Re: Flex/Bison: which version to use?

[Hans Aberg]

At 11:28 +0000 2005/06/13, Frans Englich wrote:
> For my project, written in C++, I simply downloaded the latest versions(at
> least at that time); I use Bison 2.0, and Flex 2.5.31.

Those are the latest official versions. For Bison, there is a test 
version 2.0a, you may want to try out, to make sure the next release 
works for you:
  ftp://alpha.gnu.org/gnu/bison/bison-2.0a.tar.gz

> Does it matter what version one uses? What is recommended? For what scenarios
> does version matter(portability, programming language, functionality, etc)?
> (if at all)

Typically, only the last official version is supported. If you have 
problems with an earlier version, people helping will not remember 
those versions, and don't expect there will be bug fix; more likely, 
it has already been reported and fixed in a later version.

If one needs bug fixes, sometimes one may need to pick down the 
latest alpha or from the CVS. I did that with Flex on Mac OS 10.3.9.

> Another question; I noticed that I had "flex++" installed, as well as that
> "bison++" exists, after a quick googling. Are those "++" versions established
> software which people use? What are their advantages? When should I need to
> think about whether I should use the "++" programs?

Those are independent programs, supposedly old. Bison and Flex do not 
have anything with them to do, what I know.
--
  Hans Aberg