anchor.diff:        // this search term part, search topic texts
   
         LogEvent(LogSearch, '  Dictionary search done' );
  -      ClearUInt32Array( TopicsMatchingTermPart,
  -                        TopicCount );
  +      ClearUInt32Array( TopicsMatchingTermPart, TopicCount );
   
         for DictIndex := 0 to HelpFile.DictionaryCount - 1 do
         begin
  
positive.code:   WordSequences.Clear;
  end;
  
  // given a search word which is known to matche Reference word,
  // return the relevance
  function MatchedWordRelevance( const SearchWord: string;
                                 const ReferenceWord: string ): longint;
  
negative.code:   AllocUInt32Array( TopicsExcluded, // Exclusions are treated as boolean only
                      TopicCount );
  
    ClearUInt32Array( TopicRelevances, TopicCount );
    ClearUInt32Array( TopicsExcluded, TopicCount );
  
    for TermIndex := 0 to Query.TermCount - 1 do
    begin
  