Use of cl tools

Use of cl tools

[Heime]

I need some explanation about the `cl` routines.  For instance, since 
Emacs 27.1, the functions `second` and `third` are obsolete, and `cl-second`  and `cl-third` should be used instead.

Yet at times I get that `cl` routines are obsolete as well.

Re: Use of cl tools

[Emanuel Berg]

Heime wrote:

> I need some explanation about the `cl` routines.
> For instance, since Emacs 27.1, the functions `second` and
> `third` are obsolete, and `cl-second` and `cl-third` should
> be used instead.

Use (require 'cl-lib) and then byte compile, it will tell you
there is no "second" for example if you use it.

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