uwidth_max (3) - Linux Man Pages
uwidth_max: Number of bytes a character can occupy. Allegro game programming library.
NAMEuwidth_max - Number of bytes a character can occupy. Allegro game programming library.
DESCRIPTIONLow level helper function for working with Unicode text data. Returns the largest number of bytes that one character can occupy in the given encoding format. Pass U_CURRENT to represent the current format. Example:
char *temp_buffer = malloc(256 * uwidth_max(U_UTF8));