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88 lines
2.6 KiB
88 lines
2.6 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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/*! \file device_new.h |
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* \brief Constructs new elements in device memory |
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*/ |
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#pragma once |
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#include <thrust/detail/config.h> |
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// #include this for size_t |
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#include <cstddef> |
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#include <thrust/device_ptr.h> |
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namespace thrust |
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{ |
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/*! |
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* \addtogroup allocation_functions Allocation Functions |
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* \{ |
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*/ |
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/*! \p device_new implements the placement \c new operator for types |
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* resident in device memory. \p device_new calls <tt>T</tt>'s null |
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* constructor on a array of objects in device memory. |
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* No memory is allocated by this function. |
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* |
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* \param p A \p device_ptr to a region of device memory into which |
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* to construct one or many <tt>T</tt>s. |
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* \param n The number of objects to construct at \p p. |
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* \return p, casted to <tt>T</tt>'s type. |
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* |
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* \see device_ptr |
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*/ |
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template <typename T> |
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device_ptr<T> device_new(device_ptr<void> p, |
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const size_t n = 1); |
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/*! \p device_new implements the placement new operator for types |
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* resident in device memory. \p device_new calls <tt>T</tt>'s copy |
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* constructor on a array of objects in device memory. No memory is |
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* allocated by this function. |
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* |
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* \param p A \p device_ptr to a region of device memory into which to |
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* construct one or many <tt>T</tt>s. |
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* \param exemplar The value from which to copy. |
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* \param n The number of objects to construct at \p p. |
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* \return p, casted to <tt>T</tt>'s type. |
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* |
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* \see device_ptr |
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* \see fill |
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*/ |
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template <typename T> |
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device_ptr<T> device_new(device_ptr<void> p, |
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const T &exemplar, |
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const size_t n = 1); |
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/*! \p device_new implements the new operator for types resident in device memory. |
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* It allocates device memory large enough to hold \p n new objects of type \c T. |
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* |
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* \param n The number of objects to allocate. Defaults to \c 1. |
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* \return A \p device_ptr to the newly allocated region of device memory. |
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*/ |
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template <typename T> |
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device_ptr<T> device_new(const size_t n = 1); |
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/*! \} |
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*/ |
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} // end thrust |
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#include <thrust/detail/device_new.inl> |
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