Logo ROOT   6.19/01
Reference Guide
TDataType Class Reference

Basic data type descriptor (datatype information is obtained from CINT).

This class describes the attributes of type definitions (typedef's). The TROOT class contains a list of all currently defined types (accessible via TROOT::GetListOfTypes()).

Definition at line 44 of file TDataType.h.

Public Member Functions

 TDataType (TypedefInfo_t *info=0)
 Default TDataType ctor. More...
 
 TDataType (const char *typenam)
 Constructor for basic data types, like "char", "unsigned char", etc. More...
 
virtual ~TDataType ()
 TDataType dtor deletes adopted CINT TypedefInfo object. More...
 
const char * AsString (void *buf) const
 Return string containing value in buffer formatted according to the basic data type. More...
 
const char * GetFullTypeName () const
 Get full type description of typedef, e,g.: "class TDirectory*". More...
 
Int_t GetType () const
 
TString GetTypeName ()
 Get basic type of typedef, e,g. More...
 
Long_t Property () const
 Get property description word. For meaning of bits see EProperty. More...
 
Int_t Size () const
 Get size of basic typedef'ed type. More...
 
- Public Member Functions inherited from TDictionary
 TDictionary ()
 
 TDictionary (const char *name)
 
 TDictionary (const TDictionary &dict)
 
virtual ~TDictionary ()
 
void CreateAttributeMap ()
 
TDictAttributeMapGetAttributeMap () const
 
TDictionaryoperator= (const TDictionary &other)
 
- 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 ()
 Check and record whether 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...
 

Static Public Member Functions

static void AddBuiltins (TCollection *types)
 Create the TDataType objects for builtins. More...
 
static TDataTypeGetDataType (EDataType type)
 Given a EDataType type, get the TDataType* that represents it. More...
 
static EDataType GetType (const std::type_info &typeinfo)
 Set type id depending on name. More...
 
static const char * GetTypeName (EDataType type)
 Return the name of the type. More...
 
- Static Public Member Functions inherited from TDictionary
static TDictionaryGetDictionary (const char *name)
 
static TDictionaryGetDictionary (const std::type_info &typeinfo)
 
- 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

 TDataType (const TDataType &)
 copy constructor More...
 
TDataTypeoperator= (const TDataType &)
 assignment operator More...
 
- Protected Member Functions inherited from TDictionary
Bool_t UpdateInterpreterStateMarker ()
 the Cling ID of the transaction that last updated the object 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 ()
 

Private Member Functions

void CheckInfo ()
 Refresh the underlying information. More...
 
void SetType (const char *name)
 Set type id depending on name. More...
 

Private Attributes

TypedefInfo_t * fInfo
 
Long_t fProperty
 
Int_t fSize
 pointer to CINT typedef info More...
 
TString fTrueName
 
EDataType fType
 
Int_t fTypeNameIdx
 
Int_t fTypeNameLen
 

Static Private Attributes

static TDataTypefgBuiltins [kNumDataTypes] = {0}
 

Additional Inherited Members

- Public Types inherited from TDictionary
typedef const voidDeclId_t
 
enum  ESTLType {
  kNone = ROOT::kNotSTL, kVector = ROOT::kSTLvector, kList = ROOT::kSTLlist, kForwardlist = ROOT::kSTLforwardlist,
  kDeque = ROOT::kSTLdeque, kMap = ROOT::kSTLmap, kMultimap = ROOT::kSTLmultimap, kSet = ROOT::kSTLset,
  kMultiset = ROOT::kSTLmultiset, kUnorderedSet = ROOT::kSTLunorderedset, kUnorderedMultiset = ROOT::kSTLunorderedmultiset, kUnorderedMap = ROOT::kSTLunorderedmap,
  kUnorderedMultimap = ROOT::kSTLunorderedmultimap, kBitset = ROOT::kSTLbitset
}
 
- 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)
}
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 

#include <TDataType.h>

Inheritance diagram for TDataType:
[legend]

Constructor & Destructor Documentation

◆ TDataType() [1/3]

TDataType::TDataType ( const TDataType dt)
protected

copy constructor

Definition at line 72 of file TDataType.cxx.

