Error when importing header : Symbol constchar is not defined in current scope

ValentinF · March 21, 2017, 3:56pm

Hello dear rescuers,

I’m using ROOT 5.34 and trying to load a C++ function with PyUranie but it seems that the C++ interpreter fails to load the XML Parser header.

When executing : .L tinyxml2.h I get the following errors

Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Illegal pointer operation (tovalue) tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Illegal pointer operation (tovalue) tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Illegal pointer operation (tovalue) tinyxml2.h:619:
Error: Symbol ;} is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol ;returnp;}staticchar is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Symbol charp is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: G__getvariable: expression tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: Symbol {returntrue;}returnch is not defined in current scope tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: G__getvariable: expression tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: Symbol ch is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol q is not defined in current scope tinyxml2.h:619:
Warning: Automatic variable intnChar is allocated tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol q is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol q is not defined in current scope tinyxml2.h:619:
Error: Symbol nChar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol q is not defined in current scope tinyxml2.h:619:
Error: Symbol nChar is not defined in current scope tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: unexpected character in expression 0;}inlinestaticboolIsUTF8Continuation(charp tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Syntax Error: !=0;}staticconstchar tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol bool is not defined in current scope tinyxml2.h:619:
Error: Symbol hasBOM is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol bool is not defined in current scope tinyxml2.h:619:
Error: Symbol hasBOM is not defined in current scope tinyxml2.h:619:
Error: Symbol bool is not defined in current scope tinyxml2.h:619:
Error: Symbol hasBOM is not defined in current scope tinyxml2.h:619:
Error: Symbol ;staticconstchar is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol length is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol length is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol length is not defined in current scope tinyxml2.h:619:
Error: Symbol unsignedlonginput is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol output is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol length is not defined in current scope tinyxml2.h:619:
Error: Symbol intv is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol buffer is not defined in current scope tinyxml2.h:619:
Error: Symbol intbufferSize is not defined in current scope tinyxml2.h:619:
Error: Symbol unsignedv is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol buffer is not defined in current scope tinyxml2.h:619:
Error: Symbol intbufferSize is not defined in current scope tinyxml2.h:619:
Error: Symbol boolv is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol buffer is not defined in current scope tinyxml2.h:619:
Error: Symbol intbufferSize is not defined in current scope tinyxml2.h:619:
Error: Symbol floatv is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol buffer is not defined in current scope tinyxml2.h:619:
Error: Symbol intbufferSize is not defined in current scope tinyxml2.h:619:
Error: Symbol doublev is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol buffer is not defined in current scope tinyxml2.h:619:
Error: Symbol intbufferSize is not defined in current scope tinyxml2.h:619:
Error: Symbol int64_tv is not defined in current scope tinyxml2.h:619:
Error: Symbol char is not defined in current scope tinyxml2.h:619:
Error: Symbol buffer is not defined in current scope tinyxml2.h:619:
Error: Symbol intbufferSize is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol str is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol str is not defined in current scope tinyxml2.h:619:
Error: Symbol unsigned is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol str is not defined in current scope tinyxml2.h:619:
Error: Symbol bool is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol str is not defined in current scope tinyxml2.h:619:
Error: Symbol float is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol str is not defined in current scope tinyxml2.h:619:
Error: Symbol double is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol str is not defined in current scope tinyxml2.h:619:
Error: Symbol int64_t is not defined in current scope tinyxml2.h:619:
Error: Symbol value is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol writeTrue is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol writeFalse is not defined in current scope tinyxml2.h:619:
Error: Symbol ;private:staticconstchar is not defined in current scope tinyxml2.h:619:
Error: Symbol writeBoolTrue;staticconstchar is not defined in current scope tinyxml2.h:619:
Error: Symbol writeBoolFalse;} is not defined in current scope tinyxml2.h:619:
Error: Symbol constchar is not defined in current scope tinyxml2.h:619:
Error: Symbol p is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: Symbol int is not defined in current scope tinyxml2.h:619:
Error: Symbol curLineNumPtr is not defined in current scope tinyxml2.h:619:
Error: improper lvalue tinyxml2.h:619:
*** Interpreter error recovered ***

It seems that when I delete the macro at the class declaration (line 530), it solves the problem which then reappears at the next class declaration with the same macro. I then keep deleting this macro each time which seems to solve the problem.
If I directly replace the macro by its value in my configuration : __attribute__((visibility("default"))), it causes the same problem.

