[thirdparty/gcc.git] / gcc / ginclude / stdatomic.h

/* Copyright (C) 2013-2021 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GCC 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 General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */

/* ISO C11 Standard:  7.17  Atomics <stdatomic.h>.  */

#ifndef _STDATOMIC_H
#define _STDATOMIC_H

typedef enum
  {
    memory_order_relaxed = __ATOMIC_RELAXED,
    memory_order_consume = __ATOMIC_CONSUME,
    memory_order_acquire = __ATOMIC_ACQUIRE,
    memory_order_release = __ATOMIC_RELEASE,
    memory_order_acq_rel = __ATOMIC_ACQ_REL,
    memory_order_seq_cst = __ATOMIC_SEQ_CST
  } memory_order;


typedef _Atomic _Bool atomic_bool;
typedef _Atomic char atomic_char;
typedef _Atomic signed char atomic_schar;
typedef _Atomic unsigned char atomic_uchar;
typedef _Atomic short atomic_short;
typedef _Atomic unsigned short atomic_ushort;
typedef _Atomic int atomic_int;
typedef _Atomic unsigned int atomic_uint;
typedef _Atomic long atomic_long;
typedef _Atomic unsigned long atomic_ulong;
typedef _Atomic long long atomic_llong;
typedef _Atomic unsigned long long atomic_ullong;
typedef _Atomic __CHAR16_TYPE__ atomic_char16_t;
typedef _Atomic __CHAR32_TYPE__ atomic_char32_t;
typedef _Atomic __WCHAR_TYPE__ atomic_wchar_t;
typedef _Atomic __INT_LEAST8_TYPE__ atomic_int_least8_t;
typedef _Atomic __UINT_LEAST8_TYPE__ atomic_uint_least8_t;
typedef _Atomic __INT_LEAST16_TYPE__ atomic_int_least16_t;
typedef _Atomic __UINT_LEAST16_TYPE__ atomic_uint_least16_t;
typedef _Atomic __INT_LEAST32_TYPE__ atomic_int_least32_t;
typedef _Atomic __UINT_LEAST32_TYPE__ atomic_uint_least32_t;
typedef _Atomic __INT_LEAST64_TYPE__ atomic_int_least64_t;
typedef _Atomic __UINT_LEAST64_TYPE__ atomic_uint_least64_t;
typedef _Atomic __INT_FAST8_TYPE__ atomic_int_fast8_t;
typedef _Atomic __UINT_FAST8_TYPE__ atomic_uint_fast8_t;
typedef _Atomic __INT_FAST16_TYPE__ atomic_int_fast16_t;
typedef _Atomic __UINT_FAST16_TYPE__ atomic_uint_fast16_t;
typedef _Atomic __INT_FAST32_TYPE__ atomic_int_fast32_t;
typedef _Atomic __UINT_FAST32_TYPE__ atomic_uint_fast32_t;
typedef _Atomic __INT_FAST64_TYPE__ atomic_int_fast64_t;
typedef _Atomic __UINT_FAST64_TYPE__ atomic_uint_fast64_t;
typedef _Atomic __INTPTR_TYPE__ atomic_intptr_t;
typedef _Atomic __UINTPTR_TYPE__ atomic_uintptr_t;
typedef _Atomic __SIZE_TYPE__ atomic_size_t;
typedef _Atomic __PTRDIFF_TYPE__ atomic_ptrdiff_t;
typedef _Atomic __INTMAX_TYPE__ atomic_intmax_t;
typedef _Atomic __UINTMAX_TYPE__ atomic_uintmax_t;        


#define ATOMIC_VAR_INIT(VALUE)	(VALUE)

/* Initialize an atomic object pointed to by PTR with VAL.  */
#define atomic_init(PTR, VAL)                           \
  atomic_store_explicit (PTR, VAL, __ATOMIC_RELAXED)

#define kill_dependency(Y)			\
  __extension__					\
  ({						\
    __auto_type __kill_dependency_tmp = (Y);	\
    __kill_dependency_tmp;			\
  })

extern void atomic_thread_fence (memory_order);
#define atomic_thread_fence(MO)	__atomic_thread_fence (MO)
extern void atomic_signal_fence (memory_order);
#define atomic_signal_fence(MO)	__atomic_signal_fence  (MO)
#define atomic_is_lock_free(OBJ) __atomic_is_lock_free (sizeof (*(OBJ)), (OBJ))

