Appendix A Summary of guidelines
Rule 1.1
C Syntax violation
Rule 1.2
txt rule 1.2
Rule 1.3
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Rule 2.1
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Rule 2.2
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Rule 2.3
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Rule 2.4
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Rule 2.5
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Rule 2.6
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Rule 2.7
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Rule 3.1
Mandatory - /* and // cannot used within a comment (ie No nested comments)
Rule 3.2
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Rule 4.1
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Rule 4.2
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Rule 5.1
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Rule 5.2
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Rule 5.3
Mandatory - An identifier (variable) in an outer scope shall not be redfined within an inner scope
Rule 5.4
Mandatory - Macro names must be unique
Rule 5.5
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Rule 5.6
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Rule 5.7
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Rule 5.8
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Rule 5.9
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Rule 6.1
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Rule 6.2
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Rule 7.1
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Rule 7.2
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Rule 7.3
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Rule 7.4
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Rule 8.1
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Rule 8.2
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Rule 8.3
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Rule 8.4
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Rule 8.6
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Rule 8.7
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Rule 8.8
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Rule 8.9
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Rule 8.10
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Rule 8.11
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Rule 8.12
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Rule 8.13
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Rule 8.14
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Rule 9.1
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Rule 9.2
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Rule 9.3
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Rule 9.4
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Rule 9.5
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Rule 10.1
Mandatory - Operations must be of an essentially correct type (Eg no shift on signed values, comparison is not boolean, incrementing/decrementing a bool etc) 
Rule 10.2
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Rule 10.3
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Rule 10.4
Mandatory - The target of an operation must be of an appropriate type
Rule 10.5
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Rule 10.6
Mandatory - An expression should not assign a value to a variable of a narrower or essentially different type
Rule 10.7
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Rule 10.8
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Rule 11.1
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Rule 11.2
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Rule 11.3
Mandatory - A cast shall not be performed between a pointer to object type and a pointer to a different object type
Rule 11.4
Advisory - Object pointers should not be treated as or converted to integers
Rule 11.5
Advisory - A void pointer should not be converted to an object pointer
Rule 11.6
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Rule 11.7
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Rule 11.8
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Rule 11.9
Mandatory - An integer null pointer shall have no value assigned other than NULL macro
Rule 12.1
Advisory - Order of operations within an expression must be explicit. Multiple conditions in a logical operation should have brackets around them.
Rule 12.2
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Rule 12.3
Advisory - The comma operator is not permitted.
Rule 12.4
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Rule 13.1
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Rule 13.2
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Rule 13.3
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Rule 13.4
Advisory - Assignment operation should not be used in an expression (Check for = when == should have been used)
Rule 13.5
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Rule 13.6
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Rule 14.1
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Rule 14.2
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Rule 14.3
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Rule 14.4
Mandatory - Non-Boolean type expression used in an if statement or the conditional iteration statement of a loop
Rule 15.1
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Rule 15.2
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Rule 15.3
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Rule 15.4
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Rule 15.5
Advisory - A function should only have a single return point
Rule 15.6
Mandatory - Loops, switch and if/else statements must have brackets around their body
Rule 15.7
Mandatory - 'else if' statements must terminate with a final 'else'
Rule 16.1
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Rule 16.2
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Rule 16.3
Mandatory - All cases within switchs must have an unconditional break statement
Rule 16.4
Mandatory - All switch statements must have a default case
Rule 16.5
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Rule 16.6
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Rule 16.7
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Rule 17.1
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Rule 17.2
Mandatory - Functions shall not call themselves, either directly or indirectly
Rule 17.3
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Rule 17.4
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Rule 17.5
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Rule 17.6
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Rule 17.7
Mandatory - The value returned by a function having non-void return type shall be used
Rule 17.8
Advisory - An argument to a function should be treated as read-only
Rule 18.1
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Rule 18.2
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Rule 18.3
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Rule 18.4
Advisory - The +, -, += and -= operators should not be applied to an expression of pointer type
Rule 18.5
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Rule 18.6
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Rule 18.7
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Rule 18.8
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Rule 19.1
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Rule 19.2
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Rule 20.1
Mandatory - Only comments and prepropccesor directives can come before #include statements
Rule 20.2
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Rule 20.3
Mandatory - #include statements must be followed by a filename
Rule 20.4
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Rule 20.5
Advisory - Use of #undef is not permitted
Rule 20.6
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Rule 20.7
Mandatory - Macro expressions must be enclosed in parentheses
Rule 20.8
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Rule 20.9
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Rule 20.10
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Rule 20.11
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Rule 20.12
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Rule 20.13
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Rule 20.14
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Rule 21.1
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Rule 21.2
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Rule 21.3
Mandatory - Memory allocation functions (Eg malloc(), talloc() etc) shall not be used
Rule 21.4
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Rule 21.5
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Rule 21.6
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Rule 21.7
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Rule 21.8
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Rule 21.9
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Rule 21.10
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Rule 21.11
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Rule 21.12
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Rule 22.1
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Rule 22.2
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Rule 22.3
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Rule 22.4
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Rule 22.5
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Rule 22.6
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