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Compliant Solution (std::reference_wrapper)
This compliant solution wraps uses std::ref to wrap the predicate in a std::reference_wrapper<T> object, ensuring that copies of the wrapper object all refer to the same underlying predicate object.
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Using a predicate function object that contains state can produce unexpected values.
Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
CTR58-CPP | Low | Likely | High | P3 | L3 |
Automated Detection
Tool | Version | Checker | Description |
|---|
| Helix QAC |
| C++3225, C++3226, C++3227, C++3228, C++3229, C++3230, C++3231, C++3232, C++3233, C++3234 | |||||||
| Parasoft C/C++test |
| CERT_CPP-CTR58-a | Make predicates const pure functions | ||||||
| Polyspace Bug Finder |
| CERT C++: CTR58-CPP | Checks for function object that modifies its state (rule fully covered). |
Related Vulnerabilities
Search for vulnerabilities resulting from the violation of this rule on the CERT website.
Bibliography
| [ISO/IEC 14882-2014] | Subclause 25.1, "General" |
| [Meyers 2001] | Item 39, "Make Predicates Pure Functions" |
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