On Sun, Oct 16, 2016 at 5:25 PM, Liam <networkimp...@gmail.com> wrote: > > On Sunday, October 16, 2016 at 5:13:36 PM UTC-7, Ian Lance Taylor wrote: >> >> On Sun, Oct 16, 2016 at 3:34 PM, Liam <networ...@gmail.com> wrote: >> > >> > On Sunday, October 16, 2016 at 2:56:42 PM UTC-7, Ian Lance Taylor wrote: >> > >> >> To argue that this should go into the standard library, look at some >> >> corpus of Go code and find out how often it occurs. If it occurs >> >> fairly often, you've got a good case. >> > >> > >> > Fairly often; i.e. as often as Replace or Trim*? In my experience it >> > passes >> > that test. >> >> This is something that can actually be measured. > > > By doing grep 'append.*append' ? And '\[:.*len\(.*\).*\+[0-9]+.*\]' ? > Neither of these will be accurate. > > Part of my point is that Insert operations are semantically obscured.
Understood. But my guess is that insertion operations are fairly rare--much less common than Replace or Trim. People obviously append to slices all the time, but I suspect that they tend to write their slice operations to not require inserting a single element in the middle of the slice, because insertion is by definition O(N) rather than O(1). I could certainly be wrong, but that guess leads me to suspect that adding a function for something that can easily be written in a single expression is overkill. Since I am only guessing, and since it seems to me that you are also guessing, I think we should measure rather than guess. Ian -- 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.
