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/*
* JCuda - Java bindings for NVIDIA CUDA driver and runtime API
*
* Copyright (c) 2009-2015 Marco Hutter - http://www.jcuda.org
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package jcuda;
/**
* Constants for sizes of primitives
*/
public class Sizeof
{
/**
* Size of a byte, in bytes
*/
public static final int BYTE = Byte.SIZE / 8;
/**
* Size of a char, in bytes
*/
public static final int CHAR = Character.SIZE / 8;
/**
* Size of a short, in bytes
*/
public static final int SHORT = Short.SIZE / 8;
/**
* Size of an int, in bytes
*/
public static final int INT = Integer.SIZE / 8;
/**
* Size of a float, in bytes
*/
public static final int FLOAT = Float.SIZE / 8;
/**
* Size of a long, in bytes
*/
public static final int LONG = Long.SIZE / 8;
/**
* Size of a double, in bytes
*/
public static final int DOUBLE = Double.SIZE / 8;
/**
* Size of a (native) pointer, in bytes.
*/
public static final int POINTER = computePointerSize();
/**
* Computes the size of a pointer, in bytes
*
* @return The size of a pointer, in bytes
*/
private static int computePointerSize()
{
String bits = System.getProperty("sun.arch.data.model");
if (bits.equals("32"))
{
return 4;
}
else if (bits.equals("64"))
{
return 8;
}
else
{
System.err.println(
"Unknown value for sun.arch.data.model - assuming 32 bits");
return 4;
}
}
/**
* Private constructor to prevent instantiation.
*/
private Sizeof()
{
}
}
