Stop using std::binary_function (searchlib).

1 files changed, 1 insertions, 1 deletions

diff --git a/searchlib/src/tests/queryeval/weak_and/rise_wand.h b/searchlib/src/tests/queryeval/weak_and/rise_wand.h
index 87f59eb3d78..7a5e46c05ea 100644
--- a/searchlib/src/tests/queryeval/weak_and/rise_wand.h
+++ b/searchlib/src/tests/queryeval/weak_and/rise_wand.h
@@ -36,7 +36,7 @@ public:
 private:
     // comparator class that compares two streams. The variables a and b are
     // logically indices into the streams vector.
-    class StreamComparator : public std::binary_function<uint16_t, uint16_t, bool>
+    class StreamComparator
     {
     private:
         const docid_t *_streamDocIds;