literalt qbf_bdd_certificatet::new_variable(void)
{
literalt l=qdimacs_coret::new_variable();
if(!is_quantified(l))
add_quantifier(quantifiert::EXISTENTIAL, l);
return l;
}
void qdimacs_cnft::set_quantifier(
const quantifiert::typet type,
const literalt l)
{
for(quantifierst::iterator it=quantifiers.begin();
it!=quantifiers.end();
it++)
if(it->var_no==l.var_no())
{
it->type=type;
return;
}
// variable not found - let's add a new quantifier.
add_quantifier(type, l);
}
