Espaces de noms
Variantes
Affichages
Actions

std::basic_istream::ignore

De cppreference.com
< cpp‎ | io‎ | basic istream

 
 
D'entrée / sortie de bibliothèque
I / O manipulateurs
C-style I / O
Tampons
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 (obsolète)
Cours d'eau
Original:
Streams
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Abstractions
Original:
Abstractions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Fichier E / O
Original:
File I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ifstream
basic_ofstream
basic_fstream
Chaîne I / O
Original:
String I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istringstream
basic_ostringstream
basic_stringstream
Tableau I / O
Original:
Array I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
istrstream (obsolète)
ostrstream (obsolète)
strstream (obsolète)
Types
Original:
Types
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
streamoff
streamsize
fpos
Interface catégorie d'erreur
Original:
Error category interface
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iostream_category (C++11)
io_errc (C++11)
 
std::basic_istream
Les objets globaux
Original:
Global objects
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
cin
wcin
Les fonctions membres
Original:
Member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::basic_istream
basic_istream::~basic_istream
basic_istream::operator= (C++11)
Entrée formaté
Original:
Formatted input
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::operator>>
Entrée non formaté
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_istream::get
basic_istream::peek
basic_istream::unget
basic_istream::putback
basic_istream::getline
basic_istream::ignore
basic_istream::read
basic_istream::readsome
basic_istream::gcount
Positionnement
Original:
Positioning
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::tellg
basic_istream::seekg
Divers
Original:
Miscellaneous
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::sync
basic_istream::swap (C++11)
Classes de membres
Original:
Member classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::sentry
Tiers fonctions
Original:
Non-member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
operator>>(std::basic_istream)
 
basic_istream& ignore( std::streamsize count = 1, int_type delim = Traits::eof() );
Extraits et les personnages les rejets à partir du flux d'entrée jusqu'à et y compris delim .
Original:
Extracts and discards characters from the input stream until and including delim.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Se comporte comme UnformattedInputFunction. Après la construction et la vérification de l'objet sentinelle, extrait les caractères à partir du flux et les supprime jusqu'à l'une des conditions suivantes est remplie:
Original:
Behaves as UnformattedInputFunction. After constructing and checking the sentry object, extracts characters from the stream and discards them until any one of the following conditions occurs:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Fin de fichier se produit dans les conditions de la séquence d'entrée (dans ce cas, la fonction appelle setstate(eofbit)
    Original:
    end of file conditions occurs in the input sequence (in which case the function calls setstate(eofbit)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • la c caractère suivant disponible dans la séquence d'entrée est déterminé par delim Traits::eq_int_type(Traits::to_int_type(c), delim). Le caractère délimiteur est extrait et mis au rebut (ce test est désactivée si delim est Traits::eof())
    Original:
    the next available character c in the input sequence is delim as determined by Traits::eq_int_type(Traits::to_int_type(c), delim). The delimiter character is extracted and discarded (this test is disabled if delim is Traits::eof())
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

Sommaire

[modifier] Paramètres

count -
nombre de caractères à extraire
Original:
number of characters to extract
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
delim -
délimitant caractère d'arrêter l'extraction à. Il est également extraite .
Original:
delimiting character to stop the extraction at. It is also extracted.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier] Retourne la valeur

*this

[modifier] Exemple

#include <iostream>
#include <sstream>
#include <limits>
int main()
{
    std::istringstream input("1\n"
                             "some non-numeric input\n"
                             "2\n");
    for(;;) {
        int n;
        input >> n;
 
        if(input.eof() || input.bad())
            break;
        else if(input.fail()) {
            input.clear(); // unset failbit
            input.ignore(std::numeric_limits<std::streamsize>::max(), '\n'); // skip bad input
        } else
            std::cout << n << '\n';
    }
}

Résultat :

1
2

[modifier] Voir aussi

extraits caractères
Original:
extracts characters
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(fonction membre publique) [edit]
caractères extraits jusqu'à ce que le caractère donné se trouve
Original:
extracts characters until the given character is found
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(fonction membre publique) [edit]