+
+/** \brief compares two buffers of different size
+ \param a first buffer
+ \param b second buffer
+ \param len_a length of first buffer
+ \retval len_b length of second buffer
+ \retval 0 buffers are equal
+ \retval >0 a > b
+ \retval <0 a < b
+*/
+int yaz_memcmp(const void *a, const void *b, size_t len_a, size_t len_b);
+
+