WEBVTT

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This will be a pretty short lecture.

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But I want to go over a another way to create user defined types and be a very simple way.

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And one of ways you can actually rename existing types.

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So how you do that is through our keyword typedef

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and typedef works like this so you have the keyword type def and then you place your existing type here

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and then space and then you have your new type name here.

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OK.

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So this is kind of the template you use to rename types.

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So say you want to rename and ginger to be an ID type instead.

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Like for books.

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So now I can use id type instead of integers ID type my ID in its for 7 or 8 or.

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OK so this is one way you can create a user defined type and you may ask why use this.

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What is why and why is this useful at all.

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And well theres two main reasons I can think of if you want to use this one.

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It helps with readability of your code so you can make it more expressive and follow the language of

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the problem better.

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But also number two it helps if you say if you say you want to change the type later to something else

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you want it to be a noun sine type unsigned int type.

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OK.

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Well I just change it here once and then all ID types will be updated.

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K so this is one nice way to change the readability of your code to make it more of the language of

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the problem.

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And in the next lecture I want to go over yet one more way to make your own types.