Bash-4.3 distribution sources and documentation

tests/nameref8.sub

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+function f1
+{
+	typeset -n v=$1
+
+	v=inside
+}
+
+v=global
+f1 v
+echo $v
+
+unset v
+unset -f f1
+
+function foo
+{
+	typeset x=one
+
+	typeset -n y=$1
+	y=two
+	echo inside: $x
+}
+
+foo x
+echo outside: $x
+
+function foo2
+{
+	typeset -n x=$1
+
+	x=foo
+}
+
+foo2 x
+echo $x
+
+unset -f foo
+function foo { typeset -n v=$1; v=local; }
+
+v=global
+foo v
+echo $v
+
+unset v
+
+# invalid self reference at global scope
+typeset -n v=v
+
+# can we catch a circular self-reference?
+typeset -n v=w
+typeset -n w=x
+typeset -n x=v
+
+x=4
+echo x = $x
+
+unset -n v w x