1 files changed, 0 insertions, 26 deletions
diff --git a/plugins/extraction/ExtrHaskellZInt.v b/plugins/extraction/ExtrHaskellZInt.v
deleted file mode 100644
index 0345ffc4e8..0000000000
--- a/plugins/extraction/ExtrHaskellZInt.v
+++ /dev/null
@@ -1,26 +0,0 @@
-(** Extraction of [Z] into Haskell's [Int] *)
-
-Require Coq.extraction.Extraction.
-
-Require Import ZArith.
-Require Import ExtrHaskellZNum.
-
-(**
- * Disclaimer: trying to obtain efficient certified programs
- * by extracting [Z] into [Int] is definitively *not* a good idea.
- * See comments in [ExtrOcamlNatInt.v].
- *)
-
-Extract Inductive positive => "Prelude.Int" [
-  "(\x -> 2 Prelude.* x Prelude.+ 1)"
-  "(\x -> 2 Prelude.* x)"
-  "1" ]
-  "(\fI fO fH n -> if n Prelude.== 1 then fH () else
-                   if Prelude.odd n
-                   then fI (n `Prelude.div` 2)
-                   else fO (n `Prelude.div` 2))".
-
-Extract Inductive Z => "Prelude.Int" [ "0" "(\x -> x)" "Prelude.negate" ]
-  "(\fO fP fN n -> if n Prelude.== 0 then fO () else
-                   if n Prelude.> 0 then fP n else
-                   fN (Prelude.negate n))".