From cb819c982adc28c93f68c438bb26283e7eac17e2 Mon Sep 17 00:00:00 2001
From: Enrico Guiraud <enrico.guiraud@cern.ch>
Date: Mon, 9 Jul 2018 23:08:00 +0200
Subject: [PATCH] [DF] Fix warnings relative to PassAsVecHelper

---
 tree/dataframe/inc/ROOT/RDFHelpers.hxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tree/dataframe/inc/ROOT/RDFHelpers.hxx b/tree/dataframe/inc/ROOT/RDFHelpers.hxx
index 3ff582264a7..12f72f67166 100644
--- a/tree/dataframe/inc/ROOT/RDFHelpers.hxx
+++ b/tree/dataframe/inc/ROOT/RDFHelpers.hxx
@@ -35,7 +35,7 @@ std::function<bool(ArgTypes...)> NotHelper(ROOT::TypeTraits::TypeList<ArgTypes..
 }
 
 template <typename I, typename T, typename F>
-struct PassAsVecHelper;
+class PassAsVecHelper;
 
 template <std::size_t ... N, typename T, typename F>
 class PassAsVecHelper<std::index_sequence<N...>, T, F>
-- 
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