Initial revision

lang/cem/libcc.ansi/string/memchr.c

@@ -0,0 +1,21 @@
+/*
+ * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ * See the copyright notice in the ACK home directory, in the file "Copyright".
+ */
+/* $Header$ */
+
+#include	<string.h>
+
+void *
+memchr(const void *s, int c, register size_t n)
+{
+	register unsigned char *s1 = (unsigned char *)s;
+	unsigned char c1 = (unsigned char) c;
+	
+	while (n > 0) {
+		n--;
+		if (*s1++ == c1)
+			return (void *) --s1;
+	}
+	return (void *) NULL;
+}