65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
|
//=====================================================
|
||
|
|
// File : init_matrix.hh
|
||
|
|
// Author : L. Plagne <laurent.plagne@edf.fr)>
|
||
|
|
// Copyright (C) EDF R&D, lun sep 30 14:23:19 CEST 2002
|
||
|
|
//=====================================================
|
||
|
|
//
|
||
|
|
// This program is free software; you can redistribute it and/or
|
||
|
|
// modify it under the terms of the GNU General Public License
|
||
|
|
// as published by the Free Software Foundation; either version 2
|
||
|
|
// of the License, or (at your option) any later version.
|
||
|
|
//
|
||
|
|
// This program is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU General Public License for more details.
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with this program; if not, write to the Free Software
|
||
|
|
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
//
|
||
|
|
#ifndef INIT_MATRIX_HH
|
||
|
|
#define INIT_MATRIX_HH
|
||
|
|
|
||
|
|
// The Vector class must satisfy the following part of STL vector concept :
|
||
|
|
// resize() method
|
||
|
|
// [] operator for setting element
|
||
|
|
// value_type defined
|
||
|
|
template<double init_function(int,int), class Vector>
|
||
|
|
BTL_DONT_INLINE void init_row(Vector & X, int size, int row){
|
||
|
|
|
||
|
|
X.resize(size);
|
||
|
|
|
||
|
|
for (unsigned int j=0;j<X.size();j++){
|
||
|
|
X[j]=typename Vector::value_type(init_function(row,j));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Matrix is a Vector of Vector
|
||
|
|
// The Matrix class must satisfy the following part of STL vector concept :
|
||
|
|
// resize() method
|
||
|
|
// [] operator for setting rows
|
||
|
|
template<double init_function(int,int),class Vector>
|
||
|
|
BTL_DONT_INLINE void init_matrix(Vector & A, int size){
|
||
|
|
A.resize(size);
|
||
|
|
for (unsigned int row=0; row<A.size() ; row++){
|
||
|
|
init_row<init_function>(A[row],size,row);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
template<double init_function(int,int),class Matrix>
|
||
|
|
BTL_DONT_INLINE void init_matrix_symm(Matrix& A, int size){
|
||
|
|
A.resize(size);
|
||
|
|
for (unsigned int row=0; row<A.size() ; row++)
|
||
|
|
A[row].resize(size);
|
||
|
|
for (unsigned int row=0; row<A.size() ; row++){
|
||
|
|
A[row][row] = init_function(row,row);
|
||
|
|
for (unsigned int col=0; col<row ; col++){
|
||
|
|
double x = init_function(row,col);
|
||
|
|
A[row][col] = A[col][row] = x;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|