48 lines
894 B
C++
48 lines
894 B
C++
#ifndef _transpose_n_
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#define _transpose_n_
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#include "./utils/matrix.h"
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namespace numerics{
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template <typename T>
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void inplace_transpose(utils::Matrix<T>& A){
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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if (rows != cols){
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throw std::runtime_error("inplace_transpose only valid for square matrices");
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}
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for (uint64_t i = 0; i < rows; ++i){
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for (uint64_t j = i + 1; j < cols; ++j){
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T tmp = A(j,i);
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A(j,i) = A(i,j);
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A(i,j) = tmp;
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//std::swap(A(j,i), A(i,j));
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}
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}
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}
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template <typename T>
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utils::Matrix<T> transpose(const utils::Matrix<T>& A){
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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utils::Matrix<T> B(cols, rows, T{});
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for (uint64_t i = 0; i < rows; ++i){
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for (uint64_t j = 0; j < cols; ++j){
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B(j,i) = A(i,j);
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}
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}
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return B;
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}
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} // namespace numerics
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#endif // _transpose_n_
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