Declaration of variables used within the operators overloading function

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Declaration of variables used within the operators overloading function

 
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  #1
Jan 29th, 2008
Hello everyone,

I am trying to make a program which takes two integer parameters (HeightinInches,HeightinFeet) i.e. (7,30) and then displays the output by converting it into feet and inches. I am using three operators i.e. +,++, a constant integer number=27.

After compilation I got following major errors in which I stuck up and need your help :


106 D:\MCS Work\Assignment-6-NEW-C++\mc070401526.cpp `HeightinFeet' is not a type
106 D:\MCS Work\Assignment-6-NEW-C++\mc070401526.cpp request for member of non-aggregate type before '=' token
107 D:\MCS Work\Assignment-6-NEW-C++\mc070401526.cpp `HeightinInches' is not a type
107 D:\MCS Work\Assignment-6-NEW-C++\mc070401526.cpp request for member of non-aggregate type before '=' token


So, my question is how and where to describe my integer variables "heightinFeet" and "heightinInches". Note, I have described these two variables in "Private:" but it is not working.
Here is the code:
It's a time limit case guys, please response quicky. I will be waiting for your quick response.

c++ Syntax (Toggle Plain Text) 
  1.  
  2. #include<iostream.h>
  3. using std::cout;
  4. using std::cin;
  5. using std::ios;
  6. //Definition of Class
  7. class Height
  8. {
  9.       // Class interface
  10.       public:
  11.              // Methods & Constructors of Class
  12.              Height();
  13.              Height(int, int);
  14.              void h1(int);
  15.              void h2(int);
  16.              void h3(int, int);
  17.              void h4(int,int);
  18.              // Member Functions
  19.              int getFeet();
  20.              int getInches();
  21.              void display(int, int);
  22.       private:
  23.               int HeightinFeet;
  24.               int HeightinInches;
  25. }; // End of class
  26. // Constructors
  27. Height::Height()
  28. {
  29.                 getFeet(HeightinFeet==0);
  30.                 getInches(HeightinInches==0);
  31. } // End of default constructor
  32.  
  33. void Height::h1(int HeightinInches1)
  34. {
  35.      if (HeightinInches1 >= 12)
  36.      {
  37.                    HeightinInches1=HeightinInches1-12;
  38.                    HeightinInches=HeightinInches1;
  39.                    HeightinFeet=HeightinFeet + 1;
  40.      }
  41.      else
  42.      {
  43.                    HeightinInches = HeightinInches1;
  44.      } // end if
  45. } // End of constructor h1
  46.  
  47. void Height::h2(int heightinFeet2, int heightinInches2)
  48. {
  49.      if (heightinInches2 >= 12)
  50.      {
  51.                    heightinInches2=heightinInches2-12;
  52.                    HeightinInches=heightinInches2;
  53.                    HeightinFeet=HeightinFeet + 1;
  54.      }
  55.      else
  56.      {
  57.                    HeightinInches = heightinInches2;
  58.      } // end if
  59. } // End of constructor h2
  60.  
  61. void Height::h3(int heightinFeet3, int heightinInches3)
  62. {
  63.      if (heightinInches3 >= 12)
  64.      {
  65.                    heightinInches3=heightinInches3-12;
  66.                    HeightinInches=heightinInches3;
  67.                    HeightinFeet=HeightinFeet + 1;
  68.      }
  69.      else
  70.      {
  71.                    HeightinInches = heightinInches3;
  72.      } // end if
  73. } // End of constructor h3
  74.  
  75. void Height::h4(int heightinFeet4, int heightinInches4)
  76. {
  77.      if (heightinInches4 >= 12)
  78.      {
  79.                    heightinInches4=heightinInches4-12;
  80.                    HeightinInches=heightinInches4;
  81.                    HeightinFeet=HeightinFeet + 1;
  82.      }
  83.      else
  84.      {
  85.                    HeightinInches = heightinInches4;
  86.      } // end if
  87. } // End of constructor h4
  88.  
  89. // Get member Functions
  90. int Height::getFeet()
  91. {
  92.     return HeightinFeet();
  93. } // End function getFeet
  94. int Height::getInches()
  95. {
  96.     return HeightinInches();
  97. } // End function getInches
  98. // Function to display Height in Feet & Inches
  99. void Height::display(int heightinFeet, int heightinInches)
  100. {
  101.      cout<<"\n\n Height = "<<HeightinFeet<<" Feet "<<HeightinInches<<" Inches";
  102. } // End display function
  103.  
  104. // HOW AND WHERE SHOULD I DELCARE THE HeightinInches & HeightinFeet;
  105. // Declaration (prototype) of overloaded sum operator
  106. int Height:: operator +(int h1)
  107. {
  108.     int temp;
  109.     temp.HeightinFeet = HeightinFeet + h1.HeightinFeet;
  110.     temp.HeightinInches = HeightinInches + h1.HeightinInches;
  111.     return temp;
  112. }
  113.  
  114. // HOW AND WHERE SHOULD I DELCARE THE HeightinInches & HeightinFeet;
  115. // Declaration (prototype) of overloaded pre-increament operator ++ operator
  116. int Height::operator++(int h4)
  117. {
  118.     int temp1;
  119.     temp1.HeightinFeet = HeightinFeet++;
  120.     temp1.HeightinInches = HeightinInches++;
  121.     return temp1;
  122. }
  123.  
  124. // HOW AND WHERE SHOULD I DELCARE THE HeightinInches & HeightinFeet;
  125. // Declaration (prototype) of overloaded sum operator with constant number 27
  126. int Height::operator+(int number, int h3)
  127. {
  128.     int number = 27;
  129.     int temp2;
  130.     temp2.HeightinFeet = HeightinFeet + h3.HeightinFeet;
  131.     temp2.HeightinInches = number + h3.HeightinInches++;
  132.     return temp2;
  133. }
  134. // Main function starts
  135. int main()
  136. {
  137.     Height h1;
  138.     Height h2(25);
  139.     Height h3(2,35);
  140.     Height h4(2,25);
  141.     cout<<"********************h1********************"<<endl;
  142.     h1.display();
  143.     cout<<"********************h2********************"<<endl;
  144.     h2.display();
  145.     cout<<"********************h3********************"<<endl;
  146.     h3.display();
  147.     cout<<"********************h4********************"<<endl;
  148.     h4.display();
  149.     cout<<"******************************************"<<endl;
  150.     if(h2==h3)
  151.     {
  152.               cout<<"h2 is equal to h1"<<endl;
  153.     else if(h2>h3)
  154.               cout<<"h2 is greater than h3"<<endl;
  155.     else
  156.               cout<<"h2 is less then h3"<<endl;
  157.     cout<<"****************h1=h2+h3*******************"<<endl;
  158.     h1=h2+h3;
  159.     h1.display();
  160.     cout<<"*******************h4++********************"<<endl;
  161.     h4++;
  162.     h4.display();
  163.     cout<<"*****************h4=27+h3******************"<<endl;
  164.      h4=27+h3;
  165.      h4.27+h3;
  166.      h4.display();
  167.  
  168.      return 0;
  169. }

