56fd68e7dd
CCCL (CUDA C++ Core Libraries) provides: - CUB: device/block/warp-level GPU primitives (reduce, scan, sort, topk) - Thrust: high-level parallel algorithms (transform_reduce, sort, scan) - libcudacxx: CUDA C++ standard library (atomics, barriers, memory) - cudax: experimental features (memory resources, allocators) - Tuning policies: per-SM hardware-specific algorithm parameters Competition optimization vectors mapped to CCCL: - Output TPS (83% weight): warp_reduce, block_reduce, device_topk - Input TPS (14% weight): device_scan, block_load, prefetch - Cache TPS (3% weight): prefix caching strategy patterns - Memory (0.9 util): pooled/cached/buddy allocators Source: https://github.com/NVIDIA/cccl (shallow clone, HEAD only) License: Apache-2.0
145 lines
3.9 KiB
C++
145 lines
3.9 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2008-2018, NVIDIA Corporation. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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/*! \file tuple.h
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* \brief A type encapsulating a heterogeneous collection of elements.
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*/
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/*
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* Copyright (C) 1999, 2000 Jaakko Järvi (jaakko.jarvi@cs.utu.fi)
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying NOTICE file for the complete license)
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*
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* For more information, see http://www.boost.org
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*/
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#pragma once
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#include <thrust/detail/config.h>
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#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
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# pragma GCC system_header
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#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
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# pragma clang system_header
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#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
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# pragma system_header
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#endif // no system header
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#include <cuda/std/tuple>
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THRUST_NAMESPACE_BEGIN
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/*! \addtogroup utility
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* \{
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*/
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/*! \addtogroup tuple
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* \{
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*/
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/*! This metafunction returns the type of a
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* \p tuple's <tt>N</tt>th element.
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*
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* \tparam N This parameter selects the element of interest.
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* \tparam T A \c tuple type of interest.
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*
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* \see pair
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* \see tuple
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*
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* \deprecated Use cuda::std::tuple_element instead
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*
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* \verbatim embed:rst:leading-asterisk
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* .. versionadded:: 2.2.0
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* \endverbatim
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*/
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#ifdef _CCCL_DOXYGEN_INVOKED // Provide a fake alias for doxygen
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template <size_t N, class T>
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using tuple_element = ::cuda::std::tuple_element<N, T>;
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#else // ^^^ _CCCL_DOXYGEN_INVOKED ^^^ / vvv !_CCCL_DOXYGEN_INVOKED vvv
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using ::cuda::std::tuple_element;
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#endif // _CCCL_DOXYGEN_INVOKED
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/*! This metafunction returns the number of elements
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* of a \p tuple type of interest.
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*
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* \tparam T A \c tuple type of interest.
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*
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* \see pair
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* \see tuple
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*
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* \deprecated Use cuda::std::tuple_size instead
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*
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* \verbatim embed:rst:leading-asterisk
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* .. versionadded:: 2.2.0
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* \endverbatim
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*/
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#ifdef _CCCL_DOXYGEN_INVOKED // Provide a fake alias for doxygen
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template <class T>
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using tuple_size = ::cuda::std::tuple_size<T>;
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#else // ^^^ _CCCL_DOXYGEN_INVOKED ^^^ / vvv !_CCCL_DOXYGEN_INVOKED vvv
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using ::cuda::std::tuple_size;
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#endif // _CCCL_DOXYGEN_INVOKED
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/*! \brief \p tuple is a heterogeneous, fixed-size collection of values.
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* An instantiation of \p tuple with two arguments is similar to an
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* instantiation of \p pair with the same two arguments. Individual elements
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* of a \p tuple may be accessed with the \p get function.
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*
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* \tparam Ts The type of the <tt>N</tt> \c tuple element. Thrust's \p tuple
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* type currently supports up to ten elements.
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*
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* The following code snippet demonstrates how to create a new \p tuple object
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* and inspect and modify the value of its elements.
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*
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* \code
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* #include <thrust/tuple.h>
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* #include <iostream>
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*
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* int main() {
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* // Create a tuple containing an `int`, a `float`, and a string.
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* thrust::tuple<int, float, const char*> t(13, 0.1f, "thrust");
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*
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* // Individual members are accessed with the free function `get`.
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* std::cout << "The first element's value is " << thrust::get<0>(t) << '\n';
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*
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* // ... or the member function `get`.
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* std::cout << "The second element's value is " << t.get<1>() << '\n';
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*
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* // We can also modify elements with the same function.
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* thrust::get<0>(t) += 10;
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* }
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* \endcode
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*
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* \see pair
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* \see get
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* \see make_tuple
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* \see tuple_element
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* \see tuple_size
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* \see tie
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*
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* \deprecated Use cuda::std::tuple instead
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*
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* \verbatim embed:rst:leading-asterisk
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* .. versionadded:: 2.2.0
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* \endverbatim
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*/
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#ifdef _CCCL_DOXYGEN_INVOKED // Provide a fake alias for doxygen
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template <class... Ts>
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using tuple = ::cuda::std::tuple<T...>;
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#else // ^^^ _CCCL_DOXYGEN_INVOKED ^^^ / vvv !_CCCL_DOXYGEN_INVOKED vvv
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using ::cuda::std::tuple;
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#endif // _CCCL_DOXYGEN_INVOKED
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using ::cuda::std::get;
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using ::cuda::std::make_tuple;
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using ::cuda::std::tie;
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/*! \} // tuple
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*/
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/*! \} // utility
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*/
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THRUST_NAMESPACE_END
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