| /* |
| Copyright 2005-2010 Intel Corporation. All Rights Reserved. |
| |
| This file is part of Threading Building Blocks. |
| |
| Threading Building Blocks is free software; you can redistribute it |
| and/or modify it under the terms of the GNU General Public License |
| version 2 as published by the Free Software Foundation. |
| |
| Threading Building Blocks 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 Threading Building Blocks; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| As a special exception, you may use this file as part of a free software |
| library without restriction. Specifically, if other files instantiate |
| templates or use macros or inline functions from this file, or you compile |
| this file and link it with other files to produce an executable, this |
| file does not by itself cause the resulting executable to be covered by |
| the GNU General Public License. This exception does not however |
| invalidate any other reasons why the executable file might be covered by |
| the GNU General Public License. |
| */ |
| |
| class Matrix { |
| static const int n = 10; |
| float array[n][n]; |
| public: |
| Matrix() {} |
| Matrix( float z ) { |
| for( int i=0; i<n; ++i ) |
| for( int j=0; j<n; ++j ) |
| array[i][j] = i==j ? z : 0; |
| } |
| friend Matrix operator-( const Matrix& x ) { |
| Matrix result; |
| for( int i=0; i<n; ++i ) |
| for( int j=0; j<n; ++j ) |
| result.array[i][j] = -x.array[i][j]; |
| return result; |
| } |
| friend Matrix operator+( const Matrix& x, const Matrix& y ) { |
| Matrix result; |
| for( int i=0; i<n; ++i ) |
| for( int j=0; j<n; ++j ) |
| result.array[i][j] = x.array[i][j] + y.array[i][j]; |
| return result; |
| } |
| friend Matrix operator-( const Matrix& x, const Matrix& y ) { |
| Matrix result; |
| for( int i=0; i<n; ++i ) |
| for( int j=0; j<n; ++j ) |
| result.array[i][j] = x.array[i][j] - y.array[i][j]; |
| return result; |
| } |
| friend Matrix operator*( const Matrix& x, const Matrix& y ) { |
| Matrix result(0); |
| for( int i=0; i<n; ++i ) |
| for( int k=0; k<n; ++k ) |
| for( int j=0; j<n; ++j ) |
| result.array[i][j] += x.array[i][k] * y.array[k][j]; |
| return result; |
| } |
| }; |