proper way to determine emacs version in elisp programing?

proper way to determine emacs version in elisp programing?

[Xah Lee]

what's the proper way to determine emacs version?

i use this code:

(if (string= (substring-no-properties emacs-version 0 2) "23" )
; is 23
; not 23
)

is there more robust way?

thanks.

  Xah
∑ http://xahlee.org/

☄

Re: proper way to determine emacs version in elisp programing?

[Teemu Likonen]

On 2009-08-13 19:52 (-0700), Xah Lee wrote:
> what's the proper way to determine emacs version?

Variables emacs-major-version and emacs-minor-version. They contain an
integer.

But if you need to check if some feature exists in the system you'd
better check precisely that. For example, check the existence of some
function with (fboundp ...).

Re: proper way to determine emacs version in elisp programing?

[Xah Lee]

On Aug 13, 10:30 pm, Teemu Likonen <tliko...@iki.fi> wrote:
> On 2009-08-13 19:52 (-0700), Xah Lee wrote:
>
> > what's the proper way to determine emacs version?
>
> Variables emacs-major-version and emacs-minor-version. They contain an
> integer.
>
> But if you need to check if some feature exists in the system you'd
> better check precisely that. For example, check the existence of some
> function with (fboundp ...).

Thanks. Good points.

 Xah