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Re: Is length() optimized away in for-loop?
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From: |
david kerns |
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Subject: |
Re: Is length() optimized away in for-loop? |
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Date: |
Sun, 26 Apr 2020 06:18:59 -0700 |
consider:
gawk 'BEGIN{a[1]=1;for(i=1;i<=length(a);++i){a[i+1]=a[i]+1;print a[i]}}'
On Sun, Apr 26, 2020 at 5:31 AM Peng Yu <address@hidden> wrote:
> Hi,
>
> In the following awk code, is `length(a)` called multiple times? Or
> gawk is smart enough to know to just call `length(a)` once? Thanks.
>
> for(i=1;i<=length(a);++i) print a[i]
>
> --
> Regards,
> Peng
>
>