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get cached tv value (#6756)

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Lev Nachmanson 2023-06-08 19:46:38 -07:00 • committed by GitHub
parent f7ec5c5c64
commit 1006955215
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2 changed files with 5 additions and 9 deletions
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12
src/math/lp/lar_solver.cpp
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@ -1034,14 +1034,10 @@ namespace lp {
r += p.coeff() * get_value(p.column());
return r;
}
impq lar_solver::get_tv_ivalue(tv const& t) const {
if (t.is_var())
return get_column_value(t.column());
impq r;
for (lar_term::ival p : get_term(t))
r += p.coeff() * get_column_value(p.column());
return r;
//fetches the cached value of the term or the variable by the given index
const impq& lar_solver::get_tv_ivalue(tv const& t) const {
unsigned j = t.is_var()? (unsigned)t.column(): this->map_term_index_to_column_index(t.index());
return this->get_column_value(j);
}
void lar_solver::get_rid_of_inf_eps() {

2
src/math/lp/lar_solver.h
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@ -506,7 +506,7 @@ public:
bool init_model() const;
mpq get_value(column_index const& j) const;
mpq get_tv_value(tv const& t) const;
impq get_tv_ivalue(tv const& t) const;
const impq & get_tv_ivalue(tv const& t) const;
void get_model(std::unordered_map<var_index, mpq> & variable_values) const;
void get_rid_of_inf_eps();
void get_model_do_not_care_about_diff_vars(std::unordered_map<var_index, mpq> & variable_values) const;