Extract transform iterator. (#8498)

2022-12-05 21:37:07 +08:00
parent d8544e4d9e
commit e3bf5565ab
9 changed files with 118 additions and 71 deletions
--- a/src/data/gradient_index.h
+++ b/src/data/gradient_index.h
@@ -15,6 +15,7 @@
 #include "../common/hist_util.h"
 #include "../common/numeric.h"
 #include "../common/threading_utils.h"
+#include "../common/transform_iterator.h"  // MakeIndexTransformIter
 #include "adapter.h"
 #include "proxy_dmatrix.h"
 #include "xgboost/base.h"