Re: wait_reading_process_ouput hangs in certain cases (w/ patches)

[Paul Eggert]

Eli Zaretskii wrote:
> > > +          if (wait_proc
> > > +              && wait_proc->infd_num_bytes_read != 
> > > initial_wait_proc_num_bytes_read)
> > > +            got_some_output = 1;
> > Similarly for the other change that assigns to got_some_output.
> You can read up-thread why I'm firmly against doing that.

It doesn't explain why you're so firm about it since the commentary clearly 
states that 1 is OK, but at any rate one could use this instead:

  if (wait_proc)
    {
      unsigned int diff = (wait_proc->infd_num_bytes_read
                           - initial_wait_proc_num_bytes_read);
      if (diff != 0)
        got_some_output = diff;
    }

which is still a bit simpler than what was proposed. Anyway there's no need to 
refer to ISO/IEC 9899:1999 chapter and verse here, any more than there's a need 
to refer to it in the countless other places that we rely on it.