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/* 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/.
*/
/* 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__
#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
#error "Only <glib.h> can be included directly."
#endif
/* We include stddef.h to get the system's definition of NULL
*/
#include <stddef.h>
#ifdef __GNUC__
#define G_GNUC_CHECK_VERSION(major, minor) \
((__GNUC__ > (major)) || \
((__GNUC__ == (major)) && \
(__GNUC_MINOR__ >= (minor))))
#else
#define G_GNUC_CHECK_VERSION(major, minor) 0
#endif
/* 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
/* Every compiler that we target supports inlining, but some of them may
* complain about it if we don't say "__inline". If we have C99, or if
* we are using C++, then we can use "inline" directly. Unfortunately
* Visual Studio does not support __STDC_VERSION__, so we need to check
* whether we are on Visual Studio 2013 or earlier to see that we need to
* say "__inline" in C mode.
* Otherwise, we say "__inline" to avoid the warning.
*/
#define G_CAN_INLINE
#ifndef __cplusplus
# ifdef _MSC_VER
# if (_MSC_VER < 1900)
# define G_INLINE_DEFINE_NEEDED
# endif
# elif !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199900)
# define G_INLINE_DEFINE_NEEDED
# endif
#endif
#ifdef G_INLINE_DEFINE_NEEDED
# undef inline
# define inline __inline
#endif
#undef G_INLINE_DEFINE_NEEDED
/**
* G_INLINE_FUNC:
*
* This macro used to be used to conditionally define inline functions
* in a compatible way before this feature was supported in all
* compilers. These days, GLib requires inlining support from the
* compiler, so your GLib-using programs can safely assume that the
* "inline" keywork works properly.
*
* Never use this macro anymore. Just say "static inline".
*
* Deprecated: 2.48: Use "static inline" instead
*/
/* For historical reasons we need to continue to support those who
* define G_IMPLEMENT_INLINES to mean "don't implement this here".
*/
#ifdef G_IMPLEMENT_INLINES
# define G_INLINE_FUNC extern GLIB_DEPRECATED_MACRO_IN_2_48_FOR(static inline)
# undef G_CAN_INLINE
#else
# define G_INLINE_FUNC static inline GLIB_DEPRECATED_MACRO_IN_2_48_FOR(static inline)
#endif /* G_IMPLEMENT_INLINES */
/* Provide macros to feature the GCC function attribute.
*/
/**
* G_GNUC_PURE:
*
* Expands to the GNU C `pure` function attribute if the compiler is gcc.
* Declaring a function as `pure` enables better optimization of calls to
* the function. A `pure` function has no effects except its return value
* and the return value depends only on the parameters and/or global
* variables.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* gboolean g_type_check_value (const GValue *value) G_GNUC_PURE;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-pure-function-attribute) for more details.
*/
/**
* G_GNUC_MALLOC:
*
* Expands to the
* [GNU C `malloc` function attribute](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-functions-that-behave-like-malloc)
* if the compiler is gcc.
* Declaring a function as `malloc` enables better optimization of the function,
* but must only be done if the allocation behaviour of the function is fully
* understood, otherwise miscompilation can result.
*
* A function can have the `malloc` attribute if it returns a pointer which is
* guaranteed to not alias with any other pointer valid when the function
* returns, and moreover no pointers to valid objects occur in any storage
* addressed by the returned pointer.
*
* In practice, this means that `G_GNUC_MALLOC` can be used with any function
* which returns unallocated or zeroed-out memory, but not with functions which
* return initialised structures containing other pointers, or with functions
* that reallocate memory. This definition changed in GLib 2.58 to match the
* stricter definition introduced around GCC 5.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* gpointer g_malloc (gsize n_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1);
* ]|
*
* See the
* [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-functions-that-behave-like-malloc)
* for more details.
*
* Since: 2.6
*/
/**
* G_GNUC_NO_INLINE:
*
* Expands to the GNU C `noinline` function attribute if the compiler is gcc.
* If the compiler is not gcc, this macro expands to nothing.
*
* Declaring a function as `noinline` prevents the function from being
* considered for inlining.
*
* The attribute may be placed before the declaration or definition,
* right before the `static` keyword.
*
* |[<!-- language="C" -->
* G_GNUC_NO_INLINE
* static int
* do_not_inline_this (void)
* {
* ...
* }
* ]|
*
* See the
* [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-noinline-function-attribute)
* for more details.
