2 //===--------------------------- atomic -----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is distributed under the University of Illinois Open Source
7 // License. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_ATOMIC
12 #define _LIBCPP_ATOMIC
20 // order and consistency
22 typedef enum memory_order
25 memory_order_consume, // load-consume
26 memory_order_acquire, // load-acquire
27 memory_order_release, // store-release
28 memory_order_acq_rel, // store-release load-acquire
29 memory_order_seq_cst // store-release load-acquire
32 template <class T> T kill_dependency(T y) noexcept;
36 #define ATOMIC_BOOL_LOCK_FREE unspecified
37 #define ATOMIC_CHAR_LOCK_FREE unspecified
38 #define ATOMIC_CHAR16_T_LOCK_FREE unspecified
39 #define ATOMIC_CHAR32_T_LOCK_FREE unspecified
40 #define ATOMIC_WCHAR_T_LOCK_FREE unspecified
41 #define ATOMIC_SHORT_LOCK_FREE unspecified
42 #define ATOMIC_INT_LOCK_FREE unspecified
43 #define ATOMIC_LONG_LOCK_FREE unspecified
44 #define ATOMIC_LLONG_LOCK_FREE unspecified
45 #define ATOMIC_POINTER_LOCK_FREE unspecified
47 // flag type and operations
49 typedef struct atomic_flag
51 bool test_and_set(memory_order m = memory_order_seq_cst) volatile noexcept;
52 bool test_and_set(memory_order m = memory_order_seq_cst) noexcept;
53 void clear(memory_order m = memory_order_seq_cst) volatile noexcept;
54 void clear(memory_order m = memory_order_seq_cst) noexcept;
55 atomic_flag() noexcept = default;
56 atomic_flag(const atomic_flag&) = delete;
57 atomic_flag& operator=(const atomic_flag&) = delete;
58 atomic_flag& operator=(const atomic_flag&) volatile = delete;
62 atomic_flag_test_and_set(volatile atomic_flag* obj) noexcept;
65 atomic_flag_test_and_set(atomic_flag* obj) noexcept;
68 atomic_flag_test_and_set_explicit(volatile atomic_flag* obj,
69 memory_order m) noexcept;
72 atomic_flag_test_and_set_explicit(atomic_flag* obj, memory_order m) noexcept;
75 atomic_flag_clear(volatile atomic_flag* obj) noexcept;
78 atomic_flag_clear(atomic_flag* obj) noexcept;
81 atomic_flag_clear_explicit(volatile atomic_flag* obj, memory_order m) noexcept;
84 atomic_flag_clear_explicit(atomic_flag* obj, memory_order m) noexcept;
86 #define ATOMIC_FLAG_INIT see below
87 #define ATOMIC_VAR_INIT(value) see below
92 bool is_lock_free() const volatile noexcept;
93 bool is_lock_free() const noexcept;
94 void store(T desr, memory_order m = memory_order_seq_cst) volatile noexcept;
95 void store(T desr, memory_order m = memory_order_seq_cst) noexcept;
96 T load(memory_order m = memory_order_seq_cst) const volatile noexcept;
97 T load(memory_order m = memory_order_seq_cst) const noexcept;
98 operator T() const volatile noexcept;
99 operator T() const noexcept;
100 T exchange(T desr, memory_order m = memory_order_seq_cst) volatile noexcept;
101 T exchange(T desr, memory_order m = memory_order_seq_cst) noexcept;
102 bool compare_exchange_weak(T& expc, T desr,
103 memory_order s, memory_order f) volatile noexcept;
104 bool compare_exchange_weak(T& expc, T desr, memory_order s, memory_order f) noexcept;
105 bool compare_exchange_strong(T& expc, T desr,
106 memory_order s, memory_order f) volatile noexcept;
107 bool compare_exchange_strong(T& expc, T desr,
108 memory_order s, memory_order f) noexcept;
109 bool compare_exchange_weak(T& expc, T desr,
110 memory_order m = memory_order_seq_cst) volatile noexcept;
111 bool compare_exchange_weak(T& expc, T desr,
112 memory_order m = memory_order_seq_cst) noexcept;
113 bool compare_exchange_strong(T& expc, T desr,
114 memory_order m = memory_order_seq_cst) volatile noexcept;
115 bool compare_exchange_strong(T& expc, T desr,
116 memory_order m = memory_order_seq_cst) noexcept;
118 atomic() noexcept = default;
119 constexpr atomic(T desr) noexcept;
120 atomic(const atomic&) = delete;
121 atomic& operator=(const atomic&) = delete;
122 atomic& operator=(const atomic&) volatile = delete;
123 T operator=(T) volatile noexcept;
124 T operator=(T) noexcept;
128 struct atomic<integral>
130 bool is_lock_free() const volatile noexcept;
131 bool is_lock_free() const noexcept;
132 void store(integral desr, memory_order m = memory_order_seq_cst) volatile noexcept;
133 void store(integral desr, memory_order m = memory_order_seq_cst) noexcept;
134 integral load(memory_order m = memory_order_seq_cst) const volatile noexcept;
135 integral load(memory_order m = memory_order_seq_cst) const noexcept;
136 operator integral() const volatile noexcept;
137 operator integral() const noexcept;
138 integral exchange(integral desr,
139 memory_order m = memory_order_seq_cst) volatile noexcept;
140 integral exchange(integral desr, memory_order m = memory_order_seq_cst) noexcept;
141 bool compare_exchange_weak(integral& expc, integral desr,
142 memory_order s, memory_order f) volatile noexcept;
143 bool compare_exchange_weak(integral& expc, integral desr,
144 memory_order s, memory_order f) noexcept;
145 bool compare_exchange_strong(integral& expc, integral desr,
146 memory_order s, memory_order f) volatile noexcept;
147 bool compare_exchange_strong(integral& expc, integral desr,
148 memory_order s, memory_order f) noexcept;
149 bool compare_exchange_weak(integral& expc, integral desr,
150 memory_order m = memory_order_seq_cst) volatile noexcept;
151 bool compare_exchange_weak(integral& expc, integral desr,
152 memory_order m = memory_order_seq_cst) noexcept;
153 bool compare_exchange_strong(integral& expc, integral desr,
