ncurses_has_il Check for line insert- and delete-capabilities &reftitle.description; boolncurses_has_il &warn.experimental.func; Checks whether the terminal has insert- and delete-line-capabilities. &reftitle.returnvalues; Returns &true; if the terminal has insert/delete-line capabilities, &false; otherwise. &reftitle.seealso; ncurses_has_ic