glib/gmacros.h

   1 /* GLIB - Library of useful routines for C programming
   2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
  20  * file for a list of people on the GLib Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 /* This file must not include any other glib header file and must thus
  26  * not refer to variables from glibconfig.h
  27  */
  28
  29 #ifndef __G_MACROS_H__
  30 #define __G_MACROS_H__
  31
  32 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  33 #error "Only <glib.h> can be included directly."
  34 #endif
  35
  36 /* We include stddef.h to get the system's definition of NULL
  37  */
  38 #include <stddef.h>
  39
  40 #ifdef __GNUC__
  41 #define G_GNUC_CHECK_VERSION(major, minor) \
  42     ((__GNUC__ > (major)) || \
  43      ((__GNUC__ == (major)) && \
  44       (__GNUC_MINOR__ >= (minor))))
  45 #else
  46 #define G_GNUC_CHECK_VERSION(major, minor) 0
  47 #endif
  48
  49 /* Here we provide G_GNUC_EXTENSION as an alias for __extension__,
  50  * where this is valid. This allows for warningless compilation of
  51  * "long long" types even in the presence of '-ansi -pedantic'.
  52  */
  53 #if     __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)
  54 #define G_GNUC_EXTENSION __extension__
  55 #else
  56 #define G_GNUC_EXTENSION
  57 #endif
  58
  59 /* Every compiler that we target supports inlining, but some of them may
  60  * complain about it if we don't say "__inline".  If we have C99, or if
  61  * we are using C++, then we can use "inline" directly.  Unfortunately
  62  * Visual Studio does not support __STDC_VERSION__, so we need to check
  63  * whether we are on Visual Studio 2013 or earlier to see that we need to
  64  * say "__inline" in C mode.
  65  * Otherwise, we say "__inline" to avoid the warning.
  66  */
  67 #define G_CAN_INLINE
  68 #ifndef __cplusplus
  69 # ifdef _MSC_VER
  70 #  if (_MSC_VER < 1900)
  71 #   define G_INLINE_DEFINE_NEEDED
  72 #  endif
  73 # elif !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199900)
  74 #  define G_INLINE_DEFINE_NEEDED
  75 # endif
  76 #endif
  77
  78 #ifdef G_INLINE_DEFINE_NEEDED
  79 # undef inline
  80 # define inline __inline
  81 #endif
  82
  83 #undef G_INLINE_DEFINE_NEEDED
  84
  85 /* For historical reasons we need to continue to support those who
  86  * define G_IMPLEMENT_INLINES to mean "don't implement this here".
  87  */
  88 #ifdef G_IMPLEMENT_INLINES
  89 #  define G_INLINE_FUNC extern
  90 #  undef  G_CAN_INLINE
  91 #else
  92 #  define G_INLINE_FUNC static inline
  93 #endif /* G_IMPLEMENT_INLINES */
  94
  95 /* Provide macros to feature the GCC function attribute.
  96  */
  97 #if    __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
  98 #define G_GNUC_PURE __attribute__((__pure__))
  99 #define G_GNUC_MALLOC __attribute__((__malloc__))
 100 #else
 101 #define G_GNUC_PURE
 102 #define G_GNUC_MALLOC
 103 #endif
 104
 105 #if     __GNUC__ >= 4
 106 #define G_GNUC_NULL_TERMINATED __attribute__((__sentinel__))
 107 #else
 108 #define G_GNUC_NULL_TERMINATED
 109 #endif
 110
 111 /* Clang feature detection: http://clang.llvm.org/docs/LanguageExtensions.html */
 112 #ifndef __has_attribute
 113 #define __has_attribute(x) 0
 114 #endif
 115
 116 #ifndef __has_feature
 117 #define __has_feature(x) 0
 118 #endif
 119
 120 #ifndef __has_builtin
 121 #define __has_builtin(x) 0
 122 #endif
 123
 124 #if     (!defined(__clang__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || \
 125         (defined(__clang__) && __has_attribute(__alloc_size__))
 126 #define G_GNUC_ALLOC_SIZE(x) __attribute__((__alloc_size__(x)))
 127 #define G_GNUC_ALLOC_SIZE2(x,y) __attribute__((__alloc_size__(x,y)))
