From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-156086-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 7928 invoked by alias); 29 Aug 2005 20:23:49 -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 7867 invoked by uid 48); 29 Aug 2005 20:23:46 -0000
Date: Mon, 29 Aug 2005 20:27:00 -0000
Message-ID: <20050829202346.7866.qmail@sourceware.org>
From: "mmarcus at emarcus dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
In-Reply-To: <20050829194742.23628.mmarcus@emarcus.org>
References: <20050829194742.23628.mmarcus@emarcus.org>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug c++/23628] Typeinfo comparison code easily breaks shared libs
X-Bugzilla-Reason: CC
X-SW-Source: 2005-08/txt/msg03365.txt.bz2
List-Id: <gcc-bugs.sourceware.org>


------- Additional Comments From mmarcus at emarcus dot org  2005-08-29 20:23 -------
Actually, I'll just paste the darwin test case here. On this platform, libstdc++
is a sharedlib. The following code:
###

#include <vector>
#include <iostream>
#include <stdexcept>



int main (int argc, char * const argv[]) {
	std::vector<int> v;
	try {
		v.at(1);
	}
	catch(const std::out_of_range& e) {
		std::cout << "Correct behavior: out of range caught, what==: " <<
e.what() << "\n";
		throw;
	}
	catch(...) {
		std::cout << "Oops, apparent problem with type identity across a DLL
boundary\n";
		throw;
	}	
	return 0;
}
###

Output is the "Oops case" when built without explictly setting
-fvisibility=default or -fvisibility-inlines-hidden for the "hosting" exectuable.



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
     Ever Confirmed|                            |1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23628