std::skipws, std::noskipws
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<metanoindex/>
<tbody> </tbody>| definiert in Header <ios>
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std::ios_base& skipws( std::ios_base& str ); |
(1) | |
std::ios_base& noskipws( std::ios_base& str ); |
(2) | |
Aktiviert oder deaktiviert das Überspringen von führenden Leerzeichen durch die formatierte Eingabe-Funktionen (standardmäßig aktiviert). Hat keine Auswirkungen auf die Produktion .
Original:
Enables or disables skipping of leading whitespace by the formatted input functions (enabled by default). Has no effect on output.
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1)
ermöglicht die
skipws Flagge in den Strom str, als ob durch den Aufruf str.setf(std::ios_base::skipws)Original:
enables the
skipws flag in the stream str as if by calling str.setf(std::ios_base::skipws)The text has been machine-translated via Google Translate.
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2)
deaktiviert die
skipws Flagge in den Strom str, als ob durch den Aufruf str.unsetf(std::ios_base::skipws)Original:
disables the
skipws flag in the stream str as if by calling str.unsetf(std::ios_base::skipws)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Das Leerzeichen übersprungen wird vom Konstruktor std::basic_istream::sentry, liest und verwirft die Zeichen als Leerraum von der std::ctype Facette des Streams durchdrungen locale klassifiziert durchgeführt .
Original:
The whitespace skipping is performed by the constructor of std::basic_istream::sentry, which reads and discards the characters classified as whitespace by the std::ctype facet of the stream's imbued locale.
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Dies ist ein I / O-Manipulators, kann es mit einem Expressionsvektor wie
out << std::noskipws für jede out vom Typ std::basic_ostream oder mit einem Expressionsvektor wie in >> std::noskipws für jede in vom Typ std::basic_istream aufgerufen werden .Original:
This is an I/O manipulator, it may be called with an expression such as
out << std::noskipws for any out of type std::basic_ostream or with an expression such as in >> std::noskipws for any in of type std::basic_istream.The text has been machine-translated via Google Translate.
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Parameter
| str | - | Verweisen auf I / O-Strom
Original: reference to I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Rückgabewert
str (Verweis auf den Stream nach Manipulation)Original:
str (reference to the stream after manipulation)The text has been machine-translated via Google Translate.
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Beispiel
#include <iostream>
#include <sstream>
int main()
{
char c1, c2, c3;
std::istringstream("a b c") >> c1 >> c2 >> c3;
std::cout << "Default behavior: c1 = " << c1 << " c2 = " << c2 << " c3 = " << c3 << '\n';
std::istringstream("a b c") >> std::noskipws >> c1 >> c2 >> c3;
std::cout << "noskipws behavior: c1 = " << c1 << " c2 = " << c2 << " c3 = " << c3 << '\n';
}
Output:
Default behavior: c1 = a c2 = b c3 = c
noskipws behavior: c1 = a c2 = c3 = b
Siehe auch
löscht die angegebene ios_base Fahnen Original: clears the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
Legt die angegebene ios_base Fahnen Original: sets the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |