SEI CERT Perl Coding Standard

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Old Version 23

changes.mady.by.user Will Snavely

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New Version 24

changes.mady.by.user Sandy Shrum

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Code Block
bgColor#ccccff
langperl
sub read_users {
  open( my $filehandle, "<", "/etc/shadow")
    or return;
  my @users = <$filehandle>;
  return @users;
}

Exceptions

EXP00-PL-EX1: This recommendation applies specifically to functions called in a list context. If you can guarantee that some function will never be called in a list context, then that function may return undef.

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