NAME
rootcint - ROOT Dictionary generator
SYNOPSIS
rootcint header_file[+][-][!] ... [LinkDef.h] > dict_file
rootcint [-f] dict_file [-c] header_file[+][-][!] ... [LinkDef.h]
DESCRIPTION
The rootcint program generates the Streamer(), TBuffer &operator>>()
and ShowMembers() methods for ROOT classes, i.e. classes using the
ClassDef and ClassImp macros. In addition rootcint can also generate
the CINT dictionaries needed in order to get access to ones classes via
the interpreter.
rootcint can be used like:
rootcint TAttAxis.h[-][!] ... [LinkDef.h] > AxisGen.C
or
rootcint [-f] [AxDict.C] [-c] TAttAxis.h[-][!] ... [LinkDef.h]
The difference between the two is that in the first case only the
Streamer() and ShowMembers() methods are generated while in the latter
case a complete compileable file is generated (including the include
statements). The first method also allows the output to be appended to
an already existing file (using >> ). The optional minus behind the
include file name tells rootcint to not generate the Streamer() method.
A custom method must be provided by the user in that case. When using
option -c also the interpreter method interface stubs will be written
to the output file ( AxDict.C in the above case). By default the
output file will not be overwritten if it exists. Use the -f (force)
option to overwite the output file.
Before specifying the first header file one can also add include file
directories to be searched and preprocessor defines, like:
-I$../include -DDebug
The (optional) file LinkDef.h looks like:
#ifdef __CINT__
#pragma link off all globals;
#pragma link off all classes;
#pragma link off all functions;
#pragma link C++ class TAxis;
#pragma link C++ class TAttAxis-;
#pragma link C++ class TArrayC-!;
#pragma link C++ function StrDup;
#pragma link C++ function operator+(const TString&,const TString&);
#pragma link C++ global gROOT;
#pragma link C++ global gEnv;
#pragma link C++ enum EMessageTypes;
#endif
This file tells rootcint for which classes the method interface stubs
should be generated. A trailing ‘-’ in the class name tells rootcint to
not generate the Streamer() method. This is necessary for those classes
that need a customized Streamer() method. A trailing ‘!’ in the class
name tells rootcint to not generate the operator>>(TBuffer &b, MyClass
*&obj) method. This is necessary to be able to write pointers to
objects of classes not inheriting from TObject. When this file is not
specified a default version exporting the classes with the names equal
to the include files minus the .h is generated.
IMPORTANT:
1 LinkDef.h must be the last argument on the rootcint command
line.
2 Note that the LinkDef file name MUST contain the string:
LinkDef.h or linkdef.h, i.e. NA49_LinkDef.h is fine just like,
mylinkdef.h.
SEE ALSO
root(1), cint(1)
rootcint is documented fully on ROOT web-site
ORIGINAL AUTHORS
The ROOT team (see web page above):
Rene Brun and Fons Rademakers
COPYRIGHT
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
USA
AUTHOR
This manual page was written by Christian Holm Christensen
<cholm@nbi.dk>, for the Debian GNU/Linux system (but may be used by
others).