* \param [out] beginOut valid only if \a arr not NULL !
* \param [out] endOut valid only if \a arr not NULL !
* \param [out] stepOut valid only if \a arr not NULL !
* \param [out] beginOut valid only if \a arr not NULL !
* \param [out] endOut valid only if \a arr not NULL !
* \param [out] stepOut valid only if \a arr not NULL !