Type (recap)

This chapter is all about types, so its is important to have a good understanding of what a type is. A type is a specification for data, describing how it is stored and interpreted.

Figure x.y: Type defines the size and interpretation if values in your code

Note

• A Type is a kind of building block, describing the format and interpretation of values.
• Types specify the following:
  • The size (number of bits) needed to store a value of this type.
  • How the bits of the type are interpreted.
  • The operations that can be performed on values of this type.
• You can think of a type as a blueprint, specifying how data for this type is laid out in memory.
• The interpretation of a value depends on its type, for example 10100101 is Ñ if the value is a character type, but the same value would be 165 if it is an integer type.
• You can create your own types…