+ * Revision 1.19 1998-03-05 08:09:03 adam
+ * Minor change to make C++ happy.
+ *
+ * Revision 1.18 1998/02/11 11:53:36 adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.17 1997/11/24 11:33:57 adam
+ * Using function odr_nullval() instead of global ODR_NULLVAL when
+ * appropriate.
+ *
+ * Revision 1.16 1997/09/29 13:19:00 adam
+ * Added function, oid_ent_to_oid, to replace the function
+ * oid_getoidbyent, which is not thread safe.
+ *
+ * Revision 1.15 1997/09/29 07:13:43 adam
+ * Changed type of a few variables to avoid warnings.
+ *
+ * Revision 1.14 1997/09/22 12:33:41 adam
+ * Fixed bug introduced by previous commit.
+ *
+ * Revision 1.13 1997/09/17 12:10:42 adam
+ * YAZ version 1.4.
+ *
+ * Revision 1.12 1997/09/01 08:54:13 adam
+ * New windows NT/95 port using MSV5.0. Made prefix query handling
+ * thread safe. The function options ignores empty arguments when met.
+ *
+ * Revision 1.11 1996/11/11 13:15:29 adam
+ * Added proximity operator.
+ *
+ * Revision 1.10 1996/08/12 14:10:35 adam
+ * New function p_query_attset to define default attribute set.
+ *
+ * Revision 1.9 1996/03/15 11:03:46 adam
+ * Attribute set can be set globally for a query with the @attrset
+ * operator. The @attr operator has an optional attribute-set specifier
+ * that sets the attribute set locally.
+ *
+ * Revision 1.8 1996/01/02 11:46:56 quinn
+ * Changed 'operator' to 'roperator' to avoid C++ conflict.
+ *
+ * Revision 1.7 1995/09/29 17:12:36 quinn
+ * Smallish
+ *
+ * Revision 1.6 1995/09/27 15:03:03 quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.5 1995/06/15 12:31:02 quinn
+ * *** empty log message ***
+ *
+ * Revision 1.4 1995/06/15 07:45:19 quinn