public member function

std::bitset::any

<bitset>
bool any ( ) const;
Test if any bit is set
Returns whether any of the bits in the bitset is set.

Parameters

none

Return value

true if any of the bits in the bitset is set, and false otherwise.

Example

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// bitset::any
#include <iostream>
#include <bitset>
using namespace std;

int main ()
{
  bitset<16> mybits;

  cout << "enter a binary number: ";
  cin >> mybits;

  if (mybits.any())
    cout << "mybits has " << (int)mybits.count() << " bits set.\n";
  else cout << "mybits has no bits set.\n";

  return 0;
}


See also

bitset::count
Count bits set (public member function)
bitset::none
Test if no bit is set (public member function)
bitset::test
Return bit value (public member function)