Using backward-char non-interactively

[Marcin Borkowski]

Hi,

is it ok to use backward-char in elisp programs assuming that I did
check that I'm not at beginning of buffer?  Or is it better to use
(goto-char (1- point)) or something like that?  Or maybe it doesn't
matter?  ("Better" may be in terms of style, speed, or side effects,
like cluttering the *Messages* buffer.)

TIA,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Adam Mickiewicz University