* Exercise 4

Debuggers, baby!

#+BEGING_SRC plaintext
gdb --args // this flag allows you to pass arguments *through* gdb
           // into a program, without this flag gdb assumes any
           // passed arguments are for it

gdb --batch --ex r --ex bt --ex q --args
// run the program so that if it fails you get a backtrace
#+END_SRC

Sometimes you have lldb instead of gdb. They are similar, but slightly different -- brace yourself for this.