32 Bitmask helper

bitmask.h

#include <iostream>

class Bitmask {
public:
    Bitmask(uint32_t _=0u) : n(_) {}

    inline uint32_t get(int i) const { return (n >> i) & 1; }

    inline void set  (int i) { n |=  (1 << i); }
    inline void reset(int i) { n &= ~(1 << i); }
    inline void flip (int i) { n ^=  (1 << i); }

private:
    uint32_t n;

    friend std::ostream & operator<<(std::ostream & os, const Bitmask & B) {
        for(int i = 31; i >= 0; --i) os << B.get(i);
        return os;
    }

    friend std::istream & operator>>(std::istream & is, Bitmask & B) {
        uint32_t n;

        is >> n;
        B.n = n;

        return is;
    }
};