SundanceConstantExpr.cpp

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/* @HEADER@ */

#include "SundanceConstantExpr.hpp"

using namespace Sundance;
using namespace Sundance;

using namespace Sundance;
using namespace Teuchos;

ConstantExpr::ConstantExpr(const double& value)
  : SpatiallyConstantExpr(), value_(value)
{}



Set<MultipleDeriv> 
ConstantExpr::internalFindW(int order, const EvalContext& context) const
{
  Set<MultipleDeriv> rtn;

  if (order==0) rtn.put(MultipleDeriv());
  Tabs tab;
  SUNDANCE_MSG2(context.setupVerbosity(), 
    tab << "ConstantExpr::internalFindW found" << rtn << " for order="
    << order);

  return rtn;
}

Set<MultipleDeriv> 
ConstantExpr::internalFindV(int order, const EvalContext& context) const
{
  Set<MultipleDeriv> rtn;
  Tabs tab;
  SUNDANCE_MSG2(context.setupVerbosity(), 
    tab << "ConstantExpr::internalFindV is a no-op");
  return rtn;
}


Set<MultipleDeriv> 
ConstantExpr::internalFindC(int order, const EvalContext& context) const
{
  Tabs tab;
  SUNDANCE_MSG2(context.setupVerbosity(), 
    tab << "ConstantExpr::internalFindC is forwarding to findR()");
  return findR(order, context);
}


bool ConstantExpr::lessThan(const ScalarExpr* other) const
{
  const ConstantExpr* c = dynamic_cast<const ConstantExpr*>(other);
  TEUCHOS_TEST_FOR_EXCEPTION(c==0, std::logic_error, "cast should never fail at this point");
  return value() < c->value();
}


std::ostream& ConstantExpr::toText(std::ostream& os, bool /* paren */) const 
{
  os << value();
  return os;
}


XMLObject ConstantExpr::toXML() const 
{
  XMLObject rtn("Constant");
  rtn.addAttribute("value", Teuchos::toString(value()));
  return rtn;
}