man uwidth_max () - Number of bytes a character can occupy. Allegro game programming library.
NAME
uwidth_max - Number of bytes a character can occupy. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int uwidth_max(int type);
DESCRIPTION
Low 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));