From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-450239-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 20096 invoked by alias); 30 Apr 2014 12:29:49 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
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 20041 invoked by uid 48); 30 Apr 2014 12:29:44 -0000
From: "stanislav.manilov at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/60081] Internal compiler error: Error reporting routines re-entered.
Date: Wed, 30 Apr 2014 12:29:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 4.7.3
X-Bugzilla-Keywords:
X-Bugzilla-Severity: major
X-Bugzilla-Who: stanislav.manilov at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields:
Message-ID: <bug-60081-4-qW2M4xo1sA@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-60081-4@http.gcc.gnu.org/bugzilla/>
References: <bug-60081-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-04/txt/msg02259.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60081

--- Comment #4 from Stan Manilov <stanislav.manilov at gmail dot com> ---
Here is a simple way to reproduce the bug:

==============================
#include <vector>
#include <memory>

int main() {
        std::vector<std::unique_ptr<int>> v;
        std::unique_ptr<int> px(new int (1));
        v.push_back(px);
}
==============================

There is a bug in the code: push_back tries to copy the given element by
default. This should return an error along the lines of "Call to deleted copy
constructor of std::unique_ptr". Instead it gives ICE.

A solution to the bug in the code is to explicitly call std::move like so:

==============================
#include <vector>
#include <memory>

int main() {
        std::vector<std::unique_ptr<int>> v;
        std::unique_ptr<int> px(new int (1));
        v.push_back(std::move(px));
}
==============================