library: libPyROOT
#include "TPyReturn.h"

TPyReturn

class description - header file - source file - inheritance tree (.pdf)

class TPyReturn

Inheritance Chart:

TPyReturn


    public:

                      TPyReturn()
                      TPyReturn(PyObject* pyobject)
                      TPyReturn(const TPyReturn&)
              virtual ~TPyReturn()
       static TClass* Class()
      virtual TClass* IsA() const
               Char_t operator Char_t() const
                char* operator const char*() const
             Double_t operator Double_t() const
              Float_t operator Float_t() const
                Int_t operator Int_t() const
               Long_t operator Long_t() const
              Short_t operator Short_t() const
               UInt_t operator UInt_t() const
              ULong_t operator ULong_t() const
             UShort_t operator UShort_t() const
                void* operator void*() const
           TPyReturn& operator=(const TPyReturn&)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      PyObject* fPyObject  ! actual python object

Class Description

______________________________________________________________________________
                        Python expression eval result
                        =============================

 Transport class for bringing objects from python (dynamically typed) to CINT
 (statically typed). It is best to immediately cast a TPyReturn to the real
 type, either implicitly (for builtin types) or explicitly (through a void*
 cast for pointers to ROOT objects).

 Examples:

  root [0] TBrowser* b = (void*)TPython::Eval( "ROOT.TBrowser()" );
  root [1] int i = TPython::Eval( "1+1" );
  root [2] i
  (int)2
  root [3] double d = TPython::Eval( "1+3.1415" );
  root [4] d
  (double)4.14150000000000063e+00

TPyReturn()

 Construct a TPyReturn object from Py_None.

TPyReturn( PyObject* pyobject )

 Construct a TPyReturn from a python object. The python object may represent
 a ROOT object. Steals reference to given python object.

TPyReturn( const TPyReturn& other )

 Copy constructor. Applies python object reference counting.

TPyReturn& operator=( const TPyReturn& other )

 Assignment operator. Applies python object reference counting.

~TPyReturn()

 Destructor. Reference counting for the held python object is in effect.

operator const char*()

 Cast python return value to C-style string (may fail).

operator Char_t()

 Cast python return value to C++ char (may fail).

operator Long_t()

 Cast python return value to C++ long (may fail).

operator ULong_t()

 Cast python return value to C++ unsigned long (may fail).

operator Double_t()

 Cast python return value to to C++ double (may fail).

operator void*()

 Cast python return value to ROOT object with dictionary (may fail; note that
 you have to use the void* converter, as CINT will not call any other).

operator Int_t()

operator Short_t()

operator UInt_t()

operator UShort_t()

operator Float_t()

Author: Wim Lavrijsen, May 2004
Last update: root/pyroot:$Name: $:$Id: TPyReturn.cxx,v 1.7 2006/07/01 21:19:55 brun Exp $

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