Avoid using device_spact_tag, device_ptr, & device_pointer_cast in the fallback_allocator example.
Avoid using device_spact_tag, device_ptr, & device_pointer_cast in the fallback_allocator example.

levendlee/thrust,google-code-export/thrust,rdmenezes/thrust,bfurtaw/thrust,lishi0927/thrust,julianromera/thrust,google-code-export/thrust,allendaicool/thrust,bfurtaw/thrust,julianromera/thrust,lishi0927/thrust,Vishwa07/thrust,levendlee/thrust,allendaicool/thrust,malenie/thrust,h1arshad/thrust,allendaicool/thrust,rdmenezes/thrust,malenie/thrust,julianromera/thrust,bfurtaw/thrust,julianromera/thrust,h1arshad/thrust,malenie/thrust,UIKit0/thrust,hemmingway/thrust,UIKit0/thrust,allendaicool/thrust,levendlee/thrust,google-code-export/thrust,lishi0927/thrust,Vishwa07/thrust,malenie/thrust,Vishwa07/thrust,hemmingway/thrust,rdmenezes/thrust,h1arshad/thrust,UIKit0/thrust,bfurtaw/thrust,levendlee/thrust,Vishwa07/thrust,hemmingway/thrust,lishi0927/thrust,google-code-export/thrust,UIKit0/thrust,h1arshad/thrust,rdmenezes/thrust,hemmingway/thrust