[old post...bumping] why not delete(map) with the obvious meaning
On Mon, Aug 13, 2018 at 7:43 AM Peter Edge <peter.e...@gmail.com> wrote: > Yes, actually saw that a bit after I sent this email. Thanks for the link > though, appreciate it :-) > > On Mon, Aug 13, 2018 at 11:08 AM roger peppe <rogpe...@gmail.com> wrote: > >> I believe this optimisation has been implemented now. >> Have you tried using Go 1.11 beta (or Go tip) ? >> See https://tip.golang.org/doc/go1.11#performance-compiler >> >> >> On 12 August 2018 at 11:07, Peter Edge <peter.e...@gmail.com> wrote: >> > With slices, you can do >> > >> > slice = slice[:0] >> > >> > to remove the values from the slice, but keep the backing slice with the >> > same capacity (although the elements aren't marked for GC I believe, if >> > that's a concern). With maps, is there a similar pattern? I've tried: >> > >> > for key := range m { >> > delete(m, key) >> > } >> > >> > But this doesn't seem to work, I still see allocations (and it causes a >> > significant performance hit, which makes sense). >> > >> > Even something similar to https://golang.org/cl/137880043 if we had to >> clear >> > the actual values would be great. >> > >> > -- >> > 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. >> > -- > 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. > -- *Michael T. jonesmichael.jo...@gmail.com <michael.jo...@gmail.com>* -- 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.
