My application code was handled with shared_pointers. here boost::rethrow_exception is throwing exception object (which is created in stack..) but shared pointers need objects which are created on heap SO for that , I am converting object from stack to heap by copying it.(ie. classname *c1 = new classname(stack_object)). I have typecasted all std::exceptions I have two queries 1. I need some class whose 2 childs are std::exception and boost::exception so that I can type cast based on if checks.. 2. The exception classes which are in boost::exception and not in std::exception Please help me to clarify above 2 queries. On Sun, 17 Oct 2021 at 19:44, Vinnie Falco wrote:

On Sun, Oct 17, 2021 at 6:47 AM rajesh daggumati via Boost wrote:

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I don't know exactly what is going on here, but I am having trouble seeing the necessity. Maybe you could explain exactly what you are trying to do, because this business of doing all these casts is not something that I have seen before. Is it possible that this function could be helpful to you?

https://en.cppreference.com/w/cpp/error/make_exception_ptr

Regards

try { BOOST_THROW_EXCEPTION(std::invalid_argument("Blah")); } catch (...) { boost::exception_ptr exception = boost::current_exception(); try { boost::rethrow_exception(exception); } catch() //exception is from std::invalid_argument do i need to give boost::excepion &e or std::exception &e in catch block My application code is having boost::exception and std::exception. I need a datatype to store both std::exception and boost::exception(other than boost::exception_ptr as everytime I need to rethrow and catch it and need to do everythng inside cathc block.. its not possible always) On Sun, 17 Oct 2021 at 21:40, rajesh daggumati < rajeshdaggumati9999@gmail.com> wrote:

My application code was handled with shared_pointers. here boost::rethrow_exception is throwing exception object (which is created in stack..) but shared pointers need objects which are created on heap SO for that , I am converting object from stack to heap by copying it.(ie. classname *c1 = new classname(stack_object)). I have typecasted all std::exceptions I have two queries 1. I need some class whose 2 childs are std::exception and boost::exception so that I can type cast based on if checks.. 2. The exception classes which are in boost::exception and not in std::exception

Please help me to clarify above 2 queries.

On Sun, 17 Oct 2021 at 19:44, Vinnie Falco wrote:

...

On Sun, Oct 17, 2021 at 6:47 AM rajesh daggumati via Boost wrote:

...

...

I don't know exactly what is going on here, but I am having trouble seeing the necessity. Maybe you could explain exactly what you are trying to do, because this business of doing all these casts is not something that I have seen before. Is it possible that this function could be helpful to you?

https://en.cppreference.com/w/cpp/error/make_exception_ptr

Regards

On Mon, Oct 18, 2021 at 6:01 AM rajesh daggumati via Boost < boost@lists.boost.org> wrote:

try { BOOST_THROW_EXCEPTION(std::invalid_argument("Blah")); } catch (...) { boost::exception_ptr exception = boost::current_exception(); try { boost::rethrow_exception(exception); } catch() //exception is from std::invalid_argument do i need to give boost::excepion &e or std::exception &e in catch block

My application code is having boost::exception and std::exception. I need a datatype to store both std::exception and boost::exception(other than boost::exception_ptr as everytime I need to rethrow and catch it and need to do everythng inside cathc block.. its not possible always)

If you can't handle the exception completely, you can rethrow the original exception like this: try { BOOST_THROW_EXCEPTION(std::invalid_argument("Blah")); } catch (...) { boost::exception_ptr exception = boost::current_exception(); try { boost::rethrow_exception(exception); } catch( std::exception & e ) { ... // partially handle std::exception throw; // rethrow original object } catch( boost::exception & e ) { ... // partially handle boost::exception throw; // rethrow original object } }