d83_sven_a@tekno.chalmers.se (Sven (Sciz) Axelsson) (02/03/89)
OK, now I have tracked down the bug I wrote about yesterday. It was not at all
what I thought it was - some sort of compiler limitation - but a real bug in
the lexical analyzer of MPW C 3.0 beta 1. Try this:
bomb()
{
int dum;
dum = undeclared[1]; /* here it is! */
}
The compiler bombs with ID=2 (today) or ID=5 (yesterday) as soon as an
undeclared array is referenced. Is this a known bug? Anyway, you all know
of it now - beware!
+-------------------------+--------------------------------+------------------+
| Sven Axelsson | d83_sven_a@tekno.chalmers.se | DISCLAIMER: |
| dep:t of Linguistics | (^^ best ^^) | |
| univ. of Gothenburg | dlv_sa@hum.gu.se | This is not |
| SWEDEN | usdsa@seguc21.bitnet | a disclaimer. |
+-------------------------+--------------------------------+------------------+keith@Apple.COM (Keith Rollin) (02/05/89)
In article <527@tekno.chalmers.se> d83_sven_a@tekno.chalmers.se (Sven (Sciz) Axelsson) writes: >OK, now I have tracked down the bug I wrote about yesterday. It was not at all >what I thought it was - some sort of compiler limitation - but a real bug in >the lexical analyzer of MPW C 3.0 beta 1. Try this: > > bomb() > { > int dum; > > dum = undeclared[1]; /* here it is! */ > } > >The compiler bombs with ID=2 (today) or ID=5 (yesterday) as soon as an >undeclared array is referenced. Is this a known bug? Anyway, you all know >of it now - beware! > If you are going to use pre-final software, you should expect some bugs to pop up. Here is what happened when I tried your fragment with the final version of MPW C 3.0: c test.c # # dum = undeclared[1]; /* here it is! */ # ? ### Error 23 identifier not declared # ? ### Error 211 Pointer type required # ? ### Error 30 ';' expected # ? ### Error 22 error in factor #------------------------------------------------------------------------------- ------------------------------------------------- File "test.c"; Line 5 #------------------------------------------------------------------------------- ------------------------------------------------- If, when you get the final version of MPW 3.0, you still have this problem, be sure to let us know! Keith Rollin --- Apple Computer, Inc. --- Developer Technical Support INTERNET: keith@apple.com UUCP: {decwrl, hoptoad, nsc, sun, amdahl}!apple!keith "Argue for your limitations, and sure enough...they're yours" -Bach, Illusions