*
* Since: 2.58
*/
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
#define G_GNUC_PURE __attribute__((__pure__))
#define G_GNUC_MALLOC __attribute__((__malloc__))
#define G_GNUC_NO_INLINE __attribute__((noinline))
#else
#define G_GNUC_PURE
#define G_GNUC_MALLOC
#define G_GNUC_NO_INLINE
#endif
/**
* G_GNUC_NULL_TERMINATED:
*
* Expands to the GNU C `sentinel` function attribute if the compiler is gcc.
* This function attribute only applies to variadic functions and instructs
* the compiler to check that the argument list is terminated with an
* explicit %NULL.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* gchar *g_strconcat (const gchar *string1,
* ...) G_GNUC_NULL_TERMINATED;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-sentinel-function-attribute) for more details.
*
* Since: 2.8
*/
#if __GNUC__ >= 4
#define G_GNUC_NULL_TERMINATED __attribute__((__sentinel__))
#else
#define G_GNUC_NULL_TERMINATED
#endif
/*
* We can only use __typeof__ on GCC >= 4.8, and not when compiling C++. Since
* __typeof__ is used in a few places in GLib, provide a pre-processor symbol
* to factor the check out from callers.
*
* This symbol is private.
*/
#undef g_has_typeof
#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) && !defined(__cplusplus)
#define g_has_typeof
#endif
/*
* Clang feature detection: http://clang.llvm.org/docs/LanguageExtensions.html
* These are not available on GCC, but since the pre-processor doesn't do
* operator short-circuiting, we can't use it in a statement or we'll get:
*
* error: missing binary operator before token "("
*
* So we define it to 0 to satisfy the pre-processor.
*/
#ifdef __has_attribute
#define g_macro__has_attribute __has_attribute
#else
#define g_macro__has_attribute(x) 0
#endif
#ifdef __has_feature
#define g_macro__has_feature __has_feature
#else
#define g_macro__has_feature(x) 0
#endif
#ifdef __has_builtin
#define g_macro__has_builtin __has_builtin
#else
#define g_macro__has_builtin(x) 0
#endif
/**
* G_GNUC_ALLOC_SIZE:
* @x: the index of the argument specifying the allocation size
*
* Expands to the GNU C `alloc_size` function attribute if the compiler
* is a new enough gcc. This attribute tells the compiler that the
* function returns a pointer to memory of a size that is specified
* by the @xth function parameter.
*
* Place the attribute after the function declaration, just before the
* semicolon.
*
* |[<!-- language="C" -->
* gpointer g_malloc (gsize n_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(1);
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alloc_005fsize-function-attribute) for more details.
*
* Since: 2.18
*/
/**
* G_GNUC_ALLOC_SIZE2:
* @x: the index of the argument specifying one factor of the allocation size
* @y: the index of the argument specifying the second factor of the allocation size
*
* Expands to the GNU C `alloc_size` function attribute if the compiler is a
* new enough gcc. This attribute tells the compiler that the function returns
* a pointer to memory of a size that is specified by the product of two
* function parameters.
*
* Place the attribute after the function declaration, just before the
* semicolon.
*
* |[<!-- language="C" -->
* gpointer g_malloc_n (gsize n_blocks,
* gsize n_block_bytes) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE2(1, 2);
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alloc_005fsize-function-attribute) for more details.
*
* Since: 2.18
*/
#if (!defined(__clang__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || \
(defined(__clang__) && g_macro__has_attribute(__alloc_size__))
#define G_GNUC_ALLOC_SIZE(x) __attribute__((__alloc_size__(x)))
#define G_GNUC_ALLOC_SIZE2(x,y) __attribute__((__alloc_size__(x,y)))
#else
#define G_GNUC_ALLOC_SIZE(x)
#define G_GNUC_ALLOC_SIZE2(x,y)
#endif
/**
* G_GNUC_PRINTF:
* @format_idx: the index of the argument corresponding to the
* format string (the arguments are numbered from 1)
* @arg_idx: the index of the first of the format arguments, or 0 if
* there are no format arguments
*
* Expands to the GNU C `format` function attribute if the compiler is gcc.
* This is used for declaring functions which take a variable number of
* arguments, with the same syntax as `printf()`. It allows the compiler
* to type-check the arguments passed to the function.
*
* Place the attribute after the function declaration, just before the
* semicolon.
