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prepare for calling diophantine equations

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Lev Nachmanson 2024-08-13 13:20:45 -10:00 • committed by Lev Nachmanson
parent 097a25ebfe
commit 3d6cc64e2e
3 changed files with 112 additions and 115 deletions
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23
src/math/lp/int_solver.h
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@ -31,7 +31,7 @@ Revision History:
namespace lp {
class lar_solver;
class lar_core_solver;
class patcher;
class int_solver {
friend struct create_cut;
friend class gomory;
@ -39,27 +39,12 @@ class int_solver {
friend class int_branch;
friend class int_gcd_test;
friend class hnf_cutter;
class patcher {
int_solver& lia;
lar_solver& lra;
lar_core_solver& lrac;
public:
patcher(int_solver& lia);
bool should_apply() const { return true; }
lia_move operator()() { return patch_basic_columns(); }
void patch_basic_column(unsigned j);
bool try_patch_column(unsigned v, unsigned j, mpq const& delta);
unsigned count_non_int();
private:
bool patch_basic_column_on_row_cell(unsigned v, row_cell<mpq> const& c);
lia_move patch_basic_columns();
};
friend class imp;
lar_solver& lra;
lar_core_solver& lrac;
int_gcd_test m_gcd;
patcher m_patcher;
imp *m_imp;
unsigned m_number_of_calls;
lar_term m_t; // the term to return in the cut
mpq m_k; // the right side of the cut
@ -72,7 +57,7 @@ class int_solver {
vector<equality> m_equalities;
public:
int_solver(lar_solver& lp);
~int_solver();
// main function to check that the solution provided by lar_solver is valid for integral values,
// or provide a way of how it can be adjusted.
lia_move check(explanation *);