/usr/include/trilinos/EpetraExt_Transform_Composite.h is in libtrilinos-epetraext-dev 12.12.1-5.
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// ***********************************************************************
//
// EpetraExt: Epetra Extended - Linear Algebra Services Package
// Copyright (2011) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
//@HEADER
//-----------------------------------------------------------------------
// EpetraExt_Transform_Composite.h
//-----------------------------------------------------------------------
#ifndef EPETRAEXT_TRANSFORM_COMPOSITE_H
#define EPETRAEXT_TRANSFORM_COMPOSITE_H
#include <EpetraExt_Transform.h>
#include <list>
namespace EpetraExt {
//! Composition Class for Epetra Transform SameType Operators.
/*! This class allows <tt>SameType</tt> Transforms to be composed as
a single Transform.
*/
template<typename T>
class Transform_Composite : public SameTypeTransform<T>
{
public:
typedef SameTypeTransform<T> * TransformTypePtr;
//! EpetraExt::Transform_Composite Constructor
Transform_Composite() {}
//! EpetraExt::Transform_Composite Destructor
virtual ~Transform_Composite();
//! Transform Addition
/*! Add <tt>SameType</tt> Transform to composition.
Order of Addition == Order of Application
*/
void addTransform( TransformTypePtr new_trans );
//! Analysis phase generates plan and check feasibility
/*! Analysis of transform operation on original object and construction
of new object.
\return Returns a pointer to the newly created object of type
NewTypePtr. The Transform object maintains ownership of this
new object and deletes as a part of it's destruction.
*/
virtual
typename Transform<T,T>::NewTypeRef
operator()
( typename Transform<T,T>::OriginalTypeRef orig );
//! Forward Data Transfer
/*! Forward transfer of data from <tt>orig</tt> object input in the
<tt>operator()</tt> method call to the new object created in this
same call. Returns <tt>true</tt> is
operation is successful.
*/
virtual bool fwd();
//!
/*! Reverse transfer of data from new object created in the
<tt>operator()</tt> method call to the <tt>orig</tt> object input
to this same method. Returns <tt>true</tt> if operation is successful.
*/
virtual bool rvs();
protected:
typedef typename std::list<TransformTypePtr>::iterator TransListIter;
typedef typename std::list<TransformTypePtr>::reverse_iterator TransListRvsIter;
std::list<TransformTypePtr> transList_;
}; // end class Tranform_Composite
template<typename T>
Transform_Composite<T>::
~Transform_Composite()
{
TransListIter iter = transList_.begin();
TransListIter end = transList_.end();
for( ; iter != end; ++iter ) delete *iter;
}
template<typename T>
void
Transform_Composite<T>::
addTransform( TransformTypePtr new_trans )
{
transList_.push_back( new_trans );
}
template<typename T>
typename Transform<T,T>::NewTypeRef
Transform_Composite<T>::
operator()
( typename Transform<T,T>::OriginalTypeRef orig )
{
this->origObj_ = &orig;
this->newObj_ = &orig;
TransListIter iter = transList_.begin();
TransListIter end = transList_.end();
for( ; iter != end; ++iter )
this->newObj_ = &((**iter)( *(this->newObj_) ));
return *(this->newObj_);
}
template<typename T>
bool
Transform_Composite<T>::
fwd()
{
bool success = true;
TransListIter iter = transList_.begin();
TransListIter end = transList_.end();
for( ; iter != end; ++iter )
if( !(**iter).fwd() ) return false;
return success;
}
template<typename T>
bool
Transform_Composite<T>::
rvs()
{
bool success = true;
TransListRvsIter iter = transList_.rbegin();
TransListRvsIter end = transList_.rend();
for( ; iter != end; ++iter )
if( !(**iter).rvs() ) return false;
return success;
}
} //namespace EpetraExt
#endif //EPETRAEXT_TRANSFORM_COMPOSITE_H
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