#include <stdio.h>
#include <mbctype.h>
#include <mbstring.h>

unsigned int chars[] = {
    '.',
    '1',
    'A',
    0x8143, /* double-byte "," */
    0x8183, /* double-byte "<" */
    0x8254, /* double-byte "5" */
    0x8265, /* double-byte "F" */
    0xA6
};

#define SIZE sizeof( chars ) / sizeof( unsigned int )

void main()
  {
    int   i;

    _setmbcp( 932 );
    for( i = 0; i < SIZE; i++ ) {
      printf( "%#6.4x is %sa valid "
            "multibyte hexadecimal digit character\n",
            chars[i],
            ( _ismbcxdigit( chars[i] ) ) ? "" : "not " );
    }
  }