--- a/doc-src/IsarAdvanced/Codegen/Thy/examples/pick2.ML Fri Sep 05 11:50:35 2008 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,23 +0,0 @@
-structure Nat =
-struct
-
-datatype nat = Suc of nat | Zero_nat;
-
-fun less_nat m (Suc n) = less_eq_nat m n
- | less_nat n Zero_nat = false
-and less_eq_nat (Suc m) n = less_nat m n
- | less_eq_nat Zero_nat n = true;
-
-fun minus_nat (Suc m) (Suc n) = minus_nat m n
- | minus_nat Zero_nat n = Zero_nat
- | minus_nat m Zero_nat = m;
-
-end; (*struct Nat*)
-
-structure Codegen =
-struct
-
-fun pick ((k, v) :: xs) n =
- (if Nat.less_nat n k then v else pick xs (Nat.minus_nat n k));
-
-end; (*struct Codegen*)