On Friday, June 30, 2017 at 9:28:50 PM UTC-6, Manohar Reddy wrote: > > `iota` is golnag's enum. I've seen this code in Wikipedia. But I did not > understand it. Can someone please explain this code? >
In the first line of the const block, iota is 0, and this is assigned to "_" (i.e., discarded). In the second line of the const block, iota is 1, so KB (of type ByteSize) is defined as 1 << (10 * 1), which is 1024. The third line of the const block inherits the previous line's pattern so it's effectively KB ByteSize = 1 << (10 * iota). Because iota is now 2, MB is defined as 1 << (10 * 2), which is 1048576. Likewise, in the fourth line of the const block, iota is 3 so GB is defined as 1 << (10 * 3), which is 1073741824. — Scott -- 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.