Please feel free to enquire about any thing.
regards.
Last edited by Ancient Dragon; Jan 29th, 2008 at 6:56 am. Reason: replace icode tags with code tags
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Re: Declaration of variables used within the operators overloading function

 
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  #2
Jan 29th, 2008
dude your code is too difficult to read, next time please indent it properly and put in [CODE][\CODE] tags

however i can make out that you have not overloaded the operators in your class. The operator funtions need to be declared as member functions of your class

got it?
Last edited by Agni; Jan 29th, 2008 at 6:21 am.
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Re: Declaration of variables used within the operators overloading function

 
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  #3
Jan 29th, 2008
on my first glance i can c a lot more errors once you do this you might have to solve those too..
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Re: Declaration of variables used within the operators overloading function

 
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Jan 29th, 2008
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Originally Posted by chandra.rajat View Post
on my first glance i can c a lot more errors once you do this you might have to solve those too..

That's right I am getting too many more errors but, my basic problem is the one which I mentioned above.

If you or anyone else could please describe me about this problem by giving code, it would be very helpful for me.

regards,
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Re: Declaration of variables used within the operators overloading function

 
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  #5
Jan 29th, 2008
i think i gave the solution to your problem in my first post
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Re: Declaration of variables used within the operators overloading function

 
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  #6
Jan 29th, 2008
The problem is that type int does not have members named HeightinFeet and HeightinInches.

Starting at line 108:
C++ Syntax (Toggle Plain Text) 
  1.   int temp;
  2.   temp.HeightinInches = ...

An int is not a Height.

Chandra.rajat hit it right on: your operators are supposed to work on your class. So, the + operator should have the following prototype:
Height Height::operator + ( Height &h )
Remember, you are supposed to be adding Heights.

Hope this helps.
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