    endif
 #    ifndef GUINT64_SWAP_LE_BE
 #      define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86_64 (val))
 #    endif
 #  else /* generic gcc */
 #    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
 #    ifndef GUINT32_SWAP_LE_BE
 #      define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
 #    endif
 #    ifndef GUINT64_SWAP_LE_BE
 #      define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))
 #    endif
 #  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))

 #define GSIZE_FROM_LE(val)	(GSIZE_TO_LE (val))
 #define GSSIZE_FROM_LE(val)	(GSSIZE_TO_LE (val))
 #define GSIZE_FROM_BE(val)	(GSIZE_TO_BE (val))
 #define GSSIZE_FROM_BE(val)	(GSSIZE_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))

 /* Overflow-checked unsigned integer arithmetic
  */
 #ifndef _GLIB_TEST_OVERFLOW_FALLBACK
 /* https://bugzilla.gnome.org/show_bug.cgi?id=769104 */
 #if __GNUC__ >= 5 && !defined(__INTEL_COMPILER)
 #define _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
 #elif g_macro__has_builtin(__builtin_uadd_overflow)
 #define _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
 #endif
 #endif

 #define g_uint_checked_add(dest, a, b) \
     _GLIB_CHECKED_ADD_U32(dest, a, b)
 #define g_uint_checked_mul(dest, a, b) \
     _GLIB_CHECKED_MUL_U32(dest, a, b)

 #define g_uint64_checked_add(dest, a, b) \
     _GLIB_CHECKED_ADD_U64(dest, a, b)
 #define g_uint64_checked_mul(dest, a, b) \
     _GLIB_CHECKED_MUL_U64(dest, a, b)

 #if GLIB_SIZEOF_SIZE_T == 8
 #define g_size_checked_add(dest, a, b) \
     _GLIB_CHECKED_ADD_U64(dest, a, b)
 #define g_size_checked_mul(dest, a, b) \
     _GLIB_CHECKED_MUL_U64(dest, a, b)
 #else
 #define g_size_checked_add(dest, a, b) \
     _GLIB_CHECKED_ADD_U32(dest, a, b)
 #define g_size_checked_mul(dest, a, b) \
     _GLIB_CHECKED_MUL_U32(dest, a, b)
 #endif

 /* The names of the following inlines are private.  Use the macro
  * definitions above.
  */
 #ifdef _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
 static inline gboolean _GLIB_CHECKED_ADD_U32 (guint32 *dest, guint32 a, guint32 b) {
   return !__builtin_uadd_overflow(a, b, dest); }
 static inline gboolean _GLIB_CHECKED_MUL_U32 (guint32 *dest, guint32 a, guint32 b) {
   return !__builtin_umul_overflow(a, b, dest); }
 static inline gboolean _GLIB_CHECKED_ADD_U64 (guint64 *dest, guint64 a, guint64 b) {
   G_STATIC_ASSERT(sizeof (unsigned long long) == sizeof (guint64));
   return !__builtin_uaddll_overflow(a, b, (unsigned long long *) dest); }
 static inline gboolean _GLIB_CHECKED_MUL_U64 (guint64 *dest, guint64 a, guint64 b) {
   return !__builtin_umulll_overflow(a, b, (unsigned long long *) dest); }
 #else
 static inline gboolean _GLIB_CHECKED_ADD_U32 (guint32 *dest, guint32 a, guint32 b) {
   *dest = a + b; return *dest >= a; }
 static inline gboolean _GLIB_CHECKED_MUL_U32 (guint32 *dest, guint32 a, guint32 b) {
   *dest = a * b; return !a || *dest / a == b; }
 static inline gboolean _GLIB_CHECKED_ADD_U64 (guint64 *dest, guint64 a, guint64 b) {
   *dest = a + b; return *dest >= a; }
 static inline gboolean _GLIB_CHECKED_MUL_U64 (guint64 *dest, guint64 a, guint64 b) {
   *dest = a * b; return !a || *dest / a == b; }
 #endif

 /* 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 GLIB_DEPRECATED_TYPE_IN_2_62_FOR(GDateTime);

 struct _GTimeVal
 {
   glong tv_sec;
   glong tv_usec;
 } GLIB_DEPRECATED_TYPE_IN_2_62_FOR(GDateTime);

 typedef gint grefcount;
 typedef gint gatomicrefcount;  /* should be accessed only using atomics */

 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 extern __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 _GLIB_EXTERN
 #  endif /* !G_PLATFORM_WIN32 */
 #endif /* GLIB_VAR */

 #endif /* __G_TYPES_H__ */
	/* 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 2.1 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, see <http://www.gnu.org/licenses/>.
	*/

	/*
	* 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__

	#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
	#error "Only <glib.h> can be included directly."
	#endif

