On 2/17/11 10:25 PM, Clark J. Wang wrote:
> On Fri, Feb 18, 2011 at 8:45 AM, Chet Ramey <[email protected]
> <mailto:[email protected]>> wrote:
>
>
> The -g option exists solely to create variables at the global scope. The
> intent is that functions be able to declare global variables with
> attributes if they desire. It doesn't change the scoping rules or
> variable resolution behavior.
>
>
> A global var can always be declared out of a func (usually at the beginning
> of the script) so what's the main intention of introducing a new `-g' option?
As I said, so functions can declare global variables with attributes.
> And If we can declare/modify a global var in a func but we cannot read it
> from in the func I don't think the feature is very useful to people.
There are more things in heaven and earth than are dreamt of in your
philosophy. How about you and I want until the folks who requested
the feature weigh in on the subject.
(And keep in mind that you can read a global variable from a function just
fine as long as you don't interpose another local variable with the same
name from a different function.)
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU [email protected] http://cnswww.cns.cwru.edu/~chet/
