Espaços nominais
Variantes
Acções

std::atomic_init

Da cppreference.com
< cpp‎ | atomic

 
 
Biblioteca operações atômica
Tipos
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Types
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atomic(C++11)
atomic_is_lock_free(C++11)
Funções
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)
Bandeiras atômicas
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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)
Inicialização
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Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
Memória de encomenda
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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>
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 );
Inicializa o padrão construído object objeto atômico com o desired valor. A função não é atômica: o acesso simultâneo de outro segmento, mesmo através de uma operação atômica, é uma corrida de dados.
Original:
Initializes the default-constructed atomic object object with the value desired. The function is not atomic: concurrent access from another thread, even through an atomic operation, is a data race.
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Se obj não era padrão construído, o comportamento é indefinido.
Original:
If obj was not default-constructed, the behavior is undefined.
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Se esta função é chamada duas vezes no mesmo obj, o comportamento é indefinido.
Original:
If this function is called twice on the same obj, the behavior is undefined.
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Índice

[editar] Parâmetros

obj -
ponteiro para um objeto atômico para inicializar
Original:
pointer to an atomic object to initialize
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desired -
o valor para inicializar objeto atômico com
Original:
the value to initialize atomic object with
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[editar] Valor de retorno

(Nenhum)
Original:
(none)
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[editar] Exceções

noexcept specification:  
noexcept
  (a partir do C++ 11)

[editar] Notas

Esta função é fornecida para compatibilidade com C. Se a compatibilidade não é necessário, std::atomic pode ser inicializado através de seus construtores não-padrão.
Original:
This function is provided for compatibility with C. If the compatibility is not required, std::atomic may be initialized through their non-default constructors.
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[editar] Exemplo

[editar] Veja também

inicialização constante de uma variável atômica de duração de armazenamento estático
Original:
constant initialization of an atomic variable of static storage duration
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(função macro) [edit]
constrói um objeto atômico
Original:
constructs an atomic object
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(of std::atomic função pública membro) [edit]
C documentation for atomic_init