Re: regarding boost::exception

From: rajesh daggumati (rajeshdaggumati9999_at_[hidden])
Date: 2021-10-18 12:26:55

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 Mon, 18 Oct 2021 at 16:48, rajesh daggumati <
rajeshdaggumati9999_at_[hidden]> 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)
>
> On Sun, 17 Oct 2021 at 21:40, rajesh daggumati <
> rajeshdaggumati9999_at_[hidden]> 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 <vinnie.falco_at_[hidden]>
>> wrote:
>>
>>> On Sun, Oct 17, 2021 at 6:47 AM rajesh daggumati via Boost
>>> <boost_at_[hidden]> 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
>>>
>>