std::basic_ostream::flush
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< cpp | io | basic ostream
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| basic_ostream& flush(); |
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Writes uncommitted changes to the underlying output sequence.
If rdbuf() is a null pointer, does nothing
Otherwise, constructs a sentry object which checks the stream for errors and flushes the tie()'d output streams. If the sentry object returns false, does nothing (начиная с C++11)
Otherwise, calls rdbuf()->pubsync(). If the call returns -1, calls setstate(badbit).
Содержание |
[править] Параметры
(Нет)
Original:
(none)
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You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[править] Возвращаемое значение
*this
[править] Исключения
May throw std::ios_base::failure if exceptions()&badbit!=0.
[править] Пример
#include <thread> #include <iostream> #include <chrono> void f() { std::cout << "Output from thread..."; std::this_thread::sleep_for(std::chrono::seconds(2)); std::cout << "...thread calls flush()\n"; std::cout.flush(); } int main() { std::thread t1(f); std::this_thread::sleep_for(std::chrono::seconds(1)); std::clog << "Output from main\n"; t1.join(); }
Вывод:
Output from main Output from thread.....thread calls flush()
[править] См. также
| синхронизируется с основным устройством хранения Original: synchronizes with the underlying storage device The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public функция-член std::basic_istream)
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| очищает выходной поток Original: flushes the output stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (шаблон функции) | |
| Выходы '\n' и очищает выходной поток Original: outputs '\n' and flushes the output stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (шаблон функции) | |