Is there a missing feature in the interpreter ?

Thanks for any help or answer.

tinyxml2.h (66.2 KB)

couet · March 21, 2017, 4:01pm

I just tried what to load this header on my machine.

With ROOT 5 I get

$ root
  *******************************************
  *                                         *
  *        W E L C O M E  to  R O O T       *
  *                                         *
  *   Version   5.34/37      6 April 2016   *
  *                                         *
  *  You are welcome to visit our Web site  *
  *          http://root.cern.ch            *
  *                                         *
  *******************************************

ROOT 5.34/37 (heads/v5-34-00-patches@v5-34-36-1-g4008982, Mar 17 2017, 11:33:00 on macosx64)

CINT/ROOT C/C++ Interpreter version 5.18.00, July 2, 2010
Type ? for help. Commands must be C++ statements.
Enclose multiple statements between { }.
root [0] .L tinyxml2.h
Error: Invalid type 'denorm' in declaration of 'present' /Users/couet/git/root534-cocoa-bin/cint/cint/stl/_climits.h:32:
*** Interpreter error recovered ***
root [1] .q

With ROOT 6 I get:

$ root
   ----------------------------------------------------------------
  | Welcome to ROOT 6.09/03                    http://root.cern.ch |
  |                                   (c) 1995-2016, The ROOT Team |
  | Built for macosx64                                             |
  | From heads/master@v6-09-02-145-ge1b7ca7, Mar 20 2017, 10:26:53 |
  | Try '.help', '.demo', '.license', '.credits', '.quit'/'.q'     |
   ----------------------------------------------------------------

root [0] .L tinyxml2.h
root [1]

I am on Mac

Axel · March 21, 2017, 10:17pm

Indeed - ROOT 5 understands most C++ and misunderstands some. You’ll have to hide parts that are too difficult for CINT (#ifndef __CINT__).

ROOT 6 just works. Time to switch, maybe?

Cheers, Axel.

ValentinF · March 22, 2017, 8:52am

Thank you both for your answers.

I’m working with a software using ROOT 5 so I’ll have to wait for them to switch to ROOT 6.
In the time being I’ll follow your advice Axel.

Thanks again.

ValentinF · March 24, 2017, 3:26pm

Hi again,

I’ve tried your solution Axel but it turns out that CINT generates more errors than the gcc compile with the option ‘std=c++03’ so it is quite hard to make the full code compatible with it.

So I thought of a workaround, like an implementation of the pimpl idiom pattern.
Like recommended in this thread : Rootcint && C++11.

But i’m wondering about compatibility between my compilers with which I will generate the library and the compiler or interpreter CINT.
This thread is implying that it should be fine :http://softwareengineering.stackexchange.com/questions/162408/can-a-compiled-c11-library-lib-dll-etc-be-linked-in-older-c-compilers.
But I’ve also seen some post saying the contrary, presenting the C++ ABI as being the problem?

So I would like some advice. Is it a good workaround and if so, is there a best way to implement it?

Thanks for any effort.
Valentin

Axel · March 26, 2017, 9:39pm

Hi,

I don’t really know how to help:

You have code that is too complex for CINT. You can hide it, either using #ifndef __CINT__ or indeed by hiding the library header from your header. I don’t see where ABI compatibility would become an issue here.

But these are all just workarounds. The only proper solution is to move to ROOT 6. It’s a new major version adopted by virtually all experiments for a reason. Do yourself a favor and ask the people maintaining your software to move. Asking for help with ROOT 5’s limitations is fairly unproductive for us, too…

Cheers, Axel