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 #define G_GNUC_NO_INLINE __attribute__((noinline))
 101 #else
 102 #define G_GNUC_PURE
 103 #define G_GNUC_MALLOC
 104 #define G_GNUC_NO_INLINE
 105 #endif
 106
 107 #if     __GNUC__ >= 4
 108 #define G_GNUC_NULL_TERMINATED __attribute__((__sentinel__))
 109 #else
 110 #define G_GNUC_NULL_TERMINATED
 111 #endif
 112
 113 /*
 114  * Clang feature detection: http://clang.llvm.org/docs/LanguageExtensions.html
 115  * These are not available on GCC, but since the pre-processor doesn't do
 116  * operator short-circuiting, we can't use it in a statement or we'll get:
 117  *
 118  * error: missing binary operator before token "("
 119  *
 120  * So we define it to 0 to satisfy the pre-processor.
 121  */
 122
 123 #ifdef __has_attribute
 124 #define g_macro__has_attribute __has_attribute
 125 #else
 126 #define g_macro__has_attribute(x) 0
 127 #endif
 128
 129 #ifdef __has_feature
 130 #define g_macro__has_feature __has_feature
 131 #else
 132 #define g_macro__has_feature(x) 0
 133 #endif
 134
 135 #ifdef __has_builtin
 136 #define g_macro__has_builtin __has_builtin
 137 #else
 138 #define g_macro__has_builtin(x) 0
 139 #endif
 140
 141 #if     (!defined(__clang__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || \
 142         (defined(__clang__) && g_macro__has_attribute(__alloc_size__))
 143 #define G_GNUC_ALLOC_SIZE(x) __attribute__((__alloc_size__(x)))
 144 #define G_GNUC_ALLOC_SIZE2(x,y) __attribute__((__alloc_size__(x,y)))
 145 #else
 146 #define G_GNUC_ALLOC_SIZE(x)
 147 #define G_GNUC_ALLOC_SIZE2(x,y)
 148 #endif
 149
 150 #if     __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
 151 #if !defined (__clang__) && G_GNUC_CHECK_VERSION (4, 4)
 152 #define G_GNUC_PRINTF( format_idx, arg_idx )    \
 153   __attribute__((__format__ (gnu_printf, format_idx, arg_idx)))
 154 #define G_GNUC_SCANF( format_idx, arg_idx )     \
 155   __attribute__((__format__ (gnu_scanf, format_idx, arg_idx)))
 156 #else
 157 #define G_GNUC_PRINTF( format_idx, arg_idx )    \
 158   __attribute__((__format__ (__printf__, format_idx, arg_idx)))
 159 #define G_GNUC_SCANF( format_idx, arg_idx )     \
 160   __attribute__((__format__ (__scanf__, format_idx, arg_idx)))
 161 #endif
 162 #define G_GNUC_FORMAT( arg_idx )                \
 163   __attribute__((__format_arg__ (arg_idx)))
 164 #define G_GNUC_NORETURN                         \
 165   __attribute__((__noreturn__))
 166 #define G_GNUC_CONST                            \
 167   __attribute__((__const__))
 168 #define G_GNUC_UNUSED                           \
 169   __attribute__((__unused__))
 170 #define G_GNUC_NO_INSTRUMENT                    \
 171   __attribute__((__no_instrument_function__))
 172 #else   /* !__GNUC__ */
 173 #define G_GNUC_PRINTF( format_idx, arg_idx )
 174 #define G_GNUC_SCANF( format_idx, arg_idx )
 175 #define G_GNUC_FORMAT( arg_idx )
 176 #define G_GNUC_NORETURN
 177 #define G_GNUC_CONST
 178 #define G_GNUC_UNUSED
 179 #define G_GNUC_NO_INSTRUMENT
 180 #endif  /* !__GNUC__ */
 181
 182 #if    __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
 183 #define G_GNUC_DEPRECATED __attribute__((__deprecated__))
 184 #else
 185 #define G_GNUC_DEPRECATED
 186 #endif /* __GNUC__ */
 187
 188 #if    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 189 #define G_GNUC_DEPRECATED_FOR(f)                        \
 190   __attribute__((deprecated("Use " #f " instead")))
 191 #else
 192 #define G_GNUC_DEPRECATED_FOR(f)        G_GNUC_DEPRECATED
 193 #endif /* __GNUC__ */
 194
 195 #ifdef __ICC
 196 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS                \
 197   _Pragma ("warning (push)")                            \
 198   _Pragma ("warning (disable:1478)")
 199 #define G_GNUC_END_IGNORE_DEPRECATIONS                  \
 200   _Pragma ("warning (pop)")
