From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: zsh-workers@zsh.org
Subject: Re: [BUG] functions can't create global readonly variables
Date: Sun, 3 Jan 2016 19:00:31 +0000 [thread overview]
Message-ID: <20160103190031.24249cf5@ntlworld.com> (raw)
In-Reply-To: <160102123639.ZM16270@torch.brasslantern.com>
By the way it seems that, in bash at least, "readonly" breaks
encapsulation:
$ readonly foo=empty
$ fn() { local foo=bar; echo $foo; }
$ fn
bash: local: foo: readonly variable
empty
The only use I can see of this is for exported variables, where you
might want to ensure a specific value was always exported to an external
programme.
pws
next prev parent reply other threads:[~2016-01-03 19:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-02 3:27 Martijn Dekker
2016-01-02 4:27 ` Bart Schaefer
2016-01-02 18:18 ` Peter Stephenson
2016-01-02 20:36 ` Bart Schaefer
2016-01-03 19:00 ` Peter Stephenson [this message]
2016-01-03 19:21 ` Bart Schaefer
2016-01-02 19:39 ` Martijn Dekker
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