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helper functions to add constraints to univariate_solver

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This commit is contained in:
Jakob Rath 2022-03-17 14:06:18 +01:00
parent edeba9b56a
commit 9d47d7959d
10 changed files with 52 additions and 4 deletions
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10
src/math/polysat/constraint.h
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@ -17,6 +17,7 @@ Author:
#include "math/polysat/types.h"
#include "math/polysat/interval.h"
#include "math/polysat/search_state.h"
#include "math/polysat/univariate/univariate_solver.h"
namespace polysat {
@ -213,9 +214,12 @@ namespace polysat {
void unset_mark() { m_is_marked = false; }
bool is_marked() const { return m_is_marked; }
bool is_active() const { return m_is_active; }
void set_active(bool f) { m_is_active = f; }
/// Assuming the constraint is univariate under the current assignment of 's',
/// adds the constraint to the univariate solver 'us'.
virtual void add_to_univariate_solver(solver& s, univariate_solver& us, unsigned dep, bool is_positive) const = 0;
};
inline std::ostream& operator<<(std::ostream& out, constraint const& c) { return c.display(out); }
@ -256,10 +260,11 @@ namespace polysat {
void narrow(solver& s, bool first) { get()->narrow(s, is_positive(), first); }
inequality as_inequality() const { return get()->as_inequality(is_positive()); }
void add_to_univariate_solver(solver& s, univariate_solver& us, unsigned dep) const { get()->add_to_univariate_solver(s, us, dep, is_positive()); }
sat::bool_var bvar() const { return m_constraint->bvar(); }
sat::literal blit() const { return sat::literal(bvar(), is_negative()); }
constraint* get() const { return m_constraint; }
explicit operator bool() const { return !!m_constraint; }
bool operator!() const { return !m_constraint; }
@ -270,7 +275,6 @@ namespace polysat {
bool is_eq() const;
pdd const& eq() const;
signed_constraint& operator=(std::nullptr_t) { m_constraint = nullptr; return *this; }
unsigned hash() const {