The typedef keyword in C
An introduction to the typedef keyword in C
The typedef keyword in C allows you to defined new types.
Starting from the built-in C types, we can create our own types, using this syntax:
typedef existingtype NEWTYPEThe new type we create is usually, by convention, uppercase.
This it to distinguish it more easily, and immediately recognize it as type.
For example we can define a new NUMBER type that is an int:
typedef int NUMBERand once you do so, you can define new NUMBER variables:
NUMBER one = 1;Now you might ask: why? Why not just use the built-in type int instead?
Well, typedef gets really useful when paired with two things: enumerated types and structures.
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