std::atomic_flag_clear,std::atomic_flag_clear_explicit (3) - Linux Manuals

std::atomic_flag_clear,std::atomic_flag_clear_explicit: std::atomic_flag_clear,std::atomic_flag_clear_explicit

NAME

std::atomic_flag_clear,std::atomic_flag_clear_explicit - std::atomic_flag_clear,std::atomic_flag_clear_explicit

Synopsis

Defined in header <atomic>
void atomic_flag_clear( volatile std::atomic_flag* p ) noexcept;
void atomic_flag_clear( std::atomic_flag* p ) noexcept;
void atomic_flag_clear_explicit( volatile std::atomic_flag* p, (1) (since C++11)
std::memory_order order ) noexcept; (2) (since C++11)
void atomic_flag_clear_explicit( std::atomic_flag* p,
std::memory_order order ) noexcept;

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

Parameters

p - pointer to std::atomic_flag to access
order - the memory synchronization ordering for this operation: only std::memory_order_relaxed, std::memory_order_release, or std::memory_order_seq_cst are permitted.

Return value

none.

Possible implementation

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);
  }