992 lines
28 KiB
C++
992 lines
28 KiB
C++
/* Atomics for OctaSTD. Supports GCC/Clang and possibly MSVC.
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*
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* This file is part of OctaSTD. See COPYING.md for futher information.
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*/
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#ifndef OSTD_ATOMIC_HH
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#define OSTD_ATOMIC_HH
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#include <stdint.h>
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#include <stddef.h>
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#include "ostd/types.hh"
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#include "ostd/type_traits.hh"
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namespace ostd {
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enum class MemoryOrder {
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relaxed = 0,
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consume,
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acquire,
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release,
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acq_rel,
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seq_cst
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};
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namespace detail {
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template<typename T>
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struct AtomicBase {
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AtomicBase() {}
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explicit AtomicBase(T v): p_value(v) {}
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T p_value;
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};
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template<typename T>
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T atomic_create();
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template<typename T, typename U>
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EnableIf<sizeof(T()->value = atomic_create<U>()), char>
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test_atomic_assignable(int);
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template<typename T, typename U>
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int test_atomic_assignable(...);
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template<typename T, typename U>
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constexpr bool CanAtomicAssign =
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(sizeof(test_atomic_assignable<T, U>(1)) == sizeof(char));
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template<typename T>
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static inline EnableIf<
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CanAtomicAssign<AtomicBase<T> volatile *, T>
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> atomic_init(AtomicBase<T> volatile *a, T v) {
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a->p_value = v;
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}
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template<typename T>
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static inline EnableIf<
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!CanAtomicAssign<AtomicBase<T> volatile *, T> &&
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CanAtomicAssign<AtomicBase<T> *, T>
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> atomic_init(AtomicBase<T> volatile *a, T v) {
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char volatile *to = reinterpret_cast<char volatile *>(&a->p_value);
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char volatile *end = to + sizeof(T);
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char *from = reinterpret_cast<char *>(&v);
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while (to != end) {
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*to++ =*from++;
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}
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}
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template<typename T>
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static inline void atomic_init(AtomicBase<T> *a, T v) {
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a->p_value = v;
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}
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}
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/* GCC, Clang support
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*
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* libc++ used for reference
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*/
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#ifdef __GNUC__
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static constexpr Size AtomicBoolLockFree = __GCC_ATOMIC_BOOL_LOCK_FREE;
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static constexpr Size AtomicCharLockFree = __GCC_ATOMIC_CHAR_LOCK_FREE;
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static constexpr Size AtomicChar16LockFree = __GCC_ATOMIC_CHAR16_T_LOCK_FREE;
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static constexpr Size AtomicChar32LockFree = __GCC_ATOMIC_CHAR32_T_LOCK_FREE;
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static constexpr Size AtomicWcharLockFree = __GCC_ATOMIC_WCHAR_T_LOCK_FREE;
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static constexpr Size AtomicShortLockFree = __GCC_ATOMIC_SHORT_LOCK_FREE;
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static constexpr Size AtomicIntLockFree = __GCC_ATOMIC_INT_LOCK_FREE;
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static constexpr Size AtomicLongLockFree = __GCC_ATOMIC_LONG_LOCK_FREE;