 201 #elif    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
 202 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS                \
 203   _Pragma ("GCC diagnostic push")                       \
 204   _Pragma ("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
 205 #define G_GNUC_END_IGNORE_DEPRECATIONS                  \
 206   _Pragma ("GCC diagnostic pop")
 207 #elif defined (_MSC_VER) && (_MSC_VER >= 1500)
 208 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS                \
 209   __pragma (warning (push))  \
 210   __pragma (warning (disable : 4996))
 211 #define G_GNUC_END_IGNORE_DEPRECATIONS                  \
 212   __pragma (warning (pop))
 213 #elif defined (__clang__)
 214 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
 215   _Pragma("clang diagnostic push") \
 216   _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
 217 #define G_GNUC_END_IGNORE_DEPRECATIONS \
 218   _Pragma("clang diagnostic pop")
 219 #else
 220 #define G_GNUC_BEGIN_IGNORE_DEPRECATIONS
 221 #define G_GNUC_END_IGNORE_DEPRECATIONS
 222 #endif
 223
 224 #if     __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
 225 #define G_GNUC_MAY_ALIAS __attribute__((may_alias))
 226 #else
 227 #define G_GNUC_MAY_ALIAS
 228 #endif
 229
 230 #if    __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 231 #define G_GNUC_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
 232 #else
 233 #define G_GNUC_WARN_UNUSED_RESULT
 234 #endif /* __GNUC__ */
 235
 236 #ifndef G_DISABLE_DEPRECATED
 237 /* Wrap the gcc __PRETTY_FUNCTION__ and __FUNCTION__ variables with
 238  * macros, so we can refer to them as strings unconditionally.
 239  * usage not-recommended since gcc-3.0
 240  */
 241 #if defined (__GNUC__) && (__GNUC__ < 3)
 242 #define G_GNUC_FUNCTION         __FUNCTION__
 243 #define G_GNUC_PRETTY_FUNCTION  __PRETTY_FUNCTION__
 244 #else   /* !__GNUC__ */
 245 #define G_GNUC_FUNCTION         ""
 246 #define G_GNUC_PRETTY_FUNCTION  ""
 247 #endif  /* !__GNUC__ */
 248 #endif  /* !G_DISABLE_DEPRECATED */
 249
 250 #if g_macro__has_feature(attribute_analyzer_noreturn) && defined(__clang_analyzer__)
 251 #define G_ANALYZER_ANALYZING 1
 252 #define G_ANALYZER_NORETURN __attribute__((analyzer_noreturn))
 253 #else
 254 #define G_ANALYZER_ANALYZING 0
 255 #define G_ANALYZER_NORETURN
 256 #endif
 257
 258 #define G_STRINGIFY(macro_or_string)    G_STRINGIFY_ARG (macro_or_string)
 259 #define G_STRINGIFY_ARG(contents)       #contents
 260
 261 #ifndef __GI_SCANNER__ /* The static assert macro really confuses the introspection parser */
 262 #define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2
 263 #define G_PASTE(identifier1,identifier2)      G_PASTE_ARGS (identifier1, identifier2)
 264 #ifdef __COUNTER__
 265 #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED
 266 #else
 267 #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __LINE__)[(expr) ? 1 : -1] G_GNUC_UNUSED
 268 #endif
 269 #define G_STATIC_ASSERT_EXPR(expr) ((void) sizeof (char[(expr) ? 1 : -1]))
 270 #endif
 271
 272 /* Provide a string identifying the current code position */
 273 #if defined(__GNUC__) && (__GNUC__ < 3) && !defined(__cplusplus)
 274 #define G_STRLOC        __FILE__ ":" G_STRINGIFY (__LINE__) ":" __PRETTY_FUNCTION__ "()"
 275 #else
 276 #define G_STRLOC        __FILE__ ":" G_STRINGIFY (__LINE__)
 277 #endif
 278
 279 /* Provide a string identifying the current function, non-concatenatable */
 280 #if defined (__GNUC__) && defined (__cplusplus)
 281 #define G_STRFUNC     ((const char*) (__PRETTY_FUNCTION__))
 282 #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 283 #define G_STRFUNC     ((const char*) (__func__))
 284 #elif defined (__GNUC__) || (defined(_MSC_VER) && (_MSC_VER > 1300))
 285 #define G_STRFUNC     ((const char*) (__FUNCTION__))
 286 #else
 287 #define G_STRFUNC     ((const char*) ("???"))
