It would be extremely easy for C programmers if the world were simply made up of objects that were only numbers or names. Imagine if everyone were expressed as only a name or a series of numbers but nothing else. An automobile Vehicle Identification Number (VIN) precisely describes various attributes of that car and uniquely identifies it. On the other hand, humans are far more complex than automobiles. Perhaps the world would be a very uninteresting place.
For C programs to solve real-world problems, they have to be able to model real-world complex objects. C allows various aspects of real-world objects to be abstracted and modeled via C structures. In the previous chapter, in a very basic way, we explored two such objects – playing cards and two-dimensional shapes. Did we explore every aspect of them? No.
In fact, we barely scratched the surface. For playing cards, we need to be able to describe all 52 cards in a deck uniquely...
