private void MkExprPred(BDD moveCond, out Expr chExpr, out Expr chPred)
{
if (css.ComputeDomainSize(moveCond) == 1)
{
var ch = (char)css.Choose(moveCond);
chExpr = stb.Solver.MkCharExpr(ch);
chPred = stb.Solver.MkCharConstraint(ch);
}
else if (css.ComputeDomainSize(css.MkNot(moveCond)) == 1)
{
var ch = (char)css.Choose(css.MkNot(moveCond));
chExpr = stb.MkInputVariable(stb.Solver.CharSort);
chPred = stb.Solver.MkNot(stb.Solver.MkCharConstraint(ch));
}
else if (css.ComputeDomainSize(moveCond) == 2)
{
var ch1 = (char)css.GetMin(moveCond);
var ch2 = css.GetMax(moveCond);
chExpr = stb.MkInputVariable(stb.Solver.CharSort);
chPred = stb.Solver.MkOr(stb.Solver.MkCharConstraint(ch1), stb.Solver.MkCharConstraint(ch2));
}
else if (css.ComputeDomainSize(css.MkNot(moveCond)) == 2)
{
var ch1 = (char)css.GetMin(css.MkNot(moveCond));
var ch2 = css.GetMax(css.MkNot(moveCond));
chExpr = stb.MkInputVariable(stb.Solver.CharSort);
chPred = stb.Solver.MkAnd(stb.Solver.MkNot(stb.Solver.MkCharConstraint(ch1)),
stb.Solver.MkNot(stb.Solver.MkCharConstraint(ch2)));
}
else
{
var ranges = css.ToRanges(moveCond);
chPred = stb.Solver.MkRangesConstraint(false, Array.ConvertAll(ranges, r => new char[] { (char)r.Item1, (char)r.Item2 }));
chExpr = stb.MkInputVariable(stb.Solver.CharSort);
}
}
public void MinMaxTest()
{
CharSetSolver solver = new CharSetSolver(BitWidth.BV16);
var ranges = new char[][] {
new char[] { '\u55A0', '\u55AA' },
new char[] { 'a', 'c' },
new char[] { '\u5555', '\u55A5' },
new char[] { 'e', 'h' }
};
BDD s = solver.MkRangesConstraint(false, ranges);
char c = solver.GetMax(s);
Assert.AreEqual <char>('\u55AA', c, "not the maximum character");
c = (char)solver.GetMin(s);
Assert.AreEqual <char>('a', c, "not the minimum character");
}
public void MinMaxTest()
{
CharSetSolver solver = new CharSetSolver(BitWidth.BV16);
var ranges = new char[][] {
new char[] {'\u55A0', '\u55AA'},
new char[] { 'a', 'c' },
new char[] {'\u5555', '\u55A5'},
new char[] { 'e', 'h' }
};
BDD s = solver.MkRangesConstraint(false, ranges);
char c = solver.GetMax(s);
Assert.AreEqual<char>('\u55AA', c, "not the maximum character");
c = (char)solver.GetMin(s);
Assert.AreEqual<char>('a', c, "not the minimum character");
}
