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/* Copyright (C) 2015 Povilas Kanapickas <povilas@radix.lt>
This file is part of cppreference-doc
This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
Unported License. To view a copy of this license, visit
http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to Creative
Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
*/
#ifndef CPPREFERENCE_ATOMIC_H
#define CPPREFERENCE_ATOMIC_H
namespace std {
#if CPPREFERENCE_STDVER>= 2011
enum memory_order {
memory_order_relaxed,
memory_order_consume,
memory_order_acquire,
memory_order_release,
memory_order_acq_rel,
memory_order_seq_cst
};
template<class T>
struct atomic {
atomic() = default;
constexpr atomic(T desired);
atomic(const atomic&) = delete;
T operator=(T desired);
T operator=(T desired) volatile;
atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
bool is_lock_free() const;
bool is_lock_free() const volatile;
void store(T desired, std::memory_order order = std::memory_order_seq_cst);
void store(T desired, std::memory_order order = std::memory_order_seq_cst) volatile;
T load(std::memory_order order = std::memory_order_seq_cst) const;
T load(std::memory_order order = std::memory_order_seq_cst) const volatile;
operator T() const;
operator T() const volatile;
T exchange(T desired, std::memory_order order = std::memory_order_seq_cst);
T exchange(T desired, std::memory_order order = std::memory_order_seq_cst) volatile;
bool compare_exchange_weak(T& expected, T desired,
std::memory_order success,
std::memory_order failure);
bool compare_exchange_weak(T& expected, T desired,
std::memory_order success,
std::memory_order failure) volatile;
bool compare_exchange_weak(T& expected, T desired,
std::memory_order order =
std::memory_order_seq_cst);
bool compare_exchange_weak(T& expected, T desired,
std::memory_order order =
std::memory_order_seq_cst) volatile;
bool compare_exchange_strong(T& expected, T desired,
std::memory_order success,
std::memory_order failure);
bool compare_exchange_strong(T& expected, T desired,
std::memory_order success,
std::memory_order failure) volatile;
bool compare_exchange_strong(T& expected, T desired,
std::memory_order order =
std::memory_order_seq_cst);
bool compare_exchange_strong(T& expected, T desired,
std::memory_order order =
std::memory_order_seq_cst) volatile;
// member of atomic<Integral>
T fetch_add(T arg,
memory_order = std::memory_order_seq_cst);
T fetch_add(T arg,
memory_order = std::memory_order_seq_cst) volatile;
// member of atomic<T*>
T* fetch_add(std::ptrdiff_t arg,
memory_order = std::memory_order_seq_cst);
T* fetch_add(std::ptrdiff_t arg,
memory_order = std::memory_order_seq_cst) volatile;
// member of atomic<Integral>
T fetch_sub(T arg,
memory_order = std::memory_order_seq_cst);
T fetch_sub(T arg,
memory_order = std::memory_order_seq_cst) volatile;
// member of atomic<T*>
T* fetch_sub(std::ptrdiff_t arg,
memory_order = std::memory_order_seq_cst);
T* fetch_sub(std::ptrdiff_t arg,
memory_order = std::memory_order_seq_cst) volatile;
// member of atomic<Integral>
T fetch_and(T arg,
memory_order = std::memory_order_seq_cst);
T fetch_and(T arg,
memory_order = std::memory_order_seq_cst) volatile;
// member of atomic<Integral>
T fetch_or(T arg,
memory_order = std::memory_order_seq_cst);
T fetch_or(T arg,
memory_order = std::memory_order_seq_cst) volatile;
// member of atomic<Integral>
T fetch_xor(T arg,
memory_xorder = std::memory_xorder_seq_cst);
T fetch_xor(T arg,
memory_xorder = std::memory_xorder_seq_cst) volatile;
// member of atomic<Integral>
T operator++();
T operator++() volatile;
T operator++(int);
T operator++(int) volatile;
T operator--();
T operator--() volatile;
T operator--(int);
T operator--(int) volatile;
T operator+=(T arg);
T operator+=(T arg) volatile;
T operator-=(T arg);
T operator-=(T arg) volatile;
T operator&=(T arg);
T operator&=(T arg) volatile;
T operator|=(T arg);
T operator|=(T arg) volatile;
T operator^=(T arg);
T operator^=(T arg) volatile;
// member of atomic<T*>
T* operator++();
T* operator++() volatile;
T* operator++(int);
T* operator++(int) volatile;
T* operator--();
T* operator--() volatile;
