static field_pt create_logic_constraint(field_pt &a, field_pt &b, size_t num_bits, bool is_xor_gate, const std::function< std::pair< uint256_t, uint256_t >(uint256_t, uint256_t, size_t)> &get_chunk=[](uint256_t left, uint256_t right, size_t chunk_size) { uint256_t left_chunk=left &((uint256_t(1)<< chunk_size) - 1);uint256_t right_chunk=right &((uint256_t(1)<< chunk_size) - 1);return std::make_pair(left_chunk, right_chunk);})
A logical AND or XOR over a variable number of bits.