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// Thyra: Interfaces and Support for Abstract Numerical Algorithms
// Copyright (2004) Sandia Corporation
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// @HEADER
#ifndef THYRA_LINEAR_OP_DEFAULT_DECL_HPP
#define THYRA_LINEAR_OP_DEFAULT_DECL_HPP
#include "Thyra_LinearOpBase.hpp"
namespace Thyra {
/** \brief Node subclass that provides a good default implementation for
* the <tt>describe()</tt> function.
*
* \ingroup Thyra_Op_Vec_ANA_Development_grp
*/
template<class Scalar>
class LinearOpDefaultBase : virtual public LinearOpBase<Scalar> {
public:
#ifdef THYRA_INJECT_USING_DECLARATIONS
using LinearOpBase<Scalar>::apply;
using LinearOpBase<Scalar>::describe;
#endif
/** @name Public functions overridden from Teuchos::Describable */
//@{
/** \brief Default description that gives the label, type, and dimenstion . */
std::string description() const;
/** \brief Generates a default outputting for all linear operators.
*
* Calls on the <tt>this->description()</tt> function for the name of the
* class (and possibly its instance name) and then if <tt>verbLevel >=
* VERB_EXTREME</tt>, then the linear operators elements themselves are
* printed as well. The format of the output is as follows:
*
\verbatim
type = 'this->description()', rangeDim = m, domainDim = n
1:1:a11 1:2:a12 ... 1:n:a1n
2:1:a21 2:2:a22 ... 1:n:a2n
. . .
. . .
. . .
m:1:am1 m:2:am2 ... m:n:amn
\endverbatim
*
* The above matrix coefficients are with respect to the natural basis as
* defined by the scalar products.
*
* Before <tt>type = 'this->description()'</tt> is printed and after
* each newline, <tt>leadingIndent</tt> is output. The
* <tt>index:value</tt> lines are offset an additional
* <tt>indentSpacer</tt> amount. A newline is printed after the
* last <tt>m:n:amn</tt> entry.
*/
void describe(
Teuchos::FancyOStream &out
,const Teuchos::EVerbosityLevel verbLevel
) const;
//@}
}; // end class LinearOpDefaultBase
} // end namespace Thyra
#endif // THYRA_LINEAR_OP_DEFAULT_DECL_HPP
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