Hi David,
On Mon, Sep 19, 2005 at 12:06:46AM +0200, David Weinehall wrote:
> Please consider implementing full SuSv3 support for arithmetic expansion.
>
> http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_04
>
> ``If the shell variable x contains a value that forms a valid integer
> constant, then the arithmetic expansions "$((x))" and "$(($x))" shall
> return the same value.''
hmm, can you give an example where this actually is used?
> Also:
>
> ``All changes to variables in an arithmetic expression shall be in effect
> after the arithmetic expansion, as in the parameter expansion
> "${x=value}".''
AIUI, looks like dash already does this. Can you show where exactly you
want dash to behave differently?
$ dash -c 'unset x; echo $((${x=14})); echo ${x=41}'
14
14
$
Thanks, Gerrit.
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