| # Gaudi Framework, version v22r2 |

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# Genfun::GaudiMathImplementation::AdapterIFunction Class Reference

constructor from the IFunction ( see AIDA/IFunction.h) More...

`#include <GaudiMath/Adapters.h>`

Collaboration diagram for Genfun::GaudiMathImplementation::AdapterIFunction:
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List of all members.

## Public Member Functions
| AdapterIFunction (const AIDA::IFunction &fun)
| mandatory macro from CLHEP/GenericFunctions
| AdapterIFunction (const AdapterIFunction &)
| copy constructor
virtual | ~AdapterIFunction ()
| desctructor
virtual double | operator() (double a) const
virtual double | operator() (const Argument &x) const
virtual unsigned int | dimensionality () const
virtual bool | hasAnalyticDerivative () const
| Does this function have an analytic derivative?
virtual Genfun::Derivative | partial (unsigned int i) const
| Derivatives.
## Private Member Functions
| AdapterIFunction ()
AdapterIFunction & | operator= (const AdapterIFunction &)
## Private Attributes
const AIDA::IFunction * | m_fun
size_t | m_dim
std::vector< double > | m_arg

## Detailed Description

constructor from the IFunction ( see AIDA/IFunction.h)

See also:
  AIDA::IFunction

Author:
  Kirill Miklyaev kirillm@iris1.itep.ru

Date:
  2003-08-03

Definition at line 31 of file FunAdapters.h.

## Constructor & Destructor Documentation

Genfun::GaudiMathImplementation::AdapterIFunction::AdapterIFunction | ( | const AIDA::IFunction & | fun ) |

mandatory macro from CLHEP/GenericFunctions

constructor from AIDA::Function

Parameters:

  fun | AIDA function

Definition at line 21 of file Adapter.cpp.

          : AbsFunction ( )
          , m_fun ( &fun  )
          , m_dim ( fun.dimension() )
          , m_arg ( fun.dimension() , 0 )
        {}

Genfun::GaudiMathImplementation::AdapterIFunction::AdapterIFunction | ( | const AdapterIFunction & | right ) |

copy constructor

Definition at line 28 of file Adapter.cpp.

          : AbsFunction (  )
          , m_fun ( right.m_fun )
          , m_dim ( right.m_dim )
          , m_arg ( right.m_arg )
        {}

Genfun::GaudiMathImplementation::AdapterIFunction::~AdapterIFunction | ( | ) | `[virtual]`

desctructor

Definition at line 35 of file Adapter.cpp.

    {}

Genfun::GaudiMathImplementation::AdapterIFunction::AdapterIFunction | ( | ) | `[private]`

## Member Function Documentation

virtual unsigned int Genfun::GaudiMathImplementation::AdapterIFunction::dimensionality | ( | ) | const`[inline, virtual]`

Definition at line 50 of file FunAdapters.h.

    { return m_dim ; }

virtual bool Genfun::GaudiMathImplementation::AdapterIFunction::hasAnalyticDerivative | ( | ) | const`[inline, virtual]`

Does this function have an analytic derivative?

Definition at line 53 of file FunAdapters.h.

    { return true ; }

virtual double Genfun::GaudiMathImplementation::AdapterIFunction::operator() | ( | const Argument & | x ) | const`[virtual]`

double Genfun::GaudiMathImplementation::AdapterIFunction::operator() | ( | double | a ) | const`[virtual]`

Definition at line 37 of file Adapter.cpp.

        {
          for ( size_t i = 0; i < m_dim; ++i ) { m_arg[i] = 0.0 ; }
          m_arg[0] = x ;
          return m_fun -> value ( m_arg ) ;
        }

AdapterIFunction& Genfun::GaudiMathImplementation::AdapterIFunction::operator= | ( | const AdapterIFunction & | ) | `[private]`

Genfun::Derivative Genfun::GaudiMathImplementation::AdapterIFunction::partial | ( | unsigned int | i ) | const`[virtual]`

Derivatives.

Definition at line 50 of file Adapter.cpp.

        {
          if ( i >= m_dim )
          {
            const AbsFunction& aux = GaudiMath::Constant( 0 , m_dim  ) ;
            return Genfun::FunctionNoop( &aux ) ;
          };
          const AbsFunction& aux = GaudiMath::Derivative( *this , i ) ;
          return Genfun::FunctionNoop ( &aux ) ;
        }

## Member Data Documentation

std::vector<double> Genfun::GaudiMathImplementation::AdapterIFunction::m_arg`[mutable, private]`

Definition at line 63 of file FunAdapters.h.

size_t Genfun::GaudiMathImplementation::AdapterIFunction::m_dim`[private]`

Definition at line 62 of file FunAdapters.h.

const AIDA::IFunction* Genfun::GaudiMathImplementation::AdapterIFunction::m_fun`[private]`

Definition at line 61 of file FunAdapters.h.

The documentation for this class was generated from the following files:

- /afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/GaudiGSL/GaudiMath/FunAdapters.h
- /afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/GaudiGSL/src/Lib/Adapter.cpp

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