	#include <glibconfig.h>
	#include <glib/gmacros.h>
	#include <glib/gversionmacros.h>
	#include <time.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 */
	/**
	* G_MININT8: (value -128)
	*
	* The minimum value which can be held in a #gint8.
	*
	* Since: 2.4
	*/
	#define G_MININT8 ((gint8) (-G_MAXINT8 - 1))
	#define G_MAXINT8 ((gint8) 0x7f)
	#define G_MAXUINT8 ((guint8) 0xff)

	/**
	* G_MININT16: (value -32768)
	*
	* The minimum value which can be held in a #gint16.
	*
	* Since: 2.4
	*/
	#define G_MININT16 ((gint16) (-G_MAXINT16 - 1))
	#define G_MAXINT16 ((gint16) 0x7fff)
	#define G_MAXUINT16 ((guint16) 0xffff)

	/**
	* G_MININT32: (value -2147483648)
	*
	* The minimum value which can be held in a #gint32.
	*
	* Since: 2.4
	*/
	#define G_MININT32 ((gint32) (-G_MAXINT32 - 1))
	#define G_MAXINT32 ((gint32) 0x7fffffff)
	#define G_MAXUINT32 ((guint32) 0xffffffff)

	/**
	* G_MININT64: (value -9223372036854775808)
	*
	* The minimum value which can be held in a #gint64.
	*/
	#define G_MININT64 ((gint64) (-G_MAXINT64 - G_GINT64_CONSTANT(1)))
	#define G_MAXINT64 G_GINT64_CONSTANT(0x7fffffffffffffff)
	#define G_MAXUINT64 G_GUINT64_CONSTANT(0xffffffffffffffff)

	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);

	/**
	* GCopyFunc:
	* @src: (not nullable): A pointer to the data which should be copied
	* @data: Additional data
	*
	* A function of this signature is used to copy the node data
	* when doing a deep-copy of a tree.
	*
	* Returns: (not nullable): A pointer to the copy
	*
	* Since: 2.4
	*/
	typedef gpointer (*GCopyFunc) (gconstpointer src,
	gpointer data);
	/**
	* GFreeFunc:
	* @data: a data pointer
	*
	* Declares a type of function which takes an arbitrary
	* data pointer argument and has no return value. It is
	* not currently used in GLib or GTK+.
	*/
	typedef void (*GFreeFunc) (gpointer data);

	/**
	* GTranslateFunc:
	* @str: the untranslated string
	* @data: user data specified when installing the function, e.g.
	* in g_option_group_set_translate_func()
	*
	* The type of functions which are used to translate user-visible
	* strings, for <option>--help</option> output.
	*
	* Returns: a translation of the string for the current locale.
	* The returned string is owned by GLib and must not be freed.
	*/
	typedef const gchar * (GTranslateFunc) (const gchar str,
	gpointer data);


	/* Define some mathematical constants that aren't available
	* symbolically in some strict ISO C implementations.
	*
	* Note that the large number of digits used in these definitions
	* doesn't imply that GLib or current computers in general would be
	* able to handle floating point numbers with an accuracy like this.
	* It's mostly an exercise in futility and future proofing. For
	* extended precision floating point support, look somewhere else
	* than GLib.
	*/
	#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 __GNUC__ >= 4 && defined (__GNUC_MINOR__) && __GNUC_MINOR__ >= 3
	# define GUINT32_SWAP_LE_BE(val) ((guint32) __builtin_bswap32 ((guint32) (val)))
	# define GUINT64_SWAP_LE_BE(val) ((guint64) __builtin_bswap64 ((guint64) (val)))
	# endif

	# if defined (__i386__)
	# define GUINT16_SWAP_LE_BE_IA32(val) \
	(G_GNUC_EXTENSION \
	({ 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) \
	(G_GNUC_EXTENSION \
	({ 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) \
	(G_GNUC_EXTENSION \
	({ 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) \
	(G_GNUC_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))
	# ifndef GUINT32_SWAP_LE_BE
	# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA32 (val))
	# endif
	# ifndef GUINT64_SWAP_LE_BE
	# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA32 (val))
	# endif
	# elif defined (__ia64__)
	# define GUINT16_SWAP_LE_BE_IA64(val) \
	(G_GNUC_EXTENSION \
	({ 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) \
	(G_GNUC_EXTENSION \
	({ 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) \
	(G_GNUC_EXTENSION \
	({ 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))
	# ifndef GUINT32_SWAP_LE_BE
	# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA64 (val))
	# endif
	# ifndef GUINT64_SWAP_LE_BE
	# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA64 (val))
	# endif
	# elif defined (__x86_64__)
	# define GUINT32_SWAP_LE_BE_X86_64(val) \
	(G_GNUC_EXTENSION \
	({ 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) \
	(G_GNUC_EXTENSION \
	({ 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))
	# ifndef GUINT32_SWAP_LE_BE
	# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86_64 (val))
	# endif
	# ifndef GUINT64_SWAP_LE_BE
	# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86_64 (val))
	# endif
	# else /* generic gcc */
	# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
	# ifndef GUINT32_SWAP_LE_BE
	# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
	# endif
	# ifndef GUINT64_SWAP_LE_BE
	# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))
	# endif
	# 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))

