Re: Inconsistent arithmetic evaluation of parameters

[Dennis Williamson]

On Tue, Sep 1, 2015 at 4:24 PM, Andreas Schwab <schwab@linux-m68k.org> wrote:

Dennis Williamson <dennistwilliamson@gmail.com> writes:

> $ echo $((foo))  # expansion succeeds, indirection fails
> dash: 4: Illegal number: bar

The indirection didn't fail, it just didn't produce a number, so the
_expression_ is malformed.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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I disagree. The _expansion_ produced "bar" which is an "Illegal number" because the indirection (turning "bar" into 5) didn't succeed. In Bash, the indirection would have succeeded and the output would have been 5.

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