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C Language > Learn C Language > Is it better to use a macro or a function?
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Is it better to use a macro or a function?

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Technology expert

function.
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Computer & Maths Professor

It depends on your requirement. If the function definition (code inside function) is too small say 1-2 lines, it is better to use macros otherwise use functions. Use of macros will speed up the execution process.
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Python and Unix Professional(10 years IT Exp)

Macro is gud for short program but function is good for long program..because macro expand which increase the size of running program.but function use switching address mechanism..
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Professional trainer Mtech from IIIT hyderabad and Previously with reputed university

Normally macro is of one or two line. it takes less time compare to function execution. But if number of line of code is more you can use function
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