char *string_list_to_str(char **list, const char *sep); void string_list_print(char **list); char **string_list_reorder(char **list, char *str); char **string_list_move_to_start(char **list, size_t idx); char **string_list_rotate_down(char **list); char **string_list_rotate_up(char **list); char **string_list_prepend(char **list, const char *str);