154 memory_order m = memory_order_seq_cst) volatile noexcept;
155 bool compare_exchange_strong(integral& expc, integral desr,
156 memory_order m = memory_order_seq_cst) noexcept;
159 fetch_add(integral op, memory_order m = memory_order_seq_cst) volatile noexcept;
160 integral fetch_add(integral op, memory_order m = memory_order_seq_cst) noexcept;
162 fetch_sub(integral op, memory_order m = memory_order_seq_cst) volatile noexcept;
163 integral fetch_sub(integral op, memory_order m = memory_order_seq_cst) noexcept;
165 fetch_and(integral op, memory_order m = memory_order_seq_cst) volatile noexcept;
166 integral fetch_and(integral op, memory_order m = memory_order_seq_cst) noexcept;
168 fetch_or(integral op, memory_order m = memory_order_seq_cst) volatile noexcept;
169 integral fetch_or(integral op, memory_order m = memory_order_seq_cst) noexcept;
171 fetch_xor(integral op, memory_order m = memory_order_seq_cst) volatile noexcept;
172 integral fetch_xor(integral op, memory_order m = memory_order_seq_cst) noexcept;
174 atomic() noexcept = default;
175 constexpr atomic(integral desr) noexcept;
176 atomic(const atomic&) = delete;
177 atomic& operator=(const atomic&) = delete;
178 atomic& operator=(const atomic&) volatile = delete;
179 integral operator=(integral desr) volatile noexcept;
180 integral operator=(integral desr) noexcept;
182 integral operator++(int) volatile noexcept;
183 integral operator++(int) noexcept;
184 integral operator--(int) volatile noexcept;
185 integral operator--(int) noexcept;
186 integral operator++() volatile noexcept;
187 integral operator++() noexcept;
188 integral operator--() volatile noexcept;
189 integral operator--() noexcept;
190 integral operator+=(integral op) volatile noexcept;
191 integral operator+=(integral op) noexcept;
192 integral operator-=(integral op) volatile noexcept;
193 integral operator-=(integral op) noexcept;
194 integral operator&=(integral op) volatile noexcept;
195 integral operator&=(integral op) noexcept;
196 integral operator|=(integral op) volatile noexcept;
197 integral operator|=(integral op) noexcept;
198 integral operator^=(integral op) volatile noexcept;
199 integral operator^=(integral op) noexcept;
205 bool is_lock_free() const volatile noexcept;
206 bool is_lock_free() const noexcept;
207 void store(T* desr, memory_order m = memory_order_seq_cst) volatile noexcept;
208 void store(T* desr, memory_order m = memory_order_seq_cst) noexcept;
209 T* load(memory_order m = memory_order_seq_cst) const volatile noexcept;
210 T* load(memory_order m = memory_order_seq_cst) const noexcept;
211 operator T*() const volatile noexcept;
212 operator T*() const noexcept;
213 T* exchange(T* desr, memory_order m = memory_order_seq_cst) volatile noexcept;
214 T* exchange(T* desr, memory_order m = memory_order_seq_cst) noexcept;
215 bool compare_exchange_weak(T*& expc, T* desr,
216 memory_order s, memory_order f) volatile noexcept;
217 bool compare_exchange_weak(T*& expc, T* desr,
218 memory_order s, memory_order f) noexcept;
219 bool compare_exchange_strong(T*& expc, T* desr,
220 memory_order s, memory_order f) volatile noexcept;
221 bool compare_exchange_strong(T*& expc, T* desr,
222 memory_order s, memory_order f) noexcept;
223 bool compare_exchange_weak(T*& expc, T* desr,
224 memory_order m = memory_order_seq_cst) volatile noexcept;
225 bool compare_exchange_weak(T*& expc, T* desr,
226 memory_order m = memory_order_seq_cst) noexcept;
227 bool compare_exchange_strong(T*& expc, T* desr,
228 memory_order m = memory_order_seq_cst) volatile noexcept;
229 bool compare_exchange_strong(T*& expc, T* desr,
230 memory_order m = memory_order_seq_cst) noexcept;
231 T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile noexcept;
232 T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) noexcept;
233 T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile noexcept;
234 T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) noexcept;
236 atomic() noexcept = default;
237 constexpr atomic(T* desr) noexcept;
238 atomic(const atomic&) = delete;
239 atomic& operator=(const atomic&) = delete;
240 atomic& operator=(const atomic&) volatile = delete;
242 T* operator=(T*) volatile noexcept;
243 T* operator=(T*) noexcept;
244 T* operator++(int) volatile noexcept;
245 T* operator++(int) noexcept;
246 T* operator--(int) volatile noexcept;
247 T* operator--(int) noexcept;
248 T* operator++() volatile noexcept;
249 T* operator++() noexcept;
250 T* operator--() volatile noexcept;
251 T* operator--() noexcept;
252 T* operator+=(ptrdiff_t op) volatile noexcept;
253 T* operator+=(ptrdiff_t op) noexcept;
254 T* operator-=(ptrdiff_t op) volatile noexcept;
255 T* operator-=(ptrdiff_t op) noexcept;
261 atomic_is_lock_free(const volatile atomic<T>* obj) noexcept;
265 atomic_is_lock_free(const atomic<T>* obj) noexcept;
269 atomic_init(volatile atomic<T>* obj, T desr) noexcept;
273 atomic_init(atomic<T>* obj, T desr) noexcept;
277 atomic_store(volatile atomic<T>* obj, T desr) noexcept;
281 atomic_store(atomic<T>* obj, T desr) noexcept;
285 atomic_store_explicit(volatile atomic<T>* obj, T desr, memory_order m) noexcept;
289 atomic_store_explicit(atomic<T>* obj, T desr, memory_order m) noexcept;
293 atomic_load(const volatile atomic<T>* obj) noexcept;
297 atomic_load(const atomic<T>* obj) noexcept;
301 atomic_load_explicit(const volatile atomic<T>* obj, memory_order m) noexcept;
305 atomic_load_explicit(const atomic<T>* obj, memory_order m) noexcept;