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static constexpr Size AtomicLlongLockFree = __GCC_ATOMIC_LLONG_LOCK_FREE;
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static constexpr Size AtomicPointerLockFree = __GCC_ATOMIC_POINTER_LOCK_FREE;
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namespace detail {
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static inline constexpr int to_gcc_order(MemoryOrder ord) {
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return (
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((ord == MemoryOrder::relaxed) ? __ATOMIC_RELAXED :
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((ord == MemoryOrder::acquire) ? __ATOMIC_ACQUIRE :
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((ord == MemoryOrder::release) ? __ATOMIC_RELEASE :
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((ord == MemoryOrder::seq_cst) ? __ATOMIC_SEQ_CST :
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((ord == MemoryOrder::acq_rel) ? __ATOMIC_ACQ_REL :
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__ATOMIC_CONSUME)))))
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);
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}
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static inline constexpr int to_gcc_failure_order(MemoryOrder ord) {
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return (
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((ord == MemoryOrder::relaxed) ? __ATOMIC_RELAXED :
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((ord == MemoryOrder::acquire) ? __ATOMIC_ACQUIRE :
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((ord == MemoryOrder::release) ? __ATOMIC_RELAXED :
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((ord == MemoryOrder::seq_cst) ? __ATOMIC_SEQ_CST :
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((ord == MemoryOrder::acq_rel) ? __ATOMIC_ACQUIRE :
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__ATOMIC_CONSUME)))))
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);
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}
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static inline void atomic_thread_fence(MemoryOrder ord) {
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__atomic_thread_fence(to_gcc_order(ord));
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}
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static inline void atomic_signal_fence(MemoryOrder ord) {
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__atomic_signal_fence(to_gcc_order(ord));
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}
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static inline bool atomic_is_lock_free(Size size) {
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/* return __atomic_is_lock_free(size, 0); cannot be used on some platforms */
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return size <= sizeof(void *);
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}
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template<typename T>
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static inline void atomic_store(
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AtomicBase<T> volatile *a, T v, MemoryOrder ord
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) {
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__atomic_store(&a->p_value, &v, to_gcc_order(ord));
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}
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template<typename T>
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static inline void atomic_store(AtomicBase<T> *a,T v, MemoryOrder ord) {
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__atomic_store(&a->p_value, &v, to_gcc_order(ord));
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}
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template<typename T>
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static inline T atomic_load(AtomicBase<T> volatile *a, MemoryOrder ord) {
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T r;
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__atomic_load(&a->p_value, &r, to_gcc_order(ord));
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return r;
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}
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template<typename T>
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static inline T atomic_load(AtomicBase<T> *a, MemoryOrder ord) {
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T r;
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__atomic_load(&a->p_value, &r, to_gcc_order(ord));
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return r;
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}
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template<typename T>
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static inline T atomic_exchange(AtomicBase<T> volatile *a,
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T v, MemoryOrder ord) {
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T r;
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__atomic_exchange(&a->p_value, &v, &r, to_gcc_order(ord));
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return r;
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}
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template<typename T>
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static inline T atomic_exchange(AtomicBase<T> *a, T v, MemoryOrder ord) {
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T r;
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__atomic_exchange(&a->p_value, &v, &r, to_gcc_order(ord));
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return r;
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}
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template<typename T>
