How are macros different from functions?
Macros are different from functions in many ways like:
S.no | Macros | Functions |
---|---|---|
1. | Macros are pre-processed. | Functions are compiled. |
2. | The code length in macros always increases. | In functions, the length of the code does not change. |
3. | Macros do have side effects. | Functions do not have any side effects. |
4. | Compile errors cannot be checked in macros. | Compile errors can be checked in functions. |
5. | Macros are generally useful when small codes appear a number of times. | Functions are useful when large codes appear a number of times. |
6. | Type checking is not required for macros. | Type checking is required for functions. |
BY Best Interview Question ON 23 Mar 2019