*
* See the
* [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-Wformat-3288)
* for more details.
*
* |[<!-- language="C" -->
* gint g_snprintf (gchar *string,
* gulong n,
* gchar const *format,
* ...) G_GNUC_PRINTF (3, 4);
* ]|
*/
/**
* G_GNUC_SCANF:
* @format_idx: the index of the argument corresponding to
* the format string (the arguments are numbered from 1)
* @arg_idx: the index of the first of the format arguments, or 0 if
* there are no format arguments
*
* Expands to the GNU C `format` function attribute if the compiler is gcc.
* This is used for declaring functions which take a variable number of
* arguments, with the same syntax as `scanf()`. It allows the compiler
* to type-check the arguments passed to the function.
*
* |[<!-- language="C" -->
* int my_scanf (MyStream *stream,
* const char *format,
* ...) G_GNUC_SCANF (2, 3);
* int my_vscanf (MyStream *stream,
* const char *format,
* va_list ap) G_GNUC_SCANF (2, 0);
* ]|
*
* See the
* [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-Wformat-3288)
* for details.
*/
/**
* G_GNUC_STRFTIME:
* @format_idx: the index of the argument corresponding to
* the format string (the arguments are numbered from 1)
*
* Expands to the GNU C `strftime` format function attribute if the compiler
* is gcc. This is used for declaring functions which take a format argument
* which is passed to `strftime()` or an API implementing its formats. It allows
* the compiler check the format passed to the function.
*
* |[<!-- language="C" -->
* gsize my_strftime (MyBuffer *buffer,
* const char *format,
* const struct tm *tm) G_GNUC_STRFTIME (2);
* ]|
*
* See the
* [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-Wformat-3288)
* for details.
*
* Since: 2.60
*/
/**
* G_GNUC_FORMAT:
* @arg_idx: the index of the argument
*
* Expands to the GNU C `format_arg` function attribute if the compiler
* is gcc. This function attribute specifies that a function takes a
* format string for a `printf()`, `scanf()`, `strftime()` or `strfmon()` style
* function and modifies it, so that the result can be passed to a `printf()`,
* `scanf()`, `strftime()` or `strfmon()` style function (with the remaining
* arguments to the format function the same as they would have been
* for the unmodified string).
*
* Place the attribute after the function declaration, just before the
* semicolon.
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-Wformat-nonliteral-1) for more details.
*
* |[<!-- language="C" -->
* gchar *g_dgettext (gchar *domain_name, gchar *msgid) G_GNUC_FORMAT (2);
* ]|
*/
/**
* G_GNUC_NORETURN:
*
* Expands to the GNU C `noreturn` function attribute if the compiler is gcc.
* It is used for declaring functions which never return. It enables
* optimization of the function, and avoids possible compiler warnings.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* void g_abort (void) G_GNUC_NORETURN;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-noreturn-function-attribute) for more details.
*/
/**
* G_GNUC_CONST:
*
* Expands to the GNU C `const` function attribute if the compiler is gcc.
* Declaring a function as `const` enables better optimization of calls to
* the function. A `const` function doesn't examine any values except its
* parameters, and has no effects except its return value.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* gchar g_ascii_tolower (gchar c) G_GNUC_CONST;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-const-function-attribute) for more details.
*
* A function that has pointer arguments and examines the data pointed to
* must not be declared `const`. Likewise, a function that calls a non-`const`
* function usually must not be `const`. It doesn't make sense for a `const`
* function to return `void`.
*/
/**
* G_GNUC_UNUSED:
*
* Expands to the GNU C `unused` function attribute if the compiler is gcc.
* It is used for declaring functions and arguments which may never be used.
* It avoids possible compiler warnings.
*
* For functions, place the attribute after the declaration, just before the
* semicolon. For arguments, place the attribute at the beginning of the
* argument declaration.
*
* |[<!-- language="C" -->
* void my_unused_function (G_GNUC_UNUSED gint unused_argument,
* gint other_argument) G_GNUC_UNUSED;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-unused-function-attribute) for more details.
*/
/**
* G_GNUC_NO_INSTRUMENT:
*
* Expands to the GNU C `no_instrument_function` function attribute if the
* compiler is gcc. Functions with this attribute will not be instrumented
* for profiling, when the compiler is called with the
* `-finstrument-functions` option.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* int do_uninteresting_things (void) G_GNUC_NO_INSTRUMENT;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-no_005finstrument_005ffunction-function-attribute) for more details.
