diff options
Diffstat (limited to 'theories/Strings')
| -rw-r--r-- | theories/Strings/Ascii.v | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/theories/Strings/Ascii.v b/theories/Strings/Ascii.v index 1ed9140a5..4f6fe3f86 100644 --- a/theories/Strings/Ascii.v +++ b/theories/Strings/Ascii.v @@ -65,7 +65,7 @@ Definition ascii_of_N (n : N) := (** Same for [nat] *) -Definition ascii_of_nat (a : nat) := ascii_of_N (N_of_nat a). +Definition ascii_of_nat (a : nat) := ascii_of_N (N.of_nat a). (** The opposite functions *) @@ -81,7 +81,7 @@ Definition N_of_ascii (a : ascii) : N := let (a0,a1,a2,a3,a4,a5,a6,a7) := a in N_of_digits (a0::a1::a2::a3::a4::a5::a6::a7::nil). -Definition nat_of_ascii (a : ascii) : nat := nat_of_N (N_of_ascii a). +Definition nat_of_ascii (a : ascii) : nat := N.to_nat (N_of_ascii a). (** Proofs that we have indeed opposite function (below 256) *) @@ -111,10 +111,10 @@ Theorem nat_ascii_embedding : Proof. intros. unfold nat_of_ascii, ascii_of_nat. rewrite N_ascii_embedding. - apply nat_of_N_of_nat. - unfold Nlt. - change 256%N with (N_of_nat 256). - rewrite <- N_of_nat_compare. + apply Nat2N.id. + unfold N.lt. + change 256%N with (N.of_nat 256). + rewrite <- Nat2N.inj_compare. rewrite <- Compare_dec.nat_compare_lt. auto. Qed. |