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@@ -44,6 +44,13 @@ These functions used to operate on numbers in the range of a C signed
long; however, this seems inappropriate, because Guile integers don't
overflow.
+** New function: make-guardian
+This is an implementation of guardians as described in
+R. Kent Dybvig, Carl Bruggeman, and David Eby (1993) "Guardians in a
+Generation-Based Garbage Collector" ACM SIGPLAN Conference on
+Programming Language Design and Implementation, June 1993
+ftp://ftp.cs.indiana.edu/pub/scheme-repository/doc/pubs/guardians.ps.gz
+
** New functions: delq1!, delv1!, delete1!
These procedures behave similar to delq! and friends but delete only
one object if at all.