*/
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
#if !defined (__clang__) && G_GNUC_CHECK_VERSION (4, 4)
#define G_GNUC_PRINTF( format_idx, arg_idx ) \
__attribute__((__format__ (gnu_printf, format_idx, arg_idx)))
#define G_GNUC_SCANF( format_idx, arg_idx ) \
__attribute__((__format__ (gnu_scanf, format_idx, arg_idx)))
#define G_GNUC_STRFTIME( format_idx ) \
__attribute__((__format__ (gnu_strftime, format_idx, 0)))
#else
#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_STRFTIME( format_idx ) \
__attribute__((__format__ (__strftime__, format_idx, 0)))
#endif
#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_STRFTIME( format_idx )
#define G_GNUC_FORMAT( arg_idx )
/* NOTE: MSVC has __declspec(noreturn) but unlike GCC __attribute__,
* __declspec can only be placed at the start of the function prototype
* and not at the end, so we can't use it without breaking API.
*/
#define G_GNUC_NORETURN
#define G_GNUC_CONST
#define G_GNUC_UNUSED
#define G_GNUC_NO_INSTRUMENT
#endif /* !__GNUC__ */
/**
* G_GNUC_FALLTHROUGH:
*
* Expands to the GNU C `fallthrough` statement attribute if the compiler is gcc.
* This allows declaring case statement to explicitly fall through in switch
* statements. To enable this feature, use `-Wimplicit-fallthrough` during
* compilation.
*
* Put the attribute right before the case statement you want to fall through
* to.
*
* |[<!-- language="C" -->
* switch (foo)
* {
* case 1:
* g_message ("it's 1");
* G_GNUC_FALLTHROUGH;
* case 2:
* g_message ("it's either 1 or 2");
* break;
* }
* ]|
*
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Statement-Attributes.html#index-fallthrough-statement-attribute) for more details.
*
* Since: 2.60
*/
#if __GNUC__ > 6
#define G_GNUC_FALLTHROUGH __attribute__((fallthrough))
#else
#define G_GNUC_FALLTHROUGH
#endif /* __GNUC__ */
/**
* G_GNUC_DEPRECATED:
*
* Expands to the GNU C `deprecated` attribute if the compiler is gcc.
* It can be used to mark `typedef`s, variables and functions as deprecated.
* When called with the `-Wdeprecated-declarations` option,
* gcc will generate warnings when deprecated interfaces are used.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* int my_mistake (void) G_GNUC_DEPRECATED;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-deprecated-function-attribute) for more details.
*
* Since: 2.2
*/
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) || defined (__clang__)
#define G_GNUC_DEPRECATED __attribute__((__deprecated__))
#else
#define G_GNUC_DEPRECATED
#endif /* __GNUC__ */
/**
* G_GNUC_DEPRECATED_FOR:
* @f: the intended replacement for the deprecated symbol,
* such as the name of a function
*
* Like %G_GNUC_DEPRECATED, but names the intended replacement for the
* deprecated symbol if the version of gcc in use is new enough to support
* custom deprecation messages.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* int my_mistake (void) G_GNUC_DEPRECATED_FOR(my_replacement);
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-deprecated-function-attribute) for more details.
*
* Note that if @f is a macro, it will be expanded in the warning message.
* You can enclose it in quotes to prevent this. (The quotes will show up
* in the warning, but it's better than showing the macro expansion.)
*
* Since: 2.26
*/
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || defined (__clang__)
#define G_GNUC_DEPRECATED_FOR(f) \
__attribute__((deprecated("Use " #f " instead")))
#else
#define G_GNUC_DEPRECATED_FOR(f) G_GNUC_DEPRECATED
#endif /* __GNUC__ */
#ifdef __ICC
#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
_Pragma ("warning (push)") \
_Pragma ("warning (disable:1478)")
#define G_GNUC_END_IGNORE_DEPRECATIONS \
_Pragma ("warning (pop)")
#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
#define G_GNUC_END_IGNORE_DEPRECATIONS \
_Pragma ("GCC diagnostic pop")
#elif defined (_MSC_VER) && (_MSC_VER >= 1500) && !defined (__clang__)
#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
__pragma (warning (push)) \
__pragma (warning (disable : 4996))
#define G_GNUC_END_IGNORE_DEPRECATIONS \
__pragma (warning (pop))
#elif defined (__clang__)
#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
#define G_GNUC_END_IGNORE_DEPRECATIONS \
_Pragma("clang diagnostic pop")
#else
#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS
#define G_GNUC_END_IGNORE_DEPRECATIONS
#endif
/**
* G_GNUC_MAY_ALIAS:
*
* Expands to the GNU C `may_alias` type attribute if the compiler is gcc.
