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work on horner

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-07-02 10:37:41 -07:00
parent c040a0b9a5
commit e3a8522885
4 changed files with 76 additions and 80 deletions
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32
src/math/lp/nla_intervals.h
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@ -20,12 +20,15 @@
#pragma once
#include "util/dependency.h"
#include "util/small_object_allocator.h"
#include "math/lp/nla_common.h"
#include "math/lp/lar_solver.h"
#include "math/interval/interval.h"
namespace nla {
class core;
class intervals {
class intervals : common {
class ci_value_manager {
public:
void inc_ref(lp::constraint_index const & v) {
@ -86,8 +89,8 @@ class intervals {
// Getters
mpq const & lower(interval const & a) const { return a.m_lower; }
mpq & lower(interval & a) { return a.m_lower; }
mpq const & upper(interval const & a) const { return a.m_upper; }
mpq & lower(interval & a) { return a.m_lower; }
mpq & upper(interval & a) { return a.m_upper; }
bool lower_is_open(interval const & a) const { return a.m_lower_open; }
bool upper_is_open(interval const & a) const { return a.m_upper_open; }
@ -145,24 +148,21 @@ private:
void set_var_interval_signs(lpvar v, interval & b) const;
void set_var_interval_signs_with_deps(lpvar v, interval & b) const;
void set_var_interval_deps(lpvar v, interval & b) const;
ci_dependency* mk_dep(lp::constraint_index ci) const;
lp::lar_solver& ls();
const lp::lar_solver& ls() const;
public:
intervals(reslimit& lim) :
intervals(core* c, reslimit& lim) :
common(c),
m_alloc("intervals"),
m_dep_manager(m_val_manager, m_alloc),
m_config(m_num_manager, m_dep_manager),
m_imanager(lim, im_config(m_num_manager, m_dep_manager))
{}
bool monomial_has_lower_bound(lpvar j) const;
bool monomial_has_upper_bound(lpvar j) const;
bool product_has_upper_bound(int sign, const svector<lpvar>&) const;
lp::impq get_upper_bound_of_monomial(lpvar j) const;
lp::impq get_lower_bound_of_monomial(lpvar j) const;
interval mul(const svector<lpvar>&) const;
interval mul_signs(const svector<lpvar>&) const;
interval mul_signs_with_deps(const svector<lpvar>&) const;
void get_explanation_of_upper_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const;
@ -175,6 +175,14 @@ public:
void set_lower_is_inf(interval & a, bool inf) { m_config.set_lower_is_inf(a, inf); }
void set_upper_is_open(interval & a, bool strict) { m_config.set_upper_is_open(a, strict); }
void set_upper_is_inf(interval & a, bool inf) { m_config.set_upper_is_inf(a, inf); }
};
bool is_zero(const interval& a) const { return m_config.is_zero(a); }
void mul(const interval& a, const interval& b, interval& c) { m_imanager.mul(a, b, c); }
void add(const interval& a, const interval& b, interval& c) { m_imanager.add(a, b, c); }
void set(interval& a, const interval& b) { m_imanager.set(a, b); }
void mul(const interval& a, const interval& b, interval& c, interval_deps& deps) { m_imanager.mul(a, b, c, deps); }
void add_deps(interval const& a, interval const& b, interval_deps const& deps, interval& i) const {
m_config.add_deps(a, b, deps, i);
}
void set_var_interval_with_deps(lpvar, interval &);
}; // end of intervals
} // end of namespace nla