 128 #else
 129 #define G_GNUC_ALLOC_SIZE(x)
 130 #define G_GNUC_ALLOC_SIZE2(x,y)
 131 #endif
 132
 133 #if     __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
 134 #define G_GNUC_PRINTF( format_idx, arg_idx )    \
 135   __attribute__((__format__ (__printf__, format_idx, arg_idx)))
 136 #define G_GNUC_SCANF( format_idx, arg_idx )     \
 137   __attribute__((__format__ (__scanf__, format_idx, arg_idx)))
 138 #define G_GNUC_FORMAT( arg_idx )                \
 139   __attribute__((__format_arg__ (arg_idx)))
 140 #define G_GNUC_NORETURN                         \
 141   __attribute__((__noreturn__))
 142 #define G_GNUC_CONST                            \
 143   __attribute__((__const__))
 144 #define G_GNUC_UNUSED                           \
 145   __attribute__((__unused__))
 146 #define G_GNUC_NO_INSTRUMENT                    \
 147   __attribute__((__no_instrument_function__))
 148 #else   /* !__GNUC__ */
 149 #define G_GNUC_PRINTF( format_idx, arg_idx )
 150 #define G_GNUC_SCANF( format_idx, arg_idx )
 151 #define G_GNUC_FORMAT( arg_idx )
 152 #define G_GNUC_NORETURN
 153 #define G_GNUC_CONST
 154 #define G_GNUC_UNUSED
 155 #define G_GNUC_NO_INSTRUMENT
 156 #endif  /* !__GNUC__ */
 157
 158 #if    __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
 159 #define G_GNUC_DEPRECATED __attribute__((__deprecated__))
 160 #else
 161 #define G_GNUC_DEPRECATED
 162 #endif /* __GNUC__ */
 163
 164 #if    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 165 #define G_GNUC_DEPRECATED_FOR(f)                        \
 166   __attribute__((deprecated("Use " #f " instead")))
 167 #else
 168 #define G_GNUC_DEPRECATED_FOR(f)        G_GNUC_DEPRECATED
 169 #endif /* __GNUC__ */
 170
 171 #ifdef __ICC
 172 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS                \
 173   _Pragma ("warning (push)")                            \
 174   _Pragma ("warning (disable:1478)")
 175 #define G_GNUC_END_IGNORE_DEPRECATIONS                  \
 176   _Pragma ("warning (pop)")
 177 #elif    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
 178 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS                \
 179   _Pragma ("GCC diagnostic push")                       \
 180   _Pragma ("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
 181 #define G_GNUC_END_IGNORE_DEPRECATIONS                  \
 182   _Pragma ("GCC diagnostic pop")
 183 #elif defined (_MSC_VER) && (_MSC_VER >= 1500)
 184 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS                \
 185   __pragma (warning (push))  \
 186   __pragma (warning (disable : 4996))
 187 #define G_GNUC_END_IGNORE_DEPRECATIONS                  \
 188   __pragma (warning (pop))
 189 #elif defined (__clang__)
 190 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
 191   _Pragma("clang diagnostic push") \
 192   _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
 193 #define G_GNUC_END_IGNORE_DEPRECATIONS \
 194   _Pragma("clang diagnostic pop")
 195 #else
 196 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS
 197 #define G_GNUC_END_IGNORE_DEPRECATIONS
 198 #endif
 199
 200 #if     __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
 201 #define G_GNUC_MAY_ALIAS __attribute__((may_alias))
 202 #else
 203 #define G_GNUC_MAY_ALIAS
 204 #endif
 205
 206 #if    __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 207 #define G_GNUC_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
 208 #else
 209 #define G_GNUC_WARN_UNUSED_RESULT
 210 #endif /* __GNUC__ */
 211
 212 #ifndef G_DISABLE_DEPRECATED
 213 /* Wrap the gcc __PRETTY_FUNCTION__ and __FUNCTION__ variables with
 214  * macros, so we can refer to them as strings unconditionally.
