git.r.bdr.sh - rbdr/mobius/blob - concat/slices.go

   1 package concat
   2
   3 // Slices is a utility function to make appending multiple slices less painful and more efficient
   4 // Source: https://stackoverflow.com/questions/37884361/concat-multiple-slices-in-golang
   5 func Slices(slices ...[]byte) []byte {
   6         var totalLen int
   7         for _, s := range slices {
   8                 totalLen += len(s)
   9         }
  10         tmp := make([]byte, totalLen)
  11         var i int
  12         for _, s := range slices {
  13                 i += copy(tmp[i:], s)
  14         }
  15
  16         return tmp
  17 }