From c7ed68cd71ab48ea017e4674f1e8f0c524f4a1e7 Mon Sep 17 00:00:00 2001
From: Jake Hemstad <jhemstad@nvidia.com>
Date: Wed, 31 Mar 2021 15:11:48 -0500
Subject: [PATCH] Use actual variadic template.

---
 cpp/include/cudf/detail/gather.cuh  | 4 ++--
 cpp/include/cudf/detail/scatter.cuh | 4 ++--
 cpp/src/copying/copy.cu             | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/cpp/include/cudf/detail/gather.cuh b/cpp/include/cudf/detail/gather.cuh
index 0803e74d19d..936c6d9307c 100644
--- a/cpp/include/cudf/detail/gather.cuh
+++ b/cpp/include/cudf/detail/gather.cuh
@@ -142,8 +142,8 @@ void gather_helper(InputItr source_itr,
 // Error case when no other overload or specialization is available
 template <typename Element, typename Enable = void>
 struct column_gatherer_impl {
-  template <typename...>
-  std::unique_ptr<column> operator()(...)
+  template <typename... Args>
+  std::unique_ptr<column> operator()(Args&&...)
   {
     CUDF_FAIL("Unsupported type in gather.");
   }
diff --git a/cpp/include/cudf/detail/scatter.cuh b/cpp/include/cudf/detail/scatter.cuh
index 40235e4f001..b51c44772b5 100644
--- a/cpp/include/cudf/detail/scatter.cuh
+++ b/cpp/include/cudf/detail/scatter.cuh
@@ -81,8 +81,8 @@ auto scatter_to_gather(MapIterator scatter_map_begin,
 
 template <typename Element, typename Enable = void>
 struct column_scatterer_impl {
-  template <typename...>
-  std::unique_ptr<column> operator()(...) const
+  template <typename... Args>
+  std::unique_ptr<column> operator()(Args&&...) const
   {
     CUDF_FAIL("Unsupported type for scatter.");
   }
diff --git a/cpp/src/copying/copy.cu b/cpp/src/copying/copy.cu
index f6ab26c85b8..fecf7d18d46 100644
--- a/cpp/src/copying/copy.cu
+++ b/cpp/src/copying/copy.cu
@@ -31,8 +31,8 @@ namespace {
 
 template <typename T, typename Enable = void>
 struct copy_if_else_functor_impl {
-  template <typename...>
-  std::unique_ptr<column> operator()(...)
+  template <typename... Args>
+  std::unique_ptr<column> operator()(Args&&...)
   {
     CUDF_FAIL("Unsupported type for copy_if_else.");
   }