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a simple version of choosing a column for gomory cut

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This commit is contained in:
Lev Nachmanson 2023-12-04 15:06:50 -10:00
parent f98b42ae42
commit fc23a498c4
6 changed files with 90 additions and 96 deletions
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5
src/math/lp/lar_solver.h
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@ -532,6 +532,11 @@ public:
inline const impq& get_lower_bound(column_index j) const {
return m_mpq_lar_core_solver.m_r_solver.m_lower_bounds[j];
}
inline mpq bound_span_x(column_index j) const {
return m_mpq_lar_core_solver.m_r_solver.m_upper_bounds[j].x - m_mpq_lar_core_solver.m_r_solver.m_lower_bounds[j].x;
}
bool has_lower_bound(var_index var, u_dependency*& ci, mpq& value, bool& is_strict) const;
bool has_upper_bound(var_index var, u_dependency*& ci, mpq& value, bool& is_strict) const;
bool has_value(var_index var, mpq& value) const;