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Fri, 16 Apr 2021 14:26:07 -0400 (EDT) Received: by tarpaulin.shahaf.local2 (Postfix, from userid 1000) id 4FMPmD4ptCz2T2; Fri, 16 Apr 2021 18:26:04 +0000 (UTC) Date: Fri, 16 Apr 2021 18:26:04 +0000 From: Daniel Shahaf To: zsh-workers@zsh.org Subject: Re: zmathfunc: min, max, sum throw error if result equals 0 Message-ID: <20210416182604.GB15670@tarpaulin.shahaf.local2> References: <20210307171712.GA9936@tarpaulin.shahaf.local2> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Seq: 48602 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: Bart Schaefer wrote on Sun, Mar 07, 2021 at 18:25:00 -0800: > On Sun, Mar 7, 2021 at 1:57 PM Daniel Shahaf wrote: > > Bart Schaefer wrote on Sun, 07 Mar 2021 21:39 +00:00: > > > zsh_math_func_min() { > > > local result=$(( $1 )) > > > > Doesn't this still do multiple string-to-number conversions? > > I don't think so ... the $(( ... )) should turn $1 into a single > number assigned to result. What are you thinking about? When «$foo» appears inside «$((…))», it's expanded as a string that's then parsed as math. The result of «$((…))» is then assigned to the $result, which is eventually used as «(( result ))», where — because ${(t)result} is non-integer scalar — there will be another string-to-integer conversion. Sorry for the delay on this. Daniel