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static inline bool atomic_compare_exchange_strong(
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AtomicBase<T> volatile *a, T *expected, T v,
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MemoryOrder success, MemoryOrder failure
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) {
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return __atomic_compare_exchange(
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&a->p_value, expected, &v, false,
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to_gcc_order(success), to_gcc_failure_order(failure)
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);
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}
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template<typename T>
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static inline bool atomic_compare_exchange_strong(
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AtomicBase<T> *a, T *expected, T v,
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MemoryOrder success, MemoryOrder failure
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) {
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return __atomic_compare_exchange(
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&a->p_value, expected, &v, false,
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to_gcc_order(success), to_gcc_failure_order(failure)
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);
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}
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template<typename T>
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static inline bool atomic_compare_exchange_weak(
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AtomicBase<T> volatile *a, T *expected, T v,
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MemoryOrder success, MemoryOrder failure
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) {
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return __atomic_compare_exchange(
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&a->p_value, expected, &v, true,
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to_gcc_order(success), to_gcc_failure_order(failure)
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);
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}
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template<typename T>
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static inline bool atomic_compare_exchange_weak(
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AtomicBase<T> *a, T *expected, T v,
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MemoryOrder success, MemoryOrder failure
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) {
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return __atomic_compare_exchange(
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&a->p_value, expected, &v, true,
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to_gcc_order(success), to_gcc_failure_order(failure)
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);
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}
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template<typename T>
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struct SkipAmt { static constexpr Size value = 1; };
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template<typename T>
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struct SkipAmt<T *> { static constexpr Size value = sizeof(T); };
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template<typename T>
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struct SkipAmt<T[]> {};
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template<typename T, Size N>
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struct SkipAmt<T[N]> {};
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template<typename T, typename U>
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static inline T atomic_fetch_add(
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AtomicBase<T> volatile *a, U d, MemoryOrder ord
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) {
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return __atomic_fetch_add(
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&a->p_value, d * SkipAmt<T>::value, to_gcc_order(ord)
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);
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}
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template<typename T, typename U>
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static inline T atomic_fetch_add(
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AtomicBase<T> *a, U d, MemoryOrder ord
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) {
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return __atomic_fetch_add(
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&a->p_value, d * SkipAmt<T>::value, to_gcc_order(ord)
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);
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}
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template<typename T, typename U>
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static inline T atomic_fetch_sub(
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AtomicBase<T> volatile *a, U d, MemoryOrder ord
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) {
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return __atomic_fetch_sub(
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&a->p_value, d * SkipAmt<T>::value, to_gcc_order(ord)
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);
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}
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template<typename T, typename U>
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static inline T atomic_fetch_sub(
