/** Fonction maximum, max( AstList<Exp> ) */
public class ExpFmax extends Exp {
  public AstList<Exp> args;
  public ExpFmax(AstList<Exp> args) { super(args); this.args = args; }
  public Integer eval(){
    Integer res = Integer.MIN_VALUE;
    Integer v;
    for (AstNode e : args){
      v=((Exp)e).eval();
      if (v>res) res = v;
    }
    return res;
  }
  public void accept(AstVisitor v) { v.visit(this); }
}