From 2f1e9cc3bd45b814c3a0f70aae6686e19fa6227c Mon Sep 17 00:00:00 2001
From: Isaac Deutsch <55233695+nvibd@users.noreply.github.com>
Date: Tue, 8 Sep 2020 16:52:33 +0200
Subject: [PATCH] Fix ambiguous overload when using partition with STL
 containers

---
 thrust/system/detail/sequential/partition.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/thrust/system/detail/sequential/partition.h b/thrust/system/detail/sequential/partition.h
index 66996d637..4604fecfa 100644
--- a/thrust/system/detail/sequential/partition.h
+++ b/thrust/system/detail/sequential/partition.h
@@ -95,7 +95,8 @@ __host__ __device__
   {
     if(wrapped_pred(*next))
     {
-      iter_swap(first, next);
+      // Fully qualify name to disambiguate overloads found via ADL.
+      ::thrust::system::detail::sequential::iter_swap(first, next);
       ++first;
     }
   }
@@ -143,7 +144,8 @@ __host__ __device__
   {
     if(wrapped_pred(*stencil_first))
     {
-      iter_swap(first, next);
+      // Fully qualify name to disambiguate overloads found via ADL.
+      ::thrust::system::detail::sequential::iter_swap(first, next);
       ++first;
     }