Fix casts in sign function
Fix casts in sign function

aep/clay,jckarter/clay,mario-campos/clay,jckarter/clay,aep/clay,mario-campos/clay,aep/clay,mario-campos/clay,jckarter/clay,mario-campos/clay,iamrekcah/clay,iamrekcah/clay,aep/clay,aep/clay,iamrekcah/clay,jckarter/clay,iamrekcah/clay,jckarter/clay,iamrekcah/clay,jckarter/clay,mario-campos/clay,aep/clay