Introduction to arrays

Context

No code in this post. The goal is only to define how we can implement arrays.
In order to ease array manipulations, it's recommended to define some hypothesis.

• An array contains values
• It is delimited by zero values at the beginning and at the end
• Therefore, an array cannot contain '0' value.
• But an array can be empty

• Memory: 0, Array, 0

Then, all codes manipulating arrays in the coming posts will use this data structure, until a future one where a more complex structure will also allows null values.