+/** MEMory search for CHaRacter. Searches a memory area for a character.
+ * @param src The memory area.
+ * @param c The character to look for.
+ * @param n Number of characters to search.
+ * @return A pointer to the first occurrence of c in src, or NULL if no match
+ * found.
+ * @see strchr()
+ */
+void * memchr( const void * s, int c, size_t n );
+
+/** MEMory CoMPare. Compares two memory areas until a difference is found.
+ * This implementation actually returns the difference of the first differing
+ * byte.
+ * This behaviour is implementation-defined and should not be relied upon to
+ * keep your code portable across implementations.
+ * @param src_1 The first memory area.
+ * @param src_2 The second memory area.
+ * @param n Number of bytes to compare.
+ * @return 0, if both areas are identical. If a difference is found, returns a
+ * value < 0 if the byte from memory area src_1 is smaller than that
+ * from src_2, or > 0 if otherwise.
+ * @see strncmp()
+ */