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Re: Bug/regression: tt(RANDOM) seed not updating when $RANDOM is used in a pipe

X-seq: zsh-users 29094
From: Ray Andrews <rayandrews@xxxxxxxxxxx>
To: zsh-users@xxxxxxx
Subject: Re: Bug/regression: tt(RANDOM) seed not updating when $RANDOM is used in a pipe
Date: Thu, 29 Jun 2023 07:41:18 -0700
Archived-at: <https://zsh.org/users/29094>
In-reply-to: <CAH+w=7YEgHWBroyBYOg5t7QcLpxsCmUU2f_04XPt2+sy+ayj2g@mail.gmail.com>
List-id: <zsh-users.zsh.org>
References: <25FF68CF-F93D-4745-84D1-A97A5ECCA348@gmail.com> <36f09056-0f1a-1b8a-dcf8-0ab222857ea2@gmx.com> <CAH+w=7YEgHWBroyBYOg5t7QcLpxsCmUU2f_04XPt2+sy+ayj2g@mail.gmail.com>


On 2023-06-28 22:42, Bart Schaefer wrote:

The LHS of the pipe should be a subshell, so the behavior is intentional.
This was, however, an unanticipated side-effect of the referenced
commit.

So it feels like a bug but is theoretically correct even tho it was'fixed' by accident? I'd speculate that nine out of ten people wouldprefer the 'bug' since it's the intuitive behavior. If one wanted topreserve a value, would one not do that explicitly? Just my two cents.

References:
- Bug/regression: tt(RANDOM) seed not updating when $RANDOM is used in a pipe
  - From: Jon Oster
- Re: Bug/regression: tt(RANDOM) seed not updating when $RANDOM is used in a pipe
  - From: Eric Cook
- Re: Bug/regression: tt(RANDOM) seed not updating when $RANDOM is used in a pipe
  - From: Bart Schaefer

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