Example #1
0
void read_clause(Buffer & in, std::ostream& err, sat::solver & solver, sat::literal_vector & lits) {
    int     parsed_lit;
    int     var;
    
    lits.reset();

    while (true) { 
        parsed_lit = parse_int(in, err);
        if (parsed_lit == 0)
            break;
        var = abs(parsed_lit);
        SASSERT(var > 0);
        while (static_cast<unsigned>(var) >= solver.num_vars())
            solver.mk_var();
        lits.push_back(sat::literal(var, parsed_lit < 0));
    }
}