ISXDIGIT FUNCTION

#include <stdio.h>

int main() {

  if( isxdigit( 'Z' ) )
  {
     printf( "Character Z is Hexa digit\n" );
  }
  if( isxdigit( 'A' ) )
  {
     printf( "Character A is Hexa digit\n" );
  }
  
  getchar();
  return 0;
}