std::move- How to warn programmer not to use *moved from* object

Question

Suppose there is a function like this:

int * func()
{
  std::unique_ptr<int> ptr(new int(3));
  //Few more lines of code

  //then one function added where programmer writes like some thing

  SOME_OTHER_FUNC(std::move(ptr));

  return ptr.get();
}



void SOME_OTHER_FUNC(std::unique_ptr<int> arg_ptr)
{
}

Is there a way to warn programmers to avoid such mistakes with std::move? This is not about unique_ptr only but for other objects too.

Is there any mechanism to generate a warning when we used a moved-from object inappropriately?

Answer 1

std::move is the warning. If your programmers don't understand this, you have to educate them better. If the function is so long that the programmer can reasonably overlook the move, you need to refactor your function to make it shorter.