std::basic_ostream::flush
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< cpp | io | basic ostream
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| basic_ostream& flush(); |
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Écrit les modifications non validées à la séquence de sortie sous-jacente .
Original:
Writes uncommitted changes to the underlying output sequence.
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Si rdbuf () est un pointeur NULL, ne fait rien
Original:
If rdbuf() is a null pointer, does nothing
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Sinon, construit un objet sentry qui vérifie le flux d'erreurs et les couleurs de la cravate () 'flux de sortie d. Si l'objet sentinelle retourne false, ne (depuis C++11) rien
Original:
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 (depuis C++11)
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Dans le cas contraire, les appels rdbuf()->pubsync(). Si les retours d'appels -1, appelle setstate(badbit) .
Original:
Otherwise, calls rdbuf()->pubsync(). If the call returns -1, calls setstate(badbit).
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Sommaire |
[modifier] Paramètres
(Aucun)
Original:
(none)
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[modifier] Retourne la valeur
*this
[modifier] Exceptions
Peut générer std::ios_base::failure si exceptions()&badbit!=0 .
Original:
May throw std::ios_base::failure if exceptions()&badbit!=0.
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[modifier] Exemple
#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(); }
Résultat :
Output from main Output from thread.....thread calls flush()
[modifier] Voir aussi
| synchronise avec le dispositif de stockage sous-jacent 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. (fonction membre publique de std::basic_istream)
| |
| vide le flux de sortie 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. (fonction générique) | |
| sorties '\n' et vide le flux de sortie 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. (fonction générique) | |
