Added a non-const overload DelayedTranspose constructor.

include/tatami/other/DelayedTranspose.hpp

@@ -27,10 +27,15 @@ template<typename Value_, typename Index_>
 class DelayedTranspose : public Matrix<Value_, Index_> {
 public:
     /**
-     * @param matrix Pointer to the underlying (pre-transpose) matrix.
+     * @param matrix Pointer to the matrix to be transposed.
      */
     DelayedTranspose(std::shared_ptr<const Matrix<Value_, Index_> > matrix) : my_matrix(std::move(matrix)) {}
 
+    /**
+     * @param matrix Pointer to the matrix to be transposed.
+     */
+    DelayedTranspose(std::shared_ptr<Matrix<Value_, Index_> > matrix) : my_matrix(std::move(matrix)) {}
+
 private:
     std::shared_ptr<const Matrix<Value_, Index_> > my_matrix;