(Garbage Collection): Document memory-full.

diff --git a/lispref/internals.texi b/lispref/internals.texi
index 6a2e22a1483ebcd75a3934bcdbc2f2cd2f1ca2f9..8c367f63ebd15a0ca8a2e15bd49f5669ad696891 100644 (file)
--- a/lispref/internals.texi
+++ b/lispref/internals.texi
@@ -406,6 +406,11 @@ You can use this to get a general idea of how your actions affect the
 memory usage.
 @end defun
 
+@defvar memory-full
+This variable is @code{t} if Emacs is close to out of memory for Lisp
+objects, and @code{nil} otherwise.
+@end defvar
+
 @defun memory-use-counts
 This returns a list of numbers that count the number of objects
 created in this Emacs session.  Each of these counters increments for