[Bug c++/97720] Sometimes std::current_exception does not work properly in the terminate handler

[m101010a at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97720

--- Comment #3 from m101010a at gmail dot com ---
After looking into this more, I have confirmed that this is definitely the
cause of bug 97339, and found a simpler reproduction in bug 55918 comment #4:

#include <iostream>
class Foo
{
public:
    Foo() { std::cout << "Foo::Foo()\n"; }
    ~Foo() { std::cout << "Foo::~Foo()\n"; }
};

void bad_guy() noexcept {
  try {
    Foo foo;
    throw 0;
  } catch (float) {
    // Don't catch int.
  }
}

void level1() {
  bad_guy();
  throw "dead code";
}

int main() {
  try {
    level1();
  } catch (int) {
  }
}