Item Value
Header filectype.h
Declarationint isxdigit(int ch);
Returnreturns nonzero if ch is a hexadecimal digit; otherwise zero is returned.
A hexadecimal digit will be in one of these ranges: A-F, a-f, or 0-9.
#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;
}