#define ATOMIC_BOOL_LOCK_FREE		__GCC_ATOMIC_BOOL_LOCK_FREE
#define ATOMIC_CHAR_LOCK_FREE		__GCC_ATOMIC_CHAR_LOCK_FREE
#define ATOMIC_CHAR16_T_LOCK_FREE	__GCC_ATOMIC_CHAR16_T_LOCK_FREE
#define ATOMIC_CHAR32_T_LOCK_FREE	__GCC_ATOMIC_CHAR32_T_LOCK_FREE
#define ATOMIC_WCHAR_T_LOCK_FREE	__GCC_ATOMIC_WCHAR_T_LOCK_FREE
#define ATOMIC_SHORT_LOCK_FREE		__GCC_ATOMIC_SHORT_LOCK_FREE
#define ATOMIC_INT_LOCK_FREE		__GCC_ATOMIC_INT_LOCK_FREE
#define ATOMIC_LONG_LOCK_FREE		__GCC_ATOMIC_LONG_LOCK_FREE
#define ATOMIC_LLONG_LOCK_FREE		__GCC_ATOMIC_LLONG_LOCK_FREE
#define ATOMIC_POINTER_LOCK_FREE	__GCC_ATOMIC_POINTER_LOCK_FREE


/* Note that these macros require __auto_type to remove
   _Atomic qualifiers (and const qualifiers, if those are valid on
   macro operands).
   
   Also note that the header file uses the generic form of __atomic
   builtins, which requires the address to be taken of the value
   parameter, and then we pass that value on.  This allows the macros
   to work for any type, and the compiler is smart enough to convert
   these to lock-free _N variants if possible, and throw away the
   temps.  */

#define atomic_store_explicit(PTR, VAL, MO)				\
  __extension__								\
  ({									\
    __auto_type __atomic_store_ptr = (PTR);				\
    __typeof__ ((void)0, *__atomic_store_ptr) __atomic_store_tmp = (VAL);	\
    __atomic_store (__atomic_store_ptr, &__atomic_store_tmp, (MO));	\
  })

#define atomic_store(PTR, VAL)				\
  atomic_store_explicit (PTR, VAL, __ATOMIC_SEQ_CST)


#define atomic_load_explicit(PTR, MO)					\
  __extension__								\
  ({									\
    __auto_type __atomic_load_ptr = (PTR);				\
    __typeof__ ((void)0, *__atomic_load_ptr) __atomic_load_tmp;			\
    __atomic_load (__atomic_load_ptr, &__atomic_load_tmp, (MO));	\
    __atomic_load_tmp;							\
  })

#define atomic_load(PTR)  atomic_load_explicit (PTR, __ATOMIC_SEQ_CST)


#define atomic_exchange_explicit(PTR, VAL, MO)				\
  __extension__								\
  ({									\
    __auto_type __atomic_exchange_ptr = (PTR);				\
    __typeof__ ((void)0, *__atomic_exchange_ptr) __atomic_exchange_val = (VAL);	\
    __typeof__ ((void)0, *__atomic_exchange_ptr) __atomic_exchange_tmp;		\
    __atomic_exchange (__atomic_exchange_ptr, &__atomic_exchange_val,	\
		       &__atomic_exchange_tmp, (MO));			\
    __atomic_exchange_tmp;						\
  })

#define atomic_exchange(PTR, VAL) 			\
  atomic_exchange_explicit (PTR, VAL, __ATOMIC_SEQ_CST)


#define atomic_compare_exchange_strong_explicit(PTR, VAL, DES, SUC, FAIL) \
  __extension__								\
  ({									\
    __auto_type __atomic_compare_exchange_ptr = (PTR);			\
    __typeof__ ((void)0, *__atomic_compare_exchange_ptr) __atomic_compare_exchange_tmp \
      = (DES);								\
    __atomic_compare_exchange (__atomic_compare_exchange_ptr, (VAL),	\
			       &__atomic_compare_exchange_tmp, 0,	\
			       (SUC), (FAIL));				\
  })

#define atomic_compare_exchange_strong(PTR, VAL, DES) 			   \
  atomic_compare_exchange_strong_explicit (PTR, VAL, DES, __ATOMIC_SEQ_CST, \
					   __ATOMIC_SEQ_CST)

