33 Concurrency support library [thread]

33.6 Mutual exclusion [thread.mutex]

33.6.3 Header <shared_mutex> synopsis [shared.mutex.syn]

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namespace std { // [thread.sharedmutex.class], class shared_mutex class shared_mutex; // [thread.sharedtimedmutex.class], class shared_timed_mutex class shared_timed_mutex; // [thread.lock.shared], class template shared_lock template<class Mutex> class shared_lock; template<class Mutex> void swap(shared_lock<Mutex>& x, shared_lock<Mutex>& y) noexcept; }