On 21 Nov 97 at 13:40, Nick van Eijndhoven wrote:
> Hi Valery,
> Could you try "cl /Za /LD /MD ....." in which case NO C++ extensions
> are accepted. Maybe this will give you the warnings. To my opinion
> one should always use the 'strict ANSI requirement' in order to be
> able to transport the code to different platforms.
No I can NOT apply this since this class is derived from TShape
one and involves 3 ROOT global pointers, namely: gNode, gSize3D and
gPad. All of these 3 pointers are defined within two other DLLs. To
access them the program MUST define these variables as follows:
/*Z,+PATCH,//ROOT/INCLUDE.*/
/*Z,+KEEP,DllImport,T=C..*/
/*CMZ : 0.90/10 05/12/96 12.35.16 by Valery Fine(fine@vxcern.cern.ch)*/
/*-- Author : Valery Fine(fine@vxcern.cern.ch) 17/09/96*/
/*
This include file defines DllImport/DllExport macro
to build DLLs under Windows OS.
They are defined as dummy for UNIX's
*/
#ifndef ROOT_DllImport
#define ROOT_DllImport
#ifndef __CINT__
#if defined(WIN32) && defined(_DLL)
# define DllImport __declspec( dllimport )
# define DllExport __declspec( dllexport )
#else
# define DllImport
# define DllExport
#endif
# define EXTERN DllImport extern
#endif
#endif
where "__declspec( dllimport )" and "__declspec( dllexport )"
both are very Microsoft EXTENSIONs which I CAN NOT disable. Sorry.
By the way this means if anyone WANTs to create his own C++
class and some global variable pointing this class and want to see
this variable ACROSS several DLLs (under Windows) he MUST apply the
same macro, namely instead of C++
extern <variable>
MUST be
EXTERN <variable>
where EXTERN is a macro defined above.
If someone knows (I would not say *standard* since usually for
UNIX-world this word is a nick-name of the UNIX) but an UNIVERSAL
solution I'll appreciate it and will introduce this immediately
With my best regards,
Valery
Dr. Valeri Faine (Valery Fine)
------------ ------------- Phone: +41 22 767 4921
CERN FAX : +41 22 767 7155
CH-1211 Geneva, 23 mailto:fine@mail.cern.ch
Switzerland http://nicewww.cern.ch/~fine
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