#define atomic_compare_exchange_weak_explicit(PTR, VAL, DES, SUC, FAIL) \
  __extension__								\
  ({									\
    __auto_type __atomic_compare_exchange_ptr = (PTR);			\
    __typeof__ ((void)0, *__atomic_compare_exchange_ptr) __atomic_compare_exchange_tmp \
      = (DES);								\
    __atomic_compare_exchange (__atomic_compare_exchange_ptr, (VAL),	\
			       &__atomic_compare_exchange_tmp, 1,	\
			       (SUC), (FAIL));				\
  })

#define atomic_compare_exchange_weak(PTR, VAL, DES)			\
  atomic_compare_exchange_weak_explicit (PTR, VAL, DES, __ATOMIC_SEQ_CST, \
					 __ATOMIC_SEQ_CST)


#define atomic_fetch_add(PTR, VAL) __atomic_fetch_add ((PTR), (VAL), 	\
						       __ATOMIC_SEQ_CST)
#define atomic_fetch_add_explicit(PTR, VAL, MO) 			\
			  __atomic_fetch_add ((PTR), (VAL), (MO))

#define atomic_fetch_sub(PTR, VAL) __atomic_fetch_sub ((PTR), (VAL), 	\
						       __ATOMIC_SEQ_CST)
#define atomic_fetch_sub_explicit(PTR, VAL, MO) 			\
			  __atomic_fetch_sub ((PTR), (VAL), (MO))

#define atomic_fetch_or(PTR, VAL) __atomic_fetch_or ((PTR), (VAL), 	\
						       __ATOMIC_SEQ_CST)
#define atomic_fetch_or_explicit(PTR, VAL, MO) 			\
			  __atomic_fetch_or ((PTR), (VAL), (MO))

#define atomic_fetch_xor(PTR, VAL) __atomic_fetch_xor ((PTR), (VAL), 	\
						       __ATOMIC_SEQ_CST)
#define atomic_fetch_xor_explicit(PTR, VAL, MO) 			\
			  __atomic_fetch_xor ((PTR), (VAL), (MO))

#define atomic_fetch_and(PTR, VAL) __atomic_fetch_and ((PTR), (VAL), 	\
						       __ATOMIC_SEQ_CST)
#define atomic_fetch_and_explicit(PTR, VAL, MO) 			\
			  __atomic_fetch_and ((PTR), (VAL), (MO))


typedef _Atomic struct
{
#if __GCC_ATOMIC_TEST_AND_SET_TRUEVAL == 1
  _Bool __val;
#else
  unsigned char __val;
#endif
} atomic_flag;

#define ATOMIC_FLAG_INIT	{ 0 }


extern _Bool atomic_flag_test_and_set (volatile atomic_flag *);
#define atomic_flag_test_and_set(PTR) 					\
			__atomic_test_and_set ((PTR), __ATOMIC_SEQ_CST)
extern _Bool atomic_flag_test_and_set_explicit (volatile atomic_flag *,
						memory_order);
#define atomic_flag_test_and_set_explicit(PTR, MO)			\
			__atomic_test_and_set ((PTR), (MO))

extern void atomic_flag_clear (volatile atomic_flag *);
#define atomic_flag_clear(PTR)	__atomic_clear ((PTR), __ATOMIC_SEQ_CST)
extern void atomic_flag_clear_explicit (volatile atomic_flag *, memory_order);
#define atomic_flag_clear_explicit(PTR, MO)   __atomic_clear ((PTR), (MO))