* Types with this attribute will not be subjected to type-based alias
* analysis, but are assumed to alias with any other type, just like `char`.
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html#index-may_005falias-type-attribute) for details.
*
* Since: 2.14
*/
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
#define G_GNUC_MAY_ALIAS __attribute__((may_alias))
#else
#define G_GNUC_MAY_ALIAS
#endif
/**
* G_GNUC_WARN_UNUSED_RESULT:
*
* Expands to the GNU C `warn_unused_result` function attribute if the compiler
* is gcc. This function attribute makes the compiler emit a warning if the
* result of a function call is ignored.
*
* Place the attribute after the declaration, just before the semicolon.
*
* |[<!-- language="C" -->
* GList *g_list_append (GList *list,
* gpointer data) G_GNUC_WARN_UNUSED_RESULT;
* ]|
*
* See the [GNU C documentation](https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-warn_005funused_005fresult-function-attribute) for more details.
*
* Since: 2.10
*/
#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__ */
/**
* G_GNUC_FUNCTION:
*
* Expands to "" on all modern compilers, and to __FUNCTION__ on gcc
* version 2.x. Don't use it.
*
* Deprecated: 2.16: Use G_STRFUNC() instead
*/
/**
* G_GNUC_PRETTY_FUNCTION:
*
* Expands to "" on all modern compilers, and to __PRETTY_FUNCTION__
* on gcc version 2.x. Don't use it.
*
* Deprecated: 2.16: Use G_STRFUNC() instead
*/
/* 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
*
* Mark them as deprecated since 2.26, since that’s when version macros were
* introduced.
*/
#if defined (__GNUC__) && (__GNUC__ < 3)
#define G_GNUC_FUNCTION __FUNCTION__ GLIB_DEPRECATED_MACRO_IN_2_26_FOR(G_STRFUNC)
#define G_GNUC_PRETTY_FUNCTION __PRETTY_FUNCTION__ GLIB_DEPRECATED_MACRO_IN_2_26_FOR(G_STRFUNC)
#else /* !__GNUC__ */
#define G_GNUC_FUNCTION "" GLIB_DEPRECATED_MACRO_IN_2_26_FOR(G_STRFUNC)
#define G_GNUC_PRETTY_FUNCTION "" GLIB_DEPRECATED_MACRO_IN_2_26_FOR(G_STRFUNC)
#endif /* !__GNUC__ */
#if g_macro__has_feature(attribute_analyzer_noreturn) && defined(__clang_analyzer__)
#define G_ANALYZER_ANALYZING 1
#define G_ANALYZER_NORETURN __attribute__((analyzer_noreturn))
#else
#define G_ANALYZER_ANALYZING 0
#define G_ANALYZER_NORETURN
#endif
#define G_STRINGIFY(macro_or_string) G_STRINGIFY_ARG (macro_or_string)
#define G_STRINGIFY_ARG(contents) #contents
#ifndef __GI_SCANNER__ /* The static assert macro really confuses the introspection parser */
#define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2
#define G_PASTE(identifier1,identifier2) G_PASTE_ARGS (identifier1, identifier2)
#if !defined(__cplusplus) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
#define G_STATIC_ASSERT(expr) _Static_assert (expr, "Expression evaluates to false")
#elif (defined(__cplusplus) && __cplusplus >= 201103L) || \
(defined(__cplusplus) && defined (_MSC_VER) && (_MSC_VER >= 1600)) || \
(defined (_MSC_VER) && (_MSC_VER >= 1800))
#define G_STATIC_ASSERT(expr) static_assert (expr, "Expression evaluates to false")
#else
#ifdef __COUNTER__
#define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED
#else
#define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __LINE__)[(expr) ? 1 : -1] G_GNUC_UNUSED
#endif
#endif /* __STDC_VERSION__ */
#define G_STATIC_ASSERT_EXPR(expr) ((void) sizeof (char[(expr) ? 1 : -1]))
#endif /* !__GI_SCANNER__ */
/* 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__) && defined (__cplusplus)
#define G_STRFUNC ((const char*) (__PRETTY_FUNCTION__))
#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#define G_STRFUNC ((const char*) (__func__))
#elif defined (__GNUC__) || (defined(_MSC_VER) && (_MSC_VER > 1300))
#define G_STRFUNC ((const char*) (__FUNCTION__))
#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)))
#define G_APPROX_VALUE(a, b, epsilon) \
(((a) > (b) ? (a) - (b) : (b) - (a)) < (epsilon))
/* 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.