309 atomic_exchange(volatile atomic<T>* obj, T desr) noexcept;
313 atomic_exchange(atomic<T>* obj, T desr) noexcept;
317 atomic_exchange_explicit(volatile atomic<T>* obj, T desr, memory_order m) noexcept;
321 atomic_exchange_explicit(atomic<T>* obj, T desr, memory_order m) noexcept;
325 atomic_compare_exchange_weak(volatile atomic<T>* obj, T* expc, T desr) noexcept;
329 atomic_compare_exchange_weak(atomic<T>* obj, T* expc, T desr) noexcept;
333 atomic_compare_exchange_strong(volatile atomic<T>* obj, T* expc, T desr) noexcept;
337 atomic_compare_exchange_strong(atomic<T>* obj, T* expc, T desr) noexcept;
341 atomic_compare_exchange_weak_explicit(volatile atomic<T>* obj, T* expc,
343 memory_order s, memory_order f) noexcept;
347 atomic_compare_exchange_weak_explicit(atomic<T>* obj, T* expc, T desr,
348 memory_order s, memory_order f) noexcept;
352 atomic_compare_exchange_strong_explicit(volatile atomic<T>* obj,
354 memory_order s, memory_order f) noexcept;
358 atomic_compare_exchange_strong_explicit(atomic<T>* obj, T* expc,
360 memory_order s, memory_order f) noexcept;
362 template <class Integral>
364 atomic_fetch_add(volatile atomic<Integral>* obj, Integral op) noexcept;
366 template <class Integral>
368 atomic_fetch_add(atomic<Integral>* obj, Integral op) noexcept;
370 template <class Integral>
372 atomic_fetch_add_explicit(volatile atomic<Integral>* obj, Integral op,
373 memory_order m) noexcept;
374 template <class Integral>
376 atomic_fetch_add_explicit(atomic<Integral>* obj, Integral op,
377 memory_order m) noexcept;
378 template <class Integral>
380 atomic_fetch_sub(volatile atomic<Integral>* obj, Integral op) noexcept;
382 template <class Integral>
384 atomic_fetch_sub(atomic<Integral>* obj, Integral op) noexcept;
386 template <class Integral>
388 atomic_fetch_sub_explicit(volatile atomic<Integral>* obj, Integral op,
389 memory_order m) noexcept;
390 template <class Integral>
392 atomic_fetch_sub_explicit(atomic<Integral>* obj, Integral op,
393 memory_order m) noexcept;
394 template <class Integral>
396 atomic_fetch_and(volatile atomic<Integral>* obj, Integral op) noexcept;
398 template <class Integral>
400 atomic_fetch_and(atomic<Integral>* obj, Integral op) noexcept;
402 template <class Integral>
404 atomic_fetch_and_explicit(volatile atomic<Integral>* obj, Integral op,
405 memory_order m) noexcept;
406 template <class Integral>
408 atomic_fetch_and_explicit(atomic<Integral>* obj, Integral op,
409 memory_order m) noexcept;
410 template <class Integral>
412 atomic_fetch_or(volatile atomic<Integral>* obj, Integral op) noexcept;
414 template <class Integral>
416 atomic_fetch_or(atomic<Integral>* obj, Integral op) noexcept;
418 template <class Integral>
420 atomic_fetch_or_explicit(volatile atomic<Integral>* obj, Integral op,
421 memory_order m) noexcept;
422 template <class Integral>
424 atomic_fetch_or_explicit(atomic<Integral>* obj, Integral op,
425 memory_order m) noexcept;
426 template <class Integral>
428 atomic_fetch_xor(volatile atomic<Integral>* obj, Integral op) noexcept;
430 template <class Integral>
432 atomic_fetch_xor(atomic<Integral>* obj, Integral op) noexcept;
434 template <class Integral>
436 atomic_fetch_xor_explicit(volatile atomic<Integral>* obj, Integral op,
437 memory_order m) noexcept;
438 template <class Integral>
440 atomic_fetch_xor_explicit(atomic<Integral>* obj, Integral op,
441 memory_order m) noexcept;
445 atomic_fetch_add(volatile atomic<T*>* obj, ptrdiff_t op) noexcept;
449 atomic_fetch_add(atomic<T*>* obj, ptrdiff_t op) noexcept;
453 atomic_fetch_add_explicit(volatile atomic<T*>* obj, ptrdiff_t op,
454 memory_order m) noexcept;
457 atomic_fetch_add_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m) noexcept;
461 atomic_fetch_sub(volatile atomic<T*>* obj, ptrdiff_t op) noexcept;
465 atomic_fetch_sub(atomic<T*>* obj, ptrdiff_t op) noexcept;
469 atomic_fetch_sub_explicit(volatile atomic<T*>* obj, ptrdiff_t op,
470 memory_order m) noexcept;
473 atomic_fetch_sub_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m) noexcept;
475 // Atomics for standard typedef types
477 typedef atomic<bool> atomic_bool;
478 typedef atomic<char> atomic_char;
479 typedef atomic<signed char> atomic_schar;
480 typedef atomic<unsigned char> atomic_uchar;
481 typedef atomic<short> atomic_short;
482 typedef atomic<unsigned short> atomic_ushort;
483 typedef atomic<int> atomic_int;
484 typedef atomic<unsigned int> atomic_uint;
485 typedef atomic<long> atomic_long;
486 typedef atomic<unsigned long> atomic_ulong;
487 typedef atomic<long long> atomic_llong;
488 typedef atomic<unsigned long long> atomic_ullong;
489 typedef atomic<char16_t> atomic_char16_t;
490 typedef atomic<char32_t> atomic_char32_t;
491 typedef atomic<wchar_t> atomic_wchar_t;
493 typedef atomic<int_least8_t> atomic_int_least8_t;
494 typedef atomic<uint_least8_t> atomic_uint_least8_t;
495 typedef atomic<int_least16_t> atomic_int_least16_t;
496 typedef atomic<uint_least16_t> atomic_uint_least16_t;
497 typedef atomic<int_least32_t> atomic_int_least32_t;
498 typedef atomic<uint_least32_t> atomic_uint_least32_t;
499 typedef atomic<int_least64_t> atomic_int_least64_t;
500 typedef atomic<uint_least64_t> atomic_uint_least64_t;
502 typedef atomic<int_fast8_t> atomic_int_fast8_t;
503 typedef atomic<uint_fast8_t> atomic_uint_fast8_t;
504 typedef atomic<int_fast16_t> atomic_int_fast16_t;
505 typedef atomic<uint_fast16_t> atomic_uint_fast16_t;
