The logical negation operator should not be applied 3 or more times in a row

• TRIPLE_NEGATION_OPERATOR
• Code Quality
• Low
• No tags

This rule applies when the logical negation operator (!) is applied 3 or more times in a row.

A triple negation like !!!e is equivalent to the single negation !e.

Therefore, it is recommended to remove the unnecessary negation operations for readability and maintainability.

Noncompliant Code Example

// Example 1
foo(!!!arg); // TRIPLE_NEGATION_OPERATOR alarm because 3 negations are used.

// Example 2
if ((cond1 && !(!!(cond2 && !cond3))) || cond4) { // TRIPLE_NEGATION_OPERATOR alarm because 3 negations are used.
    bar();
}

Compliant Code Example

// Example 1
foo(!arg);

// Example 2
if ((cond1 && !(cond2 && !cond3)) || cond4) {
    bar();
}

Version

This rule was introduced in DeepScan 1.19.0.