Make the code clearer and faster by calling mask63 explicitly at the end.

Before this commit, function mask63 was called implicitly at each step.

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/uint63_31.ml b/kernel/uint63_31.ml
index 5b2d934b5d..696efacb32 100644
--- a/kernel/uint63_31.ml
+++ b/kernel/uint63_31.ml
@@ -72,12 +72,12 @@ let l_xor x y = Int64.logxor x y
     (* addition of int63 *)
 let add x y = mask63 (Int64.add x y)
 
-let addcarry x y = add (add x y) Int64.one
+let addcarry x y = mask63 Int64.(add (add x y) one)
 
     (* subtraction *)
 let sub x y = mask63 (Int64.sub x y)
 
-let subcarry x y = sub (sub x y) Int64.one
+let subcarry x y = mask63 Int64.(sub (sub x y) one)
 
     (* multiplication *)
 let mul x y = mask63 (Int64.mul x y)