*/
#if (defined(__GNUC__) && __GNUC__ >= 4) || defined (_MSC_VER)
#define G_STRUCT_OFFSET(struct_type, member) \
((glong) offsetof (struct_type, member))
#else
#define G_STRUCT_OFFSET(struct_type, member) \
((glong) ((guint8*) &((struct_type*) 0)->member))
#endif
#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:
* G_STMT_START { statements; } G_STMT_END;
* This can be used as a single statement, like:
* if (x) G_STMT_START { ... } G_STMT_END; else ...
* This intentionally does not use compiler extensions like GCC's '({...})' to
* avoid portability issue or side effects when compiled with different compilers.
* MSVC complains about "while(0)": C4127: "Conditional expression is constant",
* so we use __pragma to avoid the warning since the use here is intentional.
*/
#if !(defined (G_STMT_START) && defined (G_STMT_END))
#define G_STMT_START do
#if defined (_MSC_VER) && (_MSC_VER >= 1500)
#define G_STMT_END \
__pragma(warning(push)) \
__pragma(warning(disable:4127)) \
while(0) \
__pragma(warning(pop))
#else
#define G_STMT_END while (0)
#endif
#endif
/* Provide G_ALIGNOF alignment macro.
*
* Note we cannot use the gcc __alignof__ operator here, as that returns the
* preferred alignment rather than the minimal alignment. See
* https://gitlab.gnome.org/GNOME/glib/merge_requests/538/diffs#note_390790.
*/
/**
* G_ALIGNOF
* @type: a type-name
*
* Return the minimal alignment required by the platform ABI for values of the given
* type. The address of a variable or struct member of the given type must always be
* a multiple of this alignment. For example, most platforms require int variables
* to be aligned at a 4-byte boundary, so `G_ALIGNOF (int)` is 4 on most platforms.
*
* Note this is not necessarily the same as the value returned by GCC’s
* `__alignof__` operator, which returns the preferred alignment for a type.
* The preferred alignment may be a stricter alignment than the minimal
* alignment.
*
* Since: 2.60
*/
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__cplusplus)
#define G_ALIGNOF(type) _Alignof (type)
#else
#define G_ALIGNOF(type) (G_STRUCT_OFFSET (struct { char a; type b; }, b))
#endif
/**
* G_CONST_RETURN:
*
* If %G_DISABLE_CONST_RETURNS is defined, this macro expands
* to nothing. By default, the macro expands to const. The macro
* can be used in place of const for functions that return a value
* that should not be modified. The purpose of this macro is to allow
* us to turn on const for returned constant strings by default, while
* allowing programmers who find that annoying to turn it off. This macro
* should only be used for return values and for "out" parameters, it
* doesn't make sense for "in" parameters.
*
* Deprecated: 2.30: API providers should replace all existing uses with
* const and API consumers should adjust their code accordingly
*/
#ifdef G_DISABLE_CONST_RETURNS
#define G_CONST_RETURN GLIB_DEPRECATED_MACRO_IN_2_30_FOR(const)
#else
#define G_CONST_RETURN const GLIB_DEPRECATED_MACRO_IN_2_30_FOR(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) \
G_GNUC_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
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) || defined (__clang__)
#define G_DEPRECATED __attribute__((__deprecated__))
#elif defined(_MSC_VER) && (_MSC_VER >= 1300)
#define G_DEPRECATED __declspec(deprecated)
#else
#define G_DEPRECATED
#endif
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || defined (__clang__)
#define G_DEPRECATED_FOR(f) __attribute__((__deprecated__("Use '" #f "' instead")))
#elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
#define G_DEPRECATED_FOR(f) __declspec(deprecated("is deprecated. Use '" #f "' instead"))
#else
#define G_DEPRECATED_FOR(f) G_DEPRECATED
#endif
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || defined (__clang__)
#define G_UNAVAILABLE(maj,min) __attribute__((deprecated("Not available before " #maj "." #min)))
#elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
#define G_UNAVAILABLE(maj,min) __declspec(deprecated("is not available before " #maj "." #min))
#else
#define G_UNAVAILABLE(maj,min) G_DEPRECATED
#endif
#ifndef _GLIB_EXTERN
#define _GLIB_EXTERN extern
#endif
/* These macros are used to mark deprecated symbols in GLib headers,
* and thus have to be exposed in installed headers. But please
* do *not* use them in other projects. Instead, use G_DEPRECATED
* or define your own wrappers around it.
