Variable: save-place-file
save-place-file is a customizable variable defined in saveplace.el.gz.
Value
"~/.emacs.d/places"
Documentation
Name of the file that records save-place-alist value.
This variable was added, or its default value changed, in Emacs 24.4.
Probably introduced at or before Emacs version 28.1.
Source Code
;; Defined in /usr/src/emacs/lisp/saveplace.el.gz
(defcustom save-place-file (locate-user-emacs-file "places" ".emacs-places")
"Name of the file that records `save-place-alist' value."
:version "24.4" ; added locate-user-emacs-file
:type 'file)