std::basic_fstream::basic_fstream — cppreference.com
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(3) | (depuis C++11) |
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(4) | (depuis C++11) |
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Construit flux nouveau fichier .
Original:
Constructs new file stream.
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1)
Constructeur par défaut: construit un ruisseau qui n'est pas associé à un fichier: default-construit le std::basic_filebuf et construit la base avec le pointeur de ce défaut-construit membre std::basic_filebuf .
Original:
Default constructor: constructs a stream that is not associated with a file: default-constructs the std::basic_filebuf and constructs the base with the pointer to this default-constructed std::basic_filebuf member.
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2)
Tout d'abord, effectue les mêmes étapes que le constructeur par défaut, puis asssociate le flux avec un fichier en appelant rdbuf()->open(filename, mode).. Si l'appel open () renvoie un pointeur nul, définit setstate(failbit) .
Original:
First, performs the same steps as the default constructor, then asssociate the stream with a file by calling rdbuf()->open(filename, mode).. If the open() call returns a null pointer, sets setstate(failbit).
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3)
Même que basic_fstream(filename.c_str(), mode) .
Original:
Same as basic_fstream(filename.c_str(), mode).
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4)
Déplacez constructeur. Tout d'abord, mouvement construit à partir de la classe de base other (qui n'affecte pas le pointeur rdbuf()), puis déplacez-construit le membre std::basic_filebuf, puis appelle this->set_rdbuf() pour installer la nouvelle basic_filebuf que le pointeur rdbuf() dans la classe de base .
Original:
Move constructor. First, move-constructs the base class from other (which does not affect the rdbuf() pointer), then move-constructs the std::basic_filebuf member, then calls this->set_rdbuf() to install the new basic_filebuf as the rdbuf() pointer in the base class.
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5)
Le constructeur de copie est supprimée: cette classe n'est pas copiable .
Original:
The copy-constructor is deleted: this class is not copyable.
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Paramètres
| filename | - | le nom du fichier à ouvrir Original: the name of the file to be opened The text has been machine-translated via Google Translate. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| mode | - | spécifie le mode de flux ouvert. Il est de type masque, les constantes suivantes sont définies:
Original: specifies stream open mode. It is bitmask type, the following constants are defined:
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| other | - | un autre flux de fichier à utiliser comme source Original: another file stream to use as source The text has been machine-translated via Google Translate. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Exemple
#include <fstream> #include <utility> #include <string> int main() { std::fstream f0; std::fstream f1("test.bin", std::ios::binary); std::string name = "example.txt"; std::fstream f2(name); std::fstream f3(std::move(f1)); }
Voir aussi
ouvre un fichier et l'associe avec le flux Original: opens a file and associates it with the stream The text has been machine-translated via Google Translate. (fonction membre publique) [edit] | |
ouvre un fichier et le configure comme la séquence de caractères associé Original: opens a file and configures it as the associated character sequence The text has been machine-translated via Google Translate. (fonction membre publique de std::basic_filebuf) [edit]
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remplace le Original: replaces the The text has been machine-translated via Google Translate. (fonction membre protégée) [edit] | |
Construit l'objet Original: constructs the object The text has been machine-translated via Google Translate. (fonction membre publique de std::basic_iostream) [edit]
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