 288 #endif
 289
 290 /* Guard C code in headers, while including them from C++ */
 291 #ifdef  __cplusplus
 292 #define G_BEGIN_DECLS  extern "C" {
 293 #define G_END_DECLS    }
 294 #else
 295 #define G_BEGIN_DECLS
 296 #define G_END_DECLS
 297 #endif
 298
 299 /* Provide definitions for some commonly used macros.
 300  *  Some of them are only provided if they haven't already
 301  *  been defined. It is assumed that if they are already
 302  *  defined then the current definition is correct.
 303  */
 304 #ifndef NULL
 305 #  ifdef __cplusplus
 306 #  define NULL        (0L)
 307 #  else /* !__cplusplus */
 308 #  define NULL        ((void*) 0)
 309 #  endif /* !__cplusplus */
 310 #endif
 311
 312 #ifndef FALSE
 313 #define FALSE   (0)
 314 #endif
 315
 316 #ifndef TRUE
 317 #define TRUE    (!FALSE)
 318 #endif
 319
 320 #undef  MAX
 321 #define MAX(a, b)  (((a) > (b)) ? (a) : (b))
 322
 323 #undef  MIN
 324 #define MIN(a, b)  (((a) < (b)) ? (a) : (b))
 325
 326 #undef  ABS
 327 #define ABS(a)     (((a) < 0) ? -(a) : (a))
 328
 329 #undef  CLAMP
 330 #define CLAMP(x, low, high)  (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
 331
 332 #define G_APPROX_VALUE(a, b, epsilon) \
 333   (((a) > (b) ? (a) - (b) : (b) - (a)) < (epsilon))
 334
 335 /* Count the number of elements in an array. The array must be defined
 336  * as such; using this with a dynamically allocated array will give
 337  * incorrect results.
 338  */
 339 #define G_N_ELEMENTS(arr)               (sizeof (arr) / sizeof ((arr)[0]))
 340
 341 /* Macros by analogy to GINT_TO_POINTER, GPOINTER_TO_INT
 342  */
 343 #define GPOINTER_TO_SIZE(p)     ((gsize) (p))
 344 #define GSIZE_TO_POINTER(s)     ((gpointer) (gsize) (s))
 345
 346 /* Provide convenience macros for handling structure
 347  * fields through their offsets.
 348  */
 349
 350 #if (defined(__GNUC__)  && __GNUC__ >= 4) || defined (_MSC_VER)
 351 #define G_STRUCT_OFFSET(struct_type, member) \
 352       ((glong) offsetof (struct_type, member))
 353 #else
 354 #define G_STRUCT_OFFSET(struct_type, member)    \
 355       ((glong) ((guint8*) &((struct_type*) 0)->member))
 356 #endif
 357
 358 #define G_STRUCT_MEMBER_P(struct_p, struct_offset)   \
 359     ((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset)))
 360 #define G_STRUCT_MEMBER(member_type, struct_p, struct_offset)   \
 361     (*(member_type*) G_STRUCT_MEMBER_P ((struct_p), (struct_offset)))
 362
 363 /* Provide simple macro statement wrappers:
 364  *   G_STMT_START { statements; } G_STMT_END;
 365  * This can be used as a single statement, like:
 366  *   if (x) G_STMT_START { ... } G_STMT_END; else ...
 367  * This intentionally does not use compiler extensions like GCC's '({...})' to
 368  * avoid portability issue or side effects when compiled with different compilers.
