std::basic_streambuf::sputn, std::basic_streambuf::xsputn
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| std::streamsize sputn( const char_type* s, std::streamsize count ); |
(1) | |
| protected: virtual std::streamsize xsputn( const char_type* s, std::streamsize count ); |
(2) | |
Llamadas
2) xsputn(s, count) de la clase más derivada .Original:
Calls
xsputn(s, count) of the most derived class.The text has been machine-translated via Google Translate.
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Escribe los caracteres
count a la secuencia de salida de la matriz de caracteres cuyo primer elemento es apuntado por s. Los personajes están escritos como por los repetidos llamamientos a sputc(). La escritura se detiene cuando se escriben caracteres count o una llamada a sputc() habría regresado traits::eof() .Original:
Writes
count characters to the output sequence from the character array whose first element is pointed to by s. The characters are written as if by repeated calls to sputc(). Writing stops when either count characters are written or a call to sputc() would have returned traits::eof().The text has been machine-translated via Google Translate.
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Si el área de poner se llena (pptr()==epptr()), esta función puede llamar
overflow(), o lograr el efecto de overflow() que llama por algún otro no especificado,, significa .Original:
If the put area becomes full (pptr()==epptr()), this function may call
overflow(), or achieve the effect of calling overflow() by some other, unspecified, means.The text has been machine-translated via Google Translate.
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Contenido |
[editar] Parámetros
(Ninguno)
Original:
(none)
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[editar] Valor de retorno
El número de caracteres escrito correctamente .
Original:
The number of characters successfully written.
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[editar] Ejemplo
#include <iostream> #include <sstream> int main() { std::ostringstream s1; std::streamsize sz = s1.rdbuf()->sputn("This is a test", 14); s1 << '\n'; std::cout << "The call to sputn() returned " << sz << '\n' << "The output sequence contains " << s1.str(); std::istringstream s2; sz = s2.rdbuf()->sputn("This is a test", 14); std::cout << "The call to sputn() on an input stream returned " << sz << '\n'; }
Output:
The call to sputn() returned 14 The output sequence contains This is a test The call to sputn() on an input stream returned 0
[editar] Ver también
| Invoca xsgetn() Original: invokes xsgetn() 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) | |