◆ TDataType() [2/3]

TDataType::TDataType ( TypedefInfo_t *  info = 0)

Default TDataType ctor.

TDataTypes are constructed in TROOT via a call to TCling::UpdateListOfTypes().

Definition at line 36 of file TDataType.cxx.

◆ TDataType() [3/3]

TDataType::TDataType ( const char *  typenam)

Constructor for basic data types, like "char", "unsigned char", etc.

Definition at line 59 of file TDataType.cxx.

◆ ~TDataType()

TDataType::~TDataType ( )
virtual

TDataType dtor deletes adopted CINT TypedefInfo object.

Definition at line 105 of file TDataType.cxx.

Member Function Documentation

◆ AddBuiltins()

void TDataType::AddBuiltins ( TCollection types)
static

Create the TDataType objects for builtins.

Definition at line 408 of file TDataType.cxx.

◆ AsString()

const char * TDataType::AsString ( void buf) const

Return string containing value in buffer formatted according to the basic data type.

The result needs to be used or copied immediately.

Definition at line 235 of file TDataType.cxx.

◆ CheckInfo()

void TDataType::CheckInfo ( )
private

Refresh the underlying information.

Definition at line 375 of file TDataType.cxx.

◆ GetDataType()

TDataType * TDataType::GetDataType ( EDataType  type)
static

Given a EDataType type, get the TDataType* that represents it.

Definition at line 440 of file TDataType.cxx.

◆ GetFullTypeName()

const char * TDataType::GetFullTypeName ( ) const

Get full type description of typedef, e,g.: "class TDirectory*".

Definition at line 175 of file TDataType.cxx.

◆ GetType() [1/2]

Int_t TDataType::GetType ( ) const
inline

Definition at line 68 of file TDataType.h.

◆ GetType() [2/2]

EDataType TDataType::GetType ( const std::type_info &  typeinfo)
static

Set type id depending on name.

Definition at line 189 of file TDataType.cxx.

◆ GetTypeName() [1/2]

TString TDataType::GetTypeName ( )

Get basic type of typedef, e,g.

: "class TDirectory*" -> "TDirectory". Result needs to be used or copied immediately.

Definition at line 149 of file TDataType.cxx.

◆ GetTypeName() [2/2]

const char * TDataType::GetTypeName ( EDataType  type)
static

Return the name of the type.

Definition at line 113 of file TDataType.cxx.

◆ operator=()

TDataType & TDataType::operator= ( const TDataType dt)
protected

assignment operator

Definition at line 86 of file TDataType.cxx.

◆ Property()

Long_t TDataType::Property ( ) const
virtual

Get property description word. For meaning of bits see EProperty.

Implements TDictionary.

Definition at line 287 of file TDataType.cxx.

◆ SetType()

void TDataType::SetType ( const char *  name)
private

Set type id depending on name.

Definition at line 296 of file TDataType.cxx.

◆ Size()

Int_t TDataType::Size ( ) const

Get size of basic typedef'ed type.

Definition at line 366 of file TDataType.cxx.

Member Data Documentation

◆ fgBuiltins

TDataType * TDataType::fgBuiltins = {0}
staticprivate

Definition at line 54 of file TDataType.h.

◆ fInfo

TypedefInfo_t* TDataType::fInfo
private

Definition at line 47 of file TDataType.h.

◆ fProperty

Long_t TDataType::fProperty
private

Definition at line 50 of file TDataType.h.

◆ fSize

Int_t TDataType::fSize
private

pointer to CINT typedef info

Definition at line 48 of file TDataType.h.

◆ fTrueName

TString TDataType::fTrueName
private

Definition at line 51 of file TDataType.h.

◆ fType

EDataType TDataType::fType
private

Definition at line 49 of file TDataType.h.

◆ fTypeNameIdx

Int_t TDataType::fTypeNameIdx
private

Definition at line 52 of file TDataType.h.

◆ fTypeNameLen

Int_t TDataType::fTypeNameLen
private

Definition at line 53 of file TDataType.h.


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