SEI CERT Oracle Coding Standard for Java

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Comment: REM cost reform

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Failure to understand the evaluation order of expressions containing side effects can result in unexpected output.

Rule

Severity

Likelihood

Detectable

RepairableRemediation Cost

Priority

Level

EXP05-J

Low

Unlikely

Yes

NoMedium

P2

L3

Automated Detection

Detection of all expressions involving both side effects and multiple operator precedence levels is straightforward. Determining the correctness of such uses is infeasible in the general case; heuristic warnings could be useful.

ToolVersionCheckerDescription
Parasoft Jtest

Include Page
Parasoft_V
Parasoft_V

CODSTACERT.READEXP05.CIDAvoid using increment or decrement operators in nested expressions
PVS-Studio

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PVS-Studio_V
PVS-Studio_V

V6044
SonarQube
Include Page
SonarQube_V
SonarQube_V
S881Increment (++) and decrement (--) operators should not be used in a method call or mixed with other operators in an expression

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SEI CERT C Coding Standard

EXP30-C. Do not depend on the order of evaluation for side effects

SEI CERT C++ Coding Standard

EXP50-CPP. Do not depend on the order of evaluation for side effects

ISO/IEC TR 24772:2010

Side Effects and Order of Evaluation [SAM]

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