PVS-Studio warning V600 for ITK

void MultiThreader::MultipleMethodExecute()
{
  ....
  HANDLE process_id[ITK_MAX_THREADS];
  ....
  process_id[thread_loop] = (void *) _beginthreadex(0, 0, ....);

  if ( process_id == 0 )
  {
    itkExceptionMacro("Error in thread creation !!!");
  }
  ....
}

Most likely this is what should be written here: if ( process_id[thread_loop] == 0 )

This suspicious code was found in ITK project by PVS-Studio static code analyzer.
Warning message is:
V600 Consider inspecting the condition. The 'process_id' pointer is always not equal to NULL. itkmultithreaderwinthreads.cxx 90

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