NTFloatFunT< Ntuple, T > Class Template Reference

#include <NTFloatFun.h>

Inheritance diagram for NTFloatFunT< Ntuple, T >:

[legend]Collaboration diagram for NTFloatFunT< Ntuple, T >:

[legend]List of all members.

---

Detailed Description

template<class Ntuple, class T = Float_t>
class NTFloatFunT< Ntuple, T >

Returns a Float_FF value from an Ntuple.

An NTFloatFunT collaborates with a class Ntuple, which automatically generated by TTree::MakeClass, and returns a Float_t value from a given branch.

The first template argument is the class name of the ntuple class that was automatically generated by TTree::MakeClass. The second (optional) template argument is the type of the branch variable; this is useful if the branch contains not Float_t objects, but double or even int values.

Author: Benno List, Jenny Böhme

Date

2006/10/25 15:06:59

Author

msteder

Changelog:

• 15.7.04 BL: Added method getIterator()
• 20.7.04 BL: Use IntFun instead of FillIterator
• 8.4.05 BL: Add optional offset, and operator[]
• 6.5.04 BL: Adapted to name in base class, added new constructors needed for operator[]

Definition at line 101 of file NTFloatFun.h.

Public Member Functions
	NTFloatFunT (const Ntuple &nt, const char *branchname, const IntFunPoR &iter_=0)
	Constructor from a branch name given as string.
	NTFloatFunT (const Ntuple &nt, T Ntuple::*p_mem, const char *name_="?", const IntFunPoR &iter_=0)
	Constructor from a member pointer.
	NTFloatFunT (const Ntuple &nt, const char *branchname, int offset_)
	Constructor from a branch name given as string, with offset.
	NTFloatFunT (const Ntuple &nt, T Ntuple::*p_mem, const char *name_, int offset_)
	Constructor from a member pointer, with offset.
	NTFloatFunT (const NTFloatFunT< Ntuple, T > &source, const IntFunPoR &iter_)
	Constructor from an existing NTFloatFunT object, plus a new iterator.
	NTFloatFunT (const NTFloatFunT< Ntuple, T > &source, const int offset_)
	Constructor from an existing NTFloatFunT object, plus a new offset.
virtual Float_FF	operator() () const
	Returns a Float_FF value from an ntuple row.
NTFloatFunT< Ntuple, T > &	operator[] (const IntFunPoR &iter_) const
	Returns a new object with a different iterator.
NTFloatFunT< Ntuple, T > &	operator[] (int offset_) const
	Returns a new object with a different offset.
Protected Member Functions
virtual	~NTFloatFunT ()
	Protected destructor ensures creation on the heap.
Protected Attributes
const T *	branchAddress
	The branch adress.

---

Constructor & Destructor Documentation

template<class Ntuple, class T = Float_t> NTFloatFunT< Ntuple, T >::NTFloatFunT (  const Ntuple &  nt, const char *  branchname, const IntFunPoR &  iter_ = 0 )  [inline]

Constructor from a branch name given as string. Parameters: nt  The ntuple branchname  The branch name iter_  An optional iterator Definition at line 104 of file NTFloatFun.h. References NTFloatFunT< Ntuple, T >::branchAddress.

template<class Ntuple, class T = Float_t> NTFloatFunT< Ntuple, T >::NTFloatFunT (  const Ntuple &  nt, T Ntuple::*  p_mem, const char *  name_ = "?", const IntFunPoR &  iter_ = 0 )  [inline]

Constructor from a member pointer. Parameters: nt  The ntuple p_mem  Member pointer name_  The object's name iter_  An optional iterator Definition at line 119 of file NTFloatFun.h. References NTFloatFunT< Ntuple, T >::branchAddress.

template<class Ntuple, class T = Float_t> NTFloatFunT< Ntuple, T >::NTFloatFunT (  const Ntuple &  nt, const char *  branchname, int  offset_ )  [inline]

Constructor from a branch name given as string, with offset. Parameters: nt  The ntuple branchname  The branch name offset_  The offset Definition at line 131 of file NTFloatFun.h. References NTFloatFunT< Ntuple, T >::branchAddress.

template<class Ntuple, class T = Float_t> NTFloatFunT< Ntuple, T >::NTFloatFunT (  const Ntuple &  nt, T Ntuple::*  p_mem, const char *  name_, int  offset_ )  [inline]

Constructor from a member pointer, with offset. Parameters: nt  The ntuple p_mem  Member pointer name_  The object's name offset_  The offset Definition at line 146 of file NTFloatFun.h. References NTFloatFunT< Ntuple, T >::branchAddress.

template<class Ntuple, class T = Float_t> NTFloatFunT< Ntuple, T >::NTFloatFunT (  const NTFloatFunT< Ntuple, T > &  source, const IntFunPoR &  iter_ )  [inline]

Constructor from an existing NTFloatFunT object, plus a new iterator. Parameters: iter_  The new iterator Definition at line 158 of file NTFloatFun.h. References NTFloatFunT< Ntuple, T >::branchAddress, and NTFloatFun::getBaseName().

template<class Ntuple, class T = Float_t> NTFloatFunT< Ntuple, T >::NTFloatFunT (  const NTFloatFunT< Ntuple, T > &  source, const int  offset_ )  [inline]

Constructor from an existing NTFloatFunT object, plus a new offset. Parameters: offset_  The new offset Definition at line 165 of file NTFloatFun.h. References NTFloatFunT< Ntuple, T >::branchAddress, and NTFloatFun::getBaseName().

---

Member Function Documentation

template<class Ntuple, class T = Float_t> NTFloatFunT<Ntuple, T>& NTFloatFunT< Ntuple, T >::operator[] (  const IntFunPoR &  iter_  )  const [inline, virtual]

Returns a new object with a different iterator. Parameters: iter_  the new iterator Implements NTFloatFun. Definition at line 180 of file NTFloatFun.h.

template<class Ntuple, class T = Float_t> NTFloatFunT<Ntuple, T>& NTFloatFunT< Ntuple, T >::operator[] (  int  offset_  )  const [inline, virtual]

Returns a new object with a different offset. Parameters: offset_  the new offset Implements NTFloatFun. Definition at line 186 of file NTFloatFun.h.

---

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

• NTFloatFun.h

---