#endif  /* _STDATOMIC_H */
Commit	Line	Data
99dee823	1	/* Copyright (C) 2013-2021 Free Software Foundation, Inc.
39b2468c JM	2
	3	This file is part of GCC.
	4
	5	GCC is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 3, or (at your option)
	8	any later version.
	9
	10	GCC is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	Under Section 7 of GPL version 3, you are granted additional
	16	permissions described in the GCC Runtime Library Exception, version
	17	3.1, as published by the Free Software Foundation.
	18
	19	You should have received a copy of the GNU General Public License and
	20	a copy of the GCC Runtime Library Exception along with this program;
	21	see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	22	<http://www.gnu.org/licenses/>. */
	23
	24	/* ISO C11 Standard: 7.17 Atomics <stdatomic.h>. */
	25
	26	#ifndef _STDATOMIC_H
	27	#define _STDATOMIC_H
	28
	29	typedef enum
	30	{
	31	memory_order_relaxed = __ATOMIC_RELAXED,
	32	memory_order_consume = __ATOMIC_CONSUME,
	33	memory_order_acquire = __ATOMIC_ACQUIRE,
	34	memory_order_release = __ATOMIC_RELEASE,
	35	memory_order_acq_rel = __ATOMIC_ACQ_REL,
	36	memory_order_seq_cst = __ATOMIC_SEQ_CST
	37	} memory_order;
	38
	39
	40	typedef _Atomic _Bool atomic_bool;
	41	typedef _Atomic char atomic_char;
	42	typedef _Atomic signed char atomic_schar;
	43	typedef _Atomic unsigned char atomic_uchar;
	44	typedef _Atomic short atomic_short;
	45	typedef _Atomic unsigned short atomic_ushort;
	46	typedef _Atomic int atomic_int;
	47	typedef _Atomic unsigned int atomic_uint;
	48	typedef _Atomic long atomic_long;
	49	typedef _Atomic unsigned long atomic_ulong;
	50	typedef _Atomic long long atomic_llong;
	51	typedef _Atomic unsigned long long atomic_ullong;
	52	typedef _Atomic __CHAR16_TYPE__ atomic_char16_t;
	53	typedef _Atomic __CHAR32_TYPE__ atomic_char32_t;
	54	typedef _Atomic __WCHAR_TYPE__ atomic_wchar_t;
	55	typedef _Atomic __INT_LEAST8_TYPE__ atomic_int_least8_t;
	56	typedef _Atomic __UINT_LEAST8_TYPE__ atomic_uint_least8_t;
	57	typedef _Atomic __INT_LEAST16_TYPE__ atomic_int_least16_t;
	58	typedef _Atomic __UINT_LEAST16_TYPE__ atomic_uint_least16_t;
	59	typedef _Atomic __INT_LEAST32_TYPE__ atomic_int_least32_t;
	60	typedef _Atomic __UINT_LEAST32_TYPE__ atomic_uint_least32_t;
	61	typedef _Atomic __INT_LEAST64_TYPE__ atomic_int_least64_t;
	62	typedef _Atomic __UINT_LEAST64_TYPE__ atomic_uint_least64_t;
	63	typedef _Atomic __INT_FAST8_TYPE__ atomic_int_fast8_t;
	64	typedef _Atomic __UINT_FAST8_TYPE__ atomic_uint_fast8_t;
	65	typedef _Atomic __INT_FAST16_TYPE__ atomic_int_fast16_t;
66	typedef _Atomic __UINT_FAST16_TYPE__ atomic_uint_fast16_t;
67	typedef _Atomic __INT_FAST32_TYPE__ atomic_int_fast32_t;
68	typedef _Atomic __UINT_FAST32_TYPE__ atomic_uint_fast32_t;
69	typedef _Atomic __INT_FAST64_TYPE__ atomic_int_fast64_t;
70	typedef _Atomic __UINT_FAST64_TYPE__ atomic_uint_fast64_t;
71	typedef _Atomic __INTPTR_TYPE__ atomic_intptr_t;
72	typedef _Atomic __UINTPTR_TYPE__ atomic_uintptr_t;
73	typedef _Atomic __SIZE_TYPE__ atomic_size_t;
74	typedef _Atomic __PTRDIFF_TYPE__ atomic_ptrdiff_t;
75	typedef _Atomic __INTMAX_TYPE__ atomic_intmax_t;
76	typedef _Atomic __UINTMAX_TYPE__ atomic_uintmax_t;
77
78
79	#define ATOMIC_VAR_INIT(VALUE) (VALUE)
7585d94f MS	80
	81	/* Initialize an atomic object pointed to by PTR with VAL. */
