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Mon, 10 Oct 2022 18:14:54 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Bart Schaefer Date: Mon, 10 Oct 2022 18:14:43 -0700 Message-ID: Subject: Re: use of rand() in zsh To: Clinton Bunch Cc: "zsh-workers@zsh.org" Content-Type: text/plain; charset="UTF-8" X-Seq: 50772 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: On Mon, Oct 10, 2022 at 4:38 PM Clinton Bunch wrote: > > Is there a reason that zsh goes out of the way (srand_deterministic) to > use the least random "random" function on modern Unix? The values of RANDOM form an intentionally-repeatable pseudo-random sequence; subshells that reference RANDOM will result in identical pseudo-random values unless the value of RANDOM is referenced or seeded in the parent shell in between subshell invocations. This is e.g. so you aren't surprised by referencing $RANDOM inside $(...) and getting a different result.