SEI CERT C Coding Standard

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Comment: Parasoft C/C++test 2023.1

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Code that does not conform to the common practices presented is difficult to maintain. Bugs can easily arise when modifying helper functions that evaluate true/false or success/failure. Bugs can also easily arise when modifying code that tests for equality using a comparison function that obeys the same conventions as standard library functions such as strcmp.

Recommendation

Severity

Likelihood

Remediation Cost

Priority

Level

EXP20-C

Medium

Probable

Low

P12

L1

Automated Detection

Tool

Version

Checker

Description

Astrée
Include Page
Astrée_V
Astrée_V
 Supported, but no explicit checker

Supported indirectly via MISRA C:2004 Rule 13.2.
Axivion Bauhaus Suite

Include Page
Axivion Bauhaus Suite_V
Axivion Bauhaus Suite_V

CertC-EXP20Fully implemented
Helix QAC

Include Page
Helix QAC_V
Helix QAC_V

C3344, 
C4116
LDRA tool suite
Include Page
LDRA_V
LDRA_V
114 SPartially implemented
Parasoft C/C++test
9.5CODSTA-60Partially implementedPRQA QA-C Include PagePRQA QA-C_vPRQA QA-C_v

3344
4116

 

Include Page
Parasoft_V
Parasoft_V

CERT_C-EXP20-a
CERT_C-EXP20-b

Avoid comparing values with TRUE macro/enum constant using equality operators ("==", "!=")
Tests of a value against zero should be made explicit, unless the operand is effectively Boolean

PC-lint Plus

Include Page
PC-lint Plus_V
PC-lint Plus_V

697

Partially supported: reports comparisons of Boolean values to constants other than 0

Bibliography

[StackOvflw 2009]"Should I Return TRUE/FALSE Values from a C Function?"

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