From cc631650c5049f9bb3d2637ea3e0da55e7771bb4 Mon Sep 17 00:00:00 2001
From: Allison Vacanti <allison.vacanti@kitware.com>
Date: Mon, 11 Jun 2018 12:27:54 -0400
Subject: [PATCH] Use thrust::swap for vtkm::Swap in CUDA device code.

---
 vtkm/Swap.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/vtkm/Swap.h b/vtkm/Swap.h
index b870248d0..233266ad2 100644
--- a/vtkm/Swap.h
+++ b/vtkm/Swap.h
@@ -23,7 +23,11 @@
 
 #include <vtkm/internal/ExportMacros.h>
 
+#ifdef __CUDACC__
+#include <thrust/swap.h>
+#else
 #include <algorithm>
+#endif
 
 namespace vtkm
 {
@@ -33,9 +37,8 @@ namespace vtkm
 template <typename T>
 VTKM_EXEC_CONT void Swap(T& a, T& b)
 {
-  T tmp = a;
-  a = b;
-  b = tmp;
+  using namespace thrust;
+  swap(a, b);
 }
 #else
 template <typename T>