Variable: regexp-search-ring-max
regexp-search-ring-max is a customizable variable defined in
isearch.el.gz.
Value
16
Documentation
Maximum length of regexp search ring before oldest elements are thrown away.
Source Code
;; Defined in /usr/src/emacs/lisp/isearch.el.gz
(defcustom regexp-search-ring-max 16
"Maximum length of regexp search ring before oldest elements are thrown away."
:type 'integer)