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In this noncompliant code example, a bitwise & operator operator is used with the results of an two equality-expressionexpressions:
| Code Block | ||||
|---|---|---|---|---|
| ||||
if (!(getuid() == 0 & geteuidgetgid() == 0)) { /* ... */ } |
Compliant Solution
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| Code Block | ||||
|---|---|---|---|---|
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if (!(getuid() == 0 && geteuidgetgid() == 0)) { /* ... */ } |
Risk Assessment
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Tool | Version | Checker | Description | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Astrée |
| inappropriate-bool | Supported indirectly via MISRA C:2012 Rule 10.1bitwise-operator-with-boolean-like-operand | Fully checked | |||||||||||||||||
| Axivion Bauhaus Suite |
| CertC-EXP46 | |||||||||||||||||||
| CodeSonar |
| LANG.TYPE.IOT | Inappropriate operand type | ||||||||||||||||||
| CONSTANT_EXPRESSION_RESULT | Partially implemented | |||||||||||||||||||
| Cppcheck |
| cert.py |
| bitwiseOnBoolean | |||||||||||||||||
| Cppcheck Premium |
| bitwiseOnBoolean | |||||||||||||||||||
| Helix QAC |
| C3344, C4502 C++3709 Detected by the addon cert.py | |||||||||||||||||||
| Klocwork |
| MISRA.LOGIC.OPERATOR.NOT_BOOL | |||||||||||||||||||
| LDRA tool suite |
| 136 S | Fully Implemented | ||||||||||||||||||
| Parasoft C/C++test |
| CERT_C-EXP46- | ab | The operands of logical operators (&&, || and !) should be effectively BooleanExpressions that are effectively Boolean should not be used as operands to operators other than (&&, ||, !, =, ==, !=, ?:) | |||||||||||||||||
| PC-lint Plus |
| 514 | Fully supported | ||||||||||||||||||
| Polyspace Bug Finder |
| MISRA CERT C: | 2012 Rule 10.1Operands shall not be of an inappropriate essential type | PRQA QA-C | |||||||||||||||||
| Include Page | PRQA QA-C_v | PRQA QA-C_v | 3344,4502 | PRQA CA-C++ | |||||||||||||||||
| Include Page | cplusplus:PRQA QA-C++_V | cplusplus:PRQA QA-C++_V | Rule EXP46-C | Checks for bitwise operations on boolean operands (rule fully covered) | |||||||||||||||||
| PVS-Studio |
| V564, V1015 | |||||||||||||||||||
| RuleChecker |
| bitwise-operator-with-boolean-like-operand | Fully checked | ||||||||||||||||||
| Security Reviewer - Static Reviewer |
| C73 | Fully implemented | 3709 | PVS-Studio | ||||||||||||||||
| Include Page | PVS-Studio_V | PVS-Studio_V | V564 | RuleChecker | |||||||||||||||||
| Include Page | RuleChecker_V | RuleChecker_V | inappropriate-bool | Supported indirectly via MISRA C:2012 Rule 10.1 |
Related Guidelines
Key here (explains table format and definitions)
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