Linux Manuals

std::time_get_byname – std::time_get_byname Synopsis Defined in header <locale> template< class CharT, class InputIt = std::istreambuf_iterator<CharT> > class time_get_byname : public std::time_get<CharT, InputIt> std::time_get_byname is a std::time_get facet which encapsulates time and date parsing rules of the locale specified at its construction. Two specializations are provided by the standard library Defined in header <locale> std::time_get_byname<char, InputIt>…

std::time_get<CharT,InputIt>::~time_get – std::time_get<CharT,InputIt>::~time_get Synopsis Defined in header <locale> protected: ~time_get(); Destructs a std::time_get facet. This destructor is protected and virtual (due to base_class destructor being virtual). An object of type std::time_get, like most facets, can only be destroyed when the last std::locale object that implements this facet goes out of scope or if a user-defined…

std::time_base – std::time_base Synopsis Defined in header <locale> class time_base; The class std::time_base provides the date order constants which are inherited by the std::time_get facets. Member types Member type Definition enum dateorder { no_order, dmy, mdy, ymd, ydm }; Unscoped enumeration type Enumeration constant Definition no_order Unspecified order dmy Day, month, year (european) order mdy…

std::time – std::time Synopsis Defined in header <ctime> std::time_t time( std::time_t* arg ); Returns the current calendar time encoded as a std::time_t object, and also stores it in the object pointed to by arg, unless arg is a null pointer. Parameters arg – pointer to a std::time_t object to store the time, or a null…

std::tie – std::tie Synopsis Defined in header <tuple> template< class… Types > (since C++11) tuple<Types&…> tie( Types&… args ) noexcept; (constexpr since C++14) Creates a tuple of lvalue references to its arguments or instances of std::ignore. Parameters args – zero or more lvalue arguments to construct the tuple from Return value A std::tuple object containing…

std::throw_with_nested – std::throw_with_nested Synopsis Defined in header<exception> template <class T> (since C++ 11) [[noreturn]] void throw_with_nested(T &&t); If std::decay<T>::type is a non-final non-union class type that is neither std::nested_exception nor derived from std::nested_exception, throws an exception of an unspecified type that is publicly derived from both std::nested_exception and from std::decay<T>::type, and constructed from std::forward<T>(t). The…

std::thread::id – Synopsis Public Member Functions id (native_handle_type __id) Friends class hash< thread::id > bool operator< (thread::id __x, thread::id __y) noexcept template<class _CharT , class _Traits > basic_ostream< _CharT, _Traits > & operator<< (basic_ostream< _CharT, _Traits > &__out, thread::id __id) bool operator== (thread::id __x, thread::id __y) noexcept class thread Detailed Description thread::id Definition at line…

std::thread::~thread – std::thread::~thread Synopsis ~thread(); (since C++11) Destroys the thread object. If *this has an associated thread (joinable() == true), std::terminate() is called. Notes A thread object does not have an associated thread (and is safe to destroy) after * it was default-constructed * it was moved from * join() has been called * detach()…

std::thread::swap – std::thread::swap Synopsis void swap(thread &other) noexcept; (since C++ 11) Exchanges the underlying handles of two thread objects. Parameters other – the thread to swap with Return value (none) Example // Run this code #include <iostream> #include <thread> #include <chrono> void foo() { std::this_thread::sleep_for(std::chrono::seconds(1)); } void bar() { std::this_thread::sleep_for(std::chrono::seconds(1)); } int main() { std::thread…

std::thread::operator= – std::thread::operator= Synopsis thread& operator=( thread&& other ) noexcept; (since C++11) If *this still has an associated running thread (i.e. joinable() == true), call std::terminate(). Otherwise, assigns the state of other to *this and sets other to a default constructed state. After this call, this->get_id() is equal to the value of other.get_id() prior to…

std::thread::native_handle – std::thread::native_handle Synopsis native_handle_type native_handle(); (since C++11) Returns the implementation defined underlying thread handle. Parameters (none) Return value implementation defined handle type representing the thread. Exceptions (none) Example Uses native_handle to enable realtime scheduling of C++ threads on a POSIX system // Run this code #include <thread> #include <mutex> #include <iostream> #include <chrono> #include…

std::thread::joinable – std::thread::joinable Synopsis bool joinable() const noexcept; (since C++11) Checks if the thread object identifies an active thread of execution. Specifically, returns true if get_id() != std::thread::id(). So a default constructed thread is not joinable. A thread that has finished executing code, but has not yet been joined is still considered an active thread…

std::thread::join – std::thread::join Synopsis void join(); (since C++ 11) Blocks the current thread until the thread identified by *this finishes its execution. The completion of the thread identified by *this synchronizes with the corresponding successful return from join(). No synchronization is performed on *this itself. Concurrently calling join() on the same std::thread object from multiple…

std::thread::id::id – std::thread::id::id Synopsis id() noexcept; (since C++11) Default-constructs a new thread identifier. The identifier does not represent a thread. Parameters (none)

std::thread::id – std::thread::id Synopsis Defined in header <thread> class thread::id; (since C++11) The class thread::id is a lightweight, trivially copyable class that serves as a unique identifier of std::thread objects. Instances of this class may also hold the special distinct value that does not represent any thread. Once a thread has finished, the value of…

std::thread::hardware_concurrency – std::thread::hardware_concurrency Synopsis static unsigned int hardware_concurrency() noexcept; (since C++ 11) Returns the number of concurrent threads supported by the implementation. The value should be considered only a hint. Parameters (none) Return value Number of concurrent threads supported. If the value is not well defined or not computable, returns 0. Example // Run this…

std::thread::get_id – std::thread::get_id Synopsis std::thread::id get_id() const noexcept; (since C++11) Returns a value of std::thread::id identifying the thread associated with *this. Parameters (none) Return value A value of type std::thread::id identifying the thread associated with *this. If there is no thread associated, default constructed std::thread::id is returned. Example // Run this code #include <iostream> #include…

std::thread::detach – std::thread::detach Synopsis void detach(); (since C++ 11) Separates the thread of execution from the thread object, allowing execution to continue independently. Any allocated resources will be freed once the thread exits. After calling detach *this no longer owns any thread. Parameters (none) Return value (none) Postconditions joinable is false Exceptions std::system_error if joinable()…

std::thread – std::thread Synopsis Defined in header <thread> class thread; (since C++11) The class thread represents a_single_thread_of_execution. Threads allow multiple functions to execute concurrently. Threads begin execution immediately upon construction of the associated thread object (pending any OS scheduling delays), starting at the top-level function provided as a constructor_argument. The return value of the top-level…

std::this_thread::yield – std::this_thread::yield Synopsis Defined in header <thread> void yield() noexcept; (since C++11) Provides a hint to the implementation to reschedule the execution of threads, allowing other threads to run. Parameters (none) Return value (none) Notes The exact behavior of this function depends on the implementation, in particular on the mechanics of the OS scheduler…