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add sort stumps for expressions

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-09-24 17:13:53 -07:00
parent 27a27f16ff
commit 705607fba0
8 changed files with 195 additions and 58 deletions
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9
src/math/lp/nex_creator.h
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@ -38,10 +38,13 @@ struct occ {
class nex_creator {
ptr_vector<nex> m_allocated;
std::unordered_map<lpvar, occ> m_occurences_map;
std::unordered_map<lpvar, unsigned> m_powers;
ptr_vector<nex> m_allocated;
std::unordered_map<lpvar, occ> m_occurences_map;
std::unordered_map<lpvar, unsigned> m_powers;
// the "less than" operator on expressions
std::function<bool (const nex*, const nex*)> m_lt;
public:
nex_creator(std::function<bool (const nex*, const nex*)> lt) {}
const std::unordered_map<lpvar, occ>& occurences_map() const { return m_occurences_map; }
std::unordered_map<lpvar, occ>& occurences_map() { return m_occurences_map; }
const std::unordered_map<lpvar, unsigned> & powers() const { return m_powers; }