std::atomic::load

 

C++

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Macros de prueba de característica (C++20)

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Especificaciones técnicas

Índice de símbolos

Bibliotecas externas

 

Biblioteca de operaciones atómicas

Tipos

atomic (C++11)

atomic_ref (C++20)

Funciones

atomic_storeatomic_store_explicit (C++11)(C++11)

atomic_loadatomic_load_explicit (C++11)(C++11)

atomic_exchangeatomic_exchange_explicit (C++11)(C++11)

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit (C++11)(C++11)(C++11)(C++11)

atomic_fetch_addatomic_fetch_add_explicit (C++11)(C++11)

atomic_fetch_subatomic_fetch_sub_explicit (C++11)(C++11)

atomic_fetch_andatomic_fetch_and_explicit (C++11)(C++11)

atomic_fetch_oratomic_fetch_or_explicit (C++11)(C++11)

atomic_fetch_xoratomic_fetch_xor_explicit (C++11)(C++11)

atomic_is_lock_free (C++11)

atomic_waitatomic_wait_explicit (C++20)(C++20)

atomic_notify_one (C++20)

atomic_notify_all (C++20)

Banderas atómicas

atomic_flag (C++11)

atomic_flag_test_and_setatomic_flag_test_and_set_explicit (C++11)(C++11)

atomic_flag_clearatomic_flag_clear_explicit (C++11)(C++11)

atomic_flag_testatomic_flag_test_explicit (C++20)(C++20)

atomic_flag_waitatomic_flag_wait_explicit (C++20)(C++20)

atomic_flag_notify_one (C++20)

atomic_flag_notify_all (C++20)

Inicialización

atomic_init (C++11)(en desuso en C++20)

ATOMIC_VAR_INIT (C++11)(en desuso en C++20)

ATOMIC_FLAG_INIT (C++11)(en desuso en C++20)

Ordenamiento de memoria

memory_order (C++11)

kill_dependency (C++11)

atomic_thread_fence (C++11)

atomic_signal_fence (C++11)

 

std::atomic

Las funciones miembro Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

atomic::atomic

atomic::operator=

atomic::is_lock_free

atomic::store

atomic::load

atomic::operator T

atomic::exchange

atomic::compare_exchange

Funciones especializadas miembros Original: Specialized member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

atomic::fetch_add

atomic::fetch_sub

atomic::fetch_and

atomic::fetch_or

atomic::fetch_xor

atomic::operator++atomic::operator++(int)atomic::operator--atomic::operator--(int)

atomic::operator+=atomic::operator-=atomic::operator&=atomic::operator|=atomic::operator^=

 

T load( memory_order = std::memory_order_seq_cst ) const;		(desde C++11)
T load( memory_order = std::memory_order_seq_cst ) const volatile;		(desde C++11)

Atómicamente cargas y devuelve el valor actual de la variable atómica. Memoria se ve afectada de acuerdo con el valor de memory_order .

Original:

Atomically loads and returns the current value of the atomic variable. Memory is affected according to the value of memory_order.

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memory_order debe ser uno de std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire o std::memory_order_seq_cst. De lo contrario el comportamiento no está definido .

Original:

memory_order must be one of std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire or std::memory_order_seq_cst. Otherwise the behavior is undefined.

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Parámetros

memory_order

-

restricciones de memoria el orden de hacer cumplir Original: memory order constraints to enforce The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

El valor actual de la variable atómica .

Original:

The current value of the atomic variable.

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Excepciones

Especificación noexcept:  

noexcept

  (desde C++11)

Ver también

operator T	carga un valor de un objeto atómico Original: loads a value from an atomic object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función miembro pública)
atomic_loadatomic_load_explicit (C++11)(C++11)	Obtiene atómicamente el valor almacenado en un objeto atómico. (plantilla de función)