This document follows C90.
Recommended compiler : gcc compiler

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C Basics

• Special characters
• Numeral system
• Format directives
• ASCII Code
• Data type
• Suffix
• Operators

Represent variety of numbers using bits

• Represent negative integer using "Signed Magnitude".
• Represent negative integer using "1's complement".
• Represent negative integer using "2's complement".
• How to represent float number.
• How to represent double number.

Function

• module
• function vs procedure
• signature(return type, argument, function name, )

Preprocessor

• How preprocessor works.
• #include
• #define
• Macro function
• extra.

Statement

• Declaration ( declare variable, function, macro )
• Expression ( assign , calculate )
• Blank ( NULL, ;)
• Judgement ( if, else, else if, switch~case )
• Compound ( {...} )
• Loop ( for, while, do~while)
• Branch ( return, break, continue, goto )

Operators

• Operator precedence
• Kinds of operators.