 369  * MSVC complains about "while(0)": C4127: "Conditional expression is constant",
 370  * so we use __pragma to avoid the warning since the use here is intentional.
 371  */
 372 #if !(defined (G_STMT_START) && defined (G_STMT_END))
 373 #define G_STMT_START  do
 374 #if defined (_MSC_VER) && (_MSC_VER >= 1500)
 375 #define G_STMT_END \
 376     __pragma(warning(push)) \
 377     __pragma(warning(disable:4127)) \
 378     while(0) \
 379     __pragma(warning(pop))
 380 #else
 381 #define G_STMT_END    while (0)
 382 #endif
 383 #endif
 384
 385 /* Deprecated -- do not use. */
 386 #ifndef G_DISABLE_DEPRECATED
 387 #ifdef G_DISABLE_CONST_RETURNS
 388 #define G_CONST_RETURN
 389 #else
 390 #define G_CONST_RETURN const
 391 #endif
 392 #endif
 393
 394 /*
 395  * The G_LIKELY and G_UNLIKELY macros let the programmer give hints to
 396  * the compiler about the expected result of an expression. Some compilers
 397  * can use this information for optimizations.
 398  *
 399  * The _G_BOOLEAN_EXPR macro is intended to trigger a gcc warning when
 400  * putting assignments in g_return_if_fail ().
 401  */
 402 #if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
 403 #define _G_BOOLEAN_EXPR(expr)                   \
 404  G_GNUC_EXTENSION ({                            \
 405    int _g_boolean_var_;                         \
 406    if (expr)                                    \
 407       _g_boolean_var_ = 1;                      \
 408    else                                         \
 409       _g_boolean_var_ = 0;                      \
 410    _g_boolean_var_;                             \
 411 })
 412 #define G_LIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR((expr)), 1))
 413 #define G_UNLIKELY(expr) (__builtin_expect (_G_BOOLEAN_EXPR((expr)), 0))
 414 #else
 415 #define G_LIKELY(expr) (expr)
 416 #define G_UNLIKELY(expr) (expr)
 417 #endif
 418
 419 #if    __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
 420 #define G_DEPRECATED __attribute__((__deprecated__))
 421 #elif defined(_MSC_VER) && (_MSC_VER >= 1300)
 422 #define G_DEPRECATED __declspec(deprecated)
 423 #else
 424 #define G_DEPRECATED
 425 #endif
 426
 427 #if    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 428 #define G_DEPRECATED_FOR(f) __attribute__((__deprecated__("Use '" #f "' instead")))
 429 #elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
 430 #define G_DEPRECATED_FOR(f) __declspec(deprecated("is deprecated. Use '" #f "' instead"))
 431 #else
 432 #define G_DEPRECATED_FOR(f) G_DEPRECATED
 433 #endif
 434
 435 #if    __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
 436 #define G_UNAVAILABLE(maj,min) __attribute__((deprecated("Not available before " #maj "." #min)))
 437 #elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
 438 #define G_UNAVAILABLE(maj,min) __declspec(deprecated("is not available before " #maj "." #min))
 439 #else
 440 #define G_UNAVAILABLE(maj,min) G_DEPRECATED
 441 #endif
 442
 443 #ifndef _GLIB_EXTERN
 444 #define _GLIB_EXTERN extern
 445 #endif
 446
 447 /* These macros are used to mark deprecated functions in GLib headers,
 448  * and thus have to be exposed in installed headers. But please
 449  * do *not* use them in other projects. Instead, use G_DEPRECATED
 450  * or define your own wrappers around it.