506 typedef atomic<int_fast32_t> atomic_int_fast32_t;
507 typedef atomic<uint_fast32_t> atomic_uint_fast32_t;
508 typedef atomic<int_fast64_t> atomic_int_fast64_t;
509 typedef atomic<uint_fast64_t> atomic_uint_fast64_t;
511 typedef atomic<intptr_t> atomic_intptr_t;
512 typedef atomic<uintptr_t> atomic_uintptr_t;
513 typedef atomic<size_t> atomic_size_t;
514 typedef atomic<ptrdiff_t> atomic_ptrdiff_t;
515 typedef atomic<intmax_t> atomic_intmax_t;
516 typedef atomic<uintmax_t> atomic_uintmax_t;
520 void atomic_thread_fence(memory_order m) noexcept;
521 void atomic_signal_fence(memory_order m) noexcept;
530 #include <type_traits>
532 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
533 #pragma GCC system_header
536 _LIBCPP_BEGIN_NAMESPACE_STD
538 #if !__has_feature(cxx_atomic)
539 #error <atomic> is not implemented
542 typedef enum memory_order
544 memory_order_relaxed, memory_order_consume, memory_order_acquire,
545 memory_order_release, memory_order_acq_rel, memory_order_seq_cst
549 inline _LIBCPP_INLINE_VISIBILITY
551 kill_dependency(_Tp __y) _NOEXCEPT
558 template <class _Tp, bool = is_integral<_Tp>::value && !is_same<_Tp, bool>::value>
559 struct __atomic_base // false
561 mutable _Atomic(_Tp) __a_;
563 _LIBCPP_INLINE_VISIBILITY
564 bool is_lock_free() const volatile _NOEXCEPT
565 {return __c11_atomic_is_lock_free(sizeof(_Tp));}
566 _LIBCPP_INLINE_VISIBILITY
567 bool is_lock_free() const _NOEXCEPT
568 {return __c11_atomic_is_lock_free(sizeof(_Tp));}
569 _LIBCPP_INLINE_VISIBILITY
570 void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
571 {__c11_atomic_store(&__a_, __d, __m);}
572 _LIBCPP_INLINE_VISIBILITY
573 void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT
574 {__c11_atomic_store(&__a_, __d, __m);}
575 _LIBCPP_INLINE_VISIBILITY
576 _Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
577 {return __c11_atomic_load(&__a_, __m);}
578 _LIBCPP_INLINE_VISIBILITY
579 _Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT
580 {return __c11_atomic_load(&__a_, __m);}
581 _LIBCPP_INLINE_VISIBILITY
582 operator _Tp() const volatile _NOEXCEPT {return load();}
583 _LIBCPP_INLINE_VISIBILITY
584 operator _Tp() const _NOEXCEPT {return load();}
585 _LIBCPP_INLINE_VISIBILITY
586 _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
587 {return __c11_atomic_exchange(&__a_, __d, __m);}
588 _LIBCPP_INLINE_VISIBILITY
589 _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT
590 {return __c11_atomic_exchange(&__a_, __d, __m);}
591 _LIBCPP_INLINE_VISIBILITY
592 bool compare_exchange_weak(_Tp& __e, _Tp __d,
593 memory_order __s, memory_order __f) volatile _NOEXCEPT
594 {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);}
595 _LIBCPP_INLINE_VISIBILITY
596 bool compare_exchange_weak(_Tp& __e, _Tp __d,
597 memory_order __s, memory_order __f) _NOEXCEPT
598 {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);}
599 _LIBCPP_INLINE_VISIBILITY
600 bool compare_exchange_strong(_Tp& __e, _Tp __d,
601 memory_order __s, memory_order __f) volatile _NOEXCEPT
602 {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);}
603 _LIBCPP_INLINE_VISIBILITY
604 bool compare_exchange_strong(_Tp& __e, _Tp __d,
605 memory_order __s, memory_order __f) _NOEXCEPT
606 {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);}
607 _LIBCPP_INLINE_VISIBILITY
608 bool compare_exchange_weak(_Tp& __e, _Tp __d,
609 memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
610 {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);}
611 _LIBCPP_INLINE_VISIBILITY
612 bool compare_exchange_weak(_Tp& __e, _Tp __d,
613 memory_order __m = memory_order_seq_cst) _NOEXCEPT
614 {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);}
615 _LIBCPP_INLINE_VISIBILITY
616 bool compare_exchange_strong(_Tp& __e, _Tp __d,
617 memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
618 {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);}
619 _LIBCPP_INLINE_VISIBILITY
620 bool compare_exchange_strong(_Tp& __e, _Tp __d,
621 memory_order __m = memory_order_seq_cst) _NOEXCEPT
622 {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);}
624 _LIBCPP_INLINE_VISIBILITY
625 #ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
626 __atomic_base() _NOEXCEPT = default;
628 __atomic_base() _NOEXCEPT : __a_() {}
629 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
631 _LIBCPP_INLINE_VISIBILITY
632 _LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __a_(__d) {}
633 #ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
634 __atomic_base(const __atomic_base&) = delete;
635 __atomic_base& operator=(const __atomic_base&) = delete;
636 __atomic_base& operator=(const __atomic_base&) volatile = delete;
637 #else // _LIBCPP_HAS_NO_DELETED_FUNCTIONS
639 __atomic_base(const __atomic_base&);
640 __atomic_base& operator=(const __atomic_base&);
641 __atomic_base& operator=(const __atomic_base&) volatile;
642 #endif // _LIBCPP_HAS_NO_DELETED_FUNCTIONS
648 struct __atomic_base<_Tp, true>
649 : public __atomic_base<_Tp, false>
651 typedef __atomic_base<_Tp, false> __base;
652 _LIBCPP_INLINE_VISIBILITY
653 __atomic_base() _NOEXCEPT _LIBCPP_DEFAULT
654 _LIBCPP_INLINE_VISIBILITY
655 _LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __base(__d) {}
657 _LIBCPP_INLINE_VISIBILITY
658 _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
659 {return __c11_atomic_fetch_add(&this->__a_, __op, __m);}
660 _LIBCPP_INLINE_VISIBILITY
661 _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
