Function writeSigned32

mgen-cpplib/src/main/cpp/mgen/serialization/VarInt.h:111–113

template<typename Stream>
inline void writeSigned32(int value, Stream& out) {
    writeUnsigned32((value << 1) ^ (value >> 31), out);
}

template<typename Stream>
inline void writeUnsigned32(unsigned int value, Stream& out) {