Question

I have the following code

#include <iostream>
#include <cstddef>
#include <string>
#include <memory>


class Object
{
public:
       Object()
       {
               std::cout << __PRETTY_FUNCTION__ << std::endl;
       }
       std::string x;

       void *operator new( size_t bytes )
       {
               std::cout << __PRETTY_FUNCTION__ << " : bytes = " << bytes << std::endl;
       }

       void operator delete( void * arg )
       {
               std::cout << __PRETTY_FUNCTION__ << std::endl;
       }
};



int main( int c, char *v[] )
{
       // std::auto_ptr< Object > pObject( new Object() );
       Object *o = new Object();
       delete o;
}

and it produces this output…

static void* Object::operator new(size_t) : bytes = 8

and then core dumps.

Given that I don’t get the output from the operator delete() method and that it core dumps. I’m assuming that my operator delete() method isn’t being invoked.

Can anyone shed any light as to why it isn’t being invoked?

Thank you for focusing on the core dump against my ALL CAPS RANTS because it actually turned out to be the problem.

EDIT–
Ok, Where do I start…. I’m incredibly sorry for ranting. We’ve all been there, under pressure to meet a deadline and something innocuous appears to be causing an issue and we’re convinced it’s one thing when in fact it’s another.
This has taught me a valuable lession… I need to start listening….
I fully appreciate all of help and advice given here.

Thx
Mark.

Answer 1

You’re crashing well before delete() is called, because you haven’t allocated any storage for std::string x; – if you comment out this instance variable then the code should compile (with warnings) and run OK.