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

/* myisdigit: c ‚ª‚P‚O�i�”Žš‚©�H�GASCII‚Ì‚Ý */
int myisdigit(int c)
{
	return( c >= '0' && c <='9' );
}

main()
{
	int c, n;

	for( n = 0, c = 0; c <= 127; c++ )
		if( isprint(c) )
		{
			printf("%02x=%c  ", c, c );
			if( ++n%8 == 0 )
				printf("\n");
		}
	printf("\n");
	for( n = 0, c = 0; c <= 127; c++ )
		if( isdigit(c) && !myisdigit(c) || !isdigit(c) && myisdigit(c) )
		{
			printf("isdigit(%02x)=%02x, myisdigit(%02x)=%02x\n", c, isdigit(c), c, myisdigit(c) );
			n++;
		}
	if( n == 0 )
		printf("myisdigit() is OK!\n");
	else
		printf("myisdigit() is NG!\n");
}

/* end of testmyisdigit.c */