How can I detect whether an exception is active during destructor?

Std::uncaught_exception tells you whether the stack is being unwound due to an exception being thrown, which is what you asked.

There is a std::uncaught_exception() function. However, about the only useful thing you can do to attempt to gain access to the exception object is rethrow it and try to catch it. You should never throw exceptions from any destructor, in general.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.