Re: GOTO in ADA

["Michael F. Yoder" <yoder@decada.zko.dec.com>]

Ray wrote:
> 
> I know that the use of GOTO statements are anathema to most diehard
> structured programmers, but can someone give an example of  a valid use
> of the GOTO in "real life" code?

If you are writing a dialog which asks many questions, and want to
re-ask one (e.g. because of an error), "goto Ask_Password;" is IMO
clearer than writing "loop... exit when Password_OK; end loop;" or
whatever.  This is particularly so in cases where a straightforward use
of loops would make them overlap, for example when the flow of control
looks like this:

      <ask Q1>
      ...
      <ask Q2>
      ...
      <if error, return to ask Q1>
      ...
      <if error, return to ask Q2>

-- 
Michael F. Yoder

Unscientific man is beset by a deplorable desire to have been right.
The scientist is distinguished by a desire to *be* right. -- W.V. Quine