Throwing exceptions across dynamic DLL boundaries on Linux

[mcasale]

Hello,

I am loading a DLL dynamically in which an exception of type E may be thrown from method M. In the try block in the main program, the type information for the exception appears to be lost. In other words, in the code

try{

M

} catch( E &e )

{

cout << "Caught an exception of type e" << endl;

}

catch(...)

{

cout << "Unknown exception" << endl;

}

M is in the dynamically loaded DLL with throws an exception of type E. But the catch block catch(E &e) is never entered: type info is lost. The catch(...) is entered. Is there any way around this?

Thanks very much,

Mac

[Otto_B_Intel]

Hi,

if you mean by dynamically loading a library you use dlopen then you have to use the flag RTLD_GLOBAL otherwise it will not load the exception information properly.

I hope this helps.

Otto