| /* 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 gchar* gstring; |
| |
| typedef unsigned char guchar; |
| typedef unsigned short gushort; |
| typedef unsigned long gulong; |
| typedef unsigned int guint; |
| |
| typedef float gfloat; |
| typedef double gdouble; |
| |
| /* HAVE_LONG_DOUBLE doesn't work correctly on all platforms. |
| * Since gldouble isn't used anywhere, just disable it for now */ |
| |
| #if 0 |
| #ifdef HAVE_LONG_DOUBLE |
| typedef long double gldouble; |
| #else /* HAVE_LONG_DOUBLE */ |
| typedef double gldouble; |
| #endif /* HAVE_LONG_DOUBLE */ |
| #endif /* 0 */ |
| |
| typedef void* gpointer; |
| typedef const void *gconstpointer; |
| |
| typedef gint (*GCompareFunc) (gconstpointer a, |
| gconstpointer b); |
| typedef gint (*GCompareFuncData) (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); |
| |
| /* Define some mathematical constants that aren't available |
| * symbolically in some strict ISO C implementations. |
| */ |
| #define G_E 2.7182818284590452354E0 |
| #define G_LN2 6.9314718055994530942E-1 |
| #define G_LN10 2.3025850929940456840E0 |
| #define G_PI 3.14159265358979323846E0 |
| #define G_PI_2 1.57079632679489661923E0 |
| #define G_PI_4 0.78539816339744830962E0 |
| #define G_SQRT2 1.4142135623730950488E0 |
| |
| /* 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) (val) & (guint16) 0x00ffU) << 8) | \ |
| (((guint16) (val) & (guint16) 0xff00U) >> 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))) |
| |
| /* Intel specific stuff for speed |
| */ |
| #if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2 |
| # define GUINT16_SWAP_LE_BE_X86(val) \ |
| (__extension__ \ |
| ({ register guint16 __v; \ |
| if (__builtin_constant_p (val)) \ |
| __v = GUINT16_SWAP_LE_BE_CONSTANT (val); \ |
| else \ |
| __asm__ __const__ ("rorw $8, %w0" \ |
| : "=r" (__v) \ |
| : "0" ((guint16) (val))); \ |
| __v; })) |
| # define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_X86 (val)) |
| # if !defined(__i486__) && !defined(__i586__) \ |
| && !defined(__pentium__) && !defined(__i686__) && !defined(__pentiumpro__) |
| # define GUINT32_SWAP_LE_BE_X86(val) \ |
| (__extension__ \ |
| ({ register guint32 __v; \ |
| if (__builtin_constant_p (val)) \ |
| __v = GUINT32_SWAP_LE_BE_CONSTANT (val); \ |
| else \ |
| __asm__ __const__ ("rorw $8, %w0\n\t" \ |
| "rorl $16, %0\n\t" \ |
| "rorw $8, %w0" \ |
| : "=r" (__v) \ |
| : "0" ((guint32) (val))); \ |
| __v; })) |
| # else /* 486 and higher has bswap */ |
| # define GUINT32_SWAP_LE_BE_X86(val) \ |
| (__extension__ \ |
| ({ register guint32 __v; \ |
| if (__builtin_constant_p (val)) \ |
| __v = GUINT32_SWAP_LE_BE_CONSTANT (val); \ |
| else \ |
| __asm__ __const__ ("bswap %0" \ |
| : "=r" (__v) \ |
| : "0" ((guint32) (val))); \ |
| __v; })) |
| # endif /* processor specific 32-bit stuff */ |
| # define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86 (val)) |
| #else /* !__i386__ */ |
| # define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val)) |
| # define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val)) |
| #endif /* __i386__ */ |
| |
| #ifdef G_HAVE_GINT64 |
| # 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))) |
| # if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2 |
| # define GUINT64_SWAP_LE_BE_X86(val) \ |
| (__extension__ \ |
| ({ union { guint64 __ll; \ |
| guint32 __l[2]; } __r; \ |
| if (__builtin_constant_p (val)) \ |
| __r.__ll = GUINT64_SWAP_LE_BE_CONSTANT (val); \ |
| else \ |
| { \ |
| union { guint64 __ll; \ |
| guint32 __l[2]; } __w; \ |
| __w.__ll = ((guint64) val); \ |
| __r.__l[0] = GUINT32_SWAP_LE_BE (__w.__l[1]); \ |
| __r.__l[1] = GUINT32_SWAP_LE_BE (__w.__l[0]); \ |
| } \ |
| __r.__ll; })) |
| # define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86 (val)) |
| # else /* !__i386__ */ |
| # define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT(val)) |
| # endif |
| #endif |
| |
| #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)) |
| |
| #ifdef G_HAVE_GINT64 |
| #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)) |
| #endif |
| |
| #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 (nomal 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. |
| */ |
| #ifdef G_OS_WIN32 |
| # ifdef GLIB_COMPILATION |
| # define GLIB_VAR __declspec(dllexport) |
| # else /* !GLIB_COMPILATION */ |
| # define GLIB_VAR extern __declspec(dllimport) |
| # endif /* !GLIB_COMPILATION */ |
| #else /* !G_OS_WIN32 */ |
| # define GLIB_VAR extern |
| #endif /* !G_OS_WIN32 */ |
| |
| #endif /* __G_TYPES_H__ */ |
| |
