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Reference Guide
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TCut Class Reference

A specialized string object used for TTree selections.

A TCut object has a name and a title. It does not add any data members compared to a TNamed. It only add a set of operators to facilitate logical string concatenation. For example, assume

cut1 = "x<1" and cut2 = "y>2"

then

cut1 && cut2 will be the string "(x<1)&&(y>2)"

Operators =, +=, +, *, !, &&, || overloaded.

Examples of use:

Root > TCut c1 = "x<1"
Root > TCut c2 = "y<0"
Root > TCut c3 = c1&&c2
Root > ntuple.Draw("x", c1)
Root > ntuple.Draw("x", c1||"x>0")
Root > ntuple.Draw("x", c1&&c2)
Root > ntuple.Draw("x", "(x+y)"*(c1&&c2))

Definition at line 25 of file TCut.h.

Public Member Functions

 TCut ()
 Constructor. More...
 
 TCut (const char *title)
 Constructor. More...
 
 TCut (const char *name, const char *title)
 Constructor. More...
 
 TCut (const TCut &cut)
 Copy Constructor. More...
 
virtual ~TCut ()
 Typical destructor. More...
 
 operator const char * () const
 
Bool_t operator!= (const char *rhs) const
 Comparison. More...
 
Bool_t operator!= (const TCut &rhs) const
 Comparison. More...
 
TCutoperator*= (const char *rhs)
 Multiplication. More...
 
TCutoperator*= (const TCut &rhs)
 Multiplication. More...
 
TCutoperator+= (const char *rhs)
 Addition. More...
 
TCutoperator+= (const TCut &rhs)
 Addition. More...
 
TCutoperator= (const char *rhs)
 Assignment. More...
 
TCutoperator= (const TCut &rhs)
 Assignment. More...
 
Bool_t operator== (const char *rhs) const
 Comparison. More...
 
Bool_t operator== (const TCut &rhs) const
 Comparison. More...
 
- Public Member Functions inherited from TNamed
 TNamed ()
 
 TNamed (const char *name, const char *title)
 
 TNamed (const TString &name, const TString &title)
 
 TNamed (const TNamed &named)
 TNamed copy ctor. More...
 
virtual ~TNamed ()
 TNamed destructor. More...
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare two TNamed objects. More...
 
virtual void Copy (TObject &named) const
 Copy this to obj. More...
 
virtual void FillBuffer (char *&buffer)
 Encode TNamed into output buffer. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual Bool_t IsSortable () const
 
virtual void ls (Option_t *option="") const
 List TNamed name and title. More...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual void Print (Option_t *option="") const
 Print TNamed name and title. More...
 
virtual void SetName (const char *name)
 Set the name of the TNamed. More...
 
virtual void SetNameTitle (const char *name, const char *title)
 Set all the TNamed parameters (name and title). More...
 
virtual void SetTitle (const char *title="")
 Set the title of the TNamed. More...
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
ULong_t CheckedHash ()
 Checked and record whether for this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Private Member Functions

Bool_t operator< (const TCut &rhs)
 
Bool_t operator<= (const TCut &rhs)
 
Bool_t operator> (const TCut &rhs)
 
Bool_t operator>= (const TCut &rhs)
 

Friends

TCut operator! (const TCut &rhs)
 Logical negation. More...
 
TCut operator&& (const TCut &lhs, const char *rhs)
 Logical and. More...
 
TCut operator&& (const char *lhs, const TCut &rhs)
 Logical and. More...
 
TCut operator&& (const TCut &lhs, const TCut &rhs)
 Logical and. More...
 
TCut operator* (const TCut &lhs, const char *rhs)
 Multiplication. More...
 
TCut operator* (const char *lhs, const TCut &rhs)
 Multiplication. More...
 
TCut operator* (const TCut &lhs, const TCut &rhs)
 Multiplication. More...
 
TCut operator+ (const TCut &lhs, const char *rhs)
 Addition. More...
 
TCut operator+ (const char *lhs, const TCut &rhs)
 Addition. More...
 
TCut operator+ (const TCut &lhs, const TCut &rhs)
 Addition. More...
 
TCut operator|| (const TCut &lhs, const char *rhs)
 Logical or. More...
 
TCut operator|| (const char *lhs, const TCut &rhs)
 Logical or. More...
 
