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util_macro.cuh
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util_macro.cuh
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/******************************************************************************
* Copyright (c) 2011, Duane Merrill. All rights reserved.
* Copyright (c) 2011-2013, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the NVIDIA CORPORATION nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/
/******************************************************************************
* Common C/C++ macro utilities
******************************************************************************/
#pragma once
#include "util_namespace.cuh"
/// Optional outer namespace(s)
CUB_NS_PREFIX
/// CUB namespace
namespace cub {
/**
* \addtogroup UtilModule
* @{
*/
/**
* Align struct
*/
#if defined(_WIN32) || defined(_WIN64)
#define CUB_ALIGN(bytes) __declspec(align(32))
#else
#define CUB_ALIGN(bytes) __attribute__((aligned(bytes)))
#endif
/**
* Select maximum(a, b)
*/
#define CUB_MAX(a, b) (((a) > (b)) ? (a) : (b))
/**
* Select minimum(a, b)
*/
#define CUB_MIN(a, b) (((a) < (b)) ? (a) : (b))
/**
* Quotient of x/y rounded down to nearest integer
*/
#define CUB_QUOTIENT_FLOOR(x, y) ((x) / (y))
/**
* Quotient of x/y rounded up to nearest integer
*/
#define CUB_QUOTIENT_CEILING(x, y) (((x) + (y) - 1) / (y))
/**
* x rounded up to the nearest multiple of y
*/
#define CUB_ROUND_UP_NEAREST(x, y) ((((x) + (y) - 1) / (y)) * y)
/**
* x rounded down to the nearest multiple of y
*/
#define CUB_ROUND_DOWN_NEAREST(x, y) (((x) / (y)) * y)
/**
* Return character string for given type
*/
#define CUB_TYPE_STRING(type) ""#type
#ifndef DOXYGEN_SHOULD_SKIP_THIS // Do not document
#define CUB_CAT_(a, b) a ## b
#define CUB_CAT(a, b) CUB_CAT_(a, b)
#endif // DOXYGEN_SHOULD_SKIP_THIS
/**
* Static assert
*/
#define CUB_STATIC_ASSERT(cond, msg) typedef int CUB_CAT(cub_static_assert, __LINE__)[(cond) ? 1 : -1]
/** @} */ // end group UtilModule
} // CUB namespace
CUB_NS_POSTFIX // Optional outer namespace(s)

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