Perform the following steps to try the recipe:

1. From a new Terminal, run the following to download the source code:

> cd ~/
> git clone https://github.com/PacktPublishing/Advanced-CPP-CookBook.git
> cd Advanced-CPP-CookBook/chapter02

2. To compile the source code, run the following:

> mkdir build && cd build
> cmake ..
> make recipe02_examples

3. Once the source code is compiled, you can execute each example in this recipe by running the following commands:

> ./recipe02_example01
could foo throw: true

> ./recipe02_example02
could foo throw: true
could foo throw: true
could foo throw: false
could foo throw: false

> ./recipe02_example03
terminate called after throwing an instance of 'std::runtime_error'
what(): The answer is: 42
Aborted

> ./recipe02_example04

> ./recipe02_example05
terminate called after throwing an instance of 'std::runtime_error'
what(): The answer is: 42
Aborted

> ./recipe02_example06
could foo throw: true
could foo throw: true

In the next section, we will step through each of these examples and explain what each example program does and how it relates to the lessons being taught in this recipe.