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Add substitution routine to pdd

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For Grobner we want to preserve directions of intervals for finding sign conflicts. This means that it makes sense to have external control over linear solutions.
This commit is contained in:
Nikolaj Bjorner 2022-07-11 12:10:28 -07:00
parent 5c54d6564b
commit f33c933241
2 changed files with 27 additions and 0 deletions
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6
src/math/dd/dd_pdd.h
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@ -367,6 +367,12 @@ namespace dd {
pdd subst_val(vector<std::pair<unsigned, rational>> const& s) const { return m.subst_val(*this, s); }
pdd subst_val(unsigned v, rational const& val) const { return m.subst_val(*this, v, val); }
/**
* \brief substitute variable v by r.
*/
pdd subst_pdd(unsigned v, pdd const& r) const;
std::ostream& display(std::ostream& out) const { return m.display(out, *this); }
bool operator==(pdd const& other) const { return root == other.root; }
bool operator!=(pdd const& other) const { return root != other.root; }