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:
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).