662 {return __c11_atomic_fetch_add(&this->__a_, __op, __m);}
663 _LIBCPP_INLINE_VISIBILITY
664 _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
665 {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);}
666 _LIBCPP_INLINE_VISIBILITY
667 _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
668 {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);}
669 _LIBCPP_INLINE_VISIBILITY
670 _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
671 {return __c11_atomic_fetch_and(&this->__a_, __op, __m);}
672 _LIBCPP_INLINE_VISIBILITY
673 _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
674 {return __c11_atomic_fetch_and(&this->__a_, __op, __m);}
675 _LIBCPP_INLINE_VISIBILITY
676 _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
677 {return __c11_atomic_fetch_or(&this->__a_, __op, __m);}
678 _LIBCPP_INLINE_VISIBILITY
679 _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
680 {return __c11_atomic_fetch_or(&this->__a_, __op, __m);}
681 _LIBCPP_INLINE_VISIBILITY
682 _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
683 {return __c11_atomic_fetch_xor(&this->__a_, __op, __m);}
684 _LIBCPP_INLINE_VISIBILITY
685 _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
686 {return __c11_atomic_fetch_xor(&this->__a_, __op, __m);}
688 _LIBCPP_INLINE_VISIBILITY
689 _Tp operator++(int) volatile _NOEXCEPT {return fetch_add(_Tp(1));}
690 _LIBCPP_INLINE_VISIBILITY
691 _Tp operator++(int) _NOEXCEPT {return fetch_add(_Tp(1));}
692 _LIBCPP_INLINE_VISIBILITY
693 _Tp operator--(int) volatile _NOEXCEPT {return fetch_sub(_Tp(1));}
694 _LIBCPP_INLINE_VISIBILITY
695 _Tp operator--(int) _NOEXCEPT {return fetch_sub(_Tp(1));}
696 _LIBCPP_INLINE_VISIBILITY
697 _Tp operator++() volatile _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);}
698 _LIBCPP_INLINE_VISIBILITY
699 _Tp operator++() _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);}
700 _LIBCPP_INLINE_VISIBILITY
701 _Tp operator--() volatile _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);}
702 _LIBCPP_INLINE_VISIBILITY
703 _Tp operator--() _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);}
704 _LIBCPP_INLINE_VISIBILITY
705 _Tp operator+=(_Tp __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;}
706 _LIBCPP_INLINE_VISIBILITY
707 _Tp operator+=(_Tp __op) _NOEXCEPT {return fetch_add(__op) + __op;}
708 _LIBCPP_INLINE_VISIBILITY
709 _Tp operator-=(_Tp __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;}
710 _LIBCPP_INLINE_VISIBILITY
711 _Tp operator-=(_Tp __op) _NOEXCEPT {return fetch_sub(__op) - __op;}
712 _LIBCPP_INLINE_VISIBILITY
713 _Tp operator&=(_Tp __op) volatile _NOEXCEPT {return fetch_and(__op) & __op;}
714 _LIBCPP_INLINE_VISIBILITY
715 _Tp operator&=(_Tp __op) _NOEXCEPT {return fetch_and(__op) & __op;}
716 _LIBCPP_INLINE_VISIBILITY
717 _Tp operator|=(_Tp __op) volatile _NOEXCEPT {return fetch_or(__op) | __op;}
718 _LIBCPP_INLINE_VISIBILITY
719 _Tp operator|=(_Tp __op) _NOEXCEPT {return fetch_or(__op) | __op;}
720 _LIBCPP_INLINE_VISIBILITY
721 _Tp operator^=(_Tp __op) volatile _NOEXCEPT {return fetch_xor(__op) ^ __op;}
722 _LIBCPP_INLINE_VISIBILITY
723 _Tp operator^=(_Tp __op) _NOEXCEPT {return fetch_xor(__op) ^ __op;}
730 : public __atomic_base<_Tp>
732 typedef __atomic_base<_Tp> __base;
733 _LIBCPP_INLINE_VISIBILITY
734 atomic() _NOEXCEPT _LIBCPP_DEFAULT
735 _LIBCPP_INLINE_VISIBILITY
736 _LIBCPP_CONSTEXPR atomic(_Tp __d) _NOEXCEPT : __base(__d) {}
738 _LIBCPP_INLINE_VISIBILITY
739 _Tp operator=(_Tp __d) volatile _NOEXCEPT
740 {__base::store(__d); return __d;}
741 _LIBCPP_INLINE_VISIBILITY
742 _Tp operator=(_Tp __d) _NOEXCEPT
743 {__base::store(__d); return __d;}
750 : public __atomic_base<_Tp*>
752 typedef __atomic_base<_Tp*> __base;
753 _LIBCPP_INLINE_VISIBILITY
754 atomic() _NOEXCEPT _LIBCPP_DEFAULT
755 _LIBCPP_INLINE_VISIBILITY
756 _LIBCPP_CONSTEXPR atomic(_Tp* __d) _NOEXCEPT : __base(__d) {}
758 _LIBCPP_INLINE_VISIBILITY
759 _Tp* operator=(_Tp* __d) volatile _NOEXCEPT
760 {__base::store(__d); return __d;}
761 _LIBCPP_INLINE_VISIBILITY
762 _Tp* operator=(_Tp* __d) _NOEXCEPT
763 {__base::store(__d); return __d;}
765 _LIBCPP_INLINE_VISIBILITY
766 _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst)
768 {return __c11_atomic_fetch_add(&this->__a_, __op, __m);}
769 _LIBCPP_INLINE_VISIBILITY
770 _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
771 {return __c11_atomic_fetch_add(&this->__a_, __op, __m);}
772 _LIBCPP_INLINE_VISIBILITY
773 _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst)
775 {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);}
776 _LIBCPP_INLINE_VISIBILITY
777 _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
778 {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);}
780 _LIBCPP_INLINE_VISIBILITY
781 _Tp* operator++(int) volatile _NOEXCEPT {return fetch_add(1);}
782 _LIBCPP_INLINE_VISIBILITY
783 _Tp* operator++(int) _NOEXCEPT {return fetch_add(1);}
784 _LIBCPP_INLINE_VISIBILITY
785 _Tp* operator--(int) volatile _NOEXCEPT {return fetch_sub(1);}
786 _LIBCPP_INLINE_VISIBILITY
787 _Tp* operator--(int) _NOEXCEPT {return fetch_sub(1);}
788 _LIBCPP_INLINE_VISIBILITY
789 _Tp* operator++() volatile _NOEXCEPT {return fetch_add(1) + 1;}
790 _LIBCPP_INLINE_VISIBILITY
791 _Tp* operator++() _NOEXCEPT {return fetch_add(1) + 1;}
792 _LIBCPP_INLINE_VISIBILITY
793 _Tp* operator--() volatile _NOEXCEPT {return fetch_sub(1) - 1;}
794 _LIBCPP_INLINE_VISIBILITY
795 _Tp* operator--() _NOEXCEPT {return fetch_sub(1) - 1;}
