/// <summary>
/// Creates the octagonal constraint x = y
/// </summary>
public OctagonConstraintXEqualY(int x, int y)
{
this.x = x;
this.y = y;
this.c = Rational.For(0);
cachedXLeqY = new OctagonConstraintXMinusY(this.x, this.y, 0); // x <= y
cachedYLeqX = new OctagonConstraintXMinusY(this.y, this.x, 0); // y <= x
}
///<summary>
/// Construct an object for the equality x == c
///</summary>
public OctagonConstraintXEqualConst(int i, Rational c)
{
this.x = i;
this.y = -1;
this.c = c;
this.inf = new OctagonConstraintMinusX(i, -this.c);
this.sup = new OctagonConstraintX(i, this.c);
this.toAdd = new Set <OctagonConstraint>();
this.toAdd.Add(this.inf);
this.toAdd.Add(this.sup);
}
///<summary>
/// Construct an object for the equality x == c
///</summary>
public OctagonConstraintXEqualConst(int i, Rational c)
{
this.x = i;
this.y = -1;
this.c = c;
this.inf = new OctagonConstraintMinusX(i, -this.c);
this.sup = new OctagonConstraintX(i, this.c);
this.toAdd = new Set<OctagonConstraint>();
this.toAdd.Add(this.inf);
this.toAdd.Add(this.sup);
}
/// <summary>
/// Creates the octagonal constraint x = y
/// </summary>
public OctagonConstraintXEqualY(int x, int y)
{
this.x = x;
this.y = y;
this.c = Rational.For(0);
this.cachedXLeqY = new OctagonConstraintXMinusY(this.x, this.y, 0); // x <= y
this.cachedYLeqX = new OctagonConstraintXMinusY(this.y, this.x, 0); // y <= x
}
static public OctagonConstraint For(int a, int x, Rational k)
{
return(OctagonConstraint.For(a, x, (Int32)k));
}