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

const unsigned char chars[] = {
    ' ',
    '.',
    '1',
    'A',
    0x81,0x40, /* double-byte space */
    0x82,0x60, /* double-byte A */
    0x82,0xA6, /* double-byte Hiragana */
    0x83,0x42, /* double-byte Katakana */
    0xA1,      /* single-byte Katakana punctuation */
    0xA6,      /* single-byte Katakana alphabetic */
    0xDF,      /* single-byte Katakana alphabetic */
    0xE0,0xA1, /* double-byte Kanji */
    0x00
};

#define SIZE sizeof( chars ) / sizeof( char )

void main()
  {
    int   i;

    _setmbcp( 932 );
    for( i = 0; i < SIZE; i++ ) {
      printf( "%2.2x is %sa valid lead byte\n",
            chars[i],
            ( isleadbyte( chars[i] ) ) ? "" : "not " );
    }
  }