Namespace
Varianti

atomic_load, atomic_load_explicit

Da cppreference.com.
< c‎ | atomic

 
 
Atomic operazioni di biblioteca
Tipi
Original:
Types
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memory_order
atomic_flag
Macro
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Macros
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ATOMIC_***_LOCK_FREE
ATOMIC_FLAG_INIT
ATOMIC_VAR_INIT
kill_dependency
Funzioni
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Functions
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atomic_flag_test_and_set
atomic_flag_clear
atomic_init
atomic_is_lock_free
atomic_store
atomic_load
atomic_exchange
atomic_compare_exchange
atomic_fetch_add
atomic_fetch_sub
atomic_fetch_or
atomic_fetch_xor
atomic_fetch_and
atomic_thread_fence
atomic_signal_fence
 
Defined in header <stdatomic.h>
C atomic_load( volatile A* obj );
(1)
C atomic_load_explicit( volatile A* obj, memory_order order );
(2)
Atomicamente carichi e restituisce il valore corrente della variabile atomica puntata da obj. L'operazione è atomica operazione di lettura.
Original:
Atomically loads and returns the current value of the atomic variable pointed to by obj. The operation is atomic read operation.
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La prima memoria versione ordini accessi secondo memory_order_seq_cst, la seconda memoria versione ordini accessi secondo order. order deve essere uno dei memory_order_relaxed, memory_order_consume, memory_order_acquire o memory_order_seq_cst. In caso contrario, il comportamento non è definito.
Original:
The first version orders memory accesses according to memory_order_seq_cst, the second version orders memory accesses according to order. order must be one of memory_order_relaxed, memory_order_consume, memory_order_acquire or memory_order_seq_cst. Otherwise the behavior is undefined.
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Questo è un funzione generica definita per ogni tipologia di oggetto atomici. A è il tipo di oggetti atomici, C è il non-atomico tipo corrispondente al A.
Original:
This is a funzione generica defined for all atomic object types. A is the type of an atomic object, C is the non-atomic type corresponding to A.
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[modifica] Parametri

obj -
puntatore all'oggetto atomica per accedere
Original:
pointer to the atomic object to access
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order -
la sincronizzazione memoria ordinazione per questa operazione
Original:
the memory synchronization ordering for this operation
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[modifica] Valore di ritorno

Il valore corrente della variabile atomica puntata da obj.
Original:
The current value of the atomic variable pointed to by obj.
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[modifica] Vedi anche

memorizza un valore in un oggetto atomico
Original:
stores a value in an atomic object
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(funzione) [edit]
C++ documentation for atomic_load, atomic_load_explicit