402  * Maximum age of any character in s.
409 	int		age = 0;  in utf8agemax()  local
422 		if (leaf_age <= data->maxage && leaf_age > age)  in utf8agemax()
423 			age = leaf_age;  in utf8agemax()
426 	return age;  in utf8agemax()
431  * Minimum age of any character in s.
438 	int		age;  in utf8agemin()  local
444 	age = data->maxage;  in utf8agemin()
450 		if (leaf_age <= data->maxage && leaf_age < age)  in utf8agemin()
451 			age = leaf_age;  in utf8agemin()
454 	return age;  in utf8agemin()
459  * Maximum age of any character in s, touch at most len bytes.
465 	int		age = 0;  in utf8nagemax()  local
477 		if (leaf_age <= data->maxage && leaf_age > age)  in utf8nagemax()
478 			age = leaf_age;  in utf8nagemax()
482 	return age;  in utf8nagemax()
487  * Maximum age of any character in s, touch at most len bytes.
494 	int		age;  in utf8nagemin()  local
499 	age = data->maxage;  in utf8nagemin()
505 		if (leaf_age <= data->maxage && leaf_age < age)  in utf8nagemin()
506 			age = leaf_age;  in utf8nagemin()
510 	return age;  in utf8nagemin()