[Xapian-tickets] [Xapian] #790: Operators |= and &= with Xapian::Query{}

[Xapian]

#790: Operators |= and &= with Xapian::Query{}
-------------------------+-----------------------------
 Reporter:  dpa-xapian   |             Owner:  olly
     Type:  defect       |            Status:  assigned
 Priority:  normal       |         Milestone:  1.4.12
Component:  Library API  |           Version:  1.4.11
 Severity:  normal       |        Resolution:
 Keywords:               |        Blocked By:
 Blocking:               |  Operating System:  All
-------------------------+-----------------------------

Comment (by dpa-xapian):

 {{{
 #include <stdio.h>
 #include <xapian.h>

 int main() {
   std::vector<std::string> v;
   printf("%i\n", Xapian::Query {Xapian::Query::OP_OR, v.begin(),
 v.end()}.get_type());
 }
 }}}
 prints 103 = LEAF_MATCH_NOTHING, which is problematic if the query is
 later appended with OP_AND to another query.  If v is empty, that query
 will never match.

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Ticket URL: <https://trac.xapian.org/ticket/790#comment:2>
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