 451  */
 452
 453 #ifdef GLIB_DISABLE_DEPRECATION_WARNINGS
 454 #define GLIB_DEPRECATED _GLIB_EXTERN
 455 #define GLIB_DEPRECATED_FOR(f) _GLIB_EXTERN
 456 #define GLIB_UNAVAILABLE(maj,min) _GLIB_EXTERN
 457 #else
 458 #define GLIB_DEPRECATED G_DEPRECATED _GLIB_EXTERN
 459 #define GLIB_DEPRECATED_FOR(f) G_DEPRECATED_FOR(f) _GLIB_EXTERN
 460 #define GLIB_UNAVAILABLE(maj,min) G_UNAVAILABLE(maj,min) _GLIB_EXTERN
 461 #endif
 462
 463 #ifndef __GI_SCANNER__
 464
 465 #ifdef __GNUC__
 466
 467 /* these macros are private */
 468 #define _GLIB_AUTOPTR_FUNC_NAME(TypeName) glib_autoptr_cleanup_##TypeName
 469 #define _GLIB_AUTOPTR_TYPENAME(TypeName)  TypeName##_autoptr
 470 #define _GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName) glib_listautoptr_cleanup_##TypeName
 471 #define _GLIB_AUTOPTR_LIST_TYPENAME(TypeName)  TypeName##_listautoptr
 472 #define _GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName) glib_slistautoptr_cleanup_##TypeName
 473 #define _GLIB_AUTOPTR_SLIST_TYPENAME(TypeName)  TypeName##_slistautoptr
 474 #define _GLIB_AUTO_FUNC_NAME(TypeName)    glib_auto_cleanup_##TypeName
 475 #define _GLIB_CLEANUP(func)               __attribute__((cleanup(func)))
 476 #define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName) \
 477   typedef ModuleObjName *_GLIB_AUTOPTR_TYPENAME(ModuleObjName);                                          \
 478   static inline void _GLIB_AUTOPTR_FUNC_NAME(ModuleObjName) (ModuleObjName **_ptr) {                     \
 479     _GLIB_AUTOPTR_FUNC_NAME(ParentName) ((ParentName **) _ptr); }                                        \
 480
 481
 482 /* these macros are API */
 483 #define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func) \
 484   typedef TypeName *_GLIB_AUTOPTR_TYPENAME(TypeName);                                                           \
 485   typedef GList *_GLIB_AUTOPTR_LIST_TYPENAME(TypeName);                                                         \
 486   typedef GSList *_GLIB_AUTOPTR_SLIST_TYPENAME(TypeName);                                                         \
 487   G_GNUC_BEGIN_IGNORE_DEPRECATIONS                                                                              \
 488   static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_FUNC_NAME(TypeName) (TypeName **_ptr) { if (*_ptr) (func) (*_ptr); }         \
 489   static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName) (GList **_l) { g_list_free_full (*_l, (GDestroyNotify) (void(*)(void)) func); } \
 490   static G_GNUC_UNUSED inline void _GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName) (GSList **_l) { g_slist_free_full (*_l, (GDestroyNotify) (void(*)(void)) func); } \
 491   G_GNUC_END_IGNORE_DEPRECATIONS
 492 #define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func) \
 493   G_GNUC_BEGIN_IGNORE_DEPRECATIONS                                                                              \
 494   static inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { (func) (_ptr); }                         \
 495   G_GNUC_END_IGNORE_DEPRECATIONS
 496 #define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none) \
 497   G_GNUC_BEGIN_IGNORE_DEPRECATIONS                                                                              \
 498   static inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { if (*_ptr != none) (func) (*_ptr); }     \
 499   G_GNUC_END_IGNORE_DEPRECATIONS
 500 #define g_autoptr(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_TYPENAME(TypeName)
 501 #define g_autolist(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_LIST_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_LIST_TYPENAME(TypeName)
 502 #define g_autoslist(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_SLIST_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_SLIST_TYPENAME(TypeName)
 503 #define g_auto(TypeName) _GLIB_CLEANUP(_GLIB_AUTO_FUNC_NAME(TypeName)) TypeName
 504 #define g_autofree _GLIB_CLEANUP(g_autoptr_cleanup_generic_gfree)
 505
 506 #else /* not GNU C */
 507 /* this (dummy) macro is private */
 508 #define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName)
 509
 510 /* these (dummy) macros are API */
 511 #define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func)
 512 #define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func)
 513 #define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none)
 514
 515 /* no declaration of g_auto() or g_autoptr() here */
 516 #endif /* __GNUC__ */
 517
 518 #else
 519
 520 #define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName)
 521
 522 #define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func)
 523 #define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func)
 524 #define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none)
 525
 526 #endif /* __GI_SCANNER__ */
 527
 528 #endif /* __G_MACROS_H__ */