--- libev/ev.3	2016/02/18 04:48:05	1.105
+++ libev/ev.3	2016/11/16 17:39:52	1.106
@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "LIBEV 3"
-.TH LIBEV 3 "2016-02-18" "libev-4.22" "libev - high performance full featured event loop"
+.TH LIBEV 3 "2016-11-16" "libev-4.23" "libev - high performance full featured event loop"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -5414,6 +5414,10 @@
 assumes that the same (machine) code can be used to call any watcher
 callback: The watcher callbacks have different type signatures, but libev
 calls them using an \f(CW\*(C`ev_watcher *\*(C'\fR internally.
+.IP "null pointers and integer zero are represented by 0 bytes" 4
+.IX Item "null pointers and integer zero are represented by 0 bytes"
+Libev uses \f(CW\*(C`memset\*(C'\fR to initialise structs and arrays to \f(CW0\fR bytes, and
+relies on this setting pointers and integers to null.
 .IP "pointer accesses must be thread-atomic" 4
 .IX Item "pointer accesses must be thread-atomic"
 Accessing a pointer value must be atomic, it must both be readable and