Scalar.C

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License
    This file is part of OpenFOAM.
 
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
const char* const pTraits<Scalar>::typeName = "scalar";
const Scalar pTraits<Scalar>::zero = 0.0;
const Scalar pTraits<Scalar>::one = 1.0;
const Scalar pTraits<Scalar>::min = -ScalarVGreat;
const Scalar pTraits<Scalar>::max = ScalarVGreat;
const Scalar pTraits<Scalar>::rootMin = -ScalarRootVGreat;
const Scalar pTraits<Scalar>::rootMax = ScalarRootVGreat;
const Scalar pTraits<Scalar>::nan = ScalarNaN;
 
const char* const pTraits<Scalar>::componentNames[] = { "" };
 
pTraits<Scalar>::pTraits(const Scalar& p)
:
    p_(p)
{}
 
 
pTraits<Scalar>::pTraits(Istream& is)
{
    is >> p_;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
word name(const Scalar val)
{
    std::ostringstream buf;
    buf << val;
    return buf.str();
}
 
 
// * * * * * * * * * * * * * * * IOstream Functions  * * * * * * * * * * * * //
 
Scalar readScalar(Istream& is)
{
    Scalar rs;
    is  >> rs;
 
    return rs;
}
 
 
void writeEntry(Ostream& os, const Scalar value)
{
    os << value;
}
 
 
// * * * * * * * * * * * * * * * IOstream Operators  * * * * * * * * * * * * //
 
Istream& operator>>(Istream& is, Scalar& s)
{
    token t(is);
 
    if (!t.good())
    {
        is.setBad();
        return is;
    }
 
    if (t.isNumber())
    {
        s = t.number();
    }
    else
    {
        is.setBad();
        FatalIOErrorInFunction(is)
            << "wrong token type - expected Scalar, found " << t.info()
            << exit(FatalIOError);
 
        return is;
    }
 
    // Check state of Istream
    is.check("Istream& operator>>(Istream&, Scalar&)");
 
    return is;
}
 
 
Ostream& operator<<(Ostream& os, const Scalar s)
{
    os.write(s);
    os.check("Ostream& operator<<(Ostream&, const Scalar&)");
    return os;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //