TValBool Real::Less ( const Real & cv ) const
{
// if both are undefined:
if ( IsUndefined() && cv.IsUndefined() )
return TValBool::tfalse;
// if only one is undefined:
else if ( IsUndefined() || cv.IsUndefined() )
return TValBool::tundef;
// else they are real numbers.
return rvalue < cv.value();
}
TValBool Real::Equal ( const Real & cv ) const
{
// if both are undefined then are equals.
if ( IsUndefined() && cv.IsUndefined() )
return TValBool::ttrue;
// if only one is undefined:
else if ( IsUndefined() || cv.IsUndefined() )
return TValBool::tundef;
// else they are real numbers.
return (rvalue >= cv.value() - RealPrecision::Tol.precision() &&
rvalue <= cv.value() + RealPrecision::Tol.precision() ) ?
TValBool::ttrue : TValBool::tfalse;
}
const Real Real::operator - (const Real &c) const
{
if (IsUndefined() || c.IsUndefined())
return Real(); // Devuelve un indefinido
// else:
return Real( value() - c.value() );
}
const Real Real::operator / (const Real &c) const
{
if (IsUndefined() || c.IsUndefined())
return Real(); // Devuelve un indefinido
if (c == zero)
return Real();
// else:
return Real( value() / c.value() );
}