/* strrchr function */
#include <string.h>

char *(strrchr)(const char *s, int c)
	{	/* find last occurrence of c in char s[] */
	const char ch = c;
	const char *sc;

	for (sc = NULL; ; ++s)
		{	/* check another char */
		if (*s == ch)
			sc = s;
		if (*s == '\0')
			return ((char *)sc);
		}
	}