	#define GSIZE_FROM_LE(val) (GSIZE_TO_LE (val))
	#define GSSIZE_FROM_LE(val) (GSSIZE_TO_LE (val))
	#define GSIZE_FROM_BE(val) (GSIZE_TO_BE (val))
	#define GSSIZE_FROM_BE(val) (GSSIZE_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))

	/* Overflow-checked unsigned integer arithmetic
	*/
	#ifndef _GLIB_TEST_OVERFLOW_FALLBACK
	/* https://bugzilla.gnome.org/show_bug.cgi?id=769104 */
	#if __GNUC__ >= 5 && !defined(__INTEL_COMPILER)
	#define _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
	#elif g_macro__has_builtin(__builtin_uadd_overflow)
	#define _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
	#endif
	#endif

	#define g_uint_checked_add(dest, a, b) \
	_GLIB_CHECKED_ADD_U32(dest, a, b)
	#define g_uint_checked_mul(dest, a, b) \
	_GLIB_CHECKED_MUL_U32(dest, a, b)

	#define g_uint64_checked_add(dest, a, b) \
	_GLIB_CHECKED_ADD_U64(dest, a, b)
	#define g_uint64_checked_mul(dest, a, b) \
	_GLIB_CHECKED_MUL_U64(dest, a, b)

	#if GLIB_SIZEOF_SIZE_T == 8
	#define g_size_checked_add(dest, a, b) \
	_GLIB_CHECKED_ADD_U64(dest, a, b)
	#define g_size_checked_mul(dest, a, b) \
	_GLIB_CHECKED_MUL_U64(dest, a, b)
	#else
	#define g_size_checked_add(dest, a, b) \
	_GLIB_CHECKED_ADD_U32(dest, a, b)
	#define g_size_checked_mul(dest, a, b) \
	_GLIB_CHECKED_MUL_U32(dest, a, b)
	#endif

	/* The names of the following inlines are private. Use the macro
	* definitions above.
	*/
	#ifdef _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
	static inline gboolean _GLIB_CHECKED_ADD_U32 (guint32 *dest, guint32 a, guint32 b) {
	return !__builtin_uadd_overflow(a, b, dest); }
	static inline gboolean _GLIB_CHECKED_MUL_U32 (guint32 *dest, guint32 a, guint32 b) {
	return !__builtin_umul_overflow(a, b, dest); }
	static inline gboolean _GLIB_CHECKED_ADD_U64 (guint64 *dest, guint64 a, guint64 b) {
	G_STATIC_ASSERT(sizeof (unsigned long long) == sizeof (guint64));
	return !__builtin_uaddll_overflow(a, b, (unsigned long long *) dest); }
	static inline gboolean _GLIB_CHECKED_MUL_U64 (guint64 *dest, guint64 a, guint64 b) {
	return !__builtin_umulll_overflow(a, b, (unsigned long long *) dest); }
	#else
	static inline gboolean _GLIB_CHECKED_ADD_U32 (guint32 *dest, guint32 a, guint32 b) {
	dest = a + b; return dest >= a; }
	static inline gboolean _GLIB_CHECKED_MUL_U32 (guint32 *dest, guint32 a, guint32 b) {
	dest = a b; return !a \|\| *dest / a == b; }
	static inline gboolean _GLIB_CHECKED_ADD_U64 (guint64 *dest, guint64 a, guint64 b) {
	dest = a + b; return dest >= a; }
	static inline gboolean _GLIB_CHECKED_MUL_U64 (guint64 *dest, guint64 a, guint64 b) {
	dest = a b; return !a \|\| *dest / a == b; }
	#endif

	/* 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 GLIB_DEPRECATED_TYPE_IN_2_62_FOR(GDateTime);

	struct _GTimeVal
	{
	glong tv_sec;
	glong tv_usec;
	} GLIB_DEPRECATED_TYPE_IN_2_62_FOR(GDateTime);

	typedef gint grefcount;
	typedef gint gatomicrefcount; /* should be accessed only using atomics */

	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 extern __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 _GLIB_EXTERN
	# endif /* !G_PLATFORM_WIN32 */
	#endif /* GLIB_VAR */

	#endif /* __G_TYPES_H__ */