if you are certain that you're calling the function correctly, you may put
an ampersand before the name to avoid the warning. See L<perlsub>.
-=item %s argument is not a HASH element
+=item %s argument is not a HASH or ARRAY element
-(F) The argument to exists() must be a hash element, such as
+(F) The argument to exists() must be a hash or array element, such as:
$foo{$bar}
- $ref->[12]->{"susie"}
+ $ref->[12]->["susie"]
-=item %s argument is not a HASH element or slice
+=item %s argument is not a HASH or ARRAY element or slice
-(F) The argument to delete() must be either a hash element, such as
+(F) The argument to delete() must be either a hash or array element, such as:
$foo{$bar}
- $ref->[12]->{"susie"}
+ $ref->[12]->["susie"]
-or a hash slice, such as
+or a hash or array slice, such as:
- @foo{$bar, $baz, $xyzzy}
+ @foo[$bar, $baz, $xyzzy]
@{$ref->[12]}{"susie", "queue"}
+=item %s argument is not a subroutine name
+
+(F) The argument to exists() for C<exists &sub> must be a subroutine
+name, and not a subroutine call. C<exists &sub()> will generate this error.
+
=item %s did not return a true value
(F) A required (or used) file must return a true value to indicate that
(F) You wrote C<require E<lt>fileE<gt>> when you should have written
C<require 'file'>.
-=item accept() on closed fd
+=item accept() on closed socket
(W) You tried to do an accept on a closed socket. Did you forget to check
the return value of your socket() call? See L<perlfunc/accept>.
(4294967295) and therefore non-portable between systems. See
L<perlport> for more on portability concerns.
-=item bind() on closed fd
+=item bind() on closed socket
(W) You tried to do a bind on a closed socket. Did you forget to check
the return value of your socket() call? See L<perlfunc/bind>.
reference of the type needed. You can use the ref() function to
test the type of the reference, if need be.
-=item Can't use \1 to mean $1 in expression
+=item Can't use \%c to mean $%c in expression
(W) In an ordinary expression, backslash is a unary operator that creates
a reference to its argument. The use of backslash to indicate a backreference
Trying to do this in ordinary Perl code produces a value that prints
out looking like SCALAR(0xdecaf). Use the $1 form instead.
-=item Can't use bareword ("%s") as %s ref while \"strict refs\" in use
+=item Can't use bareword ("%s") as %s ref while "strict refs" in use
(F) Only hard references are allowed by "strict refs". Symbolic references
are disallowed. See L<perlref>.
expression so that it is simpler or backtracks less. (See L<perlbook>
for information on I<Mastering Regular Expressions>.)
-=item connect() on closed fd
+=item connect() on closed socket
(W) You tried to do a connect on a closed socket. Did you forget to check
the return value of your socket() call? See L<perlfunc/connect>.
because if it did, it'd feel morally obligated to return every hostname
on the Internet.
-=item get{sock,peer}name() on closed fd
+=item get%sname() on closed socket
(W) You tried to get a socket or peer socket name on a closed socket.
Did you forget to check the return value of your socket() call?
(F) While under the C<use filetest> pragma, switching the real and
effective uids or gids failed.
-=item listen() on closed fd
+=item listen() on closed socket
(W) You tried to do a listen on a closed socket. Did you forget to check
the return value of your socket() call? See L<perlfunc/listen>.
See Server error.
-=item print on closed filehandle %s
+=item print() on closed filehandle %s
(W) The filehandle you're printing on got itself closed sometime before now.
Check your logic flow.
-=item printf on closed filehandle %s
+=item printf() on closed filehandle %s
(W) The filehandle you're writing to got itself closed sometime before now.
Check your logic flow.
One possible workaround is to force Perl to use magical string
increment by prepending "0" to your numbers.
-=item Read on closed filehandle %s
+=item readline() on closed filehandle %s
(W) The filehandle you're reading from got itself closed sometime before now.
Check your logic flow.
(W) A nearby syntax error was probably caused by a missing semicolon,
or possibly some other missing operator, such as a comma.
-=item Send on closed socket
+=item send() on closed socket
-(W) The filehandle you're sending to got itself closed sometime before now.
+(W) The socket you're sending to got itself closed sometime before now.
Check your logic flow.
=item Sequence (? incomplete
(F) You don't have System V shared memory IPC on your system.
-=item shutdown() on closed fd
+=item shutdown() on closed socket
(W) You tried to do a shutdown on a closed socket. Seems a bit superfluous.
machine. In some machines the functionality can exist but be
unconfigured. Consult your system support.
-=item Syswrite on closed filehandle
+=item syswrite() on closed filehandle
(W) The filehandle you're writing to got itself closed sometime before now.
Check your logic flow.
So put in parentheses to say what you really mean.
-=item Write on closed filehandle %s
+=item write() on closed filehandle %s
(W) The filehandle you're writing to got itself closed sometime before now.
Check your logic flow.
will try to call the subroutine when the assignment is executed, which is
probably not what you want. (If it IS what you want, put an & in front.)
-=item [gs]etsockopt() on closed fd
+=item %cetsockopt() on closed fd
(W) You tried to get or set a socket option on a closed socket.
Did you forget to check the return value of your socket() call?
-See L<perlfunc/getsockopt>.
+See L<perlfunc/getsockopt> and L<perlfunc/setsockopt>.
=item \1 better written as $1
https://perl5.git.perl.org / perl5.git / blobdiff