man ucwidth (3): Low level helper function for testing Unicode text data. Allegro game programming library.

ucwidth(3) Low level helper function for testing Unicode text data. Allegro game programming library.

SYNOPSIS

#include <allegro.h>

int ucwidth(int c);

Low level helper function for testing Unicode text data.

Returns the number of bytes that would be occupied by the specified character value, when encoded in the current format.