Teuchos_ArrayConversions.hpp

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//                    Teuchos: Common Tools Package
//                 Copyright (2004) Sandia Corporation
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
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// Lesser General Public License for more details.
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#ifndef TEUCHOS_ARRAY_CONVERSIONS_H
#define TEUCHOS_ARRAY_CONVERSIONS_H

#include "Teuchos_Ptr.hpp"
#include "Teuchos_RCP.hpp"
#include "Teuchos_Array.hpp"
#include "Teuchos_Assert.hpp"


namespace Teuchos {


template<class ArrayPtrT_in, class T_out>
void arrayViewPtrConv( const ArrayPtrT_in &a_in,
  const ArrayView<Ptr<T_out> > &a_out )
{
  using Teuchos::as;
#ifdef TEUCHOS_DEBUG
  TEUCHOS_ASSERT_EQUALITY(as<Teuchos_Ordinal>(a_in.size()),
    as<Teuchos_Ordinal>(a_out.size()));
#endif
  for (Teuchos_Ordinal i = 0; i < as<Teuchos_Ordinal>(a_in.size()); ++i) {
    a_out[i] = a_in[i].ptr();
  }
}


template<class ArrayPtrT_in, class T_out>
void arrayViewRcpConv( const ArrayPtrT_in &a_in,
  const ArrayView<RCP<T_out> > &a_out )
{
  using Teuchos::as;
#ifdef TEUCHOS_DEBUG
  TEUCHOS_ASSERT_EQUALITY(as<Teuchos_Ordinal>(a_in.size()),
    as<Teuchos_Ordinal>(a_out.size()));
#endif
  for (Teuchos_Ordinal i = 0; i < as<Teuchos_Ordinal>(a_in.size()); ++i) {
    a_out[i] = a_in[i];
  }
}


template<class T_out, class ArrayPtrT_in>
Array<Ptr<T_out> > arrayPtrConv(const ArrayPtrT_in &a_in)
{
  using Teuchos::as;
  Array<Ptr<T_out> > a_out(a_in.size());
  arrayViewPtrConv(a_in, a_out());
  return a_out;
}


template<class T_out, class ArrayPtrT_in>
Array<RCP<T_out> > arrayRcpConv(const ArrayPtrT_in &a_in)
{
  using Teuchos::as;
  Array<RCP<T_out> > a_out(a_in.size());
  arrayViewRcpConv(a_in, a_out());
  return a_out;
}


template<class T>
ArrayView<const Ptr<const T> >
arrayConstPtrConstCast(const ArrayView<const Ptr<T> > &a_in)
{
  return av_reinterpret_cast<const Ptr<const T> >(a_in);
}


template<class T>
ArrayView<const RCP<const T> >
arrayConstRcpConstCast(const ArrayView<const RCP<T> > &a_in)
{
  return av_reinterpret_cast<const RCP<const T> >(a_in);
}


} // namespace Teuchos


#endif // TEUCHOS_ARRAY_CONVERSIONS_H