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AtomicBase<T> *a, U d, MemoryOrder ord
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) {
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return __atomic_fetch_sub(
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&a->p_value, d * SkipAmt<T>::value, to_gcc_order(ord)
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);
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}
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template<typename T>
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static inline T atomic_fetch_and(
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AtomicBase<T> volatile *a, T pattern, MemoryOrder ord
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) {
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return __atomic_fetch_and(&a->p_value, pattern, to_gcc_order(ord));
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}
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template<typename T>
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static inline T atomic_fetch_and(
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AtomicBase<T> *a, T pattern, MemoryOrder ord
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) {
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return __atomic_fetch_and(&a->p_value, pattern, to_gcc_order(ord));
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}
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template<typename T>
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static inline T atomic_fetch_or(
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AtomicBase<T> volatile *a, T pattern, MemoryOrder ord
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) {
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return __atomic_fetch_or(&a->p_value, pattern, to_gcc_order(ord));
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}
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template<typename T>
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static inline T atomic_fetch_or(
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AtomicBase<T> *a, T pattern, MemoryOrder ord
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) {
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return __atomic_fetch_or(&a->p_value, pattern, to_gcc_order(ord));
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}
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template<typename T>
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static inline T atomic_fetch_xor(
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AtomicBase<T> volatile *a, T pattern, MemoryOrder ord
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) {
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return __atomic_fetch_xor(&a->p_value, pattern, to_gcc_order(ord));
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}
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template<typename T>
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static inline T atomic_fetch_xor(
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AtomicBase<T> *a, T pattern, MemoryOrder ord
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) {
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return __atomic_fetch_xor(&a->p_value, pattern, to_gcc_order(ord));
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}
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} /* namespace detail */
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#else
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# error Unsupported compiler
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#endif
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template <typename T>
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inline T kill_dependency(T v) {
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return v;
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}
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namespace detail {
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template<typename T, bool = IsIntegral<T> && !IsSame<T, bool>>
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struct Atomic {
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mutable AtomicBase<T> p_a;
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Atomic() = default;
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constexpr Atomic(T v): p_a(v) {}
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Atomic(Atomic const &) = delete;
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Atomic &operator=(Atomic const &) = delete;
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Atomic &operator=(Atomic const &) volatile = delete;
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bool is_lock_free() const volatile {
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return atomic_is_lock_free(sizeof(T));
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}
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bool is_lock_free() const {
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return atomic_is_lock_free(sizeof(T));
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}
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void store(T v, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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atomic_store(&p_a, v, ord);
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}
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void store(T v, MemoryOrder ord = MemoryOrder::seq_cst) {
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atomic_store(&p_a, v, ord);
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}
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T load(MemoryOrder ord = MemoryOrder::seq_cst) const volatile {
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return atomic_load(&p_a, ord);
