#include <iostream>
#include <bitset>

int main()
{
    constexpr std::size_t NBOOLS = 5 ;
    // http://e...content-available-to-author-only...e.com/w/cpp/utility/bitset
    std::bitset<NBOOLS> group ; // group of 5 bits (or 5 boolean values)

    auto zero = group[0] ;
    auto one = group[1] ;
    auto two = group[2] ;
    auto three = group[3] ;
    auto four = group[4] ;

    two = true ;
    three = true ;

    std::cout << std::boolalpha ;
    for( std::size_t i = 0 ; i < NBOOLS ; ++i )
        std::cout << "group[" << i << "] == " << group[i] << '\n' ;

    std::cout << "group: " << group << '\n' ;

    // is any of the boolean values true? (is any bit set?)
    if( group.any() ) std::cout << "atleast one of the " << group.size() << " is true (set)\n" ;

    // are all of them false? (is no bit set?)
    if( group.none() ) std::cout << "none of the " << group.size() << " are true (set)\n" ;

    // how many are true (set)?
    std::cout << group.count() << " of the " << group.size() << " are true (set)\n" ;

    zero = true ; // set zero to true
    three = false ; // set three to false
    four.flip() ; // toggle four
    std::cout << "group: " << group << '\n' ;
    std::cout << group.count() << " of the " << group.size() << " are true (set)\n" ;

    // etc.
}