Re: Exceptions failing in libstdc++

[red floyd]

The issue is a bad LD_LIBRARY_PATH.

I had installed MATLAB R14SP2, which comes with its own copy of 
libstdc++.so.5, and their installation instructions cause that to be 
selected over the stock libstdc++, and their library causes the error.

When I unset my LD_LIBRARY_PATH, and got the default paths, amazingly 
enough, it worked.

Time to go bug MATLAB (but I may not be under maintenance :( )

Here's my ld.so.conf:
/usr/kerberos/lib
/usr/X11R6/lib
/usr/lib/mysql
/opt/perl-Qt/lib
/usr/lib/qt-3.1/lib
/usr/local/lib
/usr/local/xerces-c-src_2_5_0/lib

Here's my LD_LIBRARY_PATH (/usr/local/matlab is the MATLAB install 
directory (broken up for clarity, and yes, there *is* a leading ':' on 
the first entry)

:/usr/local/matlab/sys/os/glnx86
:/usr/local/matlab/bin/glnx86
:/usr/local/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/native_threads
:/usr/local/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client
:/usr/local/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386
:/usr/local/xerces-c-src_2_5_0/lib


Code reproducing the problem attached:

//-- cut here
#include <iostream>
#include <string>

class X {
        const char *f_;
        int l_;
        std::string s_;
public:
        X(const char *f, int l, const std::string& s)
        : f_(f){ }
        virtual ~X() { }
};

void g()
{
        throw X(__FILE__,__LINE__,std::string("haha"));
}

void *f(void *p)
{
        try
        {
                g();
        }
        catch(X&)
        {
                std::cout << "caught X in f(" << p << ")" << std::endl;
        }
        return 0;
}

int main()
{
        f(0);

        return 0;
}