diff options
| -rw-r--r-- | theories/Numbers/Cyclic/Int31/Int31.v | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/theories/Numbers/Cyclic/Int31/Int31.v b/theories/Numbers/Cyclic/Int31/Int31.v index d2e6c70b92..20f750f643 100644 --- a/theories/Numbers/Cyclic/Int31/Int31.v +++ b/theories/Numbers/Cyclic/Int31/Int31.v @@ -349,16 +349,16 @@ Register div31 as int31 div in "coq_int31" by True. Register compare31 as int31 compare in "coq_int31" by True. Register addmuldiv31 as int31 addmuldiv in "coq_int31" by True. -Definition gcd31 (i j:int31) := - (fix euler (guard:nat) (i j:int31) {struct guard} := - match guard with - | O => In - | S p => match j ?= On with - | Eq => i - | _ => euler p j (let (_, r ) := i/j in r) - end - end) - (2*size)%nat i j. +Fixpoint euler (guard:nat) (i j:int31) {struct guard} := + match guard with + | O => In + | S p => match j ?= On with + | Eq => i + | _ => euler p j (let (_, r ) := i/j in r) + end + end. + +Definition gcd31 (i j:int31) := euler (2*size)%nat i j. (** Square root functions using newton iteration we use a very naive upper-bound on the iteration |