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Determine if operations on *this are lock free.

Instances of std::experimental::atomic_weak_ptr are lock-free if the target CPU supports double-word-compare-and-swap. This is true for all supported 32-bit CPUs, and for 64-bit CPUs that support the CMPXCHG16B instruction. This determination is done at runtime, since it depends on the model of the CPU rather than the OS or compiler.

bool is_lock_free() const noexcept;


true if operations on *this are lock free, false otherwise.




#include <experimental/atomic>

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