🚀 go-pugleaf

   Return-Path: gnulists@ai.mit.edu
   Date: Sun, 16 Aug 92 19:04:40 +0200
   From: tmb@idiap.ch (Thomas M. Breuel)
   Sender: gnulists@ai.mit.edu
   To: bug-g++@prep.ai.mit.edu
   Subject: uninitialized static members
   Reply-To: tmb@idiap.ch
   
   I'm having a problem with uninitialized static class members in GCC
   C++ 2.2.2.
   
   Basically, if I only define the static class member inside the class
   (without explicitly initializing it), I get a link-time undefined
   symbol error.
   
   I was under the impression that I didn't have to provide any
   definition (in addition to what is present in the header) for
   uninitialized static class members.
   
   				Thomas.
   
   PS: A little more concretely:
   
   struct NISTDigitImages {
   	static int *table;
   	...
   };
   
    ...
   
   gcc -L/homes/tmb/src/nvis/lib  rec-gh.o loadihdr.o ihead.o g4decomp.o winlib.o -lX11 -lvis -lm   -o rec-gh
   ld: Undefined symbol 
      __15NISTDigitImages$table 
   collect: /usr/bin/ld returned 2 exit status
   make: *** [rec-gh] Error 1
   
We have changed the behavior of G++ to match the ANSI spec.  The
behavior you are now seeing is "correct".  I'm sorry that it's less
convenient.

Michael