diff -r 000000000000 -r e4d67989cc36 ossrv_pub/glib_standard_macros/inc/stdapis/glib-2.0/glib/gmacros.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ossrv_pub/glib_standard_macros/inc/stdapis/glib-2.0/glib/gmacros.h Tue Feb 02 02:01:42 2010 +0200 @@ -0,0 +1,261 @@ +/* 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/. + */ + +/* This file must not include any other glib header file and must thus + * not refer to variables from glibconfig.h + */ + +#ifndef __G_MACROS_H__ +#define __G_MACROS_H__ + +/* We include stddef.h to get the system's definition of NULL + */ +#include + +/* Here we provide G_GNUC_EXTENSION as an alias for __extension__, + * where this is valid. This allows for warningless compilation of + * "long long" types even in the presence of '-ansi -pedantic'. + */ +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8) +# define G_GNUC_EXTENSION __extension__ +#else +# define G_GNUC_EXTENSION +#endif + +/* Provide macros to feature the GCC function attribute. + */ +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) +#define G_GNUC_PURE \ + __attribute__((__pure__)) +#define G_GNUC_MALLOC \ + __attribute__((__malloc__)) +#else +#define G_GNUC_PURE +#define G_GNUC_MALLOC +#endif + +#if __GNUC__ >= 4 +#define G_GNUC_NULL_TERMINATED __attribute__((__sentinel__)) +#else +#define G_GNUC_NULL_TERMINATED +#endif + +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) +#define G_GNUC_PRINTF( format_idx, arg_idx ) \ + __attribute__((__format__ (__printf__, format_idx, arg_idx))) +#define G_GNUC_SCANF( format_idx, arg_idx ) \ + __attribute__((__format__ (__scanf__, format_idx, arg_idx))) +#define G_GNUC_FORMAT( arg_idx ) \ + __attribute__((__format_arg__ (arg_idx))) +#define G_GNUC_NORETURN \ + __attribute__((__noreturn__)) +#define G_GNUC_CONST \ + __attribute__((__const__)) +#define G_GNUC_UNUSED \ + __attribute__((__unused__)) +#define G_GNUC_NO_INSTRUMENT \ + __attribute__((__no_instrument_function__)) +#else /* !__GNUC__ */ +#define G_GNUC_PRINTF( format_idx, arg_idx ) +#define G_GNUC_SCANF( format_idx, arg_idx ) +#define G_GNUC_FORMAT( arg_idx ) +#define G_GNUC_NORETURN +#define G_GNUC_CONST +#define G_GNUC_UNUSED +#define G_GNUC_NO_INSTRUMENT +#endif /* !__GNUC__ */ + +#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) +#define G_GNUC_DEPRECATED \ + __attribute__((__deprecated__)) +#else +#define G_GNUC_DEPRECATED +#endif /* __GNUC__ */ + +#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) +#define G_GNUC_WARN_UNUSED_RESULT \ + __attribute__((warn_unused_result)) +#else +#define G_GNUC_WARN_UNUSED_RESULT +#endif /* __GNUC__ */ + +/* Wrap the gcc __PRETTY_FUNCTION__ and __FUNCTION__ variables with + * macros, so we can refer to them as strings unconditionally. + * usage not-recommended since gcc-3.0 + */ +#if defined (__GNUC__) && (__GNUC__ < 3) +#define G_GNUC_FUNCTION __FUNCTION__ +#define G_GNUC_PRETTY_FUNCTION __PRETTY_FUNCTION__ +#else /* !__GNUC__ */ +#define G_GNUC_FUNCTION "" +#define G_GNUC_PRETTY_FUNCTION "" +#endif /* !__GNUC__ */ + +#define G_STRINGIFY(macro_or_string) G_STRINGIFY_ARG (macro_or_string) +#define G_STRINGIFY_ARG(contents) #contents + +/* Provide a string identifying the current code position */ +#if defined(__GNUC__) && (__GNUC__ < 3) && !defined(__cplusplus) +# define G_STRLOC __FILE__ ":" G_STRINGIFY (__LINE__) ":" __PRETTY_FUNCTION__ "()" +#else +# define G_STRLOC __FILE__ ":" G_STRINGIFY (__LINE__) +#endif + +/* Provide a string identifying the current function, non-concatenatable */ +#if defined (__GNUC__) +# define G_STRFUNC ((const char*) (__PRETTY_FUNCTION__)) +#elif defined (G_HAVE_ISO_VARARGS) +# define G_STRFUNC ((const char*) (__func__)) +#else +# define G_STRFUNC ((const char*) ("???")) +#endif + +/* Guard C code in headers, while including them from C++ */ +#ifdef __cplusplus +# define G_BEGIN_DECLS extern "C" { +# define G_END_DECLS } +#else +# define G_BEGIN_DECLS +# define G_END_DECLS +#endif + +/* Provide definitions for some commonly used macros. + * Some of them are only provided if they haven't already + * been defined. It is assumed that if they are already + * defined then the current definition is correct. + */ +#ifndef NULL +# ifdef __cplusplus +# define NULL (0L) +# else /* !