On Tue, Mar 19, 2024 at 9:36 AM Mohamad Rostami <mb.rostam...@gmail.com> wrote:
>
> I've seen in many places in go source code re-declaring a variable with the
> same name.
> e.g:
> for i < j {
> h := ...
> }
> Instead of
> var h int
> for i < j {
> h = ...
> }
>
> So I did a benchmark to check the differences. I didn't find any performance
> related differences, but in terms of Stack Memory in use, the second approach
> is better than the first one.
>
> Not sure if the way is in standard library is by intention or something that
> should be ignored.
The two versions are basically equivalent. How are you measuring
stack memory usage? If they are different, there may be something to
fix in the compiler.
Ian
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