Variable: most-negative-fixnum
most-negative-fixnum is a variable defined in data.c.
Value
-2305843009213693952
Documentation
The least integer that is represented efficiently.
This variable cannot be set; trying to do so will signal an error.
Probably introduced at or before Emacs version 22.1.
Source Code
// Defined in /usr/src/emacs/src/data.c
DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum,
doc: /* The least integer that is represented efficiently.
This variable cannot be set; trying to do so will signal an error. */);