 215  * usage not-recommended since gcc-3.0
 216  */
 217 #if defined (__GNUC__) && (__GNUC__ < 3)
 218 #define G_GNUC_FUNCTION         __FUNCTION__
 219 #define G_GNUC_PRETTY_FUNCTION  __PRETTY_FUNCTION__
 220 #else   /* !__GNUC__ */
 221 #define G_GNUC_FUNCTION         ""
 222 #define G_GNUC_PRETTY_FUNCTION  ""
 223 #endif  /* !__GNUC__ */
 224 #endif  /* !G_DISABLE_DEPRECATED */
 225
 226 #if __has_feature(attribute_analyzer_noreturn) && defined(__clang_analyzer__)
 227 #define G_ANALYZER_ANALYZING 1
 228 #define G_ANALYZER_NORETURN __attribute__((analyzer_noreturn))
 229 #else
 230 #define G_ANALYZER_ANALYZING 0
 231 #define G_ANALYZER_NORETURN
 232 #endif
 233
 234 #define G_STRINGIFY(macro_or_string)    G_STRINGIFY_ARG (macro_or_string)
 235 #define G_STRINGIFY_ARG(contents)       #contents
 236
 237 #ifndef __GI_SCANNER__ /* The static assert macro really confuses the introspection parser */
 238 #define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2
 239 #define G_PASTE(identifier1,identifier2)      G_PASTE_ARGS (identifier1, identifier2)
 240 #ifdef __COUNTER__
 241 #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED
 242 #else
 243 #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __LINE__)[(expr) ? 1 : -1] G_GNUC_UNUSED
 244 #endif
 245 #define G_STATIC_ASSERT_EXPR(expr) ((void) sizeof (char[(expr) ? 1 : -1]))
 246 #endif
 247
 248 /* Provide a string identifying the current code position */
 249 #if defined(__GNUC__) && (__GNUC__ < 3) && !defined(__cplusplus)
 250 #define G_STRLOC        __FILE__ ":" G_STRINGIFY (__LINE__) ":" __PRETTY_FUNCTION__ "()"
 251 #else
 252 #define G_STRLOC        __FILE__ ":" G_STRINGIFY (__LINE__)
 253 #endif
 254
 255 /* Provide a string identifying the current function, non-concatenatable */
 256 #if defined (__GNUC__) && defined (__cplusplus)
 257 #define G_STRFUNC     ((const char*) (__PRETTY_FUNCTION__))
 258 #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 259 #define G_STRFUNC     ((const char*) (__func__))
 260 #elif defined (__GNUC__) || (defined(_MSC_VER) && (_MSC_VER > 1300))
 261 #define G_STRFUNC     ((const char*) (__FUNCTION__))
 262 #else
 263 #define G_STRFUNC     ((const char*) ("???"))
 264 #endif
 265
 266 /* Guard C code in headers, while including them from C++ */
 267 #ifdef  __cplusplus
 268 #define G_BEGIN_DECLS  extern "C" {
 269 #define G_END_DECLS    }
 270 #else
 271 #define G_BEGIN_DECLS
 272 #define G_END_DECLS
 273 #endif
 274
 275 /* Provide definitions for some commonly used macros.
 276  *  Some of them are only provided if they haven't already
 277  *  been defined. It is assumed that if they are already
 278  *  defined then the current definition is correct.
 279  */
 280 #ifndef NULL
 281 #  ifdef __cplusplus
 282 #  define NULL        (0L)
 283 #  else /* !__cplusplus */
 284 #  define NULL        ((void*) 0)
 285 #  endif /* !__cplusplus */
 286 #endif
 287
 288 #ifndef FALSE
 289 #define FALSE   (0)
 290 #endif
 291
 292 #ifndef TRUE
 293 #define TRUE    (!FALSE)
 294 #endif
 295
 296 #undef  MAX
 297 #define MAX(a, b)  (((a) > (b)) ? (a) : (b))
 298
 299 #undef  MIN
 300 #define MIN(a, b)  (((a) < (b)) ? (a) : (b))
 301
 302 #undef  ABS
 303 #define ABS(a)     (((a) < 0) ? -(a) : (a))
 304
 305 #undef  CLAMP
 306 #define CLAMP(x, low, high)  (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
 307
 308 /* Count the number of elements in an array. The array must be defined
 309  * as such; using this with a dynamically allocated array will give
 310  * incorrect results.
 311  */
 312 #define G_N_ELEMENTS(arr)               (sizeof (arr) / sizeof ((arr)[0]))
 313
 314 /* Macros by analogy to GINT_TO_POINTER, GPOINTER_TO_INT
 315  */
 316 #define GPOINTER_TO_SIZE(p)     ((gsize) (p))
 317 #define GSIZE_TO_POINTER(s)     ((gpointer) (gsize) (s))
 318
 319 /* Provide convenience macros for handling structure
 320  * fields through their offsets.