*/
#ifdef GLIB_DISABLE_DEPRECATION_WARNINGS
#define GLIB_DEPRECATED _GLIB_EXTERN
#define GLIB_DEPRECATED_FOR(f) _GLIB_EXTERN
#define GLIB_UNAVAILABLE(maj,min) _GLIB_EXTERN
#else
#define GLIB_DEPRECATED G_DEPRECATED _GLIB_EXTERN
#define GLIB_DEPRECATED_FOR(f) G_DEPRECATED_FOR(f) _GLIB_EXTERN
#define GLIB_UNAVAILABLE(maj,min) G_UNAVAILABLE(maj,min) _GLIB_EXTERN
#endif
#if !defined(GLIB_DISABLE_DEPRECATION_WARNINGS) && \
(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || \
__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 4))
#define _GLIB_GNUC_DO_PRAGMA(x) _Pragma(G_STRINGIFY (x))
#define GLIB_DEPRECATED_MACRO _GLIB_GNUC_DO_PRAGMA(GCC warning "Deprecated pre-processor symbol")
#define GLIB_DEPRECATED_MACRO_FOR(f) _GLIB_GNUC_DO_PRAGMA(GCC warning "Deprecated pre-processor symbol, replace with " #f)
#define GLIB_UNAVAILABLE_MACRO(maj,min) _GLIB_GNUC_DO_PRAGMA(GCC warning "Not available before " #maj "." #min)
#else
#define GLIB_DEPRECATED_MACRO
#define GLIB_DEPRECATED_MACRO_FOR(f)
#define GLIB_UNAVAILABLE_MACRO(maj,min)
#endif
#if !defined(GLIB_DISABLE_DEPRECATION_WARNINGS) && \
((defined (__GNUC__) && (__GNUC__ > 6 || (__GNUC__ == 6 && __GNUC_MINOR__ >= 1))) || \
(defined (__clang_major__) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 0))))
#define GLIB_DEPRECATED_ENUMERATOR G_DEPRECATED
#define GLIB_DEPRECATED_ENUMERATOR_FOR(f) G_DEPRECATED_FOR(f)
#define GLIB_UNAVAILABLE_ENUMERATOR(maj,min) G_UNAVAILABLE(maj,min)
#else
#define GLIB_DEPRECATED_ENUMERATOR
#define GLIB_DEPRECATED_ENUMERATOR_FOR(f)
#define GLIB_UNAVAILABLE_ENUMERATOR(maj,min)
#endif
#if !defined(GLIB_DISABLE_DEPRECATION_WARNINGS) && \
((defined (__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))) || \
(defined (__clang_major__) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 0))))
#define GLIB_DEPRECATED_TYPE G_DEPRECATED
#define GLIB_DEPRECATED_TYPE_FOR(f) G_DEPRECATED_FOR(f)
#define GLIB_UNAVAILABLE_TYPE(maj,min) G_UNAVAILABLE(maj,min)
#else
#define GLIB_DEPRECATED_TYPE
#define GLIB_DEPRECATED_TYPE_FOR(f)
#define GLIB_UNAVAILABLE_TYPE(maj,min)
#endif
#ifndef __GI_SCANNER__
#if defined (__GNUC__) || defined (__clang__)
/* these macros are private */
#define _GLIB_AUTOPTR_FUNC_NAME(TypeName) glib_autoptr_cleanup_##TypeName
#define _GLIB_AUTOPTR_CLEAR_FUNC_NAME(TypeName) glib_autoptr_clear_##TypeName
#define _GLIB_AUTOPTR_TYPENAME(TypeName) TypeName##_autoptr
#define _GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName) glib_listautoptr_cleanup_##TypeName
#define _GLIB_AUTOPTR_LIST_TYPENAME(TypeName) TypeName##_listautoptr
#define _GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName) glib_slistautoptr_cleanup_##TypeName
#define _GLIB_AUTOPTR_SLIST_TYPENAME(TypeName) TypeName##_slistautoptr
#define _GLIB_AUTOPTR_QUEUE_FUNC_NAME(TypeName) glib_queueautoptr_cleanup_##TypeName
#define _GLIB_AUTOPTR_QUEUE_TYPENAME(TypeName) TypeName##_queueautoptr
#define _GLIB_AUTO_FUNC_NAME(TypeName) glib_auto_cleanup_##TypeName
#define _GLIB_CLEANUP(func) __attribute__((cleanup(func)))
#define _GLIB_DEFINE_AUTOPTR_CLEANUP_FUNCS(TypeName, ParentName, cleanup) \
typedef TypeName *_GLIB_AUTOPTR_TYPENAME(TypeName); \
typedef GList *_GLIB_AUTOPTR_LIST_TYPENAME(TypeName); \
typedef GSList *_GLIB_AUTOPTR_SLIST_TYPENAME(TypeName); \
typedef GQueue *_GLIB_AUTOPTR_QUEUE_TYPENAME(TypeName); \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_CLEAR_FUNC_NAME(TypeName) (TypeName *_ptr) \
