The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
std::shared_lock<Mutex>::release – std::shared_lock<Mutex>::release Synopsis mutex_type* release() noexcept; (since C++14) Breaks the association of the associated mutex, if any, and *this. No locks are unlocked. If the *this held ownership of the associated mutex prior to the call, the caller is now responsible to unlock the mutex. Parameters (none) Return value Pointer to the associated mutex…
std::shared_lock<Mutex>::owns_lock – std::shared_lock<Mutex>::owns_lock Synopsis bool owns_lock() const noexcept; (since C++14) Checks whether *this owns a locked mutex or not. Parameters (none) Return value true if *this has an associated mutex and has acquired shared ownership of it, false otherwise. See also tests whether the lock owns its associated mutex operator_bool (public member function)
std::shared_lock<Mutex>::operatorbool – std::shared_lock<Mutex>::operatorbool Synopsis explicit operator bool() const noexcept; (since C++14) Checks whether *this owns a locked mutex or not. Effectively calls owns_lock(). Parameters (none) Return value true if *this has an associated mutex and has acquired shared ownership of it, false otherwise. See also tests whether the lock owns its associated mutex owns_lock (public…
std::shared_lock<Mutex>::operator= – std::shared_lock<Mutex>::operator= Synopsis shared_lock& operator=( shared_lock&& other ) noexcept; (since C++14) Move assignment operator. Replaces the contents with those of other using move semantics. If, prior to this call, *this has an associated mutex ((mutex() returns a non-null pointer) and has acquired ownership of it (owns() returns true), the mutex is unlocked by calling…
std::shared_lock<Mutex>::mutex – std::shared_lock<Mutex>::mutex Synopsis mutex_type* mutex() const noexcept; (since C++14) Returns a pointer to the associated mutex, or a null pointer if there is no associated mutex. Parameters (none) Return value Pointer to the associated mutex or a null pointer if there is no associated mutex. Example This section is incomplete Reason: no example
std::shared_lock<Mutex>::lock – std::shared_lock<Mutex>::lock Synopsis void lock(); (since C++ 14) Locks the associated mutex in shared mode. Effectively calls mutex()->lock_shared(). Parameters (none) Return value (none) 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…
std::shared_lock – std::shared_lock Synopsis Defined in header <shared_mutex> template< class Mutex > (since C++14) class shared_lock; The class shared_lock is a general-purpose shared mutex ownership wrapper allowing deferred locking, timed locking and transfer of lock ownership. Locking a shared_lock locks the associated shared mutex in shared mode (to lock it in exclusive mode, std::unique_lock can…
std::shared_future<T>::wait_until – std::shared_future<T>::wait_until Synopsis template <class Clock, class Duration> (since C++ 11) std::future_status wait_until(const std::chrono::time_point<Clock, Duration> &timeout_time) const; wait_until waits for a result to become available. It blocks until specified timeout_time has been reached or the result becomes available, whichever comes first. The return value indicates why wait_until returned. The behavior is undefined if valid()==…
std::shared_future<T>::wait_for – std::shared_future<T>::wait_for Synopsis template <class Rep, class Period> (since C++ 11) std::future_status wait_for(const std::chrono::duration<Rep, Period> &timeout_duration) const; Waits for the result to become available. Blocks until specified timeout_duration has elapsed or the result becomes available, whichever comes first. Returns value identifies the state of the result. This function may block for longer than timeout_duration…
std::shared_future<T>::wait – std::shared_future<T>::wait Synopsis void wait() const; (since C++ 11) Blocks until the result becomes available. valid() == true after the call. The behavior is undefined if valid()== false before the call to this function. Parameters (none) Return value (none) Exceptions (none) Notes The implementations are encouraged to detect the case when valid == false…
std::shared_future<T>::valid – std::shared_future<T>::valid Synopsis bool valid() const noexcept; (since C++11) Checks if the future refers to a shared state. This is the case only for futures that were not default-constructed or moved from. Unlike std::future, std::shared_future’s shared state is not invalidated when get() is called. The behavior is undefined if any member function other than…
std::shared_future<T>::~shared_future – std::shared_future<T>::~shared_future Synopsis ~shared_future(); (since C++11) If *this is the last object referring to the shared state, destroys the shared state. Otherwise does nothing.
std::shared_future<T>::operator= – std::shared_future<T>::operator= Synopsis shared_future &operator=(const shared_future &other); (since C++ 11)(1)(until C++ 17) shared_future & operator=(const shared_future &other) noexcept; (since C++ 17) shared_future & operator=(shared_future &&other) noexcept; (2)(since C++ 11) Assigns the contents of another shared_future. 1) Releases any shared state and assigns the contents of other to *this. After the assignment, this->valid() == other.valid()….
std::shared_future<T>::get – std::shared_future<T>::get Synopsis const T &get() const; (1)(member only of generic shared_future template)(since C++ 11) T &get() const; (2)(member only of shared_future<T &> template specialization)(since C++ 11) void get() const; (3)(member only of shared_future<void> template specialization)(since C++ 11) The get method waits until the shared_future has a valid result and (depending on which template…
std::shared_future – std::shared_future Synopsis Defined in header <future> template< class T > class shared_future; (1) (since C++11) template< class T > class shared_future<T&>; (2) (since C++11) template<> class shared_future<void>; (3) (since C++11) The class template std::shared_future provides a mechanism to access the result of asynchronous operations, similar to std::future, except that multiple threads are allowed…
std::setw – std::setw Synopsis Defined in header<iomanip> /*unspecified*/ setw(int n); When used in an expression out << setw(n) or in >> setw(n), sets the width parameter of the stream out or in to exactly n. Parameters n – new value for width Return value Returns an object of unspecified type such that if str is…
std::setvbuf – std::setvbuf Synopsis Defined in header<cstdio> int setvbuf(std::FILE *stream, char *buffer, int mode, std::size_t size); Changes the the buffering mode of the given file stream stream as indicated by the argument mode. In addition, * If buffer is a null pointer, resizes the internal buffer to size. * If buffer is not a null…
std::setprecision – std::setprecision Synopsis Defined in header<iomanip> /*unspecified*/ setprecision(int n); When used in an expression out << setprecision(n) or in >> setprecision(n), sets the precision parameter of the stream out or in to exactly n. Parameters n – new value for precision Return value Returns an object of unspecified type such that if str is…
std::setlocale – std::setlocale Synopsis Defined in header<clocale> char *setlocale(int category, const char *locale); The setlocale function installs the specified system locale or its portion as the new C locale. The modifications remain in effect and influences the execution of all locale-sensitive C library functions until the next call to setlocale. If locale is a null…
std::setiosflags – std::setiosflags Synopsis Defined in header <iomanip> /*unspecified*/ setiosflags( std::ios_base::fmtflags mask ); When used in an expression out << setiosflags(mask) or in >> setiosflags(mask), sets all format flags of the stream out or in as specified by the mask. Parameters mask – bitmask of the flags to set Return value Returns an object of…