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}
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T load(MemoryOrder ord = MemoryOrder::seq_cst) const {
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return atomic_load(&p_a, ord);
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}
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operator T() const volatile { return load(); }
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operator T() const { return load(); }
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T exchange(T v, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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return atomic_exchange(&p_a, v, ord);
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}
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T exchange(T v, MemoryOrder ord = MemoryOrder::seq_cst) {
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return atomic_exchange(&p_a, v, ord);
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}
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bool compare_exchange_weak(
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T &e, T v, MemoryOrder s, MemoryOrder f
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) volatile {
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return atomic_compare_exchange_weak(&p_a, &e, v, s, f);
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}
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bool compare_exchange_weak(T &e, T v, MemoryOrder s, MemoryOrder f) {
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return atomic_compare_exchange_weak(&p_a, &e, v, s, f);
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}
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bool compare_exchange_strong(
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T &e, T v, MemoryOrder s, MemoryOrder f
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) volatile {
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return atomic_compare_exchange_strong(&p_a, &e, v, s, f);
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}
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bool compare_exchange_strong(T &e, T v, MemoryOrder s, MemoryOrder f) {
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return atomic_compare_exchange_strong(&p_a, &e, v, s, f);
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}
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bool compare_exchange_weak(
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T &e, T v, MemoryOrder ord = MemoryOrder::seq_cst
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) volatile {
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return atomic_compare_exchange_weak(&p_a, &e, v, ord, ord);
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}
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bool compare_exchange_weak(
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T &e, T v, MemoryOrder ord = MemoryOrder::seq_cst
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) {
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return atomic_compare_exchange_weak(&p_a, &e, v, ord, ord);
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}
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bool compare_exchange_strong(
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T &e, T v, MemoryOrder ord = MemoryOrder::seq_cst
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) volatile {
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return atomic_compare_exchange_strong(&p_a, &e, v, ord, ord);
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}
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bool compare_exchange_strong(
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T &e, T v, MemoryOrder ord = MemoryOrder::seq_cst
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) {
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return atomic_compare_exchange_strong(&p_a, &e, v, ord, ord);
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}
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};
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template<typename T>
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struct Atomic<T, true>: Atomic<T, false> {
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using Base = Atomic<T, false>;
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Atomic() = default;
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constexpr Atomic(T v): Base(v) {}
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T fetch_add(T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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return atomic_fetch_add(&this->p_a, op, ord);
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}
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T fetch_add(T op, MemoryOrder ord = MemoryOrder::seq_cst) {
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return atomic_fetch_add(&this->p_a, op, ord);
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}
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T fetch_sub(T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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return atomic_fetch_sub(&this->p_a, op, ord);
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}
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T fetch_sub(T op, MemoryOrder ord = MemoryOrder::seq_cst) {
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return atomic_fetch_sub(&this->p_a, op, ord);
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}
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T fetch_and(T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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return atomic_fetch_and(&this->p_a, op, ord);
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}
