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| SEI CERT C++ Coding Standard | VOID PRE02-CPP. Macro replacement lists should be parenthesized |
| ISO/IEC TR 24772:2013 | Operator Precedence/Order of Evaluation [JCW] Pre-processor Directives [NMP] |
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| [Plum 1985] | Rule 1-1 |
| [Summit 2005] | Question 10.1 |
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