Thanks all for the resources! So just to confirm, that (ref) is the only way to hold "references" to objects (and not a "reference" to a new copy) in a slice, so that I can iterate over the original objects using the slice. Correct?
And In my tryref example, the issue is with the append and that it is making a copy of the original objects at a state when it had no references, is that right? It would be nice to see some documentation expanded out to more complex types. I understand the docs should be simple and easy to understand and it may not matter as all types are handled the same (copy-by-value), but in practice the difference can introduce bugs or confusion. To clarify, in most cases it won't matter when using a copy of an int, but could if the function needs to reference an exact object (in that case a pointer is needed). Related, is there a doc explaining what happens (the rules of copy-by-value method) when you pass an argument to a function in the various cases of a primitive and complex type? On Sunday, November 13, 2016 at 6:57:07 AM UTC-8, Rob 'Commander' Pike wrote: > > There's also https://blog.golang.org/slices > > On Sun, Nov 13, 2016 at 1:50 AM, Jan Mercl <0xj...@gmail.com <javascript:> > > wrote: > >> >> On Sun, Nov 13, 2016 at 10:45 AM <question....@gmail.com <javascript:>> >> wrote: >> >> > Also I understand that everything is pass-by-value, but what exactly is >> getting passed for tryref that retains the id but not the slice of pointers? >> >> The answer can be found in the article linked by Volker earlier in this >> thread. I can recommend reading it as well. >> -- >> >> -j >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
