plt_arr2.cpp

最新推荐文章于 2023-11-11 19:07:49 发布

原创最新推荐文章于 2023-11-11 19:07:49 发布 · 290 阅读

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#plot #stream #output #include #class #c

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name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <iostream.h>
#include <strstrea.h>

const int size = 5;

class plot {
   int x, y;
public:
   plot(void);
   plot(int i, int j)
    {
      if(i>size)
         i = size;
      if(i<0)
         i = 0;
      if(j>size)
         j = size;
      if(j<0)
         j=0;
      x=i;
      y=j;
    }
   friend ostream &operator<<(ostream &stream, plot obj);
};

ostream &operator<<(ostream & stream, plot obj)
{
register int i, j;

   for(j=size; j>=0; j--)
    {
      stream << j;
      if(j==obj.y)
       {
         for(i=0; i<obj.x; i++)
            stream << " ";
            stream << '*';
       }
      stream << endl;
    }
   for(i=0; i<=size; i++)
      stream << " " << i;
   stream << endl;
   return stream;
}

plot::plot(void)
{
cout << "Enter x value: ";
cin >> this->x;
cout << "/nEnter y value: ";
cin >> this->y;
}

void main(void)
{
   plot a(2,3), b(1,1), c;
   char str[200];
   ostrstream outs(str, sizeof(str));

   cout << "Output using cout:" << endl;
   cout << a << endl << b << endl << c << endl << endl;
   outs << a << b << c << ends;
   cout << "output using in-RAM formatting:" << endl;
   cout << str;
   istrstream ins(str);
}