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std::resetiosflags

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< cpp‎ | io‎ | manip

 
 
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resetiosflags
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Defined in header <iomanip>
/*unspecified*/ resetiosflags( std::ios_base::fmt_flags mask );
Lorsqu'il est utilisé dans une expression out << resetiosflags(mask) ou in >> resetiosflags(mask), efface tous les indicateurs de format du flux out ou in comme spécifié par le mask .
Original:
When used in an expression out << resetiosflags(mask) or in >> resetiosflags(mask), clears all format flags of the stream out or in as specified by the mask.
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Sommaire

[modifier] Paramètres

mask -
masque des drapeaux disparaisse
Original:
bitmask of the flags to clear
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[modifier] Retourne la valeur

Retourne un objet de type non précisé de sorte que si str est le nom d'un flux de sortie de type std::basic_ostream<CharT, Traits> ou std::basic_istream<CharT, Traits>, alors l'expression str << resetiosflags(mask) ou str >> resetiosflags(mask) se comporte comme si le code suivant est exécuté:
Original:
Returns an object of unspecified type such that if str is the name of an output stream of type std::basic_ostream<CharT, Traits> or std::basic_istream<CharT, Traits>, then the expression str << resetiosflags(mask) or str >> resetiosflags(mask) behaves as if the following code was executed:
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str.setf(std::ios_base::fmtflags(0), mask);

[modifier] Exemple

#include <sstream>
#include <iostream>
#include <iomanip>
int main()
{
    std::istringstream in("10 010 10 010 10 010");
    int n1, n2;
    in >> std::oct >> n1 >> n2;
    std::cout << "Parsing \"10 010\" with std::oct gives:  " << n1 << ' ' << n2 << '\n';
    in >> std::dec >> n1 >> n2;
    std::cout << "Parsing \"10 010\" with std::dec gives:  " << n1 << ' ' << n2 << '\n';
    in >> std::resetiosflags(std::ios_base::basefield) >> n1 >> n2;
    std::cout << "Parsing \"10 010\" with autodetect gives: " << n1 << ' ' << n2 << '\n';
}

Résultat :

Parsing "10 010" with std::oct gives:  8 8
Parsing "10 010" with std::dec gives:  10 10
Parsing "10 010" with autodetect gives: 10 8

[modifier] Voir aussi

active l'indicateur de format spécifique
Original:
sets specific format flag
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(fonction membre publique de std::ios_base) [edit]
fixe les drapeaux ios_base spécifiées
Original:
sets the specified ios_base flags
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(fonction) [edit]