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From: bright@dataioDataio.UUCP (Walter Bright)
Newsgroups: net.lang
Subject: Re: and if you put this in your language ...
Message-ID: <928@dataioDataio.UUCP>
Date: Tue, 11-Mar-86 12:48:19 EST
Article-I.D.: dataioDa.928
Posted: Tue Mar 11 12:48:19 1986
Date-Received: Sat, 15-Mar-86 22:50:40 EST
Reply-To: bright@dataio.UUCP (Walter Bright
Organization: Data I/O Corp., Redmond WA
Lines: 28

In article <367@tikal.UUCP> bobc@tikal.UUCP (Bob Campbell) writes:
>I must beg to differ your flow-chart can be easily converted to a less
>complex diagram (uses only two of the three basic units) as follows.
>(Yours is on the Left :-)
>
>         |                            |
>       A:/\                         A:/\
>     +---\/---+                   +---\/---+
>    +-+       |                  +-+       |
>    |X|       |                  |X|       |
>    +-+       |                  +-+       |
>     |        |                   |        |
>   B:/\       |                 B:/\       |
>  +--\/-------+                +--\/--+    |
> +-+         +-+              +-+    +-+  +-+
> |Y|         |Z|              |Y|    |Z|  |Z|
> +-+         +-+              +-+    +-+  +-+
>  +-----+-----+                +--+---+    +
>        |                         |        |
>	|                         +---+----+
>				      |
>
>Oh by the was don't bother to tell me that Z appears twice, I know that
>it does, and in most cases the amount of code space wasted is not worth
>saving (and in those cases where the code space is needed use a GOTO).

A good compiler will transform the case on the right to the case on the
left, the technique is called 'tail-merging'.