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std::atomic_flag_clear, std::atomic_flag_clear_explicit

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< cpp‎ | atomic

 
 
Atomare Operationen Bibliothek
Types
Original:
Types
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atomic(C++11)
atomic_is_lock_free(C++11)
Funktionen
Original:
Functions
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atomic_store
atomic_store_explicit
(C++11)
(C++11)
atomic_load
atomic_load_explicit
(C++11)
(C++11)
atomic_exchange
atomic_exchange_explicit
(C++11)
(C++11)
atomic_compare_exchange_weak
atomic_compare_exchange_weak_explicit
atomic_compare_exchange_strong
atomic_compare_exchange_strong_explicit
(C++11)
(C++11)
(C++11)
(C++11)
atomic_fetch_add
atomic_fetch_add_explicit
(C++11)
(C++11)
atomic_fetch_sub
atomic_fetch_sub_explicit
(C++11)
(C++11)
atomic_fetch_and
atomic_fetch_and_explicit
(C++11)
(C++11)
atomic_fetch_or
atomic_fetch_or_explicit
(C++11)
(C++11)
atomic_fetch_xor
atomic_fetch_xor_explicit
(C++11)
(C++11)
Atomic Fahnen
Original:
Atomic flags
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atomic_flag(C++11)
atomic_flag_test_and_set
atomic_flag_test_and_set_explicit
(C++11)
(C++11)
atomic_flag_clear
atomic_flag_clear_explicit
(C++11)
(C++11)
Initialisierung
Original:
Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
Speicher Bestellung
Original:
Memory ordering
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memory_order(C++11)
kill_dependency(C++11)
atomic_thread_fence(C++11)
atomic_signal_fence(C++11)
 
Defined in header <atomic>
void atomic_flag_clear( volatile std::atomic_flag* p );
(1) (seit C++11)
void atomic_flag_clear( std::atomic_flag* p );
(2) (seit C++11)
void atomic_flag_clear_explicit( volatile std::atomic_flag* p,
                                 std::memory_order order )
(3) (seit C++11)
void atomic_flag_clear_explicit( std::atomic_flag* p,
                                 std::memory_order order )
(4) (seit C++11)

Atomically changes the state of a std::atomic_flag pointed to by p to clear (false).

Inhaltsverzeichnis

[Bearbeiten] Parameter

p -
Zeiger auf std::atomic_flag zu erreichen
Original:
pointer to std::atomic_flag to access
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order - the memory sycnhronization ordering for this operation: only std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire, or std::memory_order_seq_cst are permitted.

[Bearbeiten] Rückgabewert

keine .
Original:
none.
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[Bearbeiten] Ausnahmen

noexcept specification:  
noexcept
  (seit C++11)

[Bearbeiten] Mögliche Implementierung

First version
void atomic_flag_clear(volatile std::atomic_flag* p) 
{
    p->clear();
}
Second version
void atomic_flag_clear(std::atomic_flag* p) 
{
    p->clear();
}
Third version
void atomic_flag_clear_explicit(volatile std::atomic_flag* p, 
                                std::memory_order order) 
{
    p->clear(order);
}
Fourth version
void atomic_flag_clear_explicit(std::atomic_flag* p, 
                                std::memory_order order) 
{
    p->clear(order);
}

[Bearbeiten] Siehe auch

Die Lock-freie boolean atomaren Typ
Original:
the lock-free boolean atomic type
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(Klasse) [edit]
atomar setzt das Flag auf true und gibt den vorherigen Wert
Original:
atomically sets the flag to true and returns its previous value
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(Funktion) [edit]
definiert Speicher Bestellung Einschränkungen für den angegebenen atomaren Operation
Original:
defines memory ordering constraints for the given atomic operation
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(typedef) [edit]
C documentation for atomic_flag_clear, atomic_flag_clear_explicit