DOKK / manpages / debian 10 / allegro4-doc / ustrlen.3alleg4.en
ustrlen(3alleg4) Allegro manual ustrlen(3alleg4)

ustrlen - Tells the number of characters in a string. Allegro game programming library.

#include <allegro.h>

int ustrlen(const char *s);

This function returns the number of characters in `s'. Note that this doesn't have to equal the string's size in bytes.

uconvert(3alleg4), ustrsize(3alleg4), ustrsizez(3alleg4)

version 4.4.2 Allegro