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-rw-r--r--src/test/power.sail2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/test/power.sail b/src/test/power.sail
index dc07f97e..2b73e361 100644
--- a/src/test/power.sail
+++ b/src/test/power.sail
@@ -8,6 +8,8 @@ val extern bit -> bit effect pure (deinfix ~ ) = "bitwise-not"
val extern ( bit * bit ) -> bit effect pure (deinfix ^ ) = "bitwise-xor"
val extern ( bit * bit ) -> bit effect pure (deinfix & ) = "bitwise-and"
+val extern bit -> bool effect pure is_one = "is_one"
+
(* XXX sign extension *)
function forall Type 'a . 'a exts ( x ) = x