Binary Serialization of std::bitset

Question

std::bitset has a to_string() method for serializing as a char-based string of 1s and 0s. Obviously, this us

Answer 1

this might help you, it's a little example of various serialization types. I added bitset and raw bit values, that can be used like the below.

(all examples at https://github.com/goblinhack/simple-c-plus-plus-serializer)

class BitsetClass {
public:
    std::bitset<1> a;
    std::bitset<2> b;
    std::bitset<3> c;

    unsigned int d:1; // need c++20 for default initializers for bitfields
    unsigned int e:2;
    unsigned int f:3;
    BitsetClass(void) { d = 0; e = 0; f = 0; }

    friend std::ostream& operator<<(std::ostream &out,
                                    Bits const m
    {
        out << bits(my.t.a);
        out << bits(my.t.b);
        out << bits(my.t.c);

        std::bitset<6> s(my.t.d | my.t.e << 1 | my.t.f << 3);
        out << bits(s);

        return (out);
    }

    friend std::istream& operator>>(std::istream &in,
                                    Bits my)
    {
        std::bitset<1> a;
        in >> bits(a);
        my.t.a = a;

        in >> bits(my.t.b);
        in >> bits(my.t.c);
        std::bitset<6> s;
        in >> bits(s);

        unsigned long raw_bits = static_cast(s.to_ulong());
        my.t.d = raw_bits & 0b000001;
        my.t.e = (raw_bits & 0b000110) >> 1;
        my.t.f = (raw_bits & 0b111000) >> 3;

        return (in);
    }
};