std::basic_ostream<CharT,Traits>::write
De cppreference.com
basic_ostream& write( const char_type* s, std::streamsize count );
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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
countcharacters 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)The text has been machine-translated via Google Translate.
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You can help to correct and verify the translation. Click here for instructions.
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 << operador
formatoOriginal:
operator<<
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Original:
This function is not overloaded for the types
signed char or unsigned char, unlike the formatted << operador
Original:
operator<<
The text has been machine-translated via [http://translate.google.com Google Translate].
You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.
You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.
The text has been machine-translated via Google Translate.
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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
Ejecuta este código
#include <iostream>
int main()
{
int n = 0x41424344;
std::cout.write(reinterpret_cast<char*>(&n), sizeof n);
std::cout << '\n';
}
Salida:
DCBA