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Synopsis:
    #include <mbstring.h>
    int _ismbcxdigit( unsigned int ch );

Description:
    The _ismbcxdigit function tests for any multibyte hexadecimal-digit
    character '0' through '9' or 'A' through 'F'.  In code page 932, this
    includes the corresponding double-byte versions of these characters.

Returns:
    The _ismbcxdigit function returns a non-zero value when the argument is
    a hexadecimal-digit character.  Otherwise, zero is returned.


Example:
    #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 " );
        }
      }

    produces the following:

    0x002e is not a valid multibyte hexadecimal digit character
    0x0031 is a valid multibyte hexadecimal digit character
    0x0041 is a valid multibyte hexadecimal digit character
    0x8143 is not a valid multibyte hexadecimal digit character
    0x8183 is not a valid multibyte hexadecimal digit character
    0x8254 is a valid multibyte hexadecimal digit character
    0x8265 is a valid multibyte hexadecimal digit character
    0x00a6 is not a valid multibyte hexadecimal digit character

Classification:
    WATCOM

Systems:
    DOS, Windows, Win386, Win32, OS/2 1.x(all), OS/2-32

See Also:
    _getmbcp, _ismbcalnum, _ismbcalpha, _ismbccntrl, _ismbcdigit,
    _ismbcgraph, _ismbchira, _ismbckata, _ismbcl0, _ismbcl1, _ismbcl2,
    _ismbclegal, _ismbclower, _ismbcprint, _ismbcpunct, _ismbcspace,
    _ismbcsymbol, _ismbcupper, _mbbtype, _setmbcp