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T fetch_and(T op, MemoryOrder ord = MemoryOrder::seq_cst) {
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return atomic_fetch_and(&this->p_a, op, ord);
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}
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T fetch_or(T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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return atomic_fetch_or(&this->p_a, op, ord);
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}
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T fetch_or(T op, MemoryOrder ord = MemoryOrder::seq_cst) {
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return atomic_fetch_or(&this->p_a, op, ord);
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}
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T fetch_xor(T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
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return atomic_fetch_xor(&this->p_a, op, ord);
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}
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T fetch_xor(T op, MemoryOrder ord = MemoryOrder::seq_cst) {
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return atomic_fetch_xor(&this->p_a, op, ord);
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}
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T operator++(int) volatile { return fetch_add(T(1)); }
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T operator++(int) { return fetch_add(T(1)); }
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T operator--(int) volatile { return fetch_sub(T(1)); }
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T operator--(int) { return fetch_sub(T(1)); }
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T operator++( ) volatile { return fetch_add(T(1)) + T(1); }
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T operator++( ) { return fetch_add(T(1)) + T(1); }
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T operator--( ) volatile { return fetch_sub(T(1)) - T(1); }
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T operator--( ) { return fetch_sub(T(1)) - T(1); }
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T operator+=(T op) volatile { return fetch_add(op) + op; }
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T operator+=(T op) { return fetch_add(op) + op; }
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T operator-=(T op) volatile { return fetch_sub(op) - op; }
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T operator-=(T op) { return fetch_sub(op) - op; }
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T operator&=(T op) volatile { return fetch_and(op) & op; }
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T operator&=(T op) { return fetch_and(op) & op; }
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T operator|=(T op) volatile { return fetch_or (op) | op; }
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T operator|=(T op) { return fetch_or (op) | op; }
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T operator^=(T op) volatile { return fetch_xor(op) ^ op; }
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T operator^=(T op) { return fetch_xor(op) ^ op; }
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};
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}
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template<typename T>
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struct Atomic: detail::Atomic<T> {
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using Base = detail::Atomic<T>;
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Atomic() = default;
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constexpr Atomic(T v): Base(v) {}
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T operator=(T v) volatile {
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Base::store(v); return v;
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}
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T operator=(T v) {
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Base::store(v); return v;
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}
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};
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template<typename T>
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struct Atomic<T *>: detail::Atomic<T *> {
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using Base = detail::Atomic<T *>;
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Atomic() = default;
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constexpr Atomic(T *v): Base(v) {}
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T *operator=(T *v) volatile {
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Base::store(v); return v;
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}
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T *operator=(T *v) {
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Base::store(v); return v;
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}
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T *fetch_add(Ptrdiff op, MemoryOrder ord = MemoryOrder::seq_cst)
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volatile {
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return detail::atomic_fetch_add(&this->p_a, op, ord);
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}
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T *fetch_add(Ptrdiff op, MemoryOrder ord = MemoryOrder::seq_cst) {
|
|
return detail::atomic_fetch_add(&this->p_a, op, ord);
|
|
}
|
|
|
|
T *fetch_sub(Ptrdiff op, MemoryOrder ord = MemoryOrder::seq_cst)
|
|
volatile {
|
|
return detail::atomic_fetch_sub(&this->p_a, op, ord);
|
|
}
|
|
|
|
T *fetch_sub(Ptrdiff op, MemoryOrder ord = MemoryOrder::seq_cst) {
|
|
return detail::atomic_fetch_sub(&this->p_a, op, ord);
