otherwise zero is returned
//Declaration: int isxdigit(int ch);
//Return: returns nonzero if ch is a hexadecimal digit;
otherwise zero is returned.
#include
#include
int main(void)
{
char ch;
for(;;) {
ch = getchar();
if(ch == '.'){
break;
}
if(isxdigit(ch))(){
printf("%c is hexadecimal digit\n", ch);
}
}
return 0;
}