/usr/include/ITK-4.5/itkByteSwapper.h is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
/*=========================================================================
*
* Portions of this file are subject to the VTK Toolkit Version 3 copyright.
*
* Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
*
* For complete copyright, license and disclaimer of warranty information
* please refer to the NOTICE file at the top of the ITK source tree.
*
*=========================================================================*/
#ifndef __itkByteSwapper_h
#define __itkByteSwapper_h
#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkIntTypes.h"
namespace itk
{
/** \class ByteSwapper
* \brief Perform machine dependent byte swapping.
*
* ByteSwapper is used by I/O classes to perform machine dependent byte
* swapping. Byte swapping is often used when reading or writing binary
* files. Files can either be Big Endian (BE) or Little Endian (LE).
*
* \ingroup IOFilters
* \ingroup OSSystemObjects
* \ingroup ITKCommon
*/
template< typename T >
class ByteSwapper:public Object
{
public:
/** Standard class typedefs. */
typedef ByteSwapper Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Work around MSVC bug (including ByteSwapper.h in a templated class). */
typedef std::ostream OStreamType;
/** Run-time type information (and related methods). */
itkTypeMacro(ByteSwapper, Object);
/** Query the machine Endian-ness. */
static bool SystemIsBigEndian();
static bool SystemIsBE() { return SystemIsBigEndian(); }
static bool SystemIsLittleEndian();
static bool SystemIsLE() { return SystemIsLittleEndian(); }
/** Generic swap method handles type T. The swapping is
* done in-place. 2, 4 and 8 byte swapping
* can be handled. Single byte types are not swapped;
* others raise an exception. The method is used to
* swap to and from Big Endian. */
static void SwapFromSystemToBigEndian(T *p);
/** Type for representing large buffers, including those in 64bits
* architectures */
typedef SizeValueType BufferSizeType;
/** Generic swap method handles type T. The swapping is
* done in-place. 2, 4 and 8 byte swapping
* can be handled. Single byte types are not swapped;
* others raise an exception. The method is used to
* swap to and from Big Endian. */
static void SwapRangeFromSystemToBigEndian(T *p, BufferSizeType num);
/** Generic swap method handles type T. The data is
* swapped and written (in binary) to the ostream
* given. A total of num values of type T are written
* and swapped. 2, 4 and 8 byte swapping
* can be handled. Single byte types are not swapped;
* others raise an exception. The method is used to
* swap to and from Big Endian. */
static void SwapWriteRangeFromSystemToBigEndian(T *p, int num,
OStreamType *fp);
/** Generic swap method handles type T. The swapping is
* done in-place. 2, 4 and 8 byte swapping
* can be handled. Single byte types are not swapped;
* others raise an exception. The method is used to
* swap to and from Little Endian. */
static void SwapFromSystemToLittleEndian(T *p);
/** Generic swap method handles type T. The swapping is
* done in-place. 2, 4 and 8 byte swapping
* can be handled. Single byte types are not swapped;
* others raise an exception. The method is used to
* swap to and from Little Endian. */
static void SwapRangeFromSystemToLittleEndian(T *p, BufferSizeType num);
/** Generic swap method handles type T. The data is
* swapped and written (in binary) to the ostream
* given. A total of num values of type T are written
* and swapped. 2, 4 and 8 byte swapping
* can be handled. Single byte types are not swapped;
* others raise an exception. The method is used to
* swap to and from Little Endian. */
static void SwapWriteRangeFromSystemToLittleEndian(T *p, int num,
OStreamType *fp);
protected:
ByteSwapper() {}
~ByteSwapper() {}
/** Swap 2 bytes. */
static void Swap2(void *p);
/** Swap a range of two-byte words. Num is the number of two-byte
* words to swap. */
static void Swap2Range(void *p, BufferSizeType num);
/** Swap and write a range of two-byte words. Num is the number of two-byte
* words to swap and write. */
static void SwapWrite2Range(void *p, BufferSizeType num, OStreamType *fp);
/** Swap four bytes. */
static void Swap4(void *p);
/** Swap a range of four-byte words. Num is the number of four-byte words
* to swap. */
static void Swap4Range(void *p, BufferSizeType num);
/** Swap and write a range of four-byte words. Num is the number of four-byte
* words to swap and write. */
static void SwapWrite4Range(void *p, BufferSizeType num, OStreamType *fp);
/** Swap 8 bytes. */
static void Swap8(void *p);
/** Swap a range of 8-byte words. Num is the number of four-byte words
* to swap. */
static void Swap8Range(void *p, BufferSizeType num);
/** Swap and write a range of 8-byte words. Num is the number of four-byte
* words to swap and write. */
static void SwapWrite8Range(void *p, BufferSizeType num, OStreamType *fp);
private:
ByteSwapper(const ByteSwapper &); //purposely not implemented
void operator=(const ByteSwapper &); //purposely not implemented
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkByteSwapper.hxx"
#endif
#endif
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