796 _LIBCPP_INLINE_VISIBILITY
797 _Tp* operator+=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;}
798 _LIBCPP_INLINE_VISIBILITY
799 _Tp* operator+=(ptrdiff_t __op) _NOEXCEPT {return fetch_add(__op) + __op;}
800 _LIBCPP_INLINE_VISIBILITY
801 _Tp* operator-=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;}
802 _LIBCPP_INLINE_VISIBILITY
803 _Tp* operator-=(ptrdiff_t __op) _NOEXCEPT {return fetch_sub(__op) - __op;}
806 // atomic_is_lock_free
809 inline _LIBCPP_INLINE_VISIBILITY
811 atomic_is_lock_free(const volatile atomic<_Tp>* __o) _NOEXCEPT
813 return __o->is_lock_free();
817 inline _LIBCPP_INLINE_VISIBILITY
819 atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT
821 return __o->is_lock_free();
827 inline _LIBCPP_INLINE_VISIBILITY
829 atomic_init(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT
831 __c11_atomic_init(&__o->__a_, __d);
835 inline _LIBCPP_INLINE_VISIBILITY
837 atomic_init(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT
839 __c11_atomic_init(&__o->__a_, __d);
845 inline _LIBCPP_INLINE_VISIBILITY
847 atomic_store(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT
853 inline _LIBCPP_INLINE_VISIBILITY
855 atomic_store(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT
860 // atomic_store_explicit
863 inline _LIBCPP_INLINE_VISIBILITY
865 atomic_store_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT
867 __o->store(__d, __m);
871 inline _LIBCPP_INLINE_VISIBILITY
873 atomic_store_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT
875 __o->store(__d, __m);
881 inline _LIBCPP_INLINE_VISIBILITY
883 atomic_load(const volatile atomic<_Tp>* __o) _NOEXCEPT
889 inline _LIBCPP_INLINE_VISIBILITY
891 atomic_load(const atomic<_Tp>* __o) _NOEXCEPT
896 // atomic_load_explicit
899 inline _LIBCPP_INLINE_VISIBILITY
901 atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT
903 return __o->load(__m);
907 inline _LIBCPP_INLINE_VISIBILITY
909 atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT
911 return __o->load(__m);
917 inline _LIBCPP_INLINE_VISIBILITY
919 atomic_exchange(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT
921 return __o->exchange(__d);
925 inline _LIBCPP_INLINE_VISIBILITY
927 atomic_exchange(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT
929 return __o->exchange(__d);
932 // atomic_exchange_explicit
935 inline _LIBCPP_INLINE_VISIBILITY
937 atomic_exchange_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT
939 return __o->exchange(__d, __m);
943 inline _LIBCPP_INLINE_VISIBILITY
945 atomic_exchange_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT
947 return __o->exchange(__d, __m);
950 // atomic_compare_exchange_weak
953 inline _LIBCPP_INLINE_VISIBILITY
955 atomic_compare_exchange_weak(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT
957 return __o->compare_exchange_weak(*__e, __d);
961 inline _LIBCPP_INLINE_VISIBILITY
963 atomic_compare_exchange_weak(atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT
965 return __o->compare_exchange_weak(*__e, __d);
968 // atomic_compare_exchange_strong
971 inline _LIBCPP_INLINE_VISIBILITY
973 atomic_compare_exchange_strong(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT
975 return __o->compare_exchange_strong(*__e, __d);
979 inline _LIBCPP_INLINE_VISIBILITY
981 atomic_compare_exchange_strong(atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT
983 return __o->compare_exchange_strong(*__e, __d);
986 // atomic_compare_exchange_weak_explicit
989 inline _LIBCPP_INLINE_VISIBILITY
991 atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, _Tp* __e,
993 memory_order __s, memory_order __f) _NOEXCEPT
995 return __o->compare_exchange_weak(*__e, __d, __s, __f);
999 inline _LIBCPP_INLINE_VISIBILITY
1001 atomic_compare_exchange_weak_explicit(atomic<_Tp>* __o, _Tp* __e, _Tp __d,
1002 memory_order __s, memory_order __f) _NOEXCEPT
1004 return __o->compare_exchange_weak(*__e, __d, __s, __f);
1007 // atomic_compare_exchange_strong_explicit
1009 template <class _Tp>
1010 inline _LIBCPP_INLINE_VISIBILITY
1012 atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o,
1014 memory_order __s, memory_order __f) _NOEXCEPT
1016 return __o->compare_exchange_strong(*__e, __d, __s, __f);
1019 template <class _Tp>
1020 inline _LIBCPP_INLINE_VISIBILITY
1022 atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, _Tp* __e,
1024 memory_order __s, memory_order __f) _NOEXCEPT
1026 return __o->compare_exchange_strong(*__e, __d, __s, __f);
1031 template <class _Tp>
1032 inline _LIBCPP_INLINE_VISIBILITY
1035 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1038 atomic_fetch_add(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1040 return __o->fetch_add(__op);
1043 template <class _Tp>
1044 inline _LIBCPP_INLINE_VISIBILITY
1047 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1050 atomic_fetch_add(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1052 return __o->fetch_add(__op);
1055 template <class _Tp>
1056 inline _LIBCPP_INLINE_VISIBILITY
1058 atomic_fetch_add(volatile atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT
1060 return __o->fetch_add(__op);
1063 template <class _Tp>
1064 inline _LIBCPP_INLINE_VISIBILITY
1066 atomic_fetch_add(atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT
1068 return __o->fetch_add(__op);
1071 // atomic_fetch_add_explicit
1073 template <class _Tp>
1074 inline _LIBCPP_INLINE_VISIBILITY
