to the system log.
.SS "Other data types"
The
+.BR hash (3)
+module provides the basics for an extending hashtable implementation.
+Many different hashtable-based data structures can be constructed with
+little effort.
+.PP
+The
.BR sym (3)
-module implements a rather good extending hash table. Keys and values can
-be arbitrary data.
+module implements a rather good general-purpose extending hash table.
+Keys and values can be arbitrary data. It is implemented using
+.BR hash (3).
.PP
The
.B dynarray
.BR env (3),
.BR exc (3),
.BR fdflags (3),
+.BR hash (3),
.BR lbuf (3),
.BR lock (3),
.BR mdwopt (3),