Hello Bill!

Replying to a message of Bill Birrell to Darin Mcbride:

 BB> Hi Darin,

 BB>     while (*s) putc(*s++, stdout);

 BB>     Pre-increment would get this wrong. Post-increment does it right.
 BB> Is that not a merit?

You've also moved the increment from the while() (where we've had it all
along) to a new location.  Some people call this "thinking outside the
box".  However, we were intending to compare generic for() and while()
loops, showing how the obvious solutions weren't always so obvious.  You're
simply proving what we've said all along: don't muck with loops without
really trying.

I still favour for() loops for this type of thing.  Everything becomes way
more obvious, then.

for (s = xyz; *s != '\0'; ++s)
  putc(*s, stdout);

No ambiguities here.  Nothing to miss (depending on how much of a hurry I'm
in, or how big your while loop is, I might miss the fact that s is being
incremented in it...).

Darin

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