|
|
}
|
|
|
|
|
|
T *operator++(int) volatile { return fetch_add(1); }
|
|
T *operator++(int) { return fetch_add(1); }
|
|
T *operator--(int) volatile { return fetch_sub(1); }
|
|
T *operator--(int) { return fetch_sub(1); }
|
|
T *operator++( ) volatile { return fetch_add(1) + 1; }
|
|
T *operator++( ) { return fetch_add(1) + 1; }
|
|
T *operator--( ) volatile { return fetch_sub(1) - 1; }
|
|
T *operator--( ) { return fetch_sub(1) - 1; }
|
|
|
|
T *operator+=(Ptrdiff op) volatile { return fetch_add(op) + op; }
|
|
T *operator+=(Ptrdiff op) { return fetch_add(op) + op; }
|
|
T *operator-=(Ptrdiff op) volatile { return fetch_sub(op) - op; }
|
|
T *operator-=(Ptrdiff op) { return fetch_sub(op) - op; }
|
|
};
|
|
|
|
template<typename T>
|
|
inline bool atomic_is_lock_free(Atomic<T> const volatile *a) {
|
|
return a->is_lock_free();
|
|
}
|
|
|
|
template<typename T>
|
|
inline bool atomic_is_lock_free(Atomic<T> const *a) {
|
|
return a->is_lock_free();
|
|
}
|
|
|
|
template<typename T>
|
|
inline void atomic_init(Atomic<T> volatile *a, T v) {
|
|
detail::atomic_init(&a->p_a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
inline void atomic_init(Atomic<T> *a, T v) {
|
|
detail::atomic_init(&a->p_a, v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline void atomic_store(Atomic<T> volatile *a, T v) {
|
|
a->store(v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline void atomic_store(Atomic<T> *a, T v) {
|
|
a->store(v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline void atomic_store_explicit(Atomic<T> volatile *a, T v, MemoryOrder ord) {
|
|
a->store(v, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline void atomic_store_explicit(Atomic<T> *a, T v, MemoryOrder ord) {
|
|
a->store(v, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_load(Atomic<T> const volatile *a) {
|
|
return a->load();
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_load(Atomic<T> const *a) {
|
|
return a->load();
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_load_explicit(Atomic<T> const volatile *a, MemoryOrder ord) {
|
|
return a->load(ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_load_explicit(Atomic<T> const *a, MemoryOrder ord) {
|
|
return a->load(ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_exchange(Atomic<T> volatile *a, T v) {
|
|
return a->exchange(v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_exchange(Atomic<T> *a, T v) {
|
|
return a->exchange(v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_exchange_explicit(Atomic<T> volatile *a, T v, MemoryOrder ord) {
|
|
return a->exchange(v, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T atomic_exchange_explicit(Atomic<T> *a, T v, MemoryOrder ord) {
|
|
return a->exchange(v, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_weak(Atomic<T> volatile *a, T *e, T v) {
|
|
return a->compare_exchange_weak(*e, v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_weak(Atomic<T> *a, T *e, T v) {
|
|
return a->compare_exchange_weak(*e, v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_strong(Atomic<T> volatile *a, T *e, T v) {
|
|
return a->compare_exchange_strong(*e, v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_strong(Atomic<T> *a, T *e, T v) {
|
|
return a->compare_exchange_strong(*e, v);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_weak_explicit(
|
|
Atomic<T> volatile *a, T *e, T v, MemoryOrder s, MemoryOrder f
|
|
) {
|
|
return a->compare_exchange_weak(*e, v, s, f);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_weak_explicit(
|
|
Atomic<T> *a, T *e, T v, MemoryOrder s, MemoryOrder f
|
|
) {
|
|
return a->compare_exchange_weak(*e, v, s, f);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_strong_explicit(
|
|
Atomic<T> volatile *a, T *e, T v, MemoryOrder s, MemoryOrder f
|
|
) {
|
|
return a->compare_exchange_strong(*e, v, s, f);
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool atomic_compare_exchange_strong_explicit(
|
|
Atomic<T> *a, T *e, T v, MemoryOrder s, MemoryOrder f
|
|
) {
|
|
return a->compare_exchange_strong(*e, v, s, f);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_add(
|
|
Atomic<T> volatile *a, T op
|
|
) {
|
|
return a->fetch_add(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_add(
|
|
Atomic<T> *a, T op
|
|
) {
|
|
return a->fetch_add(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_add(Atomic<T *> volatile *a, Ptrdiff op) {
|
|
return a->fetch_add(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_add(Atomic<T *> *a, Ptrdiff op) {
|
|
return a->fetch_add(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_add_explicit(
|
|
Atomic<T> volatile *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_add(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_add_explicit(
|
|
Atomic<T> *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_add(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_add_explicit(
|
|
Atomic<T *> volatile *a, Ptrdiff op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_add(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_add_explicit(
|
|
Atomic<T *> *a, Ptrdiff op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_add(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_sub(
|
|
Atomic<T> volatile *a, T op
|
|
) {
|
|
return a->fetch_sub(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_sub(
|
|
Atomic<T> *a, T op
|
|
) {
|
|
return a->fetch_sub(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_sub(Atomic<T *> volatile *a, Ptrdiff op) {
|
|
return a->fetch_sub(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_sub(Atomic<T *> *a, Ptrdiff op) {
|
|
return a->fetch_sub(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_sub_explicit(
|
|
Atomic<T> volatile *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_sub(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_sub_explicit(
|
|
Atomic<T> *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_sub(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_sub_explicit(
