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58 lines
1.3 KiB
58 lines
1.3 KiB
/* |
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* Copyright 2008-2012 NVIDIA Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#pragma once |
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#include <thrust/detail/config.h> |
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namespace thrust |
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{ |
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namespace system |
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{ |
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namespace cuda |
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{ |
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namespace detail |
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{ |
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template<typename T> |
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class extern_shared_ptr |
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{ |
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// don't attempt to compile with any compiler other than nvcc |
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// due to use of __shared__ below |
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#if THRUST_DEVICE_COMPILER == THRUST_DEVICE_COMPILER_NVCC |
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public: |
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__device__ |
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inline operator T * (void) |
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{ |
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extern __shared__ int4 smem[]; |
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return reinterpret_cast<T*>(smem); |
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} |
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__device__ |
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inline operator const T * (void) const |
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{ |
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extern __shared__ int4 smem[]; |
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return reinterpret_cast<const T*>(smem); |
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} |
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#endif // THRUST_DEVICE_COMPILER_NVCC |
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}; // end extern_shared_ptr |
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} // end detail |
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} // end cuda |
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} // end system |
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} // end thrust |
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