Laboratory 1(part1): C++ Compilers

• Download the following files into an empty directory! 
  
  • Example 1

          ex1.exe [.exe]
           |
           +- ex1.cpp [.cpp]
    
          (Unix Makfile ex1.make)
          

  • Example 2
            
          

          ex2.exe [.exe]
           |
           +- ex2f1.cpp [.cpp]
           |
           +- ex2f2.cpp [.cpp]
           |
           +- ex2.h [.h]
    
          (Unix Makfile ex2.make)
          

  • Example 3

          ex3.exe [.exe]
           |
           +- ex3f1.cpp [.cpp]
           |
           +- ex3f2.cpp [.cpp]
           |
           +- ex2f1.cpp [.cpp]
           |
           +- ex3.h     [.h]
           |
           +- ex2.h     [.h]
    
          (Unix Makfile ex3.make)
          

• Use VC++ to compile the three programs and run them

• Use Borland C++ to compile the three programs and run them
  • Open up the Borland 6.0 IDE
  • Select [File] [new] [project]
  • Change the Target Model to Console
  • Edit the project name (something more inventive than proj0000.ide)
  • Change the intermediate, final, source and include directories to the one that you are using. [Options][Project]. Note that you will need the include path to the standard include directory. The directory paths can be separated by ; (semicolons). For example

       
           Include: g:\windows\bc5\include;c:\work\lab1
           ...
           Source: c:\work\lab1
           Intermediate: c:\work\lab1
           Final: c:\work\lab1
                

  • In the project sub-window, recreate the hierarchy I drew above for the particular example. (Delete the .rc and .def files) 
  • Select [Project] [Make All] 
  • Select [Debug] [Run]
  
  
  
• Run the last program in the debugger
  • Add a breakpoint to main. Open the file ex3f2.cpp, and place your cursor on the line int main (). Select [Debug][Add Breakpoint ...] and confirm that you want to stop at main in line 3. Now the line should be highlighted in red.
  • Use the Step into and Step over buttons from the icon bar to navigate the program. 
  
  
  
• Compile and run the programs under UNIX (optional!)

   

  • Read http://www.site.uottawa.ca/local/labinfo/unix.shtml for help
  • Download the files into an empty directory, together with the makefiles
  • Type:

          $make -f ex1.make
          $make -f ex2.make
          $make -f ex3.make
               

    ($ represents the prompt)
  • To run the programs, just type

          $ex1
          $ex2
          $ex3
               

  • The UNIX debugger is called gdb. To run a program in the debugger, all source files have to be separatelly compiled with the debugger flag ( -g). First, invoke the debugger with the last example, and set a breakpoint in the main function. The step command can be used to step into a function and execute line by line. The next command can be used to step line by line without stepping into functions. The cont command resumes execution until the next break point or program termination.

          $gdb ex3
          (gdb) break main
          Breakpoint 1 at ????
          (gdb) run
          Starting program: ex3
          Breakpoint 1 at, ??? in main()
          (gdb) step 
          game::game (this=0x????) at ex3f1.cpp:5
          5       game::game():d1(12),score1(0),score2(0) {
          Current language:  auto; currently c++
          (gdb) next
          6   }
          (gdb) cont
          ...
          Program exited normally.
          (gdb) quit
               

Laboratory 1 (part2): Basics

• Example 1

        scope.exe [.exe]
         |
         +- scope1.cpp [.cpp]
         |
         +- scope2.cpp [.cpp]
  
        (Unix Makfile scope.make)
        

  Explain the output and identify the scope of each variable. 
  
• Example 2 (Exercise!)

        loops.exe [.exe]
         |
         +- loops.cpp [.cpp]
  
        (Unix Makfile loops.make)
        

  Compile and run the program. Write a program, similar to this, which uses all the same loop constructs abd recursion to implement power, which calculates n^k (n and k are supplied by the user)
  
  
• Example 3 (Exrecise!)

        switch.exe [.exe]
         |
         +- switch.cpp [.cpp]
    
         (Unix Makfile switch.make)
        

  Modify the above program just by adding break; statements to the switch construct so that the output is as follows:

  	Exercise 1	Exercise 2	Exercise 3
  input	output	output	output
  a	ab	a	abcd
  b	b	bc	bcd
  c	cd	c	cd
  d	d	def*	d
  e	ef	ef*	e
  f	f	f*	f*
  ?	*	*	*

• Example 4 (Exrecise!)

        dollars.exe [.exe]
         |
         +- dollars.cpp [.cpp]
         +- dollars_solution.cpp [.cpp] (The solution)
  

  For example:

  Enter number of dimes and quarters: 23 9

  23 dimes and 9 quarters = $4.55

  Enter number of dimes and quarters: 88 33

  88 dimes and 33 quarters = $17.05