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C Primer Plus, Fourth Edition by Stephen Prata

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Summary

A C program consists of one or more C functions. Every C program must contain a function called main() because it is the function called when the program starts up. A simple function consists of a header followed by an opening brace, followed by the statements constituting the function body, followed by a terminating, or closing, brace.

Each C statement is an instruction to the computer and is marked by a terminating semicolon. A declaration statement creates a name for a variable and identifies the type of data to be stored in the variable. The name of a variable is an example of an identifier. An assignment statement assigns a value to a variable or, more generally, to a storage area. A function call statement causes the named function ...

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