std::bad_exception

`<exception>`
`class bad_exception;`

std::bad_exception , C++ :

std::exception_ptr , std::current_exception, , `std::bad_exception`.	( C++11)
std::unexpected , - , `std::bad_exception`, `std::bad_exception` .	( C++17)

[std-bad_exception-inheritance.svg]

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()	`bad_exception` (public -)
operator=	(public -)
what [virtual]	(virtual public -)

std::exception

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() [virtual]	(virtual public of `std::exception` -) []
what [virtual]	(virtual public of `std::exception` -) []

C++14 ( ).

#include <iostream>
#include <exception>
#include <stdexcept>

void my_unexp()
{ 
    throw;
}

//      C++11
void test() throw(std::bad_exception)
{
    throw std::runtime_error("");
}

int main()
{
    //   C++11,   C++17
    std::set_unexpected(my_unexp);
    try {
         test();
    } catch(const std::bad_exception& e)
    {
        std::cerr << " " << e.what() << '\n';
    }
}

:

 std::bad_exception







(C++20)

(C++20)
(C++11)





(C++20)


/

(C++11)
(C++11)
(C++11)
(C++17)

cppreference.com

std::bad_exception

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std::exception

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