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We need more clause names

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This commit is contained in:
Jakob Rath 2023-02-03 15:51:53 +01:00
parent bdf20f513b
commit 5678c1c592
5 changed files with 42 additions and 26 deletions
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22
src/math/polysat/clause_builder.h
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@ -23,30 +23,32 @@ Notes:
namespace polysat {
class clause_builder {
solver* m_solver;
sat::literal_vector m_literals;
solver* m_solver;
sat::literal_vector m_literals;
/// True iff clause contains a literal that is always true
/// (only this specific case of tautology is covered by this flag)
bool m_is_tautology = false;
bool m_redundant = clause::redundant_default;
bool m_is_tautology = false;
bool m_redundant = clause::redundant_default;
char const* m_name;
solver& s() const { return *m_solver; }
public:
clause_builder(solver& s);
clause_builder(clause_builder const& s) = delete;
clause_builder(clause_builder&& s) = default;
clause_builder& operator=(clause_builder const& s) = delete;
clause_builder& operator=(clause_builder&& s) = default;
clause_builder(solver& s, char const* name = "");
clause_builder(clause_builder const&) = delete;
clause_builder(clause_builder&&) = default;
clause_builder& operator=(clause_builder const&) = delete;
clause_builder& operator=(clause_builder&&) = default;
bool empty() const { return m_literals.empty() && !m_is_tautology && m_redundant == clause::redundant_default; }
void reset();
void set_redundant(bool r) { m_redundant = r; }
void set_name(char const* name) { m_name = name; }
/// Build the clause. This will reset the clause builder so it can be reused.
/// Returns nullptr if the clause is a tautology and should not be added to the solver.
clause_ref build();
[[nodiscard]] clause_ref build();
/// Insert constraints into the clause.
void insert(sat::literal lit);