...
Defining an unnamed namespace within a header file can cause data integrity violations and performance problems but is unlikely to go unnoticed with sufficient testing. One-definition rule violations result in undefined behavior.
Rule | Severity | Likelihood | Detectable | RepairableRemediation Cost | Priority | Level |
|---|---|---|---|---|---|---|
DCL59-CPP | Medium | Unlikely | Yes | NoMedium | P4 | L3 |
Automated Detection
Tool | Version | Checker | Description | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Astrée |
| unnamed-namespace-header | Fully checked | |||||||||
| Axivion Bauhaus Suite |
| CertC++-DCL59 | ||||||||||
| Clang |
| cert-dcl59-cpp | Checked by clang-tidy | |||||||||
| CodeSonar |
| LANG.STRUCT.DECL.ANH | Anonymous Namespace in Header File | |||||||||
| Helix QAC |
| C++2518 | ||||||||||
| Klocwork |
| MISRA.NAMESPACE.UNMD | ||||||||||
| LDRA tool suite |
| 286 S, 512 S | Fully implemented | |||||||||
| Parasoft C/C++test |
| CERT_CPP-DCL59-a | There shall be no unnamed namespaces in header files | |||||||||
| Polyspace Bug Finder |
| CERT C++: DCL59-CPP | Checks for unnamed namespaces in header files (rule fully covered) | |||||||||
| RuleChecker |
| unnamed-namespace-header | Fully checked | |||||||||
| SonarQube C/C++ Plugin |
| UnnamedNamespaceInHeader | PRQA QA-C++||||||||||
| PVS-Studio |
| PRQA QA-C++
| PRQA QA-C++
| 2518V1068 |
Related Vulnerabilities
Search for vulnerabilities resulting from the violation of this rule on the CERT website.
...
Bibliography
| [ISO/IEC 14882-2014] | Subclause 3.2, "One Definition Rule" |
...