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From aca97f4b7fd24e1bd80127dbf35b25980d652073 Mon Sep 17 00:00:00 2001
From: Andreas Beckmann <anbe@debian.org>
Date: Thu, 11 Sep 2025 15:41:32 +0200
Subject: [PATCH] restore host_device.h
---
thrust/thrust/detail/config/config.h | 1 +
thrust/thrust/detail/config/host_device.h | 52 +++++++++++++++++++++++
2 files changed, 53 insertions(+)
create mode 100644 thrust/thrust/detail/config/host_device.h
--- a/thrust/thrust/detail/config/config.h
+++ b/thrust/thrust/detail/config/config.h
@@ -42,6 +42,7 @@
// because other config headers depend on it
#include <thrust/detail/config/host_system.h>
#include <thrust/detail/config/device_system.h>
+#include <thrust/detail/config/host_device.h>
#include <thrust/detail/config/debug.h>
#include <thrust/detail/config/global_workarounds.h>
#include <thrust/detail/config/namespace.h>
--- /dev/null
+++ b/thrust/thrust/detail/config/host_device.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2008-2013 NVIDIA Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*! \file host_device.h
+ * \brief Defines __host__ and __device__
+ */
+
+#pragma once
+
+// Internal config header that is only included through thrust/detail/config/config.h
+
+#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
+# pragma GCC system_header
+#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
+# pragma clang system_header
+#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
+# pragma system_header
+#endif // no system header
+
+// since nvcc defines __host__ and __device__ for us,
+// and only nvcc knows what to do with __host__ and __device__,
+// define them to be the empty string for other compilers
+
+#if THRUST_DEVICE_COMPILER != THRUST_DEVICE_COMPILER_NVCC
+
+// since __host__ & __device__ might have already be defined, only
+// #define them if not defined already
+// XXX this will break if the client does #include <host_defines.h> later
+
+#ifndef __host__
+#define __host__
+#endif // __host__
+
+#ifndef __device__
+#define __device__
+#endif // __device__
+
+#ifndef __forceinline__
+#define __forceinline__ inline
+#endif // __forceinline__
+
+#endif
+
--- a/thrust/testing/unique_by_key.cu
+++ b/thrust/testing/unique_by_key.cu
@@ -492,9 +492,6 @@ struct TestUniqueCopyByKeyLargeOutCount
{
void operator()()
{
- using type = std::int32_t;
- using index_type = std::int64_t;
-
constexpr std::size_t num_items = 4400000000ULL;
auto keys_in = thrust::make_counting_iterator(0ULL);
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