std::basic_ostream::write

 

C++

Linguaggio

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Libreria di Utilità

Stringhe

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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)

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streamoff

streamsize

fpos

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iostream_category (C++11)

io_errc (C++11)

 

std::basic_ostream

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cout wcout	cerr wcerr	clog wclog
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basic_ostream::basic_ostream
basic_ostream::~basic_ostream
basic_ostream::operator= (C++11)
Ingresso formattato Original: Formatted input The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::operator<<
Ingresso non formattato Original: Unformatted input The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::put
basic_ostream::write
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basic_ostream::tellp
basic_ostream::seekp
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basic_ostream::flush
basic_ostream::swap (C++11)
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basic_ostream::sentry
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operator<<(std::basic_ostream)

 

basic_ostream& write(const char_type* s, std::streamsize count );

Outputs characters from successive locations in the character array whose first element is pointed to by s. Characters are inserted into the output sequence until one of the following occurs:

• exactly count characters are inserted
• inserting into the output sequence fails (in which case setstate(badbit) is called)

Questa funzione è una funzione di output non formattato: è avviare l'esecuzione con la costruzione di un oggetto di tipo sentry, che svuota il buffer di uscita tie()'d, se necessario, e controlla gli errori del flusso. Dopo la costruzione, se i rendimenti sentinella oggetto false, la funzione restituisce senza tentare alcun output. Se viene generata un'eccezione durante l'uscita, poi ios :: badbit è impostato (l'eccezione è soppressa a meno exceptions()&badbit !=0, nel qual caso viene rilanciata)

Original:

This function is an unformatted output function: it begin execution by constructing an object of type sentry, which flushes the tie()'d output buffers if necessary and checks the stream errors. After construction, if the sentry object returns false, the function returns without attempting any output. If an exception is thrown during output, then ios::badbit is set (the exception is suppressed unless exceptions()&badbit !=0, in which case it is rethrown)

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Parametri

s	-	pointer to the character string to write
count	-	number of characters to write

Valore di ritorno

*this

Note

Questa funzione non è sovraccarico per i tipi di signedchar o unsignedchar, a differenza del <div class="t-tr-text">operatore <<

Original:

operator<<

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formattato

Original:

This function is not overloaded for the types signedchar or unsignedchar, unlike the formatted

operatore <<

Original:

operator<<

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</div>

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Also, unlike the formatted output functions, this function does not set the failbit on failure.

Eccezioni

If an exception occurs during output and exceptions()&badbit !=0, rethrows that exception.

If output fails and exceptions()&badbit !=0, throws ios_base::failure.

Esempio

This function may be used to output object representations, i.e. binary output

#include <iostream>int main(){int n =0x41424344;std::cout.write(reinterpret_cast<char*>(&n), sizeof n);std::cout<<'\n';}

Output:

DCBA

Vedi anche

operator<<(std::basic_ostream)	inserisce i dati carattere Original: inserts character data The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
put	inserisce un carattere Original: inserts a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)