Hi Birger,
Thank you for reporting this problem. This is a Cint bug. Initialization
of static member array is not supported.
class A {
static int a[];
};
int A::a[] = { 1,2,3 }; // Problem
Please use following workaround.
class A {
static int *a; // declare pointer
};
int a_body[] = { 1,2,3 }; // declare body of array with initialization.
int* A::a = a_body; // assign pointer to array body
This way everything else stays the same.
The problem happens at array initialization. So following code works fine.
class A {
static int a[3]; // this is fine
public:
A() { a[0]=1; a[1]=2; a[2]=3; } // this is fine
};
Thank you
Masaharu Goto
>Hi,
>
>I have problems with the following code:
>
>eventsample.h:
>#ifndef eventsample_h
>#define eventsample_h
>
>#if !defined(__CINT__) || defined(__MAKECINT__)
>#include <TTree.h>
>#endif
>
>class EventSample{
> Int_t varnum;
> IEvent *event;
> public:
> static Float_t *minx,*maxx;
> static Char_t *varnames[];
>
> EventSample(Char_t *filename=0, Char_t *obj=0);
> virtual ~EventSample();
>};
>
>Float_t *EventSample::minx=0;
>Float_t *EventSample::maxx=0;
>
>Char_t *EventSample::varnames[]={
> "xg","q2g","ptje","et","ebwj","ebnj"
>};
>// eventsample_h
>#endif
>
>This header included in the main-program compiles fine with
>xlC/egcs/gcc2.7.2 but Cint crashes:
>
>root [1] .L eventsample.C
>Error: array initialization FILE:./eventsample.h LINE:23
>Warning: Automatic variable "q2g" allocated in global scope
>FILE:./eventsample.h LINE:23
>Error: Undeclared variable "q2g" FILE:./eventsample.h LINE:23
>*** Interpreter error recovered ***
>
>Is this my stupidness and wrong c++ code or does the interpreter have a
>bug?
>On the other hand it would not be necessary to tie in the names of the
>variables if one would be able to extract them out of the file which is a
>converted ntuple and I use an automatically generated event-class to
>access it. I only need the variable-branches attached to the entries of a
>float-Array and their names in the same sequence in a char** array. How
>does one traverse the tree to figure out the number of branches and their
>names?
>
>Cheers,
> Birger
>/------------------------------------------------------------\
>| Birger Koblitz koblitz@mail.desy.de |
>| Max-Planck-Institut fuer Physik |
>| (Werner Heisenberg-Institut) |
>| DESY-FH1K Tel. (40) 8998-3971 |
>| Notkestr. 85 |
>| D-22603 HAMBURG |
>\------------------------------------------------------------/
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