diff src/agda-hoare-whileprog.agda @ 1:73127e0ab57c

(none)
author soto@cr.ie.u-ryukyu.ac.jp
date Tue, 08 Sep 2020 18:38:08 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/agda-hoare-whileprog.agda	Tue Sep 08 18:38:08 2020 +0900
@@ -0,0 +1,16 @@
+whileTestP : {l : Level} {t : Set l} → (c10 : ℕ) → (Code : Envc → t) → t
+whileTestP c10 next = next (record {c10 = c10 ; varn = c10 ; vari = 0 })
+
+whileLoopP' : {l : Level} {t : Set l} → Envc → (next : Envc → t) → (exit : Envc → t) → t
+whileLoopP' record { c10 = c10 ; varn = zero ; vari = vari } _ exit = exit record { c10 = c10 ; varn = zero ; vari = vari }
+whileLoopP' record { c10 = c10 ; varn = suc varn1 ; vari = vari } next _ = next (record {c10 = c10 ; varn = varn1 ; vari = suc vari })
+
+{-# TERMINATING #-}
+loopP : {l : Level} {t : Set l} → Envc → (exit : Envc → t) → t
+loopP env exit = whileLoopP' env (λ env → loopP env exit ) exit
+
+whileTestPCall : (c10 :  ℕ ) → Envc
+whileTestPCall c10 = whileTestP {_} {_} c10 (λ env → loopP env (λ env →  env))
+
+-- whileTestPCall 10
+-- record { c10 = 10 ; varn = 0 ; vari = 10 }