T* operator--(int);
T* operator--(int) volatile;
T* operator+=(std::ptrdiff_t arg);
T* operator+=(std::ptrdiff_t arg) volatile;
T* operator-=(std::ptrdiff_t arg);
T* operator-=(std::ptrdiff_t arg) volatile;
};
typedef atomic<bool> atomic_bool;
typedef atomic<char> atomic_char;
typedef atomic<signed char> atomic_schar;
typedef atomic<unsigned char> atomic_uchar;
typedef atomic<short> atomic_short;
typedef atomic<unsigned short> atomic_ushort;
typedef atomic<int> atomic_int;
typedef atomic<unsigned int> atomic_uint;
typedef atomic<long> atomic_long;
typedef atomic<unsigned long> atomic_ulong;
typedef atomic<long long> atomic_llong;
typedef atomic<unsigned long long> atomic_ullong;
typedef atomic<char16_t> atomic_char16_t;
typedef atomic<char32_t> atomic_char32_t;
typedef atomic<wchar_t> atomic_wchar_t;
typedef atomic<int_least8_t> atomic_int_least8_t;
typedef atomic<uint_least8_t> atomic_uint_least8_t;
typedef atomic<int_least16_t> atomic_int_least16_t;
typedef atomic<uint_least16_t> atomic_uint_least16_t;
typedef atomic<int_least32_t> atomic_int_least32_t;
typedef atomic<uint_least32_t> atomic_uint_least32_t;
typedef atomic<int_least64_t> atomic_int_least64_t;
typedef atomic<uint_least64_t> atomic_uint_least64_t;
typedef atomic<int_fast8_t> atomic_int_fast8_t;
typedef atomic<uint_fast8_t> atomic_uint_fast8_t;
typedef atomic<int_fast16_t> atomic_int_fast16_t;
typedef atomic<uint_fast16_t> atomic_uint_fast16_t;
typedef atomic<int_fast32_t> atomic_int_fast32_t;
typedef atomic<uint_fast32_t> atomic_uint_fast32_t;
typedef atomic<int_fast64_t> atomic_int_fast64_t;
typedef atomic<uint_fast64_t> atomic_uint_fast64_t;
typedef atomic<intptr_t> atomic_intptr_t;
typedef atomic<uintptr_t> atomic_uintptr_t;
typedef atomic<size_t> atomic_size_t;
typedef atomic<ptrdiff_t> atomic_ptrdiff_t;
typedef atomic<intmax_t> atomic_intmax_t;
typedef atomic<uintmax_t> atomic_uintmax_t;
template<class T>
bool atomic_is_lock_free(const volatile std::atomic<T>* obj);
template<class T>
bool atomic_is_lock_free(const std::atomic<T>* obj);
template<class T>
void atomic_store(std::atomic<T>* obj, T desr);
template<class T>
void atomic_store(volatile std::atomic<T>* obj, T desr);
template<class T>
void atomic_store_explicit(std::atomic<T>* obj, T desr,
std::memory_order order);
template<class T>
void atomic_store_explicit(volatile std::atomic<T>* obj, T desr,
std::memory_order order);
template<class T>
T atomic_load(const std::atomic<T>* obj);
template<class T>
T atomic_load(const volatile std::atomic<T>* obj);
template<class T>
T atomic_load_explicit(const std::atomic<T>* obj,
std::memory_order order);
template<class T>
T atomic_load_explicit(const volatile std::atomic<T>* obj,
std::memory_order order);
template<class T>
T atomic_exchange(std::atomic<T>* obj, T desr);
template<class T>
T atomic_exchange(volatile std::atomic<T>* obj, T desr);
template<class T>
T atomic_exchange_explicit(std::atomic<T>* obj, T desr,
std::memory_order order);
template<class T>
T atomic_exchange_explicit(volatile std::atomic<T>* obj, T desr,
std::memory_order order);
template<class T>
bool atomic_compare_exchange_weak(std::atomic<T>* obj,
T* expected, T desired);
template<class T>
bool atomic_compare_exchange_weak(volatile std::atomic<T>* obj,
T* expected, T desired);
template<class T>
bool atomic_compare_exchange_strong(std::atomic<T>* obj,
T* expected, T desired);
template<class T>
bool atomic_compare_exchange_strong(volatile std::atomic<T>* obj,
T* expected, T desired);
template<class T>
bool atomic_compare_exchange_weak_explicit(std::atomic<T>* obj,
T* expected, T desired,
std::memory_order succ,
std::memory_order fail);
template<class T>
bool atomic_compare_exchange_weak_explicit(volatile std::atomic<T>* obj,
T* expected, T desired,
std::memory_order succ,
std::memory_order fail);
template<class T>
bool atomic_compare_exchange_strong_explicit(std::atomic<T>* obj,
T* expected, T desired,
std::memory_order succ,
std::memory_order fail);
template<class T>
bool atomic_compare_exchange_strong_explicit(volatile std::atomic<T>* obj,
T* expected, T desired,
std::memory_order succ,
std::memory_order fail);
template<class Integral>
