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      std::atomic_store,std::atomic_store_explicit

      From cppreference.com
      <cpp‎ |atomic
       
       
      Concurrency support library
      Threads
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      this_thread namespace
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      (C++11)
      (C++11)
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      (C++11)
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      Memory ordering
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      Free functions for atomic operations
      atomic_storeatomic_store_explicit
      (C++11)(C++11)
      Free functions for atomic flags
       
      Defined in header<atomic>
      template<class T>

      void atomic_store(std::atomic<T>* obj,

                         typenamestd::atomic<T>::value_type desired)noexcept;
      		 (1)(since C++11)
      template<class T>

      void atomic_store(volatilestd::atomic<T>* obj,

                         typenamestd::atomic<T>::value_type desired)noexcept;
      		 (2)(since C++11)
      template<class T>

      void atomic_store_explicit(std::atomic<T>* obj,
                                 typenamestd::atomic<T>::value_type desired,

                                 std::memory_order order)noexcept;
      		 (3)(since C++11)
      template<class T>

      void atomic_store_explicit(volatilestd::atomic<T>* obj,
                                 typenamestd::atomic<T>::value_type desired,

                                 std::memory_order order)noexcept;
      		 (4)(since C++11)
      1,2) Atomically replaces the value pointed to byobj with the value ofdesired as if byobj->store(desired).
      3,4) Atomically replaces the value pointed to byobj with the value ofdesired as if byobj->store(desired, order).
      Iforder is one ofstd::memory_order_consume,std::memory_order_acquire andstd::memory_order_acq_rel, the behavior is undefined.

      Contents

      [edit]Parameters

      obj - pointer to the atomic object to modify
      desired - the value to store in the atomic object
      order - the memory synchronization ordering

      [edit]Return value

      (none)

      [edit]Defect reports

      The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

      DRApplied toBehavior as publishedCorrect behavior
      P0558R1C++11exact type match was required because
      T was deduced from multiple arguments      		T is only deduced
      fromobj

      [edit]See also

      atomically replaces the value of the atomic object with a non-atomic argument
      (public member function ofstd::atomic<T>)[edit]
      atomically obtains the value stored in an atomic object
      (function template)[edit]
      defines memory ordering constraints for the given atomic operation
      (enum)[edit]
      specializes atomic operations forstd::shared_ptr
      (function template)
      C documentation foratomic_store,atomic_store_explicit
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