ByteSwapping.h
#ifndef __BYTE_SWAPPING_H__
#define __BYTE_SWAPPING_H__
/*LICENSE_START*/
/*
* Copyright (c) 2014, Washington University School of Medicine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*/
#include <stdint.h>
namespace cifti {
class ByteSwapping {
public:
template<typename T>
static void swap(T& toSwap);
template<typename T>
static void swapArray(T* toSwap, const uint64_t& count);
inline static bool isBigEndian()
{
uint16_t test = 1;
return (((char*)&test)[0] == 0);
}
};
template<typename T>
void ByteSwapping::swap(T& toSwap)
{
if (sizeof(T) == 1) return;//we could specialize 1-byte types, but this should optimize out
T temp = toSwap;
char* from = (char*)&temp;
char* to = (char*)&toSwap;
for (int i = 0; i < (int)sizeof(T); ++i)
{
to[i] = from[sizeof(T) - i - 1];
}
}
template<typename T>
void ByteSwapping::swapArray(T* toSwap, const uint64_t& count)
{
if (sizeof(T) == 1) return;//ditto
for (uint64_t i = 0; i < count; ++i)
{
swap(toSwap[i]);
}
}
}
#endif // __BYTE_SWAPPING_H__
cifti::ByteSwapping
Definition ByteSwapping.h:40
cifti
namespace for all CiftiLib functionality
Definition CiftiBrainModelsMap.h:42