MkBVLSHR() public méthode

Logical shift right
It is equivalent to unsigned division by 2^x where \c x is the value of t2. NB. The semantics of shift operations varies between environments. This definition does not necessarily capture directly the semantics of the programming language or assembly architecture you are modeling. The arguments must have a bit-vector sort.
public MkBVLSHR ( BitVecExpr t1, BitVecExpr t2 ) : BitVecExpr
t1 BitVecExpr
t2 BitVecExpr
Résultat BitVecExpr
Context Class Documentation
Exemple #1
0
    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            BitVecExpr x = ctx.MkBVConst("x", 32);
            BitVecExpr y = ctx.MkBVConst("y", 32);

            BitVecExpr two = ctx.MkBV(2, 32);
            BitVecExpr three = ctx.MkBV(3, 32);
            BitVecExpr tf = ctx.MkBV(24, 32);

            Solver s = ctx.MkSolver();
            s.Assert(ctx.MkEq(ctx.MkBVLSHR(x, two), three));
            Console.WriteLine(s.Check());
            Console.WriteLine(s.Model);

            s = ctx.MkSolver();
            s.Assert(ctx.MkEq(ctx.MkBVSHL(x, two), three));
            Console.WriteLine(s.Check());

            s = ctx.MkSolver();
            s.Assert(ctx.MkEq(ctx.MkBVRotateLeft(x, two), three));
            Console.WriteLine(s.Check());
            Console.WriteLine(s.Model);

            s = ctx.MkSolver();
            s.Assert(ctx.MkEq(ctx.MkBVSHL(x, two), tf));
            Console.WriteLine(s.Check());
            Console.WriteLine(s.Model);
        }
    }