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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.
*
*=========================================================================*/
#include <iostream>
#include "itkByteSwapper.h"
#include "itkMath.h"
int itkByteSwapTest ( int, char*[] )
{
// Test out the Byte Swap code
std::cout << "Starting test" << std::endl;
unsigned char uc = 'a', uc1 = 'a';
unsigned short us = 1, us1 = 1;
unsigned int ui = 1, ui1 = 1;
unsigned long ul = 1, ul1 = 1;
unsigned long long ull = 1, ull1 = 1;
float f = 1.0, f1 = 1.0;
double d = 1.0, d1 = 1.0;
// Try to swap a char
if ( itk::ByteSwapper<int>::SystemIsBigEndian() == itk::ByteSwapper<int>::SystemIsLE() )
{
return EXIT_FAILURE;
}
if ( itk::ByteSwapper<int>::SystemIsBE() == itk::ByteSwapper<int>::SystemIsLittleEndian() )
{
return EXIT_FAILURE;
}
if ( itk::ByteSwapper<int>::SystemIsBigEndian() )
{
itk::ByteSwapper<unsigned char>::SwapFromSystemToLittleEndian ( &uc );
itk::ByteSwapper<unsigned char>::SwapFromSystemToLittleEndian ( &uc );
}
else
{
itk::ByteSwapper<unsigned char>::SwapFromSystemToBigEndian ( &uc );
itk::ByteSwapper<unsigned char>::SwapFromSystemToBigEndian ( &uc );
}
if ( uc != uc1 )
{
return EXIT_FAILURE;
}
std::cout << "Passed unsigned char: " << uc << std::endl;
if ( itk::ByteSwapper<int>::SystemIsBE() )
{
itk::ByteSwapper<unsigned short>::SwapFromSystemToLittleEndian ( &us );
itk::ByteSwapper<unsigned short>::SwapFromSystemToLittleEndian ( &us );
}
else
{
itk::ByteSwapper<unsigned short>::SwapFromSystemToBigEndian ( &us );
itk::ByteSwapper<unsigned short>::SwapFromSystemToBigEndian ( &us );
}
if ( us != us1 )
{
return EXIT_FAILURE;
}
std::cout << "Passed unsigned short: " << us << std::endl;
if ( itk::ByteSwapper<int>::SystemIsBigEndian() )
{
itk::ByteSwapper<unsigned int>::SwapFromSystemToLittleEndian ( &ui );
itk::ByteSwapper<unsigned int>::SwapFromSystemToLittleEndian ( &ui );
}
else
{
itk::ByteSwapper<unsigned int>::SwapFromSystemToBigEndian ( &ui );
itk::ByteSwapper<unsigned int>::SwapFromSystemToBigEndian ( &ui );
}
if ( ui != ui1 )
{
return EXIT_FAILURE;
}
std::cout << "Passed unsigned int: " << ui << std::endl;
try
{
if ( itk::ByteSwapper<long>::SystemIsBigEndian() )
{
itk::ByteSwapper<unsigned long>::SwapFromSystemToLittleEndian ( &ul );
itk::ByteSwapper<unsigned long>::SwapFromSystemToLittleEndian ( &ul );
}
else
{
itk::ByteSwapper<unsigned long>::SwapFromSystemToBigEndian ( &ul );
itk::ByteSwapper<unsigned long>::SwapFromSystemToBigEndian ( &ul );
}
if ( ul != ul1 )
{
return EXIT_FAILURE;
}
std::cout << "Passed unsigned long: " << ul << std::endl;
}
catch ( itk::ExceptionObject &err )
{
std::cout << "Caught unsigned long exception size is: " << sizeof ( unsigned long ) << std::endl;
(&err)->Print(std::cerr);
}
try
{
if ( itk::ByteSwapper<long>::SystemIsBigEndian() )
{
itk::ByteSwapper<unsigned long long>::SwapFromSystemToLittleEndian ( &ull );
itk::ByteSwapper<unsigned long long>::SwapFromSystemToLittleEndian ( &ull );
}
else
{
itk::ByteSwapper<unsigned long long>::SwapFromSystemToBigEndian ( &ull );
itk::ByteSwapper<unsigned long long>::SwapFromSystemToBigEndian ( &ull );
}
if ( ull != ull1 )
{
return EXIT_FAILURE;
}
std::cout << "Passed unsigned long long: " << ull << std::endl;
}
catch ( itk::ExceptionObject &err )
{
std::cout << "Caught unsigned long long exception size is: " << sizeof ( unsigned long long ) << std::endl;
(&err)->Print(std::cerr);
}
try
{
if ( itk::ByteSwapper<int>::SystemIsBigEndian() )
{
itk::ByteSwapper<float>::SwapFromSystemToLittleEndian ( &f );
itk::ByteSwapper<float>::SwapFromSystemToLittleEndian ( &f );
}
else
{
itk::ByteSwapper<float>::SwapFromSystemToBigEndian ( &f );
itk::ByteSwapper<float>::SwapFromSystemToBigEndian ( &f );
}
if ( itk::Math::NotExactlyEquals(f, f1) )
{
return EXIT_FAILURE;
}
std::cout << "Passed float: " << f << std::endl;
}
catch ( itk::ExceptionObject &err )
{
std::cout << "Caught float exception size is: " << sizeof ( float ) << std::endl;
(&err)->Print(std::cerr);
return EXIT_FAILURE;
}
try
{
if ( itk::ByteSwapper<int>::SystemIsBigEndian() )
{
itk::ByteSwapper<double>::SwapFromSystemToLittleEndian ( &d );
itk::ByteSwapper<double>::SwapFromSystemToLittleEndian ( &d );
}
else
{
itk::ByteSwapper<double>::SwapFromSystemToBigEndian ( &d );
itk::ByteSwapper<double>::SwapFromSystemToBigEndian ( &d );
}
if ( itk::Math::NotExactlyEquals(d, d1) )
{
return EXIT_FAILURE;
}
std::cout << "Passed unsigned d: " << d << std::endl;
}
catch ( itk::ExceptionObject &err )
{
std::cout << "Good catch! Caught double exception size is: " << sizeof ( double ) << std::endl;
(&err)->Print(std::cerr);
return EXIT_FAILURE;
}
// we failed to throw an exception for the double swap (once it's implemented, this should return 0
return EXIT_SUCCESS;
}
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