std::shared_lock::lock
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                    < cpp | thread | shared lock
                    
                                                            
                    | void lock(); | (since C++14) | |
Locks the associated mutex in shared mode. Effectively calls mutex()->lock_shared().
| Contents | 
[edit] Parameters
(none)
[edit] Return value
(none)
[edit] Exceptions
- Any exceptions thrown by mutex()->lock_shared()
- If there is no associated mutex, std::system_error with an error code of std::errc::operation_not_permitted
-  If the associated mutex is already locked by this shared_lock(that is, owns_lock returnstrue), std::system_error with an error code of std::errc::resource_deadlock_would_occur
[edit] Example
| This section is incomplete Reason: no example | 
[edit] See also
| tries to lock the associated mutex (public member function) | |
| unlocks the associated mutex (public member function) | 


