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

[Greg Wooledge]

On Wed, Jan 13, 2021 at 07:00:42PM +0200, Oğuz wrote:
>     $ declare -n b=a[0]

I can't see any documentation that supports the idea that this should
be allowed in the first place.

              -n     Give  each  name  the nameref attribute, making it a name
                     reference to another variable.  That  other  variable  is
                     defined  by  the  value of name.  All references, assign‐
                     ments, and attribute modifications to name, except  those
                     using  or changing the -n attribute itself, are performed
                     on the variable referenced by name's value.

In at least three places there, it says that that "target" of the
name reference is a variable.  a[0] isn't a variable.