SEI CERT C Coding Standard

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Old Version 61

changes.mady.by.user Carol J. Lallier

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New Version 62

changes.mady.by.user Jill Britton

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Tool

Version

Checker

Description

Compass/ROSE

 

 

Could detect violations of this recommendation by searching for the following pattern:

    • Any expression that calls two functions between the same sequence points
    • Those two functions both modify the value of a static variable
    • That static variable's value is referenced by code following the expression

Coverity

Include Page
Coverity_V
Coverity_V

EVALUATION_ORDER

Can detect the specific instance where a statement contains multiple side effects on the same value with an undefined evaluation order because the statement may behave differently with different compiler flags or different compilers or platforms

LDRA tool suite

Include Page
LDRA_V
LDRA_V

35 D
72 D
74 D
1 Q
134 S

Fully implemented

PRQA QA-C
Include Page
PRQA QA-C_Vv
PRQA QA-C_Vv
3226,3326,0400, 0401, 0402,0403Partially implemented

A programmer could also violate the recommendation using dynamic memory passed to both functions, but that would be extremely difficult to detect using static analysis.

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Related Guidelines

CERT C++ Secure Coding StandardEXP10-CPP. Do not depend on the order of evaluation of subexpressions or the order in which side effects take place
ISO/IEC TR 24772:2013Operator Precedence/Order of Evaluation [JCW]
Side-effects and Order of Evaluation [SAM]
MISRA C:2012Rule 13.5 (required)

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