Yes, it looked like a typo to me. Truncating the string to an even number of characters gives the same results as the original snippet: https://play.golang.org/p/avf6xqnpEn
It's also not difficult to pad the input, if that's the desired behavior: https://play.golang.org/p/Q6C9SBhQB5 (Padding without copying the whole string would be slightly more complex, but as Howard noted, Go style is generally to prefer simpler code.) On Monday, November 13, 2017 at 5:31:22 PM UTC-8, peterGo wrote: > > Bryan, > > Use the test case from the question: buffer := "83f982d600c1caca7a6". > > https://play.golang.org/p/1gN7Y4ajOH > > Peter > > On Monday, November 13, 2017 at 7:42:16 PM UTC-5, Bryan Mills wrote: >> >> In this case, the "code golf" solution seems clearer: >> https://play.golang.org/p/Jxkf2Vheml >> >> On Monday, November 13, 2017 at 3:57:57 PM UTC-8, peterGo wrote: >>> >>> Christian, >>> >>> Your specialized convertCharToInt32 function, which returns []uint32, is >>> slow in comparison to a more general HexToUint function. >>> >>> BenchmarkHexToUint32-8 20000000 88.9 ns/op 16 B/op 2 allocs/op >>> BenchmarkCharToInt32-8 3000000 438 ns/op 96 B/op 22 allocs/op >>> >>> Playground: https://play.golang.org/p/OeUDEV9Xpb >>> >>> Peter >>> >>> On Monday, November 13, 2017 at 1:51:21 AM UTC-5, Christian LeMoussel >>> wrote: >>>> >>>> I have a data stream of bytes and I'd like to get array of int32 (from >>>> four bytes). >>>> >>>> func convertCharToInt32(buffer string) []uint32 { >>>> const SIZEOF_INT32 = 4 >>>> >>>> var hh = make([]byte, 2) >>>> var cbuffer = make([]byte, len(buffer)/2) >>>> var hbuffer = make([]uint32, len(cbuffer)/SIZEOF_INT32) >>>> >>>> for i := 0; i < 28; i++ { >>>> hh[0] = buffer[i*2] >>>> hh[1] = buffer[i*2+1] >>>> if s, err := strconv.ParseUint(string(hh[:]), 16, 64); err == >>>> nil { >>>> cbuffer[i] = byte(s) >>>> } >>>> } >>>> >>>> for i := range hbuffer { >>>> hbuffer[i] = uint32(Endian.Uint32(cbuffer[i*SIZEOF_INT32 : (i+1 >>>> )*SIZEOF_INT32])) >>>> } >>>> >>>> return hbuffer >>>> } >>>> >>>> buffer := "83f982d600c1caca7a6" >>>> hbuffer := convertCharToInt32(buffer) >>>> >>>> >>>> >>>> The code above seems to work, but perhaps there is a built-in function >>>> in Go that I've missed or there is a super cool hack that does that in one >>>> instruction? >>>> >>>> >>>> -- 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.
