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From: "janis at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/33975] [4.1/4.2/4.3 Regression] Incomplete types may be derefenced
Date: Mon, 12 Nov 2007 18:01:00 -0000	[thread overview]
Message-ID: <20071112180153.11237.qmail@sourceware.org> (raw)
In-Reply-To: <bug-33975-10252@http.gcc.gnu.org/bugzilla/>

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------- Comment #2 from janis at gcc dot gnu dot org  2007-11-12 18:01 -------
Mainline now reports an error for this code:

elm3b187% /opt/gcc-nightly/trunk/bin/g++ 33975.cc
33975.cc: In function ‘int main()’:
33975.cc:8: error: invalid use of incomplete type ‘struct S’
33975.cc:1: error: forward declaration of ‘struct S’
33975.cc:8: error:   initializing argument 1 of ‘int f(S)’

The patch that fixed this for mainline:

    http://gcc.gnu.org/viewcvs?view=rev&rev=129968

    r129968 | jakub | 2007-11-07 19:27:27 +0000 (Wed, 07 Nov 2007)

Here's the source file I used:

struct S;
int f(S s);

int
main ()
{
  S *p;
  int i = f(*p);
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33975


  parent reply	other threads:[~2007-11-12 18:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-01 17:58 [Bug c++/33975] New: " andrew dot stubbs at st dot com
2007-11-02 13:59 ` [Bug c++/33975] " rguenth at gcc dot gnu dot org
2007-11-12 18:01 ` janis at gcc dot gnu dot org [this message]
2007-11-12 19:50 ` pinskia at gcc dot gnu dot org

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