[OT] The Usual Arithmetic Confusions

Paulo Pinto pjmlp at progtools.org
Mon Jan 31 10:23:59 UTC 2022

On Monday, 31 January 2022 at 08:38:28 UTC, Ola Fosheim Grøstad 
> On Monday, 31 January 2022 at 07:33:00 UTC, Elronnd wrote:
>> I have no doubt it comes up _at all_.  What I am asking is 
>> that I do not believe it has an _appreciable_ effect on any 
>> real software.
> Not if you work around it, but ask yourself: is it a good idea 
> to design your language in such a way that the compiler is 
> unable to remove this:
> ```
> if (x < x + 1) { … }
> ```
> Probably not.

One such language would be Go[0], it doesn't seem to impact 
Docker, Kubernetes, gVisor, USB Armory, Android GPU debugger, 
containerd, TinyGo, as some of the proper systems programming 
where Go is used despite not being designed as such.

[0] - "A compiler may not optimize code under the assumption that 
overflow does not occur. For instance, it may not assume that x < 
x + 1 is always true.". Go Language Specification.

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