{ if (_ptr) (cleanup) ((ParentName *) _ptr); } \
static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_FUNC_NAME(TypeName) (TypeName **_ptr) \
{ _GLIB_AUTOPTR_CLEAR_FUNC_NAME(TypeName) (*_ptr); } \
static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName) (GList **_l) \
{ g_list_free_full (*_l, (GDestroyNotify) (void(*)(void)) cleanup); } \
static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName) (GSList **_l) \
{ g_slist_free_full (*_l, (GDestroyNotify) (void(*)(void)) cleanup); } \
static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_QUEUE_FUNC_NAME(TypeName) (GQueue **_q) \
{ if (*_q) g_queue_free_full (*_q, (GDestroyNotify) (void(*)(void)) cleanup); } \
G_GNUC_END_IGNORE_DEPRECATIONS
#define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName) \
_GLIB_DEFINE_AUTOPTR_CLEANUP_FUNCS(ModuleObjName, ParentName, _GLIB_AUTOPTR_CLEAR_FUNC_NAME(ParentName))
/* these macros are API */
#define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func) \
_GLIB_DEFINE_AUTOPTR_CLEANUP_FUNCS(TypeName, TypeName, func)
#define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func) \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
static G_GNUC_UNUSED inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { (func) (_ptr); } \
G_GNUC_END_IGNORE_DEPRECATIONS
#define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none) \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
static G_GNUC_UNUSED inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { if (*_ptr != none) (func) (*_ptr); } \
G_GNUC_END_IGNORE_DEPRECATIONS
#define g_autoptr(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_TYPENAME(TypeName)
#define g_autolist(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_LIST_TYPENAME(TypeName)
#define g_autoslist(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_SLIST_TYPENAME(TypeName)
#define g_autoqueue(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_QUEUE_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_QUEUE_TYPENAME(TypeName)
#define g_auto(TypeName) _GLIB_CLEANUP(_GLIB_AUTO_FUNC_NAME(TypeName)) TypeName
#define g_autofree _GLIB_CLEANUP(g_autoptr_cleanup_generic_gfree)
#else /* not GNU C */
/* this (dummy) macro is private */
#define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName)
/* these (dummy) macros are API */
#define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func)
#define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func)
#define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none)
/* no declaration of g_auto() or g_autoptr() here */
#endif /* __GNUC__ */
#else
#define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName)
#define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func)
#define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func)
#define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none)
#endif /* __GI_SCANNER__ */
/**
* G_SIZEOF_MEMBER:
* @struct_type: a structure type, e.g. #GOutputVector
* @member: a field in the structure, e.g. `size`
*
* Returns the size of @member in the struct definition without having a
* declared instance of @struct_type.
*
* Returns: the size of @member in bytes.
*
* Since: 2.64
*/
#define G_SIZEOF_MEMBER(struct_type, member) \
GLIB_AVAILABLE_MACRO_IN_2_64 \
sizeof (((struct_type *) 0)->member)
#endif /* __G_MACROS_H__ */
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