146 lines
3.9 KiB
Plaintext
146 lines
3.9 KiB
Plaintext
/******************************************************************************
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* Copyright (c) 2011, Duane Merrill. All rights reserved.
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* Copyright (c) 2011-2013, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the NVIDIA CORPORATION nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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/**
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* \file
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* Simple binary operator functor types
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*/
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/******************************************************************************
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* Simple functor operators
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******************************************************************************/
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#pragma once
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#include "../util_macro.cuh"
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#include "../util_namespace.cuh"
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/// Optional outer namespace(s)
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CUB_NS_PREFIX
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/// CUB namespace
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namespace cub {
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/**
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* \addtogroup ThreadModule
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* @{
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*/
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/**
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* \brief Default equality functor
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*/
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struct Equality
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{
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/// Boolean equality operator, returns <tt>(a == b)</tt>
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template <typename T>
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__host__ __device__ __forceinline__ bool operator()(const T &a, const T &b)
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{
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return a == b;
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}
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};
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/**
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* \brief Default inequality functor
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*/
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struct Inequality
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{
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/// Boolean inequality operator, returns <tt>(a != b)</tt>
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template <typename T>
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__host__ __device__ __forceinline__ bool operator()(const T &a, const T &b)
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{
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return a != b;
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}
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};
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/**
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* \brief Default sum functor
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*/
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struct Sum
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{
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/// Boolean sum operator, returns <tt>a + b</tt>
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template <typename T>
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__host__ __device__ __forceinline__ T operator()(const T &a, const T &b)
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{
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return a + b;
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}
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};
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/**
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* \brief Default max functor
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*/
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struct Max
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{
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/// Boolean max operator, returns <tt>(a > b) ? a : b</tt>
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template <typename T>
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__host__ __device__ __forceinline__ T operator()(const T &a, const T &b)
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{
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return CUB_MAX(a, b);
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}
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};
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/**
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* \brief Default min functor
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*/
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struct Min
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{
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/// Boolean min operator, returns <tt>(a < b) ? a : b</tt>
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template <typename T>
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__host__ __device__ __forceinline__ T operator()(const T &a, const T &b)
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{
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return CUB_MIN(a, b);
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}
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};
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/**
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* \brief Default cast functor
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*/
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template <typename B>
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struct Cast
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{
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/// Boolean max operator, returns <tt>(a > b) ? a : b</tt>
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template <typename A>
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__host__ __device__ __forceinline__ B operator()(const A &a)
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{
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return (B) a;
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}
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};
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/** @} */ // end group ThreadModule
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} // CUB namespace
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CUB_NS_POSTFIX // Optional outer namespace(s)
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