From: "Lawrence Velázquez" <larryv@zsh.org>
To: zsh-users@zsh.org
Subject: Re: for loop 'bad math expression'
Date: Sun, 04 Feb 2024 15:56:57 -0500 [thread overview]
Message-ID: <0a8adf9c-003a-4c74-a33a-66e29439d53a@app.fastmail.com> (raw)
In-Reply-To: <52b86cf0-d60a-438b-a32f-656c769fb672@eastlink.ca>
On Sun, Feb 4, 2024, at 11:08 AM, Ray Andrews wrote:
> But in my previous post it would seem that 'abc' IS an integer because it increments like one, but even then typeset -p shows it as scalar.
No. It "increments like one" because you ran "abc=1; let abc+=3",
and the arguments to "let" are interpreted as arithmetic expressions.
If you'd run "abc=1; abc+=3" you would have gotten string concatenation.
> It starts as a string assigned to 'var' but it would seem it gets 'promoted' to an integer variable.
What? When you ran "abc=1" *you* created that variable. And it's
not "an integer variable"; it doesn't have the integer attribute.
--
vq
next prev parent reply other threads:[~2024-02-04 20:58 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-30 3:39 Ray Andrews
2024-01-30 3:46 ` Ray Andrews
2024-01-30 4:04 ` Bart Schaefer
2024-01-30 4:06 ` Bart Schaefer
2024-01-30 4:17 ` Ray Andrews
2024-01-30 13:44 ` Ray Andrews
2024-01-30 14:30 ` Lawrence Velázquez
2024-02-03 23:52 ` Bart Schaefer
2024-02-04 1:14 ` Ray Andrews
2024-02-04 2:05 ` Lawrence Velázquez
2024-02-04 4:20 ` Bart Schaefer
2024-02-04 16:08 ` Ray Andrews
2024-02-04 20:56 ` Lawrence Velázquez [this message]
2024-02-04 15:51 ` Ray Andrews
2024-02-04 20:48 ` Lawrence Velázquez
2024-02-04 21:09 ` Bart Schaefer
2024-02-04 21:23 ` Bart Schaefer
2024-02-05 2:10 ` Bart Schaefer
2024-02-05 2:43 ` Mikael Magnusson
2024-02-05 2:50 ` Bart Schaefer
2024-02-05 15:21 ` Ray Andrews
2024-02-05 15:48 ` Mark J. Reed
2024-02-04 14:43 ` Mark J. Reed
2024-02-04 16:37 ` Ray Andrews
2024-02-04 21:09 ` Lawrence Velázquez
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