vendor/github.com/hashicorp/terraform/helper/hashcode/hashcode.go

   1 package hashcode
   2
   3 import (
   4         "hash/crc32"
   5 )
   6
   7 // String hashes a string to a unique hashcode.
   8 //
   9 // crc32 returns a uint32, but for our use we need
  10 // and non negative integer. Here we cast to an integer
  11 // and invert it if the result is negative.
  12 func String(s string) int {
  13         v := int(crc32.ChecksumIEEE([]byte(s)))
  14         if v >= 0 {
  15                 return v
  16         }
  17         if -v >= 0 {
  18                 return -v
  19         }
  20         // v == MinInt
  21         return 0
  22 }