RE: [ROOT] ROOT limitation....

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Hi Ray,

The CINT internal pre-processor is not a complete C preprocessor and has a
few limitations, one of which you hit.  To solve the issue use the -p
option.  I.e. apply the following patch to your makefile:
	diff makefile~ makefile
	51c51
	<       $(ROOTSYS)/bin/rootcint -f $@ -c $^
	---
	>       $(ROOTSYS)/bin/rootcint -f $@ -c -p $^

Also #define are not taken in consideration in the #pragma lines.  So you
need to use the following linkdef file:

#ifdef __CINT__
#pragma link C++ class vector<double>-!;
#pragma link C++ class bug-!;
#endif

Cheers,
Philippe.

-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Ray Fliller III
Sent: Thursday, May 29, 2003 10:29 AM
To: ROOT mailing list
Subject: [ROOT] ROOT limitation....




  Hello ROOTers,

     I am using ROOT CVS version from Monday on LINUX.

 I am trying make some streamerless and "operator>> less" dictionaries for
some external libraries.   One of the classes inherits from a template
class.  This template class has members that are templates that are
"#define"d to be vectors like:

#define buggyvec vector

when rootcint does to make the dictionary file I get:

Generating dictionary bugDict.cxx...
/opt/cern/root/bin/rootcint -f bugDict.cxx -c bug.h BugLinkDef.h
Limitation: can not handle macro buggyvec vector Use +P or -p option
FILE:bug.h LINE:5
Error: no such template buggyvec<double> FILE:bug.h LINE:6
Error: no such template buggyvec<double> FILE:BugLinkDef.h LINE:7
Error: link requested for unknown class buggyvec<double> FILE:BugLinkDef.h
LINE:7
Warning: Error occured during reading source files
Warning: Error occured during dictionary source generation
!!!Removing bugDict.cxx bugDict.h !!!
Error: /opt/cern/root/bin/rootcint: error loading headers...
make: *** [bugDict.cxx] Error 1

Enclosed is some code that demonstates the
error that I have.

Of course in the real case, the class that has the issues is inherited by
many others! :-(

Thanks for your help.


--

 RAINMAN
      "How much does a piece of gum cost Ray?"
      "About $100."
      "How much does a new car cost Ray?"
      "`Bout $100."
      "There goes working for NASA!"

==================================================================
Ray Fliller: rfliller@bnl.gov      Office Phone: (631)-344-6124
C-A Accelerator Physics            Dept. Fax: (631)-344-5954
Building 911B
Brookhaven National Lab
Upton, NY 11973                    Office: Room 211

http://www.agsrhichome.bnl.gov/People/rfliller/
==================================================================


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