	82	#define atomic_init(PTR, VAL) \
	83	atomic_store_explicit (PTR, VAL, __ATOMIC_RELAXED)
39b2468c JM	84
	85	#define kill_dependency(Y) \
	86	__extension__ \
	87	({ \
38b7bc7f	88	__auto_type __kill_dependency_tmp = (Y); \
39b2468c JM	89	__kill_dependency_tmp; \
	90	})
	91
c29c36ad	92	extern void atomic_thread_fence (memory_order);
39b2468c	93	#define atomic_thread_fence(MO) __atomic_thread_fence (MO)
c29c36ad	94	extern void atomic_signal_fence (memory_order);
39b2468c JM	95	#define atomic_signal_fence(MO) __atomic_signal_fence (MO)
	96	#define atomic_is_lock_free(OBJ) __atomic_is_lock_free (sizeof (*(OBJ)), (OBJ))
	97
0ee9c843 MP	98	#define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
	99	#define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
	100	#define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
	101	#define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
	102	#define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
	103	#define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
	104	#define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
	105	#define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
	106	#define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
	107	#define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
39b2468c JM	108
39b2468c JM	109
768ce4f0	110	/* Note that these macros require __auto_type to remove
38b7bc7f JM	111	_Atomic qualifiers (and const qualifiers, if those are valid on
38b7bc7f JM	112	macro operands).
39b2468c JM	113
	114	Also note that the header file uses the generic form of __atomic
	115	builtins, which requires the address to be taken of the value
	116	parameter, and then we pass that value on. This allows the macros
	117	to work for any type, and the compiler is smart enough to convert
	118	these to lock-free _N variants if possible, and throw away the
	119	temps. */
	120
38b7bc7f JM	121	#define atomic_store_explicit(PTR, VAL, MO) \
	122	__extension__ \
	123	({ \
	124	__auto_type __atomic_store_ptr = (PTR); \
768ce4f0	125	__typeof__ ((void)0, *__atomic_store_ptr) __atomic_store_tmp = (VAL); \
38b7bc7f	126	__atomic_store (__atomic_store_ptr, &__atomic_store_tmp, (MO)); \
39b2468c JM	127	})
	128
	129	#define atomic_store(PTR, VAL) \
	130	atomic_store_explicit (PTR, VAL, __ATOMIC_SEQ_CST)
	131
	132
	133	#define atomic_load_explicit(PTR, MO) \
	134	__extension__ \
	135	({ \
38b7bc7f	136	__auto_type __atomic_load_ptr = (PTR); \
768ce4f0	137	__typeof__ ((void)0, *__atomic_load_ptr) __atomic_load_tmp; \
38b7bc7f	138	__atomic_load (__atomic_load_ptr, &__atomic_load_tmp, (MO)); \
39b2468c JM	139	__atomic_load_tmp; \
	140	})
	141
	142	#define atomic_load(PTR) atomic_load_explicit (PTR, __ATOMIC_SEQ_CST)
	143
	144
	145	#define atomic_exchange_explicit(PTR, VAL, MO) \
	146	__extension__ \
	147	({ \
38b7bc7f	148	__auto_type __atomic_exchange_ptr = (PTR); \
768ce4f0 MU	149	__typeof__ ((void)0, *__atomic_exchange_ptr) __atomic_exchange_val = (VAL); \
768ce4f0 MU	150	__typeof__ ((void)0, *__atomic_exchange_ptr) __atomic_exchange_tmp; \
38b7bc7f	151	__atomic_exchange (__atomic_exchange_ptr, &__atomic_exchange_val, \
39b2468c JM	152	&__atomic_exchange_tmp, (MO)); \
	153	__atomic_exchange_tmp; \
	154	})
	155
	156	#define atomic_exchange(PTR, VAL) \
	157	atomic_exchange_explicit (PTR, VAL, __ATOMIC_SEQ_CST)
	158
	159
