unsigned int reconcile(vec_uint &v1, vec_uint &v2, set_basic &s,
const set_basic &s1, const set_basic &s2)
{
auto i = s1.begin();
auto j = s2.begin();
unsigned int pos = 0;
// Performs a merge of s1 and s2, and builds up v1 and v2 as translators
// v1[i] and v2[i] is the position of the ith symbol in the new set
// set union
s = s1;
s.insert(s2.begin(), s2.end());
for (auto &it : s) {
if (i != s1.end() and eq(*it, **i)) {
v1.push_back(pos);
i++;
}
if (j != s2.end() and eq(*it, **j)) {
v2.push_back(pos);
j++;
}
pos++;
}
return pos; // return size of the new symbol set
}
void bvisit(const Subs &x) {
set_basic set_ = free_symbols(*x.get_arg());
for (const auto &p: x.get_variables()) {
set_.erase(p);
}
s.insert(set_.begin(), set_.end());
for (const auto &p: x.get_point()) {
p->accept(*this);
}
}
void bvisit(const Symbol &x) {
s.insert(x.rcp_from_this());
}