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V+=1 doesn't work if V is a reference to an integer array element


From: Oğuz
Subject: V+=1 doesn't work if V is a reference to an integer array element
Date: Wed, 13 Jan 2021 19:00:42 +0200

See:

    $ declare -ai a=1
    $ declare -n b=a[0]
    $ b+=1
    bash: a[0]1: syntax error in expression (error token is "1")

Reproducible on 5.1.4 too


-- 
Oğuz


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