1//=====================================================
2// File   :  tiny_blitz_interface.hh
3// Author :  L. Plagne <laurent.plagne@edf.fr)>
4// Copyright (C) EDF R&D,  lun sep 30 14:23:30 CEST 2002
5//=====================================================
6//
7// This program is free software; you can redistribute it and/or
8// modify it under the terms of the GNU General Public License
9// as published by the Free Software Foundation; either version 2
10// of the License, or (at your option) any later version.
11//
12// This program is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16// You should have received a copy of the GNU General Public License
17// along with this program; if not, write to the Free Software
18// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19//
20#ifndef TINY_BLITZ_INTERFACE_HH
21#define TINY_BLITZ_INTERFACE_HH
22
23#include "blitz/array.h"
24#include "blitz/tiny.h"
25#include "blitz/tinymat.h"
26#include "blitz/tinyvec.h"
27#include <blitz/tinyvec-et.h>
28
29#include <vector>
30
31BZ_USING_NAMESPACE(blitz)
32
33template<class real, int SIZE>
34class tiny_blitz_interface
35{
36
37public :
38
39  typedef real real_type ;
40
41  typedef std::vector<real>  stl_vector;
42  typedef std::vector<stl_vector > stl_matrix;
43
44  typedef TinyVector<real,SIZE> gene_vector;
45  typedef TinyMatrix<real,SIZE,SIZE> gene_matrix;
46
47  static inline std::string name() { return "tiny_blitz"; }
48
49  static void free_matrix(gene_matrix & A, int N){}
50
51  static void free_vector(gene_vector & B){}
52
53  static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){
54    for (int j=0; j<A_stl.size() ; j++)
55      for (int i=0; i<A_stl[j].size() ; i++)
56        A(i,j)=A_stl[j][i];
57  }
58
59  static inline void vector_from_stl(gene_vector & B, stl_vector & B_stl){
60    for (int i=0; i<B_stl.size() ; i++)
61      B(i) = B_stl[i];
62  }
63
64  static inline void vector_to_stl(gene_vector & B, stl_vector & B_stl){
65    for (int i=0; i<B_stl.size() ; i++)
66      B_stl[i] = B(i);
67  }
68
69  static inline void matrix_to_stl(gene_matrix & A, stl_matrix & A_stl){
70    int N = A_stl.size();
71    for (int j=0;j<N;j++)
72    {
73      A_stl[j].resize(N);
74      for (int i=0;i<N;i++)
75        A_stl[j][i] = A(i,j);
76    }
77  }
78
79  static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){
80    for (int j=0;j<N;j++)
81      for (int i=0;i<N;i++)
82        cible(i,j) = source(i,j);
83  }
84
85  static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){
86    for (int i=0;i<N;i++){
87      cible(i) = source(i);
88    }
89  }
90
91  static inline void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
92    X = product(A,B);
93  }
94
95  static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
96    X = product(A,B);
97  }
98
99  static inline void axpy(const real coef, const gene_vector & X, gene_vector & Y, int N){
100    Y += coef * X;
101  }
102
103};
104
105
106#endif
107