From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-prs-return-25909-listarch-gcc-prs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 24439 invoked by alias); 7 Dec 2002 16:16:01 -0000
Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-prs/>
List-Post: <mailto:gcc-prs@gcc.gnu.org>
List-Help: <mailto:gcc-prs-help@gcc.gnu.org>
Sender: gcc-prs-owner@gcc.gnu.org
Received: (qmail 24402 invoked by uid 71); 7 Dec 2002 16:16:00 -0000
Resent-Date: 7 Dec 2002 16:16:00 -0000
Resent-Message-ID: <20021207161600.24401.qmail@sources.redhat.com>
Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer)
Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org
Resent-Reply-To: gcc-gnats@gcc.gnu.org, a-hw@mail.ru
Received: (qmail 23792 invoked by uid 61); 7 Dec 2002 16:09:30 -0000
Message-Id: <20021207160930.23791.qmail@sources.redhat.com>
Date: Sat, 07 Dec 2002 08:16:00 -0000
From: a-hw@mail.ru
Reply-To: a-hw@mail.ru
To: gcc-gnats@gcc.gnu.org
X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31)
Subject: c++/8860: illegal constructor causes internal compiler error
X-SW-Source: 2002-12/txt/msg00438.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         8860
>Category:       c++
>Synopsis:       illegal constructor causes internal compiler error
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 07 08:16:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     a-hw@mail.ru
>Release:        gcc (GCC) 3.2 (mingw special 20020817-1)
>Organization:
>Environment:
Win2K, MingGW 2.0.0 prebuilt binaries
>Description:
This code causes g++ to feel segmentation fault. I've replaced initializer for base class Smoother(size) with Smoother_Lookup(size):

template<typename Function>
class Smoother_Lookup : public Smoother {
public:
	Smoother_Lookup(int size) : Smoother_Lookup(size), lookup(size) {
		std::generate_n(lookup.begin(), size, Function(size));
	}
	int smooth(int r) { return lookup[r]; }
protected:
	std::vector<int> lookup;
};
>How-To-Repeat:
Try to compile test.cpp:

make test.o
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="test.cpp"
Content-Disposition: inline; filename="test.cpp"

#include <vector>

class Smoother {
public:
	Smoother(int size) : _size(size) { }
	virtual ~Smoother() = 0;
	virtual int smooth(int r) = 0;
protected:
	int _size;
};

template<typename Function>
class Smoother_Lookup : public Smoother {
public:
	Smoother_Lookup(int size) : Smoother_Lookup(size), lookup(size) {
		std::generate_n(lookup.begin(), size, Function(size));
	}
	int smooth(int r) { return lookup[r]; }
protected:
	std::vector<int> lookup;
};

struct Test {
	int operator()() { return 0; }
};

int
f() {
	Smoother_Lookup<Test> sl(1);
}