mirror of
https://github.com/Z3Prover/z3
synced 2025-04-28 11:25:51 +00:00
50 lines
1.1 KiB
C++
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 "math/lp/indexed_vector.h"
|
|
#include "math/lp/matrix.h"
|
|
#include "math/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);}
|
|
};
|
|
}
|