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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 "itkMath.h"
#include <iostream>
#define RoundTestHelperMacro( rndname, input, output ) \
if ( rndname( (input) ) != (output)) \
{ \
std::cout << "Failure! " << #rndname << "(" << (int)(input) << ") expected " \
<< (int)(output) << " but got " << (int)rndname( (input) ) \
<< std::endl; \
ok = false; \
}
namespace
{
template <typename T>
bool TemplatedRoundTest( void )
{
bool ok = true;
const unsigned int numberOfElements = 15;
// input data for rounding methods
float input[] = {-8.4999f, -8.50f, -8.5001f,
8.4999f, 8.50f, 8.5001f,
-9.4999f, -9.50f, -9.5001f,
9.4999f, 9.50f, 9.5001f,
-0.4999f, -.50f, -.5001f};
T roundOutput[] = { -8, -8, -9,
8, 9, 9,
-9, -9, -10,
9, 10, 10,
0, 0, -1};
T halftoevenOutput[] = { -8, -8, -9,
8, 8, 9,
-9, -10, -10,
9, 10, 10,
0, 0, -1};
T *halfupOutput = roundOutput;
////////
// input data for floor and ceil methods
float fcinput[] = { 8.0f, 8.9999f, 8.0001f,
-8.0f, -8.9999f, -8.0001f,
9.0f, 9.9999f, 9.0001f,
-9.0f, -9.9999f, -9.0001f,
-1.0f, -0.9999f, -1.0001f};
T floorOutput[] = { 8, 8, 8,
-8, -9, -9,
9, 9, 9,
-9,-10,-10,
-1,-1, -2};
T ceilOutput[] = { 8, 9, 9,
-8, -8, -8,
9, 10, 10,
-9, -9, -9,
-1, 0, -1};
// Round
for (unsigned int i = 0; i < numberOfElements; ++i)
{
RoundTestHelperMacro( itk::Math::Round<T>, (float)input[i], roundOutput[i] );
RoundTestHelperMacro( itk::Math::Round<T>, (double)input[i], roundOutput[i] );
}
// RoundHalfIntegerToEven
for (unsigned int i = 0; i < numberOfElements; ++i)
{
RoundTestHelperMacro( itk::Math::RoundHalfIntegerToEven<T>, (float)input[i], halftoevenOutput[i] );
RoundTestHelperMacro( itk::Math::RoundHalfIntegerToEven<T>, (double)input[i], halftoevenOutput[i] );
}
// RoundHalfIntegerUp
for (unsigned int i = 0; i < numberOfElements; ++i)
{
RoundTestHelperMacro( itk::Math::RoundHalfIntegerUp<T>, (float)input[i], halfupOutput[i] );
RoundTestHelperMacro( itk::Math::RoundHalfIntegerUp<T>, (double)input[i], halfupOutput[i] );
}
// Floor
for (unsigned int i = 0; i < numberOfElements; ++i)
{
RoundTestHelperMacro( itk::Math::Floor<T>, (float)fcinput[i], floorOutput[i] );
RoundTestHelperMacro( itk::Math::Floor<T>, (double)fcinput[i], floorOutput[i] );
}
// Ceil
for (unsigned int i = 0; i < numberOfElements; ++i)
{
RoundTestHelperMacro( itk::Math::Ceil<T>, (float)fcinput[i], ceilOutput[i] );
RoundTestHelperMacro( itk::Math::Ceil<T>, (double)fcinput[i], ceilOutput[i] );
}
return ok;
}
}
int itkMathRoundTest2( int, char *[] )
{
bool ok = true;
std::cout << "Testing char type" << std::endl;
ok &= TemplatedRoundTest<signed char>();
std::cout << "Testing short type" << std::endl;
ok &= TemplatedRoundTest<short>();
std::cout << "Testing int type" << std::endl;
ok &= TemplatedRoundTest<int>();
std::cout << "Testing long type" << std::endl;
ok &= TemplatedRoundTest<long>();
std::cout << "Testing vxl_int_64 type" << std::endl;
ok &= TemplatedRoundTest<vxl_int_64>();
if (!ok)
{
return EXIT_FAILURE;
}
else
{
std::cout<<"Test passed"<<std::endl;
return EXIT_SUCCESS;
}
}
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