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https://github.com/wjakob/tbb.git
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Wenzel Jakob
61 lines
2.6 KiB
C++
61 lines
2.6 KiB
C++
/*
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Copyright 2005-2016 Intel Corporation. All Rights Reserved.
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This file is part of Threading Building Blocks. Threading Building Blocks is free software;
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you can redistribute it and/or modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation. Threading Building Blocks is
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distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details. You should have received a copy of
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the GNU General Public License along with Threading Building Blocks; if not, write to the
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Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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As a special exception, you may use this file as part of a free software library without
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restriction. Specifically, if other files instantiate templates or use macros or inline
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functions from this file, or you compile this file and link it with other files to produce
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an executable, this file does not by itself cause the resulting executable to be covered
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by the GNU General Public License. This exception does not however invalidate any other
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reasons why the executable file might be covered by the GNU General Public License.
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*/
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class Matrix {
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static const int n = 20;
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float array[n][n];
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public:
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Matrix() {}
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Matrix( float z ) {
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for( int i=0; i<n; ++i )
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for( int j=0; j<n; ++j )
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array[i][j] = i==j ? z : 0;
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}
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friend Matrix operator-( const Matrix& x ) {
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Matrix result;
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for( int i=0; i<n; ++i )
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for( int j=0; j<n; ++j )
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result.array[i][j] = -x.array[i][j];
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return result;
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}
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friend Matrix operator+( const Matrix& x, const Matrix& y ) {
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Matrix result;
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for( int i=0; i<n; ++i )
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for( int j=0; j<n; ++j )
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result.array[i][j] = x.array[i][j] + y.array[i][j];
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return result;
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}
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friend Matrix operator-( const Matrix& x, const Matrix& y ) {
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Matrix result;
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for( int i=0; i<n; ++i )
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for( int j=0; j<n; ++j )
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result.array[i][j] = x.array[i][j] - y.array[i][j];
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return result;
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}
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friend Matrix operator*( const Matrix& x, const Matrix& y ) {
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Matrix result(0);
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for( int i=0; i<n; ++i )
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for( int k=0; k<n; ++k )
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for( int j=0; j<n; ++j )
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result.array[i][j] += x.array[i][k] * y.array[k][j];
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return result;
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}
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};
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