Rule 20.8 and #elif

[rgamble]

It is pretty clear from the Amplification that this is not a violation of Rule 20.8:

Code:

#if 0
  #if 10  /* not evaluated, not a violation */
  #endif
#endif

and that this is:

Code:

#if 0
#elif 20  /* evaluated, violation */
#endif

but is the following intended to be a violation of this rule?:

Code:

#if 1
#elif 20  /* ??? */
#endif

It is not clear if the preprocessing directive #elif 20 is evaluated for the purpose of this rule.

[misra-c]

Code:

#if 1
#elif 20  /* rule 20.8 does not apply */
#endif

The #elif is considered to be in the code that is excluded and does not affect whether the code is excluded or not. Therefore the rule does not apply to the #elif controlling expression.