1077 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1080 atomic_fetch_add_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1082 return __o->fetch_add(__op, __m);
1085 template <class _Tp>
1086 inline _LIBCPP_INLINE_VISIBILITY
1089 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1092 atomic_fetch_add_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1094 return __o->fetch_add(__op, __m);
1097 template <class _Tp>
1098 inline _LIBCPP_INLINE_VISIBILITY
1100 atomic_fetch_add_explicit(volatile atomic<_Tp*>* __o, ptrdiff_t __op,
1101 memory_order __m) _NOEXCEPT
1103 return __o->fetch_add(__op, __m);
1106 template <class _Tp>
1107 inline _LIBCPP_INLINE_VISIBILITY
1109 atomic_fetch_add_explicit(atomic<_Tp*>* __o, ptrdiff_t __op, memory_order __m) _NOEXCEPT
1111 return __o->fetch_add(__op, __m);
1116 template <class _Tp>
1117 inline _LIBCPP_INLINE_VISIBILITY
1120 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1123 atomic_fetch_sub(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1125 return __o->fetch_sub(__op);
1128 template <class _Tp>
1129 inline _LIBCPP_INLINE_VISIBILITY
1132 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1135 atomic_fetch_sub(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1137 return __o->fetch_sub(__op);
1140 template <class _Tp>
1141 inline _LIBCPP_INLINE_VISIBILITY
1143 atomic_fetch_sub(volatile atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT
1145 return __o->fetch_sub(__op);
1148 template <class _Tp>
1149 inline _LIBCPP_INLINE_VISIBILITY
1151 atomic_fetch_sub(atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT
1153 return __o->fetch_sub(__op);
1156 // atomic_fetch_sub_explicit
1158 template <class _Tp>
1159 inline _LIBCPP_INLINE_VISIBILITY
1162 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1165 atomic_fetch_sub_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1167 return __o->fetch_sub(__op, __m);
1170 template <class _Tp>
1171 inline _LIBCPP_INLINE_VISIBILITY
1174 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1177 atomic_fetch_sub_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1179 return __o->fetch_sub(__op, __m);
1182 template <class _Tp>
1183 inline _LIBCPP_INLINE_VISIBILITY
1185 atomic_fetch_sub_explicit(volatile atomic<_Tp*>* __o, ptrdiff_t __op,
1186 memory_order __m) _NOEXCEPT
1188 return __o->fetch_sub(__op, __m);
1191 template <class _Tp>
1192 inline _LIBCPP_INLINE_VISIBILITY
1194 atomic_fetch_sub_explicit(atomic<_Tp*>* __o, ptrdiff_t __op, memory_order __m) _NOEXCEPT
1196 return __o->fetch_sub(__op, __m);
1201 template <class _Tp>
1202 inline _LIBCPP_INLINE_VISIBILITY
1205 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1208 atomic_fetch_and(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1210 return __o->fetch_and(__op);
1213 template <class _Tp>
1214 inline _LIBCPP_INLINE_VISIBILITY
1217 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1220 atomic_fetch_and(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1222 return __o->fetch_and(__op);
1225 // atomic_fetch_and_explicit
1227 template <class _Tp>
1228 inline _LIBCPP_INLINE_VISIBILITY
1231 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1234 atomic_fetch_and_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1236 return __o->fetch_and(__op, __m);
1239 template <class _Tp>
1240 inline _LIBCPP_INLINE_VISIBILITY
1243 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1246 atomic_fetch_and_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1248 return __o->fetch_and(__op, __m);
1253 template <class _Tp>
1254 inline _LIBCPP_INLINE_VISIBILITY
1257 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1260 atomic_fetch_or(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1262 return __o->fetch_or(__op);
1265 template <class _Tp>
1266 inline _LIBCPP_INLINE_VISIBILITY
1269 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1272 atomic_fetch_or(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1274 return __o->fetch_or(__op);
1277 // atomic_fetch_or_explicit
1279 template <class _Tp>
1280 inline _LIBCPP_INLINE_VISIBILITY
1283 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1286 atomic_fetch_or_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1288 return __o->fetch_or(__op, __m);
1291 template <class _Tp>
1292 inline _LIBCPP_INLINE_VISIBILITY
1295 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1298 atomic_fetch_or_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1300 return __o->fetch_or(__op, __m);
1305 template <class _Tp>
1306 inline _LIBCPP_INLINE_VISIBILITY
1309 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1312 atomic_fetch_xor(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1314 return __o->fetch_xor(__op);
1317 template <class _Tp>
1318 inline _LIBCPP_INLINE_VISIBILITY
1321 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1324 atomic_fetch_xor(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT
1326 return __o->fetch_xor(__op);
1329 // atomic_fetch_xor_explicit
1331 template <class _Tp>
1332 inline _LIBCPP_INLINE_VISIBILITY
1335 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1338 atomic_fetch_xor_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1340 return __o->fetch_xor(__op, __m);
1343 template <class _Tp>
1344 inline _LIBCPP_INLINE_VISIBILITY
1347 is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
1350 atomic_fetch_xor_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT
1352 return __o->fetch_xor(__op, __m);
1355 // flag type and operations
1357 typedef struct atomic_flag
