fix compiler error on 32bit arches
fix compiler error on 32bit arches

gigablast/open-source-search-engine,gigablast/open-source-search-engine,gigablast/open-source-search-engine,gigablast/open-source-search-engine,gigablast/open-source-search-engine,gigablast/open-source-search-engine,gigablast/open-source-search-engine