__cplusplus */ +# define NULL ((void*) 0) +# endif /* !__cplusplus */ +#endif + +#ifndef FALSE +#define FALSE (0) +#endif + +#ifndef TRUE +#define TRUE (!FALSE) +#endif + +#undef MAX +#define MAX(a, b) (((a) > (b)) ? (a) : (b)) + +#undef MIN +#define MIN(a, b) (((a) < (b)) ? (a) : (b)) + +#undef ABS +#define ABS(a) (((a) < 0) ? -(a) : (a)) + +#undef CLAMP +#define CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x))) + +/* Count the number of elements in an array. The array must be defined + * as such; using this with a dynamically allocated array will give + * incorrect results. + */ +#define G_N_ELEMENTS(arr) (sizeof (arr) / sizeof ((arr)[0])) + +/* Macros by analogy to GINT_TO_POINTER, GPOINTER_TO_INT + */ +#define GPOINTER_TO_SIZE(p) ((gsize) (p)) +#define GSIZE_TO_POINTER(s) ((gpointer) (gsize) (s)) + +/* Provide convenience macros for handling structure + * fields through their offsets. + */ +#define G_STRUCT_OFFSET(struct_type, member) \ + ((glong) ((guint8*) &((struct_type*) 0)->member)) +#define G_STRUCT_MEMBER_P(struct_p, struct_offset) \ + ((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset))) +#define G_STRUCT_MEMBER(member_type, struct_p, struct_offset) \ + (*(member_type*) G_STRUCT_MEMBER_P ((struct_p), (struct_offset))) + +/* Provide simple macro statement wrappers (adapted from Perl): + * G_STMT_START { statements; } G_STMT_END; + * can be used as a single statement, as in + * if (x) G_STMT_START { ... } G_STMT_END; else ... + * + * When GCC is compiling C code in non-ANSI mode, it will use the + * compiler __extension__ to wrap the statements wihin `({' and '})' braces. + * When compiling on platforms where configure has defined + * HAVE_DOWHILE_MACROS, statements will be wrapped with `do' and `while (0)'. + * For any other platforms (SunOS4 is known to have this issue), wrap the + * statements with `if (1)' and `else (void) 0'. + */ +#if !(defined (G_STMT_START) && defined (G_STMT_END)) +# if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus) +# define G_STMT_START (void) __extension__ ( +# define G_STMT_END ) +# else /* !(__GNUC__ && !__STRICT_ANSI__ && !__cplusplus) */ +# if defined (HAVE_DOWHILE_MACROS) +# define G_STMT_START do +# define G_STMT_END while (0) +# else /* !HAVE_DOWHILE_MACROS */ +# define G_STMT_START if (1) +# define G_STMT_END else (void) 0 +# endif /* !HAVE_DOWHILE_MACROS */ +# endif /* !(__GNUC__ && !__STRICT_ANSI__ && !__cplusplus) */ +#endif + +/* Allow the app programmer to select whether or not return values + * (usually char*) are const or not. Don't try using this feature for + * functions with C++ linkage. + */ +#ifdef G_DISABLE_CONST_RETURNS +#define G_CONST_RETURN +#else +#define G_CONST_RETURN const +#endif + +/* + * The G_LIKELY and G_UNLIKELY macros let the programmer give hints to + * the compiler about the expected result of an expression. Some compilers + * can use this information for optimizations. + * + * The _G_BOOLEAN_EXPR macro is intended to trigger a gcc warning when + * putting assignments in g_return_if_fail (). + */ +#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__) +#define _G_BOOLEAN_EXPR(expr) \ + __extension__ ({ \ + int _g_boolean_var_; \ + if (expr) \ + _g_boolean_var_ = 1; \ + else \ + _g_boolean_var_ = 0; \ + _g_boolean_var_; \ +}) +#define G_LIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR(expr), 1)) +#define G_UNLIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR(expr), 0)) +#else +#define G_LIKELY(expr) (expr) +#define G_UNLIKELY(expr) (expr) +#endif + +#endif /* __G_MACROS_H__ */