86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | www.openfoam.com
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
Copyright (C) 2018 Bernhard Gschaider
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of OpenFOAM.
|
|
|
|
OpenFOAM is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Application
|
|
Test-sigFpe
|
|
|
|
Description
|
|
Test handling of floating point exceptions by provoking them
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "OSspecific.H"
|
|
#include "IOstreams.H"
|
|
#include "scalar.H"
|
|
#include "sigFpe.H"
|
|
#include "argList.H"
|
|
|
|
#include <cmath>
|
|
|
|
using namespace Foam;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
// Main program:
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
argList::addBoolOption("fill-nan", "Test filling memory with NaN");
|
|
argList args(argc, argv);
|
|
|
|
// Force on
|
|
sigFpe::unset();
|
|
setEnv("FOAM_SIGFPE", "true", true);
|
|
// setEnv("FOAM_SETNAN", "true", true);
|
|
|
|
sigFpe::set(true);
|
|
|
|
if (args.found("fill-nan"))
|
|
{
|
|
Info<< nl << "Checking filling with NaN" << endl;
|
|
scalar* data = new scalar[10];
|
|
|
|
scalar first = data[0];
|
|
|
|
Info<< "First element " << first << endl;
|
|
Info<< "First element times two " << 2*first << endl;
|
|
|
|
delete[] data;
|
|
}
|
|
else
|
|
{
|
|
Info<< nl << "Provoking sigFpe (division by zero)" << nl << endl;
|
|
|
|
// Writing 1./0. might be optimized away by the compiler
|
|
|
|
const scalar zeroVal = ::sin(0.0);
|
|
Info << "Infinity " << 1./zeroVal << endl;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|