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) | |
Ruft
2) xsputn(s, count) der am meisten abgeleiteten Klasse .Original:
Calls
xsputn(s, count) of the most derived class.The text has been machine-translated via Google Translate.
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Schreibt
count Zeichen mit dem Ausgang Sequenz aus der Zeichengruppe, deren erstes Element ist, um durch s hingewiesen. Die Charaktere sind wie durch wiederholte Aufrufe sputc() geschrieben. Writing stoppt, wenn entweder count Zeichen geschrieben werden oder ein Anruf an sputc() würde traits::eof() zurückgekehrt .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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Wird die Put-Bereich voll ist (pptr()==epptr()), kann diese Funktion
overflow() nennen, zu erreichen oder das Aufrufen overflow() durch eine andere, nicht näher bezeichnet, bedeutet .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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Inhaltsverzeichnis |
[Bearbeiten] Parameter
(None)
Original:
(none)
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[Bearbeiten] Rückgabewert
Die Anzahl der Zeichen erfolgreich geschrieben .
Original:
The number of characters successfully written.
The text has been machine-translated via Google Translate.
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[Bearbeiten] Beispiel
#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
[Bearbeiten] Siehe auch
| Beruft 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. (öffentliche Elementfunktion) | |
