1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
(* This file checks that operations over sint63 are signed. *)
Require Import Sint63.
Open Scope sint63_scope.
(* (0-1) must be negative 1 and not the maximum integer value *)
Check (eq_refl : 1/(0-1) = -1).
Check (eq_refl (-1) <: 1/(0-1) = -1).
Check (eq_refl (-1) <<: 1/(0-1) = -1).
Definition compute1 := Eval compute in 1/(0-1).
Check (eq_refl compute1 : -1 = -1).
Check (eq_refl : 3 mod (0-1) = 0).
Check (eq_refl 0 <: 3 mod (0-1) = 0).
Check (eq_refl 0 <<: 3 mod (0-1) = 0).
Definition compute2 := Eval compute in 3 mod (0-1).
Check (eq_refl compute2 : 0 = 0).
|
