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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
#include <vtkArrayReader.h>
#include <vtkArrayWriter.h>
#include <vtkDenseArray.h>
#include <vtkSmartPointer.h>
#include <iostream>
#include <sstream>
#include <stdexcept>
#define test_expression(expression) \
do \
{ \
if (!(expression)) \
{ \
std::ostringstream buffer; \
buffer << "Expression failed at line " << __LINE__ << ": " << #expression; \
throw std::runtime_error(buffer.str()); \
} \
} while (false)
// This test ensures that we handle denormalized floating-point numbers gracefully,
// by truncating them to zero. Otherwise, iostreams will refuse to load denormalized
// values (considering them out-of-range).
int TestArrayDenormalized(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
{
try
{
vtkSmartPointer<vtkDenseArray<double>> a1 = vtkSmartPointer<vtkDenseArray<double>>::New();
a1->Resize(3);
a1->SetValue(0, 1.0);
a1->SetValue(1, 2.221997902944077e-314);
a1->SetValue(2, 3.0);
std::stringstream a_buffer;
vtkArrayWriter::Write(a1, a_buffer);
std::cerr << a_buffer.str() << std::endl;
vtkSmartPointer<vtkArray> a2;
a2.TakeReference(vtkArrayReader::Read(a_buffer));
test_expression(a2);
test_expression(vtkDenseArray<double>::SafeDownCast(a2));
test_expression(a2->GetVariantValue(0).ToDouble() == 1.0);
test_expression(a2->GetVariantValue(1).ToDouble() == 0.0);
test_expression(a2->GetVariantValue(2).ToDouble() == 3.0);
return 0;
}
catch (std::exception& e)
{
cerr << e.what() << endl;
return 1;
}
}
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