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Question:

Is it correct to think that a keyword is out of the scope of Rule 20.1?

For example, \"#define int (10)\" violates Rule 19.4, doesn't it?

Answer: MISRA C Steering Team 7/9/2005

Keywords (as defined in 6.1.1) shall be considered to be in the scope of 20.1.
This is detailed in the supporting text and will be clarified in the Technical Corrigendum.

#define int (10)

This is not a violation of 19.4.

19.4 is concerned with the replacement text of a macro, and not its name.