Question

If I have an C++ object created in the main thread, and then start another thread, and from that thread I call a public member function of the object I created, what happens?

Is it different if the public function has parameters or if it manipulates private object members?

Does it behave differently on windows, linux or mac os?

What happens if the object is created on the stack?

Answer 1

There are two points that matter:

• first, as usual, you need to esnure that the lifetime of the instance exceeds the duration of its usage.
• second, access to variables across multiples threads need be synchronized to prevent race conditions.

That’s all folks.