國立暨南國際大學 96 學年度第一學期小考試卷

 
科目名稱：資訊系統 與網路導論 開課系所：資訊工程 學系 任課教師
 吳坤熹
系所別：
 年級：
 學號：
 姓名：
 考試日期
 2008.1.8

(考試時間: 8:10-8:20)


  1. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
    #include <iostream>
    using std::cout;
    using std::endl;
    double sum(double x, double y)
    {
            return x + y;
    }
    double product(double x, double y)
    {
            return x * y;
    }
    double difference(double x, double y)
    {
            return x - y;
    }
    int main()
    {
            double (*pfun[3]) (double, double) = {sum, product, difference };
            cout << pfun[1](2.5, 3.5) << endl;
            cout << *(pfun+1) (2.5, 3.5) << endl;
    }



  2. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s). 
    #include <iostream>
    using std::cout;
    using std::endl;
    double sum(double x, double y)
    {
            return x + y;
    }
    double product(double x, double y)
    {
            return x * y;
    }
    double difference(double x, double y)
    {
            return x - y;
    }
    int main()
    {
            double (*pfun[3]) (double, double) = {sum, product, difference };
            cout << pfun[1](2.5, 3.5) << endl;
            cout << (*(pfun+1)) (2.5, 3.5) << endl;
    }