constexpr try_to_lock_t try_to_lock {};
Try to lock
Value used as possible argument to unique_lock's constructor.

unique_lock objects constructed with try_to_lock attempt to lock the mutex object by calling its try_lock member instead of its lock member.

The value is a compile-time constant that carries no state, and is merely used to disambiguate between constructor signatures.

try_to_lock_t is an empty class.

See also