Hello John,
 In a message dated 13 Apr 96 you wrote to Peter Collis :

 JG>        I use PCC and to keep the speed up, as much as practical (I use
 JG> an XT to do my programming), I avoid header files. 

You are truly a sick man.

 JG>        One thing in favour of having TRUE=0 is that on a no error
 JG> completion of a function you can simply "fall through" at
the end, i.e.
 JG>  no explicit RETURN.  I personally like using non-zero far FALSE as it
 JG> allows me to test for FALSE and then act acording to what value was
 JG> actually returned, much like DOS error levels.

The general idea of using zero for FALSE and non-zero for TRUE is that you
can do things like this:

  is_working=TRUE;

  if (is_working)
  {
    blah;
  }

Also if a function returns either TRUE or FALSE you can have it in a
conditional the same way, eg:

  if (ok_to_save())
  {
    save_it();
  }

When you know that the variable or function is boolean it makes the code
easier to read and understand.

For instance, my first example with your definitions:

  is_working=TRUE;

  if (is_working==TRUE)
  {
    blah;
  }

Isn't quite as easy to read for debugging purposes.

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Josh Marshall                        RIPNet  154:474/100.35
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