Re: crash on macro concat

From	Brian Havard <brianh@kheldar.apana.org.au>
Newsgroups	openwatcom.users.c_cpp
Subject	Re: crash on macro concat
Date	2017-04-21 15:12 +1000
Organization	OpenWatcom
Message-ID	<odcpbc$o1v$1@www.openwatcom.org> (permalink)
References	<oc51ig$1dp$1@www.openwatcom.org>

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On 06/04/17 13:27, David wrote:
>
> #define CONCAT_I(s1,s2) s1##s2
> #define CONCAT(s1,s2) CONCAT_I(s1,s2)
>
> #define SECOND_PARAM
>
> #define TEMPLATE(s1) CONCAT(s1, SECOND_PARAM)
>
> TEMPLATE(whatever)

I can confirm that this crashes the C++ compiler, wpp386 in both 1.9 and 
2.0, although my 2.0 install is from April 2015, not sure if there's 
anything newer.

The C compiler, wcc386, doesn't crash though.

Giving SECOND_PARAM a value stops the crash.

Commenting out "TEMPLATE(whatever)" also stops the crash.

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crash on macro concat "David" <nope@dont.invalid> - 2017-04-05 20:27 -0700
  Re: crash on macro concat Paul S. Person <psperson@ix.netscom.com.invalid> - 2017-04-06 09:28 -0700
  Re: crash on macro concat Hans-Bernhard Bröker <broeker@physik.rwth-aachen.de> - 2017-04-06 18:57 +0200
  Re: crash on macro concat Brian Havard <brianh@kheldar.apana.org.au> - 2017-04-21 15:12 +1000

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