bitset::any

Teste si tous les bits dans la séquence a la valeur 1.

bool any( ) const;

Valeur de retour

true si un bit dans le bitset a la valeur 1 ; false si tous les bits sont 0.

Exemple

// bitset_any.cpp
// compile with: /EHsc
#include <bitset>
#include <iostream>

int main( )
{
   using namespace std;

   bitset<5> b1 ( 6 );
   bool b, rb;

   cout << "The original bitset b1( 6 ) is: ( "<< b1 << " )"
        << endl;

   b = b1.any ( );

   if ( b )
      cout << "At least one of the bits in bitset is set to 1."
           << endl;
   else
      cout << "None of the bits in bitset are set to 1."
           << endl;
   
   bitset<5> rb1;
   rb1 = b1.reset ( );

   cout << "The reset bitset is: ( "<< b1 << " )"
        << endl;

   rb = rb1.any ( );

   if ( rb )
      cout << "At least one of the bits in the reset bitset "
           << "are set to 1." << endl;
   else
      cout << "None of the bits in bitset b1 are set to 1."
           << endl;
}

Configuration requise

en-tête : <bitset>

l'espace de noms : DST

Voir aussi

Référence

bitset Class