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Improper interpretation of return undef can lead to incorrect program flow.
Recommendation | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
EXP00-PL | Low | Unlikely | Low | P3 | L3 |
Automated Detection
Tool | Diagnostic |
|---|---|
Perl::Critic | Subroutines::ProhibitExplicitReturnUndef |
PERL_D102 |
Bibliography
| [Conway 2005] | "Returning Failure," p. 199 |
| [CPAN] | Elliot Shank, Perl-Critic-1.116 ProhibitOneArgSelect |
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