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change try_patch to a template

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-05-26 14:33:31 -07:00
parent 2710afbea1
commit e5503cdc65
1 changed files with 0 additions and 36 deletions
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36
src/math/lp/lar_solver.cpp
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@ -2435,42 +2435,6 @@ void lar_solver::pivot_column_tableau(unsigned j, unsigned row_index) {
m_mpq_lar_core_solver.m_r_solver.pivot_column_tableau(j, row_index);
m_mpq_lar_core_solver.m_r_solver.change_basis(j, r_basis()[row_index]);
}
#if 0
bool lar_solver::try_to_patch(lpvar j, const mpq& val, const std::function<bool (lpvar)>& blocker, const std::function<void (lpvar)>& report_change) {
if (is_base(j)) {
TRACE("nla_solver", get_int_solver()->display_row_info(tout, row_of_basic_column(j)) << "\n";);
remove_from_basis(j);
}
impq ival(val);
if (!inside_bounds(j, ival) || blocker(j))
return false;
impq delta = get_column_value(j) - ival;
for (const auto &c : A_r().column(j)) {
unsigned row_index = c.var();
const mpq & a = c.coeff();
unsigned rj = m_mpq_lar_core_solver.m_r_basis[row_index];
impq rj_new_val = a * delta + get_column_value(rj);
if (column_is_int(rj) && !rj_new_val.is_int())
return false;
if (!inside_bounds(rj, rj_new_val) || blocker(rj))
return false;
}
set_column_value(j, ival);
report_change(j);
for (const auto &c : A_r().column(j)) {
unsigned row_index = c.var();
const mpq & a = c.coeff();
unsigned rj = m_mpq_lar_core_solver.m_r_basis[row_index];
m_mpq_lar_core_solver.m_r_solver.add_delta_to_x(rj, a * delta);
report_change(rj);
}
return true;
}
#endif
} // namespace lp