	160	#define atomic_compare_exchange_strong_explicit(PTR, VAL, DES, SUC, FAIL) \
	161	__extension__ \
	162	({ \
38b7bc7f	163	__auto_type __atomic_compare_exchange_ptr = (PTR); \
768ce4f0	164	__typeof__ ((void)0, *__atomic_compare_exchange_ptr) __atomic_compare_exchange_tmp \
38b7bc7f JM	165	= (DES); \
38b7bc7f JM	166	__atomic_compare_exchange (__atomic_compare_exchange_ptr, (VAL), \
39b2468c JM	167	&__atomic_compare_exchange_tmp, 0, \
	168	(SUC), (FAIL)); \
	169	})
	170
	171	#define atomic_compare_exchange_strong(PTR, VAL, DES) \
	172	atomic_compare_exchange_strong_explicit (PTR, VAL, DES, __ATOMIC_SEQ_CST, \
	173	__ATOMIC_SEQ_CST)
	174
	175	#define atomic_compare_exchange_weak_explicit(PTR, VAL, DES, SUC, FAIL) \
	176	__extension__ \
	177	({ \
38b7bc7f	178	__auto_type __atomic_compare_exchange_ptr = (PTR); \
768ce4f0	179	__typeof__ ((void)0, *__atomic_compare_exchange_ptr) __atomic_compare_exchange_tmp \
38b7bc7f JM	180	= (DES); \
38b7bc7f JM	181	__atomic_compare_exchange (__atomic_compare_exchange_ptr, (VAL), \
39b2468c JM	182	&__atomic_compare_exchange_tmp, 1, \
	183	(SUC), (FAIL)); \
	184	})
	185
	186	#define atomic_compare_exchange_weak(PTR, VAL, DES) \
	187	atomic_compare_exchange_weak_explicit (PTR, VAL, DES, __ATOMIC_SEQ_CST, \
	188	__ATOMIC_SEQ_CST)
	189
	190
	191
	192	#define atomic_fetch_add(PTR, VAL) __atomic_fetch_add ((PTR), (VAL), \
	193	__ATOMIC_SEQ_CST)
	194	#define atomic_fetch_add_explicit(PTR, VAL, MO) \
	195	__atomic_fetch_add ((PTR), (VAL), (MO))
	196
	197	#define atomic_fetch_sub(PTR, VAL) __atomic_fetch_sub ((PTR), (VAL), \
	198	__ATOMIC_SEQ_CST)
	199	#define atomic_fetch_sub_explicit(PTR, VAL, MO) \
	200	__atomic_fetch_sub ((PTR), (VAL), (MO))
	201
	202	#define atomic_fetch_or(PTR, VAL) __atomic_fetch_or ((PTR), (VAL), \
	203	__ATOMIC_SEQ_CST)
	204	#define atomic_fetch_or_explicit(PTR, VAL, MO) \
	205	__atomic_fetch_or ((PTR), (VAL), (MO))
	206
	207	#define atomic_fetch_xor(PTR, VAL) __atomic_fetch_xor ((PTR), (VAL), \
	208	__ATOMIC_SEQ_CST)
	209	#define atomic_fetch_xor_explicit(PTR, VAL, MO) \
	210	__atomic_fetch_xor ((PTR), (VAL), (MO))
	211
	212	#define atomic_fetch_and(PTR, VAL) __atomic_fetch_and ((PTR), (VAL), \
	213	__ATOMIC_SEQ_CST)
	214	#define atomic_fetch_and_explicit(PTR, VAL, MO) \
	215	__atomic_fetch_and ((PTR), (VAL), (MO))
	216
	217
	218	typedef _Atomic struct
	219	{
	220	#if __GCC_ATOMIC_TEST_AND_SET_TRUEVAL == 1
	221	_Bool __val;
	222	#else
	223	unsigned char __val;
	224	#endif
	225	} atomic_flag;
	226
	227	#define ATOMIC_FLAG_INIT { 0 }
	228
	229
c29c36ad	230	extern _Bool atomic_flag_test_and_set (volatile atomic_flag *);
39b2468c JM	231	#define atomic_flag_test_and_set(PTR) \
39b2468c JM	232	__atomic_test_and_set ((PTR), __ATOMIC_SEQ_CST)
c29c36ad JM	233	extern _Bool atomic_flag_test_and_set_explicit (volatile atomic_flag *,
c29c36ad JM	234	memory_order);
39b2468c JM	235	#define atomic_flag_test_and_set_explicit(PTR, MO) \
	236	__atomic_test_and_set ((PTR), (MO))
	237
c29c36ad	238	extern void atomic_flag_clear (volatile atomic_flag *);
39b2468c	239	#define atomic_flag_clear(PTR) __atomic_clear ((PTR), __ATOMIC_SEQ_CST)
c29c36ad	240	extern void atomic_flag_clear_explicit (volatile atomic_flag *, memory_order);
39b2468c JM	241	#define atomic_flag_clear_explicit(PTR, MO) __atomic_clear ((PTR), (MO))
	242
	243	#endif /* _STDATOMIC_H */