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exceptions in shared libraries

From: Dirk Habighorst
Subject: exceptions in shared libraries
Date: Tue, 29 Oct 2002 15:20:45 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020826

is there a general problem with c++, exceptions and shared libraries created with libtool? Properties and PropertiesException are classes from a shared library created with libtool (1.4.3).

#include "properties.h"
#include <iostream>



Properties::Properties(const Properties & defaults){
  _properties = defaults._properties;

std::string Properties::getProperty(std::string key) throw(PropertiesException){
  std::map<std::string, std::string>::iterator i = _properties.find(key);
    return i->second;
throw PropertiesException("Error: The key " + key + " does not exist in the properties.");

Whenever I use getProperty and it should throw and the exception the program aborts.
Here is the backtrace:
#0  0x4081d581 in kill () from /lib/
#1  0x4081d394 in raise () from /lib/
#2  0x4081e8d1 in abort () from /lib/
#3  0x407a2cf4 in __cxa_call_unexpected () from /usr/lib/
#4  0x407a2d39 in std::terminate() () from /usr/lib/
#5  0x407a2e8d in __cxa_throw () from /usr/lib/
#6 0x4005361f in Properties::getProperty(std::string) (this=0xbffff364, key=Cannot access memory at address 0x88f7a5c
) at properties.cpp:37
#7  0x080496e4 in main (argc=1, argv=0xbffff434) at main.cpp:38

If I use the static library or create a shared library with g++ everything works as it should.

thanks dirk

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