 321  */
 322
 323 #if (defined(__GNUC__)  && __GNUC__ >= 4) || defined (_MSC_VER)
 324 #define G_STRUCT_OFFSET(struct_type, member) \
 325       ((glong) offsetof (struct_type, member))
 326 #else
 327 #define G_STRUCT_OFFSET(struct_type, member)    \
 328       ((glong) ((guint8*) &((struct_type*) 0)->member))
 329 #endif
 330
 331 #define G_STRUCT_MEMBER_P(struct_p, struct_offset)   \
 332     ((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset)))
 333 #define G_STRUCT_MEMBER(member_type, struct_p, struct_offset)   \
 334     (*(member_type*) G_STRUCT_MEMBER_P ((struct_p), (struct_offset)))
 335
 336 /* Provide simple macro statement wrappers:
 337  *   G_STMT_START { statements; } G_STMT_END;
 338  * This can be used as a single statement, like:
 339  *   if (x) G_STMT_START { ... } G_STMT_END; else ...
 340  * This intentionally does not use compiler extensions like GCC's '({...})' to
 341  * avoid portability issue or side effects when compiled with different compilers.
 342  * MSVC complains about "while(0)": C4127: "Conditional expression is constant",
 343  * so we use __pragma to avoid the warning since the use here is intentional.
 344  */
 345 #if !(defined (G_STMT_START) && defined (G_STMT_END))
 346 #define G_STMT_START  do
 347 #if defined (_MSC_VER) && (_MSC_VER >= 1500)
 348 #define G_STMT_END \
 349     __pragma(warning(push)) \
 350     __pragma(warning(disable:4127)) \
 351     while(0) \
 352     __pragma(warning(pop))
 353 #else
 354 #define G_STMT_END    while (0)
 355 #endif
 356 #endif
 357
 358 /* Deprecated -- do not use. */
 359 #ifndef G_DISABLE_DEPRECATED
 360 #ifdef G_DISABLE_CONST_RETURNS
 361 #define G_CONST_RETURN
 362 #else
 363 #define G_CONST_RETURN const
 364 #endif
 365 #endif
 366
 367 /*
 368  * The G_LIKELY and G_UNLIKELY macros let the programmer give hints to
 369  * the compiler about the expected result of an expression. Some compilers
 370  * can use this information for optimizations.
 371  *
 372  * The _G_BOOLEAN_EXPR macro is intended to trigger a gcc warning when
 373  * putting assignments in g_return_if_fail ().
 374  */
 375 #if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
 376 #define _G_BOOLEAN_EXPR(expr)                   \
 377  G_GNUC_EXTENSION ({                            \
 378    int _g_boolean_var_;                         \
 379    if (expr)                                    \
 380       _g_boolean_var_ = 1;                      \
 381    else                                         \
 382       _g_boolean_var_ = 0;                      \
 383    _g_boolean_var_;                             \
 384 })
 385 #define G_LIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR((expr)), 1))
 386 #define G_UNLIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR((expr)), 0))
 387 #else
 388 #define G_LIKELY(expr) (expr)
 389 #define G_UNLIKELY(expr) (expr)
 390 #endif
 391
 392 #if    __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
 393 #define G_DEPRECATED __attribute__((__deprecated__))
 394 #elif defined(_MSC_VER) && (_MSC_VER >= 1300)
 395 #define G_DEPRECATED __declspec(deprecated)
 396 #else
 397 #define G_DEPRECATED
 398 #endif
 399
 400 #if    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 401 #define G_DEPRECATED_FOR(f) __attribute__((__deprecated__("Use '" #f "' instead")))
 402 #elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
 403 #define G_DEPRECATED_FOR(f) __declspec(deprecated("is deprecated. Use '" #f "' instead"))
 404 #else
 405 #define G_DEPRECATED_FOR(f) G_DEPRECATED
 406 #endif
 407
 408 #if    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 409 #define G_UNAVAILABLE(maj,min) __attribute__((deprecated("Not available before " #maj "." #min)))
 410 #elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
 411 #define G_UNAVAILABLE(maj,min) __declspec(deprecated("is not available before " #maj "." #min))
 412 #else
 413 #define G_UNAVAILABLE(maj,min) G_DEPRECATED
 414 #endif
 415
 416 #ifndef _GLIB_EXTERN
 417 #define _GLIB_EXTERN extern
 418 #endif
 419
 420 /* These macros are used to mark deprecated functions in GLib headers,
 421  * and thus have to be exposed in installed headers. But please
 422  * do *not* use them in other projects. Instead, use G_DEPRECATED
 423  * or define your own wrappers around it.
