Code from lecture

https://github.com/ucsb-cs24-s18/cs24-s18-lectures/tree/master/lec-04

Topics

gdb

Demo of gdb commands using example from lab02
To use gdb, compile with the -g flag
Setting breakpoints (b)
Running programs that take arguments within gdb (r arguments)
Continue excution until breakpoint is reached (c)
Stepping into functions with step (s)
Stepping over functions with next (n)
Re-running a program (r)
Examining local variables (info locals)
Printing the value of variables with print (p)
Quitting gdb (q)
Debugging segfaults with backtrace (bt)
Refer to the gdb cheat sheet (handout given in class). More practice in lab 02.

Makefiles

We will split our implementation of the die Game from the previous class into three files - header file (contains only the class definition), source file (contains the implementation of the class methods - no main), test file - uses the ADT. (More practice on this in lab02)

The big four

Constructor
De-constructor
Copy-constructor
Copy-assignment

Operator overloading - Pages 63 - 80 in the book

We will start with a basic implementation of the point class from Chapter 2. We will then augment the class with binary operator functions. By overloading certain operators like ==, we can now write code as shown below:

point p1, p2;
if (p1 == p2){
  cout<<"Points are equal\n";
}

We will specifically discuss:

Overloading binary comparison operators e.g. ==
Overloading binary arithmetic operators e.g. +
Overloading output and input operators e.g. » and «

If time permits…

Review of pointers and dynamic memory allocation

Review of pointers, arrays
Passing parameters by value and address
Passing arrays to functions
Dynamic memory allocation and dynamic arrays