| author | haftmann |
| Mon, 31 May 2010 17:29:28 +0200 | |
| changeset 37211 | 32a6f471f090 |
| parent 30226 | 2f4684e2ea95 |
| permissions | -rw-r--r-- |
| 21341 | 1 |
structure Nat = |
2 |
struct |
|
3 |
||
| 24421 | 4 |
datatype nat = Suc of nat | Zero_nat; |
| 21341 | 5 |
|
| 26318 | 6 |
fun less_nat m (Suc n) = less_eq_nat m n |
| 21994 | 7 |
| less_nat n Zero_nat = false |
| 26318 | 8 |
and less_eq_nat (Suc m) n = less_nat m n |
9 |
| less_eq_nat Zero_nat n = true; |
|
| 21341 | 10 |
|
11 |
end; (*struct Nat*) |
|
12 |
||
13 |
structure Codegen = |
|
14 |
struct |
|
15 |
||
16 |
fun in_interval (k, l) n = |
|
| 21994 | 17 |
(Nat.less_eq_nat k n) andalso (Nat.less_eq_nat n l); |
| 21341 | 18 |
|
19 |
end; (*struct Codegen*) |