rootcint problems with 2.00.09 on Linux/egcs

From: stefan kluth (skluth@mh1.lbl.gov)
Date: Wed Jul 01 1998 - 22:27:02 MEST


Hi, 

after installing 2.00.09 for Linux/egcs I find that rootcint generates
code which does not compile. I created two dictionary code files, one with
2.00.08 and one with 2.00.09 and diff'ed it. The differences coincide with
the lines where the compiler flags errors. Here is an example:

dictionary code file made with rootcint 2.00.08 (compiles and works):

...

static int G__AllJets_AllJets_2_0(G__value *result7,char *funcname,struct
G__param *libp,int hash) {
   AllJets *p=NULL;
   switch(libp->paran) {
   case 3:
      p = new AllJets(
*(HepConstAList<HepLorentzVector>*)libp->para[0].ref,*(AllJets::Algorithm*)
libp->para[1].ref,*(int*)libp->para[2].ref);

...


dictionary code file made with rootcint 2.00.09:

...

static int G__AllJets_AllJets_2_0(G__value *result7,char *funcname,struct
G__param *libp,int hash) {
   AllJets *p=NULL;
   switch(libp->paran) {
   case 3:
      p = new AllJets( 
*(HepConstAList<HepLorentzVector>*)libp->para[0].ref,
libp->para[1].ref?*(AllJets::Algorithm*)libp->para[1].ref:G__Mint(libp->para[1])
,libp->para[2].ref?*(int*)libp->para[2].ref:G__Mint(libp->para[2]));

...


The egcs g++ compiler says:
AllJetsCint.cc: In function `int G__AllJets_AllJets_2_0(struct G__value *,
char *, struct G__param *, int)':
AllJetsCint.cc:371: no matching function for call to `AllJets::AllJets
(HepConstAList<HepLorentzVector> &, int, int &)'


The difference between rootcint for 2.00.08 and 2.00.09 seems to be that
rootcint inserts logical expressions " ... ? ... : ... " instead of just
casting and dereferencing pointers. This leads to the wrong argument types
for the call of the constructor. 

Since this breaks my application I can't use 2.00.09 for the moment. 

cheers, Stefan

---Stefan Kluth---------------Lynen Fellow----------------|\--|\-------
-  LBNL, MS 50A 2160       -  phone:  +1 510 495 2376  -  |/  |/      -
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