std::basic_ostream::write

 

C++

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I / O manipuladores

C-estilo I / O

Buffers 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 (obsoleto)

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ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

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basic_ifstream

basic_ofstream

basic_fstream

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basic_istringstream

basic_ostringstream

basic_stringstream

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istrstream (obsoleto)

ostrstream (obsoleto)

strstream (obsoleto)

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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)
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basic_ostream::operator<<
Entrada sin formato 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)

Esta función es una función de salida sin formato: se inicia la ejecución mediante la construcción de un objeto de tipo sentry, que vacía los buffers de salida tie()'d si es necesario y comprueba los errores de secuencia. Después de la construcción, si se devuelve el objeto centinela false, la función devuelve sin pretender ninguna salida. Si se produce una excepción durante la salida, entonces ios :: badbit se establece (se suprime la excepción a menos que exceptions()&badbit != 0, en cuyo caso se vuelve a iniciar)

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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Parámetros

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

Valor de retorno

*this

Notas

Esta función no está sobrecargado para los tipos signed char o unsigned char, a diferencia del <div class="t-tr-text"><< operador

Original:

operator<<

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formato

Original:

This function is not overloaded for the types signed char or unsigned char, unlike the formatted

<< operador

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.

Excepciones

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

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

Ejemplo

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

Ver también

operator<<(std::basic_ostream)	inserciones de datos de caracteres 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. (función)
put	inserta un carácter 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. (miembro público función)