3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-29 11:55:51 +00:00
z3/src/util/lp/tail_matrix.h
Lev Nachmanson 3b5337823a extract gomory cut functionality in one method
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

prepare calculate U in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

naive algorithm for HNF and m <= n

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

naive algorithm for HNF

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

introduces reverse matrix into Hermite Normal Form calculation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on more efficient hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use smarter templates in lu.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

the new lu scheme compiles

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simple test passes with the modified lu

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix the build on windows

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

playing with the example from cutting the mix

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf, add extended_gcd_minimal_uv()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on extended_gcd_minimal_uv

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf, add extended_gcd_minimal_uv()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

more tests and bug fixes in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf modulo version

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf modulo version, more tests pass

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

a rough version of hnf passed the tests

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix build in release

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixes in determinant calculations

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

create a stub for hnf_cuts

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

create a stub for hnf_cuts

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

create a stub for hnf_cuts

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

general_matrix etc.

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

general_matrix etc.

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

rename cut_solver to chase_cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

rename cut_solver to chase_cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

hnf_cutter

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2018-06-27 11:39:41 -07:00

50 lines
1.1 KiB
C++

/*++
Copyright (c) 2017 Microsoft Corporation
Module Name:
<name>
Abstract:
<abstract>
Author:
Lev Nachmanson (levnach)
Revision History:
--*/
#pragma once
#include "util/vector.h"
#include "util/lp/indexed_vector.h"
#include "util/lp/matrix.h"
#include "util/lp/lp_settings.h"
// These matrices appear at the end of the list
namespace lp {
template <typename T, typename X>
class tail_matrix
#ifdef Z3DEBUG
: public matrix<T, X>
#endif
{
public:
virtual void apply_from_left_to_T(indexed_vector<T> & w, lp_settings & settings) = 0;
virtual void apply_from_left(vector<X> & w, lp_settings & settings) = 0;
virtual void apply_from_right(vector<T> & w) = 0;
virtual void apply_from_right(indexed_vector<T> & w) = 0;
virtual ~tail_matrix() {}
virtual bool is_dense() const = 0;
struct ref_row {
const tail_matrix & m_A;
unsigned m_row;
ref_row(const tail_matrix& m, unsigned row): m_A(m), m_row(row) {}
T operator[](unsigned j) const { return m_A.get_elem(m_row, j);}
};
ref_row operator[](unsigned i) const { return ref_row(*this, i);}
};
}