#include
using std::cout;
using std::endl;
#include
using std::isalnum;
using std::isalpha;
using std::isdigit;
using std::isxdigit;
int main()
{
cout << "\nAccording to isxdigit:\n"
<< ( isxdigit( 'F' ) ? "F is a" : "F is not a" )
<< " hexadecimal digit\n"
<< ( isxdigit( 'J' ) ? "J is a" : "J is not a" )
<< " hexadecimal digit\n"
<< ( isxdigit( '7' ) ? "7 is a" : "7 is not a" )
<< " hexadecimal digit\n"
<< ( isxdigit( '$' ) ? "$ is a" : "$ is not a" )
<< " hexadecimal digit\n"
<< ( isxdigit( 'f' ) ? "f is a" : "f is not a" )
<< " hexadecimal digit" << endl;
return 0;
}
According to isxdigit:
F is a hexadecimal digit
J is not a hexadecimal digit
7 is a hexadecimal digit
$ is not a hexadecimal digit
f is a hexadecimal digit