Rule 12.6

[azukich]

Klocwork has been getting a number of complaints on our interpretation of rule 12.6. For example:

If(TRUE==TRUE) ...

So if TRUE is a Boolean. “==” is not of &&, ||, !. We report this as a violation, since the code should look like
If(TRUE) ...

Many people have debated this. Are we misunderstanding this?

[misra-c]

This rule was clarified in technical corrigendum (TC1) and the wording is now:

The operands of logical operators (&&, || and !) should be effectively Boolean. Expressions that are effectively Boolean should not be used as operands to operators other than (&&, ||, !, =, ==, != and ?:)

According to this wording, your example:

Code:

if (TRUE==TRUE)

is not a violation of Rule 12.6.