On Tuesday, February 19, 2019 at 7:04:22 PM UTC+1, Harald Weidner wrote:
>
> Hello, 
>
> > I was trying to get a list of undefined and implementation defined 
> > behaviors of the Go language from the specification, but it was not 
> easy. 
> > I tried to search for "undefined behavior" and "implementation defined 
> > behavior" without success. 
> [...] 
> > Is this list complete? 
>
> The language spec also contains once "unspecified", twice 
> "implementation-defined" and three times 
> "implementation-specific". 
>
>
Right, thanks.
There are also three "implementation-dependent".

The exact order in which goroutines are executed is also undefined, see 
> "method 3" of this funny blog article: 
>
> https://blog.merovius.de/2018/01/15/generating_entropy_without_imports_in_go.html
>  
>
> I would also consider the order in which init() functions of the same 
> package are executed undefined. The spec says they are executed "in the 
> order they appear in the source, possibly in multiple files, as presented 
> to the compiler". However, I believe a command like "go run *.go" can 
> yield different orders, according to the shell, shell settings, or 
> filesystem charset/collation settings. 
>

But this has nothing to do with Go.


Manlio Perillo 

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