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std::setiosflags

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setiosflags
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Defined in header <iomanip>
/*unspecified*/ setiosflags( std::ios_base::fmt_flags mask );

When used in an expression out << setiosflags(mask) or in >> setiosflags(mask), sets all format flags of the stream out or in as specified by the mask.

Sommaire

[modifier] Paramètres

mask - bitmask of the flags to set

[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 << setiosflags(mask) ou str >> setiosflags(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 << setiosflags(mask) or str >> setiosflags(mask) behaves as if the following code was executed:
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str.setf(mask);

[modifier] Exemple

#include <iostream>
#include <iomanip>
int main()
{
    std::cout <<  std::resetiosflags(std::ios_base::dec) 
              <<  std::setiosflags(  std::ios_base::hex
                                   | std::ios_base::uppercase
                                   | std::ios_base::showbase) << 42 << '\n';
}

Résultat :

0X2A

[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]
efface les drapeaux ios_base spécifiées
Original:
clears the specified ios_base flags
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(fonction) [edit]