|
|
Atomic<T *> volatile *a, Ptrdiff op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_sub(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline T *atomic_fetch_sub_explicit(
|
|
Atomic<T *> *a, Ptrdiff op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_sub(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_and(
|
|
Atomic<T> volatile *a, T op
|
|
) {
|
|
return a->fetch_and(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_and(
|
|
Atomic<T> *a, T op
|
|
) {
|
|
return a->fetch_and(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_and_explicit(
|
|
Atomic<T> volatile *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_and(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_and_explicit(
|
|
Atomic<T> *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_and(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_or(
|
|
Atomic<T> volatile *a, T op
|
|
) {
|
|
return a->fetch_or(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_or(
|
|
Atomic<T> *a, T op
|
|
) {
|
|
return a->fetch_or(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_or_explicit(
|
|
Atomic<T> volatile *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_or(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_or_explicit(
|
|
Atomic<T> *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_or(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_xor(
|
|
Atomic<T> volatile *a, T op
|
|
) {
|
|
return a->fetch_xor(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_xor(
|
|
Atomic<T> *a, T op
|
|
) {
|
|
return a->fetch_xor(op);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_xor_explicit(
|
|
Atomic<T> volatile *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_xor(op, ord);
|
|
}
|
|
|
|
template <typename T>
|
|
inline EnableIf<IsIntegral<T> && !IsSame<T, bool>, T> atomic_fetch_xor_explicit(
|
|
Atomic<T> *a, T op, MemoryOrder ord
|
|
) {
|
|
return a->fetch_xor(op, ord);
|
|
}
|
|
|
|
struct AtomicFlag {
|
|
detail::AtomicBase<bool> p_a;
|
|
|
|
AtomicFlag() = default;
|
|
|
|
AtomicFlag(bool b): p_a(b) {}
|
|
|
|
AtomicFlag(AtomicFlag const &) = delete;
|
|
|
|
AtomicFlag &operator=(AtomicFlag const &) = delete;
|
|
AtomicFlag &operator=(AtomicFlag const &) volatile = delete;
|
|
|
|
bool test_and_set(MemoryOrder ord = MemoryOrder::seq_cst) volatile {
|
|
return detail::atomic_exchange(&p_a, true, ord);
|
|
}
|
|
|
|
bool test_and_set(MemoryOrder ord = MemoryOrder::seq_cst) {
|
|
return detail::atomic_exchange(&p_a, true, ord);
|
|
}
|
|
|
|
void clear(MemoryOrder ord = MemoryOrder::seq_cst) volatile {
|
|
detail::atomic_store(&p_a, false, ord);
|
|
}
|
|
|
|
void clear(MemoryOrder ord = MemoryOrder::seq_cst) {
|
|
detail::atomic_store(&p_a, false, ord);
|
|
}
|
|
};
|
|
|
|
inline bool atomic_flag_test_and_set(AtomicFlag volatile *a) {
|
|
return a->test_and_set();
|
|
}
|
|
|
|
inline bool atomic_flag_test_and_set(AtomicFlag *a) {
|
|
return a->test_and_set();
|
|
}
|
|
|
|
inline bool atomic_flag_test_and_set_explicit(
|
|
AtomicFlag volatile *a, MemoryOrder ord
|
|
) {
|
|
return a->test_and_set(ord);
|
|
}
|
|
|
|
inline bool atomic_flag_test_and_set_explicit(AtomicFlag *a, MemoryOrder ord) {
|
|
return a->test_and_set(ord);
|
|
}
|
|
|
|
inline void atomic_flag_clear(AtomicFlag volatile *a) {
|
|
a->clear();
|
|
}
|
|
|
|
inline void atomic_flag_clear(AtomicFlag *a) {
|
|
a->clear();
|
|
}
|
|
|
|
inline void atomic_flag_clear_explicit(AtomicFlag volatile *a, MemoryOrder ord) {
|
|
a->clear(ord);
|
|
}
|
|
|
|
inline void atomic_flag_clear_explicit(AtomicFlag *a, MemoryOrder ord) {
|
|
a->clear(ord);
|
|
}
|
|
|
|
inline void atomic_thread_fence(MemoryOrder ord) {
|
|
detail::atomic_thread_fence(ord);
|
|
}
|
|
|
|
inline void atomic_signal_fence(MemoryOrder ord) {
|
|
detail::atomic_signal_fence(ord);
|
|
}
|
|
|
|
using AtomicBool = Atomic<bool>;
|
|
using AtomicChar = Atomic<char>;
|
|
using AtomicShort = Atomic<short>;
|
|
using AtomicInt = Atomic<int>;
|
|
using AtomicLong = Atomic<long>;
|
|
using AtomicSbyte = Atomic<sbyte>;
|
|
using AtomicByte = Atomic<byte>;
|
|
using AtomicUshort = Atomic<ushort>;
|
|
using AtomicUint = Atomic<uint>;
|
|
using AtomicUlong = Atomic<ulong>;
|
|
using AtomicLlong = Atomic<llong>;
|
|
using AtomicUllong = Atomic<ullong>;
|
|
|
|
using AtomicChar16 = Atomic<Char16>;
|
|
using AtomicChar32 = Atomic<Char32>;
|
|
using AtomicWchar = Atomic<Wchar>;
|
|
|
|
using AtomicPtrdiff = Atomic<Ptrdiff>;
|
|
using AtomicSize = Atomic<Size>;
|
|
|
|
using AtomicIntmax = Atomic<Intmax>;
|
|
using AtomicUintmax = Atomic<Uintmax>;
|
|
|
|
using AtomicIntptr = Atomic<Intptr>;
|
|
using AtomicUintptr = Atomic<Uintptr>;
|
|
|
|
using AtomicInt8 = Atomic<Int8>;
|
|
using AtomicInt16 = Atomic<Int16>;
|
|
using AtomicInt32 = Atomic<Int32>;
|
|
using AtomicInt64 = Atomic<Int64>;
|
|
|
|
using AtomicUint8 = Atomic<Uint8>;
|
|
using AtomicUint16 = Atomic<Uint16>;
|
|
using AtomicUint32 = Atomic<Uint32>;
|
|
using AtomicUint64 = Atomic<Uint64>;
|
|
|
|
using AtomicIntLeast8 = Atomic<IntLeast8>;
|
|
using AtomicIntLeast16 = Atomic<IntLeast16>;
|
|
using AtomicIntLeast32 = Atomic<IntLeast32>;
|
|
using AtomicIntLeast64 = Atomic<IntLeast64>;
|
|
|
|
using AtomicUintLeast8 = Atomic<UintLeast8>;
|
|
using AtomicUintLeast16 = Atomic<UintLeast16>;
|
|
using AtomicUintLeast32 = Atomic<UintLeast32>;
|
|
using AtomicUintLeast64 = Atomic<UintLeast64>;
|
|
|
|
using AtomicIntFast8 = Atomic<IntFast8>;
|
|
using AtomicIntFast16 = Atomic<IntFast16>;
|
|
using AtomicIntFast32 = Atomic<IntFast32>;
|
|
using AtomicIntFast64 = Atomic<IntFast64>;
|
|
|
|
using AtomicUintFast8 = Atomic<UintFast8>;
|
|
using AtomicUintFast16 = Atomic<UintFast16>;
|
|
using AtomicUintFast32 = Atomic<UintFast32>;
|
|
using AtomicUintFast64 = Atomic<UintFast64>;
|
|
|
|
#define ATOMIC_FLAG_INIT {false}
|
|
#define ATOMIC_VAR_INIT(v) {v}
|
|
|
|
}
|
|
|
|
#endif
|