32 Concurrency support library [thread]

32.6 Mutual exclusion [thread.mutex]

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

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; }