1361 _LIBCPP_INLINE_VISIBILITY
1362 bool test_and_set(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
1363 {return __c11_atomic_exchange(&__a_, true, __m);}
1364 _LIBCPP_INLINE_VISIBILITY
1365 bool test_and_set(memory_order __m = memory_order_seq_cst) _NOEXCEPT
1366 {return __c11_atomic_exchange(&__a_, true, __m);}
1367 _LIBCPP_INLINE_VISIBILITY
1368 void clear(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
1369 {__c11_atomic_store(&__a_, false, __m);}
1370 _LIBCPP_INLINE_VISIBILITY
1371 void clear(memory_order __m = memory_order_seq_cst) _NOEXCEPT
1372 {__c11_atomic_store(&__a_, false, __m);}
1374 _LIBCPP_INLINE_VISIBILITY
1375 #ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1376 atomic_flag() _NOEXCEPT = default;
1378 atomic_flag() _NOEXCEPT : __a_() {}
1379 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1381 _LIBCPP_INLINE_VISIBILITY
1382 atomic_flag(bool __b) _NOEXCEPT : __a_(__b) {}
1384 #ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
1385 atomic_flag(const atomic_flag&) = delete;
1386 atomic_flag& operator=(const atomic_flag&) = delete;
1387 atomic_flag& operator=(const atomic_flag&) volatile = delete;
1388 #else // _LIBCPP_HAS_NO_DELETED_FUNCTIONS
1390 atomic_flag(const atomic_flag&);
1391 atomic_flag& operator=(const atomic_flag&);
1392 atomic_flag& operator=(const atomic_flag&) volatile;
1393 #endif // _LIBCPP_HAS_NO_DELETED_FUNCTIONS
1396 inline _LIBCPP_INLINE_VISIBILITY
1398 atomic_flag_test_and_set(volatile atomic_flag* __o) _NOEXCEPT
1400 return __o->test_and_set();
1403 inline _LIBCPP_INLINE_VISIBILITY
1405 atomic_flag_test_and_set(atomic_flag* __o) _NOEXCEPT
1407 return __o->test_and_set();
1410 inline _LIBCPP_INLINE_VISIBILITY
1412 atomic_flag_test_and_set_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
1414 return __o->test_and_set(__m);
1417 inline _LIBCPP_INLINE_VISIBILITY
1419 atomic_flag_test_and_set_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT
1421 return __o->test_and_set(__m);
1424 inline _LIBCPP_INLINE_VISIBILITY
1426 atomic_flag_clear(volatile atomic_flag* __o) _NOEXCEPT
1431 inline _LIBCPP_INLINE_VISIBILITY
1433 atomic_flag_clear(atomic_flag* __o) _NOEXCEPT
1438 inline _LIBCPP_INLINE_VISIBILITY
1440 atomic_flag_clear_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
1445 inline _LIBCPP_INLINE_VISIBILITY
1447 atomic_flag_clear_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT
1454 inline _LIBCPP_INLINE_VISIBILITY
1456 atomic_thread_fence(memory_order __m) _NOEXCEPT
1458 __c11_atomic_thread_fence(__m);
1461 inline _LIBCPP_INLINE_VISIBILITY
1463 atomic_signal_fence(memory_order __m) _NOEXCEPT
1465 __c11_atomic_signal_fence(__m);
1468 // Atomics for standard typedef types
1470 typedef atomic<bool> atomic_bool;
1471 typedef atomic<char> atomic_char;
1472 typedef atomic<signed char> atomic_schar;
1473 typedef atomic<unsigned char> atomic_uchar;
1474 typedef atomic<short> atomic_short;
1475 typedef atomic<unsigned short> atomic_ushort;
1476 typedef atomic<int> atomic_int;
1477 typedef atomic<unsigned int> atomic_uint;
1478 typedef atomic<long> atomic_long;
1479 typedef atomic<unsigned long> atomic_ulong;
1480 typedef atomic<long long> atomic_llong;
1481 typedef atomic<unsigned long long> atomic_ullong;
1482 typedef atomic<char16_t> atomic_char16_t;
1483 typedef atomic<char32_t> atomic_char32_t;
1484 typedef atomic<wchar_t> atomic_wchar_t;
1486 typedef atomic<int_least8_t> atomic_int_least8_t;
1487 typedef atomic<uint_least8_t> atomic_uint_least8_t;
1488 typedef atomic<int_least16_t> atomic_int_least16_t;
1489 typedef atomic<uint_least16_t> atomic_uint_least16_t;
1490 typedef atomic<int_least32_t> atomic_int_least32_t;
1491 typedef atomic<uint_least32_t> atomic_uint_least32_t;
1492 typedef atomic<int_least64_t> atomic_int_least64_t;
1493 typedef atomic<uint_least64_t> atomic_uint_least64_t;
1495 typedef atomic<int_fast8_t> atomic_int_fast8_t;
1496 typedef atomic<uint_fast8_t> atomic_uint_fast8_t;
1497 typedef atomic<int_fast16_t> atomic_int_fast16_t;
1498 typedef atomic<uint_fast16_t> atomic_uint_fast16_t;
1499 typedef atomic<int_fast32_t> atomic_int_fast32_t;
1500 typedef atomic<uint_fast32_t> atomic_uint_fast32_t;
1501 typedef atomic<int_fast64_t> atomic_int_fast64_t;
1502 typedef atomic<uint_fast64_t> atomic_uint_fast64_t;
1504 typedef atomic<intptr_t> atomic_intptr_t;
1505 typedef atomic<uintptr_t> atomic_uintptr_t;
1506 typedef atomic<size_t> atomic_size_t;
1507 typedef atomic<ptrdiff_t> atomic_ptrdiff_t;
1508 typedef atomic<intmax_t> atomic_intmax_t;
1509 typedef atomic<uintmax_t> atomic_uintmax_t;
1511 #define ATOMIC_FLAG_INIT {false}
1512 #define ATOMIC_VAR_INIT(__v) {__v}
1514 // lock-free property
1516 #define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
1517 #define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
1518 #define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
1519 #define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
1520 #define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
1521 #define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
1522 #define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
1523 #define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
1524 #define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
1525 #define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
1527 #endif // !__has_feature(cxx_atomic)
1529 _LIBCPP_END_NAMESPACE_STD
1531 #endif // _LIBCPP_ATOMIC