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This compliant solution uses equivalent code with no side effects and performs not more than one write per expression. The resulting expression can be reordered without concern for the evaluation order of the component expressions, making the code easier to understand and maintain.

int number = 17;

final int authnum = get();
number = ((31 * (number + 1)) * authnum) + (authnum > threshold[0] ? 0 : -2);

Exceptions

EXP05-EX0: The increment and decrement operators (++) and (--) read a numeric variable, and then assign a new value to the variable. These are well-understood and are an exception to this rule.

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      02. Expressions (EXP)      EXP06-J. Do not use side-effecting expressions in assertionsImage Added