mv util/lp to math/lp

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

src/math/lp/matrix.h

@@ -0,0 +1,71 @@
+/*++
+Copyright (c) 2017 Microsoft Corporation
+
+Module Name:
+
+    <name>
+
+Abstract:
+
+    <abstract>
+
+Author:
+
+    Lev Nachmanson (levnach)
+
+Revision History:
+
+
+--*/
+#pragma once
+#include "math/lp/numeric_pair.h"
+#include "util/vector.h"
+#include <string>
+#include "math/lp/lp_settings.h"
+namespace lp {
+// used for debugging purposes only
+template <typename T, typename X>
+class matrix {
+public:
+    virtual T get_elem (unsigned i, unsigned j) const = 0;
+    virtual unsigned row_count() const  = 0;
+    virtual unsigned column_count() const = 0;
+    virtual void set_number_of_rows(unsigned m)  = 0;
+    virtual void set_number_of_columns(unsigned n) = 0;
+
+    virtual ~matrix() {}
+
+    bool is_equal(const matrix<T, X>& other);
+    bool operator == (matrix<T, X> const & other) {
+        return is_equal(other);
+    }
+    T operator()(unsigned i, unsigned j) const { return get_elem(i, j); }
+};
+
+template <typename T, typename X>
+void apply_to_vector(matrix<T, X> & m, T * w);
+
+
+
+unsigned get_width_of_column(unsigned j, vector<vector<std::string>> & A);
+void print_matrix_with_widths(vector<vector<std::string>> & A, vector<unsigned> & ws, std::ostream & out, unsigned blanks = 0);
+void print_string_matrix(vector<vector<std::string>> & A, std::ostream &, unsigned blanks_in_front = 0);
+
+template <typename T, typename X>
+void print_matrix(matrix<T, X> const * m, std::ostream & out);
+
+
+template <typename T>
+void print_matrix(const vector<vector<T>> & A, std::ostream & out, unsigned blanks_in_front = 0) {
+    vector<vector<std::string>> s(A.size());
+    for (unsigned i = 0; i < A.size(); i++) {
+        for (const auto & v : A[i]) {
+            s[i].push_back(T_to_string(v));
+        }
+    }
+
+    print_string_matrix(s, out, blanks_in_front);
+}
+
+
+}