TCut operator|| (const TCut &lhs, const TCut &rhs)
 Logical or. More...
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 

#include <TCut.h>

Inheritance diagram for TCut:
[legend]

Constructor & Destructor Documentation

TCut::TCut ( )

Constructor.

Definition at line 47 of file TCut.cxx.

TCut::TCut ( const char *  title)

Constructor.

Definition at line 54 of file TCut.cxx.

TCut::TCut ( const char *  name,
const char *  title 
)

Constructor.

Definition at line 61 of file TCut.cxx.

TCut::TCut ( const TCut cut)

Copy Constructor.

Definition at line 68 of file TCut.cxx.

TCut::~TCut ( )
virtual

Typical destructor.

Definition at line 75 of file TCut.cxx.

Member Function Documentation

TCut::operator const char * ( ) const
inline

Definition at line 77 of file TCut.h.

Bool_t TCut::operator!= ( const char *  rhs) const

Comparison.

Definition at line 98 of file TCut.cxx.

Bool_t TCut::operator!= ( const TCut rhs) const

Comparison.

Definition at line 106 of file TCut.cxx.

TCut & TCut::operator*= ( const char *  rhs)

Multiplication.

Definition at line 158 of file TCut.cxx.

TCut & TCut::operator*= ( const TCut rhs)

Multiplication.

Definition at line 171 of file TCut.cxx.

TCut & TCut::operator+= ( const char *  rhs)

Addition.

Definition at line 132 of file TCut.cxx.

TCut & TCut::operator+= ( const TCut rhs)

Addition.

Definition at line 145 of file TCut.cxx.

Bool_t TCut::operator< ( const TCut rhs)
private
Bool_t TCut::operator<= ( const TCut rhs)
private
TCut & TCut::operator= ( const char *  rhs)

Assignment.

Definition at line 114 of file TCut.cxx.

TCut & TCut::operator= ( const TCut rhs)

Assignment.

Definition at line 123 of file TCut.cxx.

Bool_t TCut::operator== ( const char *  rhs) const

Comparison.

Definition at line 82 of file TCut.cxx.

Bool_t TCut::operator== ( const TCut rhs) const

Comparison.

Definition at line 90 of file TCut.cxx.

Bool_t TCut::operator> ( const TCut rhs)
private
Bool_t TCut::operator>= ( const TCut rhs)
private

Friends And Related Function Documentation

TCut operator! ( const TCut rhs)
friend

Logical negation.

Definition at line 292 of file TCut.cxx.

TCut operator&& ( const TCut lhs,
const char *  rhs 
)
friend

Logical and.

Definition at line 232 of file TCut.cxx.

TCut operator&& ( const char *  lhs,
const TCut rhs 
)
friend

Logical and.

Definition at line 240 of file TCut.cxx.

TCut operator&& ( const TCut lhs,
const TCut rhs 
)
friend

Logical and.

Definition at line 248 of file TCut.cxx.

TCut operator* ( const TCut lhs,
const char *  rhs 
)
friend

Multiplication.

Definition at line 208 of file TCut.cxx.

TCut operator* ( const char *  lhs,
const TCut rhs 
)
friend

Multiplication.

Definition at line 216 of file TCut.cxx.

TCut operator* ( const TCut lhs,
const TCut rhs 
)
friend

Multiplication.

Definition at line 224 of file TCut.cxx.

TCut operator+ ( const TCut lhs,
const char *  rhs 
)
friend

Addition.

Definition at line 184 of file TCut.cxx.

TCut operator+ ( const char *  lhs,
const TCut rhs 
)
friend

Addition.

Definition at line 192 of file TCut.cxx.

TCut operator+ ( const TCut lhs,
const TCut rhs 
)
friend

Addition.

Definition at line 200 of file TCut.cxx.

TCut operator|| ( const TCut lhs,
const char *  rhs 
)
friend

Logical or.

Definition at line 256 of file TCut.cxx.

TCut operator|| ( const char *  lhs,
const TCut rhs 
)
friend

Logical or.

Definition at line 268 of file TCut.cxx.

TCut operator|| ( const TCut lhs,
const TCut rhs 
)
friend

Logical or.

Definition at line 280 of file TCut.cxx.

Libraries for TCut:
[legend]

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