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Recommendation

Severity

Likelihood

Remediation Cost

Priority

Level

INT07-C

Medium

Probable

Medium

P8

L2

Automated Detection

Tool

Version

Checker

Description

Astrée
Include Page
Astrée_V
Astrée_V

Supported
, but no explicit checker
indirectly via MISRA C:2012 rules 10.1, 10.3 and 10.4.
Axivion Bauhaus Suite

Include Page
Axivion Bauhaus Suite_V
Axivion Bauhaus Suite_V

CertC-INT07
CodeSonar
Include Page
CodeSonar_V
CodeSonar_V
LANG.TYPE.IOTInappropriate operand type
Compass/ROSE



Can detect violations of this recommendation. In particular, it flags any instance of a variable of type char (without a signed or unsigned qualifier) that appears in an arithmetic expression

ECLAIR

Include Page
ECLAIR_V
ECLAIR_V

CC2.INT07

Fully implemented

Helix QAC

Include Page
Helix QAC_V
Helix QAC_V

C1292, C1293, C4401, C4421, C4431, C4441, C4451


Klocwork
Include Page
Klocwork_V
Klocwork_V
PORTING.SIGNED.CHAR
LDRA tool suite
Include Page
LDRA_V
LDRA_V

93 S, 96 S, 101 S, 329 S, 432 S, 458 S

Fully implemented

Parasoft C/C++test
Include Page
Parasoft_V
Parasoft_V
MISRA2004-6_{1,2}

CERT_C-INT07-a
CERT_C-INT07-b

The plain char type shall be used only for the storage and use of character values
signed and unsigned char type shall be used only for the storage and use of numeric values

PC-lint Plus

Include Page
PC-lint Plus_V
PC-lint Plus_V

9112

Fully supported

Polyspace Bug Finder

Include Page
Polyspace Bug Finder_V

Fully implemented

Polyspace Bug Finder

R2016b

_V

CERT C: Rec. INT07-C


Checks for use

Use

of plain char type for

numerical valuePlain char variable in arithmetic operation without explicit signedness

numeric value (rec. fully covered)

Splint
Include Page
Splint_V
Splint_V
PRQA QA-C



RuleChecker

Include Page

PRQA QA-C_vPRQA QA-C_v

1292, 1293, 4401, 4421, 4431, 4441, 4451

RuleChecker_V
RuleChecker_V


Supported indirectly via MISRA C:2012 rules 10.1, 10.3 and 10.4.
Partially implemented
SonarQube C/C++ Plugin
Include Page
SonarQube C/C++ Plugin_V
SonarQube C/C++ Plugin_V
S820

Related Vulnerabilities

Search for vulnerabilities resulting from the violation of this rule on the CERT website.

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