From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-61488-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 3692 invoked by alias); 23 Jun 2003 22:16:59 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 24934 invoked by uid 48); 23 Jun 2003 22:12:35 -0000
Date: Mon, 23 Jun 2003 22:16:00 -0000
Message-ID: <20030623221235.24933.qmail@sources.redhat.com>
From: "jfc at legra dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
In-Reply-To: <20030623155039.11295.jfc@legra.com>
References: <20030623155039.11295.jfc@legra.com>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug c++/11295] [3.3/3.4 Regression] *reinterpret_cast<std::string *> causes ICE
X-Bugzilla-Reason: CC
X-SW-Source: 2003-06/txt/msg02504.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11295



------- Additional Comments From jfc at legra dot com  2003-06-23 22:12 -------
No question that the behavior isn't defined, but I dispute that it can't work.

My example is derived from similar code which does seem to do what I intended.

static char c[] = {3,0,0,0, 4,0,0,0, 0,0,0,0, 'H', 'i', '!', '\0'};

std::string fakestatic()
{
  struct fakestring { void *p; } rv;
  rv.p = &c[12];
  return *reinterpret_cast<std::string *>(&rv);
}

With the particular string implementation I am using, this appears to generate a
usable std::string object.  And it doesn't crash the compiler.