#include <stdio.h>

# if 0
int strcmp(const char *str1, const char *str2)
{
	const char *p1, *p2;

	p1 = str1;
	p2 = str2;
	while ((*p1 != 0) && (*p1 == *p2))
	{
		p1++;
		p2++;
	}
	return (*p1 == *p2) ? 0 :
		(*p1 < *p2) ? -1 :
		1;
}
#endif

extern int my_strcmp(const char *str1, const char *str2);

int main(void)
{
	printf("%d\n",my_strcmp("abc","abc"));
	printf("%d\n",my_strcmp("abc","def"));
	printf("%d\n",my_strcmp("def","abc"));
	return 0;
}