X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=libcds%2Fsrc%2Fstatic_bitsequence%2Fsdarray.cpp;h=cd46b665ebbe6aadbddd9f1c7251f12dfd7a78e8;hb=a99449f19289d6b44eaac26d62eb21b21741b593;hp=58b72e0500c9b0fd80969d51a45bc855bac8e2e8;hpb=137f5dd42abc5afe132ef3f45dcb7f2bf2b595db;p=SXSI%2FXMLTree.git

diff --git a/libcds/src/static_bitsequence/sdarray.cpp b/libcds/src/static_bitsequence/sdarray.cpp
index 58b72e0..cd46b66 100644
--- a/libcds/src/static_bitsequence/sdarray.cpp
+++ b/libcds/src/static_bitsequence/sdarray.cpp
@@ -649,6 +649,9 @@ int selects3_construct(selects3 *select, int n, uint *buf) {
   return 0;
 }
 
+//selects3 * lasts3=NULL;
+//int lasti=0;
+//int lasts=0;
 
 int selects3_select(selects3 *select, int i) {
   int d,x;
@@ -663,16 +666,22 @@ int selects3_select(selects3 *select, int i) {
   if (i == 0) return -1;
 
   d = select->d;
-
-  x = selectd2_select(select->sd1,i,1) - (i-1);
-  x <<= d;
+	if(select->lasti==(uint)i-1) {
+		while(!__getbit2(select->sd1->buf,++select->lasti));
+	} 
+	else {
+	  select->lasts = selectd2_select(select->sd1,i,1);
+	}
+	select->lasti = i;
+	//lasts3 = select;
+  x = (select->lasts-(i-1)) << d;
   x += __getbits(select->low,(i-1)*d,d);
   return x;
-
 }
 
 
 int selects3_selectnext(selects3 *select, int i) {
+	return selects3_select(select,selects3_rank(select,i)+1);
   int d,x,w,y;
   int r,j;
   int z,ii;