Why doesn't code from TYC++in21days work?

[Gerald Lafreniere]

http://www.libertyassociates.com/pages/Books.htm

http://www.libertyassociates.com/pages/files/TYCPP4eSource.zip

In the archive above this file can be found at
    TYCPP4eSource\TYCPP 4e Source\WIR\4eWir1.cpp

I use the latest version of the gcc with Bloodshed's Dev-Cpp:

gcc (GCC) 3.2 (mingw special 20020817-1)
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 

I try to compile it just like it is, so coming from a text book on the topic, it should be right, right?

I get 32 errors in the compiler log.

ERROR LOG(source is further down the page)

Compiler: Default compiler
Executing  g++.exe...
g++.exe "C:\c\4eWir1.cpp" -o "C:\c\4eWir1.exe"    -I"C:\Dev-Cpp\include\c++"  -I"C:\Dev-Cpp\include\c++\mingw32"  -I"C:\Dev-Cpp\include\c++\backward"  -I"C:\Dev-Cpp\lib\gcc-lib\mingw32\3.2\include"  -I"C:\Dev-Cpp\include"   -L"C:\Dev-Cpp\lib"
C:/c/4eWir1.cpp:46: variable or field `DoDrawRect' declared void

C:/c/4eWir1.cpp:46: invalid conversion from `BOOL (*)(HDC__*, int, int, int,
   int)' to `int'

C:/c/4eWir1.cpp:47: variable or field `DoGetArea' declared void

C:/c/4eWir1.cpp:47: invalid conversion from `BOOL (*)(HDC__*, int, int, int,
   int)' to `int'

C:/c/4eWir1.cpp:48: variable or field `DoGetPerim' declared void

C:/c/4eWir1.cpp:48: invalid conversion from `BOOL (*)(HDC__*, int, int, int,
   int)' to `int'

C:/c/4eWir1.cpp: In function `int main()':
C:/c/4eWir1.cpp:53: `Rectangle' undeclared (first use this function)

C:/c/4eWir1.cpp:53: (Each undeclared identifier is reported only once for each
   function it appears in.)

C:/c/4eWir1.cpp:53: parse error before `(' token

C:/c/4eWir1.cpp:69: `theRect' undeclared (first use this function)

C:/c/4eWir1.cpp:69: `DoDrawRect' cannot be used as a function

C:/c/4eWir1.cpp:72: `DoGetArea' cannot be used as a function

C:/c/4eWir1.cpp:75: `DoGetPerim' cannot be used as a function

C:/c/4eWir1.cpp:84: `DoDrawRect' cannot be used as a function

C:/c/4eWir1.cpp: At global scope:
C:/c/4eWir1.cpp:113: parse error before `)' token

C:/c/4eWir1.cpp: In function `void DoDrawRect(...)':
C:/c/4eWir1.cpp:114: `void DoDrawRect(...)' redeclared as different kind of
   symbol

C:/c/4eWir1.cpp:46: previous declaration of `int DoDrawRect'

C:/c/4eWir1.cpp:46: previous non-function declaration `int DoDrawRect'

C:/c/4eWir1.cpp:114: conflicts with function declaration `void DoDrawRect(...)'

C:/c/4eWir1.cpp: At global scope:
C:/c/4eWir1.cpp:127: parse error before `)' token

C:/c/4eWir1.cpp: In function `void DoGetArea(...)':
C:/c/4eWir1.cpp:128: `void DoGetArea(...)' redeclared as different kind of
   symbol

C:/c/4eWir1.cpp:47: previous declaration of `int DoGetArea'

C:/c/4eWir1.cpp:47: previous non-function declaration `int DoGetArea'

C:/c/4eWir1.cpp:128: conflicts with function declaration `void DoGetArea(...)'

C:/c/4eWir1.cpp: At global scope:
C:/c/4eWir1.cpp:132: parse error before `)' token

C:/c/4eWir1.cpp: In function `void DoGetPerim(...)':
C:/c/4eWir1.cpp:133: `void DoGetPerim(...)' redeclared as different kind of
   symbol

C:/c/4eWir1.cpp:48: previous declaration of `int DoGetPerim'

C:/c/4eWir1.cpp:48: previous non-function declaration `int DoGetPerim'

C:/c/4eWir1.cpp:133: conflicts with function declaration `void DoGetPerim(...)'

Execution terminated

START OF PROGRAM

#include <iostream>
using namespace std;
enum CHOICE { DrawRect = 1, GetArea, GetPerim,
 ChangeDimensions, Quit};

// Rectangle class declaration
class Rectangle
{
public:
    // constructors
     Rectangle(int width, int height);
     ~Rectangle();

     // accessors
     int GetHeight() const { return itsHeight; }
     int GetWidth() const { return itsWidth; }
     int GetArea() const { return itsHeight * itsWidth; }
     int GetPerim() const { return 2*itsHeight + 2*itsWidth; }
     void SetSize(int newWidth, int newHeight);

     // Misc. methods
 

   private:
     int itsWidth;
     int itsHeight;
};

// Class method implementations
void Rectangle::SetSize(int newWidth, int newHeight)
{
   itsWidth = newWidth;
   itsHeight = newHeight;
}
 

Rectangle::Rectangle(int width, int height)
{
   itsWidth = width;
   itsHeight = height;
}

Rectangle::~Rectangle() {}

int DoMenu();
void DoDrawRect(Rectangle);
void DoGetArea(Rectangle);
void DoGetPerim(Rectangle);

int main ()
{
   // initialize a rectangle to 30,5
   Rectangle theRect(30,5);

   int choice = DrawRect;
   int fQuit = false;

   while (!fQuit)
   {
     choice = DoMenu();
     if (choice < DrawRect || choice >  Quit)
     {
       cout << "\nInvalid Choice, please try again.\n\n";
       continue;
     }
     switch (choice)
     {
     case  DrawRect:
       DoDrawRect(theRect);
       break;
     case GetArea:
       DoGetArea(theRect);
       break;
     case GetPerim:
       DoGetPerim(theRect);
       break;
     case ChangeDimensions:
       int newLength, newWidth;
       cout << "\nNew width: ";
       cin >> newWidth;
       cout << "New height: ";
       cin >> newLength;
       theRect.SetSize(newWidth, newLength);
       DoDrawRect(theRect);
       break;
     case Quit:
       fQuit = true;
       cout << "\nExiting...\n\n";
       break;
     default:
       cout << "Error in choice!\n";
       fQuit = true;
       break;
     }   // end switch
   }     // end while
 return 0;
}       // end main

int DoMenu()
{
   int choice;
    cout << "\n\n   *** Menu *** \n";
    cout << "(1) Draw Rectangle\n";
    cout << "(2) Area\n";
    cout << "(3) Perimeter\n";
    cout << "(4) Resize\n";
    cout << "(5) Quit\n";

  cin >> choice;
  return choice;
 }

 void DoDrawRect(Rectangle theRect)
 {
   int height = theRect.GetHeight();
   int width = theRect.GetWidth();

   for (int i = 0; i<height; i++)
   {
     for (int j = 0; j< width; j++)
       cout << "*";
     cout << "\n";
   }
 }
 

 void DoGetArea(Rectangle theRect)
 {
   cout << "Area: " <<  theRect.GetArea() << endl;
 }

 void DoGetPerim(Rectangle theRect)
 {
   cout << "Perimeter: " <<  theRect.GetPerim() << endl;
 }
 

Thanks for any help on this.
Gerald Lafreniere