C++

Reference

<mutex>

class
<mutex>

std::defer_lock_t

struct defer_lock_t {};
Type of defer_lock
This is an empty class used as the type of defer_lock.

Passing defer_lock to unique_lock's constructor, makes it not to lock the mutex object automatically on construction, initializing the object as not owning a lock.

See also

defer_lock
Defer lock (object)
try_to_lock_t
Type of try_to_lock (class)
adopt_lock_t
Type of adopt_lock (class)