Destructor being called twice when being explicitly invoked

Question

I was experimenting with destructors in C++ with this piece of code:

#include 

struct temp
{
    ~temp() { std::cout << \"Hello!\" <         


        

Answer 1

You shouldn't actually call the deconstructor. It is called for you by the runtime support. Hence your calling it once and the runtime support is calling it the second time.

Here is some food for thought on destructors:

http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp?topic=%2Fcom.ibm.xlcpp8a.doc%2Flanguage%2Fref%2Fcplr380.htm

You can explicitly call deconstructors, however it's not recommended, normally they are implicitly called.