Returns a copy of `*this` with updated offset.

These constants are endian-agnostic

Extract all the necessary information

add_pointer. * Adds an existing pointer to the map and returns the virtual pointer id. */

\returns A const reference to the vectors containing the alpha values * * This vector permits to reconstruct the j-th eigenvalues as alpha

\returns A const reference to the vectors containing the beta values * * This vector permits to reconstruct the j-th eigenvalues as alphas

\returns the number of columns grouped by blocks */

* \returns the starting position of the block \p id in the array of values */