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49 lines
899 B
C++
49 lines
899 B
C++
#ifndef GRID_MATRIX_UTILS_H
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#define GRID_MATRIX_UTILS_H
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namespace Grid {
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namespace MatrixUtils {
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template<class T> inline void Size(Matrix<T>& A,int &N,int &M){
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N=A.size(); assert(N>0);
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M=A[0].size();
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for(int i=0;i<N;i++){
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assert(A[i].size()==M);
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}
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}
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template<class T> inline void SizeSquare(Matrix<T>& A,int &N)
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{
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int M;
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Size(A,N,M);
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assert(N==M);
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}
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template<class T> inline void Fill(Matrix<T>& A,T & val)
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{
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int N,M;
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Size(A,N,M);
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for(int i=0;i<N;i++){
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for(int j=0;j<M;j++){
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A[i][j]=val;
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}}
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}
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template<class T> inline void Diagonal(Matrix<T>& A,T & val)
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{
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int N;
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SizeSquare(A,N);
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for(int i=0;i<N;i++){
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A[i][i]=val;
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}
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}
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template<class T> inline void Identity(Matrix<T>& A)
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{
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Fill(A,0.0);
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Diagonal(A,1.0);
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}
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};
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}
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#endif
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