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