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

uisdigit - Tells if a character is a digit. Allegro game programming library.

#include <allegro.h>

int uisdigit(int c);

Returns nonzero if `c' is a digit.


for (counter = 0; counter < ustrlen(text_string); counter++) {
if (uisdigit(ugetat(text_string, counter)))
usetat(text_string, counter, '*');
}

uisspace(3alleg4), ugetc(3alleg4), usetc(3alleg4), uwidth(3alleg4), ucwidth(3alleg4), uisok(3alleg4)

version 4.4.2 Allegro