Integral atomic_fetch_add(std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_add(volatile std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_add_explicit(std::atomic<Integral>* obj, Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_add_explicit(volatile std::atomic<Integral>* obj, Integral arg,
std::memory_order order);
template<class T>
T* atomic_fetch_add(std::atomic<T*>* obj, std::ptrdiff_t arg);
template<class T>
T* atomic_fetch_add(volatile std::atomic<T*>* obj, std::ptrdiff_t arg);
template<class T>
T* atomic_fetch_add_explicit(std::atomic<T*>* obj, std::ptrdiff_t arg,
std::memory_order order);
template<class T>
T* atomic_fetch_add_explicit(volatile std::atomic<T*>* obj, std::ptrdiff_t arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_sub(std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_sub(volatile std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_sub_explicit(std::atomic<Integral>* obj, Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_sub_explicit(volatile std::atomic<Integral>* obj, Integral arg,
std::memory_order order);
template<class T>
T* atomic_fetch_sub(std::atomic<T*>* obj, std::ptrdiff_t arg);
template<class T>
T* atomic_fetch_sub(volatile std::atomic<T*>* obj, std::ptrdiff_t arg);
template<class T>
T* atomic_fetch_sub_explicit(std::atomic<T*>* obj, std::ptrdiff_t arg,
std::memory_order order);
template<class T>
T* atomic_fetch_sub_explicit(volatile std::atomic<T*>* obj, std::ptrdiff_t arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_and(std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_and(volatile std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_and_explicit(std::atomic<Integral>* obj,
Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_and_explicit(volatile std::atomic<Integral>* obj,
Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_or(std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_or(volatile std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_or_explicit(std::atomic<Integral>* obj,
Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_or_explicit(volatile std::atomic<Integral>* obj,
Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_xor(std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_xor(volatile std::atomic<Integral>* obj, Integral arg);
template<class Integral>
Integral atomic_fetch_xor_explicit(std::atomic<Integral>* obj,
Integral arg,
std::memory_order order);
template<class Integral>
Integral atomic_fetch_xor_explicit(volatile std::atomic<Integral>* obj,
Integral arg,
std::memory_order order);
class atomic_flag {
public:
atomic_flag();
atomic_flag(const atomic_flag&) = delete;
atomic_flag& operator=(const atomic_flag&) = delete;
atomic_flag& operator=(const atomic_flag&) volatile = delete;
void clear(std::memory_order order = std::memory_order_seq_cst) volatile;
void clear(std::memory_order order = std::memory_order_seq_cst);
bool test_and_set(std::memory_order order = std::memory_order_seq_cst) volatile;
bool test_and_set(std::memory_order order = std::memory_order_seq_cst);
};
bool atomic_flag_test_and_set(volatile std::atomic_flag* p);
bool atomic_flag_test_and_set(std::atomic_flag* p);
bool atomic_flag_test_and_set_explicit(volatile std::atomic_flag* p,
std::memory_order order);
bool atomic_flag_test_and_set_explicit(std::atomic_flag* p,
std::memory_order order);
void atomic_flag_clear(volatile std::atomic_flag* p);
void atomic_flag_clear(std::atomic_flag* p);
void atomic_flag_clear_explicit(volatile std::atomic_flag* p,
std::memory_order order);
void atomic_flag_clear_explicit(std::atomic_flag* p,
std::memory_order order);
void atomic_signal_fence(std::memory_order order);
void atomic_thread_fence(std::memory_order order);
template<class T>
T kill_dependency(T y);
template<class T>
void atomic_init(std::atomic<T>* obj, T desired);
template<class T>
void atomic_init(volatile std::atomic<T>* obj, T desired);
#define ATOMIC_VAR_INIT(value) // impl-defined
#define ATOMIC_FLAG_INIT // impl-defined
#endif // CPPREFERENCE_STDVER>= 2011
} // namespace std
#endif // CPPREFERENCE_ATOMIC_H
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