#define list_prepend(list, e) {sizeof((list)->next);list_prepend_(&(list),(e));}
#define list_free(list) {sizeof((list)->next);list_free_(&(list));}
#define list_deep_free(list) {sizeof((list)->next);list_deep_free_(&(list));}
#define list_prepend(list, e) {sizeof((list)->next);list_prepend_(&(list),(e));}
#define list_free(list) {sizeof((list)->next);list_free_(&(list));}
#define list_deep_free(list) {sizeof((list)->next);list_deep_free_(&(list));}