Thanks ! Appreciate the help. :) On Saturday, 1 October 2016 22:16:10 UTC+5:30, Ian Lance Taylor wrote: > > On Sat, Oct 1, 2016 at 12:24 AM, <agniva.qu...@gmail.com <javascript:>> > wrote: > > > > I am using a variable to track the no. of bytes written to a file so > far. > > Now the fmt.Fprint command returns the bytes written as int. But I am > > thinking of storing the value as a uint64 just to give it some extra > space. > > Therefore, I have to do a bytesWritten += uint64(n) to add to the > variable. > > > > This code is in the hot path of my application. I was just wondering > what is > > the performance hit of the casting and whether there is any better way > to > > achieve this ? > > Converting from int to uint64 is very cheap. In fact, on many > processors, the performance cost is exactly zero. Don't worry about > it. > > Ian >
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