RE: Toggle line length?

[Drew Adams]

> >> How can I make the line-length of the complete buffer to be 100
> >> please?
> >
> > Sorry, I don't know what you mean.  What is "the line length of
> > the complete buffer"?
> 
> I mean that the same line-length of 100 is seen throughout the whole
> buffer. Whilst other open buffers remain at 74.

`fill-column' affects the whole buffer.

I thought you wanted to change the _default_ value of `fill-column'
each time you toggle between 100 and 74, because you mentioned
`setq-default'.

But you can also use just `setq' in that code, to toggle the value
only for the current buffer.