std::basic_fstream::basic_fstream

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Ingresso / libreria di output

I / O manipolatori

C-style I / O

Buffer Original: Buffers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf (deprecato)

Streams Original: Streams The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Astrazioni Original: Abstractions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

File I / O Original: File I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_ifstream

basic_ofstream

basic_fstream

String I / O Original: String I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_istringstream

basic_ostringstream

basic_stringstream

Array I / O Original: Array I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

istrstream (deprecato)

ostrstream (deprecato)

strstream (deprecato)

Tipi Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

streamoff

streamsize

fpos

Errore categoria interfaccia Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category (C++11)

io_errc (C++11)

 

std::basic_fstream

Membri funzioni Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_fstream::basic_fstream

basic_fstream::operator= (C++11)

basic_fstream::swap (C++11)

basic_fstream::rdbuf

Operazioni sui file Original: File operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_fstream::is_open

basic_fstream::open

basic_fstream::close

Non membri funzioni Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_fstream::swap(std::basic_fstream) (C++11)

 

basic_fstream();	(1)
basic_fstream(constchar* filename,                ios_base::openmode mode = ios_base::in|ios_base::out);	(2)
basic_fstream(const string& filename,                                                  ios_base::openmode mode = ios_base::in|ios_base::out);	(3)	(dal C++11)
basic_fstream( basic_fstream&& other );	(4)	(dal C++11)
basic_fstream(const basic_fstream& rhs)= delete;	(5)

Costruisce nuovo flusso di file.

Original:

Constructs new file stream.

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1)

Costruttore di default: costruisce un flusso che non è associato a un file: default-costruisce il std::basic_filebuf e costruisce la base con il puntatore a questa impostazione predefinita, costruito membro 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)

In primo luogo, eseguire la stessa procedura il costruttore di default, quindi asssociate il flusso con un file chiamando rdbuf()->open(filename, mode).. Se la chiamata open () restituisce un puntatore nullo, imposta 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)

Come basic_fstream(filename.c_str(), mode).

Original:

Same as basic_fstream(filename.c_str(), mode).

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4)

Sposta costruttore. In primo luogo, movimento costruisce la classe base da other (che non pregiudica il puntatore rdbuf()), quindi spostare-costruisce il membro std::basic_filebuf, quindi chiama this->set_rdbuf() per installare il basic_filebuf nuovo il puntatore rdbuf() nella classe 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)

Il costruttore di copia viene eliminata: questa classe non è copiabile.

Original:

The copy-constructor is deleted: this class is not copyable.

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Parametri

filename	-	il nome del file da aprire Original: the name of the file to be opened The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
mode	-	specifica modalità di apertura flusso. E 'tipo di maschera di bit, le seguenti costanti sono definite: Constant Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation app cercano alla fine del flusso prima di ogni scrittura Original: seek to the end of stream before each write The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. binary aperto in modalità binaria Original: open in binary mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. in aprire per la lettura Original: open for reading The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. out aperto per la scrittura Original: open for writing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. trunc scartare il contenuto del flusso durante l'apertura Original: discard the contents of the stream when opening The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ate cercano di fine flusso subito dopo aperto Original: seek to the end of stream immediately after open The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Original: specifies stream open mode. It is bitmask type, the following constants are defined: Constant Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation app cercano alla fine del flusso prima di ogni scrittura Original: seek to the end of stream before each write The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. binary aperto in modalità binaria Original: open in binary mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. in aprire per la lettura Original: open for reading The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. out aperto per la scrittura Original: open for writing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. trunc scartare il contenuto del flusso durante l'apertura Original: discard the contents of the stream when opening The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ate cercano di fine flusso subito dopo aperto Original: seek to the end of stream immediately after open The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
other	-	un altro flusso di file da utilizzare come fonte Original: another file stream to use as source The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Esempio

#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));}

Vedi anche

open	apre un file e lo associa con il flusso Original: opens a file and associates it with the stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
open	apre un file e lo configura come la sequenza di caratteri associata Original: opens a file and configures it as the associated character sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
set_rdbuf	sostituisce il rdbuf senza cancellare il suo stato di errore Original: replaces the rdbuf without clearing its error state The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (protetto funzione membro)
(costruttore)	Costruisce l'oggetto Original: constructs the object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)