Difference between macro and function

Difference between macro and function

No	Macro	Function
1	Macro is Preprocessed	Function is Compiled
2	No Type Checking	Type Checking is Done
3	Code Length Increases	Code Length remains Same
4	Use of macro can lead to side effect	No side Effect
5	Speed of Execution is Faster	Speed of Execution is Slower
6	Before Compilation macro name is replaced by macro value	During function call , Transfer of Control takes place
7	Useful where small code appears many time	Useful where large code appears many time
8	Generally Macros do not extend beyond one line	Function can be of any number of lines
9	Macro does not Check Compile Errors	Function Checks Compile Errors

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Tags / Keywords : | C Preprocessor, macro vs function

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