Titlebook: C Quick Syntax Reference; Mikael Olsson Book 20151st edition Mikael Olsson 2015

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Loops,There are three looping structures in C, all of which are used to execute a specific code block multiple times. Just as with the conditional . statement, the curly brackets for the loops can be left out if there is only one statement in the code block.

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Functions,Functions are reusable code blocks that will only execute when called. They allow developers to divide their programs into smaller parts that are easier to understand and reuse.

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Typedef,An alias for a type can be created using the . keyword followed by the type and alias name. By convention, uppercase letters are commonly used for these definitions.

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Enum,Enum is a user-defined type consisting of a fixed list of named constants. In the following example, the enumeration type is called . and contains three constants: ., . and ..

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Storage Classes,Every variable has a storage class that determines its scope and lifetime. These storage classes include the following: auto, register, extern, and static. Each of these classes is also a keyword that can be placed before the data type to determine to which storage class a variable belongs.

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Constants,A constant is a variable with a value that cannot be changed once it has been assigned. This allows the compiler to enforce that a variable’s value is not changed anywhere in the code by mistake.

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Hello World,nt (IDE) that includes support for C. A good choice is Microsoft‘s Visual Studio Community Edition, which is a free version of Visual Studio that is available from Microsoft’s website. This IDE has built-in support for the C89 standard and also includes many features of C99 as of the 2013 version.