 424  */
 425
 426 #ifdef GLIB_DISABLE_DEPRECATION_WARNINGS
 427 #define GLIB_DEPRECATED _GLIB_EXTERN
 428 #define GLIB_DEPRECATED_FOR(f) _GLIB_EXTERN
 429 #define GLIB_UNAVAILABLE(maj,min) _GLIB_EXTERN
 430 #else
 431 #define GLIB_DEPRECATED G_DEPRECATED _GLIB_EXTERN
 432 #define GLIB_DEPRECATED_FOR(f) G_DEPRECATED_FOR(f) _GLIB_EXTERN
 433 #define GLIB_UNAVAILABLE(maj,min) G_UNAVAILABLE(maj,min) _GLIB_EXTERN
 434 #endif
 435
 436 #ifndef __GI_SCANNER__
 437
 438 #ifdef __GNUC__
 439
 440 /* these macros are private */
 441 #define _GLIB_AUTOPTR_FUNC_NAME(TypeName) glib_autoptr_cleanup_##TypeName
 442 #define _GLIB_AUTOPTR_TYPENAME(TypeName)  TypeName##_autoptr
 443 #define _GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName) glib_listautoptr_cleanup_##TypeName
 444 #define _GLIB_AUTOPTR_LIST_TYPENAME(TypeName)  TypeName##_listautoptr
 445 #define _GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName) glib_slistautoptr_cleanup_##TypeName
 446 #define _GLIB_AUTOPTR_SLIST_TYPENAME(TypeName)  TypeName##_slistautoptr
 447 #define _GLIB_AUTO_FUNC_NAME(TypeName)    glib_auto_cleanup_##TypeName
 448 #define _GLIB_CLEANUP(func)               __attribute__((cleanup(func)))
 449 #define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName) \
 450   typedef ModuleObjName *_GLIB_AUTOPTR_TYPENAME(ModuleObjName);                                          \
 451   static inline void _GLIB_AUTOPTR_FUNC_NAME(ModuleObjName) (ModuleObjName **_ptr) {                     \
 452     _GLIB_AUTOPTR_FUNC_NAME(ParentName) ((ParentName **) _ptr); }                                        \
 453
 454
 455 /* these macros are API */
 456 #define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func) \
 457   typedef TypeName *_GLIB_AUTOPTR_TYPENAME(TypeName);                                                           \
 458   typedef GList *_GLIB_AUTOPTR_LIST_TYPENAME(TypeName);                                                         \
 459   typedef GSList *_GLIB_AUTOPTR_SLIST_TYPENAME(TypeName);                                                         \
 460   G_GNUC_BEGIN_IGNORE_DEPRECATIONS                                                                              \
 461   static inline void _GLIB_AUTOPTR_FUNC_NAME(TypeName) (TypeName **_ptr) { if (*_ptr) (func) (*_ptr); }         \
 462   static inline void _GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName) (GList **_l) { g_list_free_full (*_l, (GDestroyNotify) func); } \
 463   static inline void _GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName) (GSList **_l) { g_slist_free_full (*_l, (GDestroyNotify) func); } \
 464   G_GNUC_END_IGNORE_DEPRECATIONS
 465 #define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func) \
 466   G_GNUC_BEGIN_IGNORE_DEPRECATIONS                                                                              \
 467   static inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { (func) (_ptr); }                         \
 468   G_GNUC_END_IGNORE_DEPRECATIONS
 469 #define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none) \
 470   G_GNUC_BEGIN_IGNORE_DEPRECATIONS                                                                              \
 471   static inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { if (*_ptr != none) (func) (*_ptr); }     \
 472   G_GNUC_END_IGNORE_DEPRECATIONS
 473 #define g_autoptr(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_TYPENAME(TypeName)
 474 #define g_autolist(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_LIST_TYPENAME(TypeName)
 475 #define g_autoslist(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_SLIST_TYPENAME(TypeName)
 476 #define g_auto(TypeName) _GLIB_CLEANUP(_GLIB_AUTO_FUNC_NAME(TypeName)) TypeName
 477 #define g_autofree _GLIB_CLEANUP(g_autoptr_cleanup_generic_gfree)
 478
 479 #else /* not GNU C */
 480 /* this (dummy) macro is private */
 481 #define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName)
 482
 483 /* these (dummy) macros are API */
 484 #define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func)
 485 #define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func)
 486 #define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none)
 487
 488 /* no declaration of g_auto() or g_autoptr() here */
 489 #endif /* __GNUC__ */
 490
 491 #else
 492
 493 #define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName)
 494
 495 #define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func)
 496 #define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func)
 497 #define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none)
 498
 499 #endif /* __GI_SCANNER__ */
 500
 501 #endif /* __G_MACROS_H__ */