Stage 4.2: Structures

A struct is a collection of fields.

A field is simply a data value associated with a data structure. Its value can be of a primitive type or a data structure.

Its definition is like a blueprint for a compiler on how to layout the fields in memory nearby each other.

Further information:

• https://doc.rust-lang.org/std/keyword.struct.html
• https://doc.rust-lang.org/book/ch05-01-defining-structs.html