3 perldiag - various Perl diagnostics
7 These messages are classified as follows (listed in increasing order of
10 (W) A warning (optional).
11 (D) A deprecation (optional).
12 (S) A severe warning (mandatory).
13 (F) A fatal error (trappable).
14 (P) An internal error you should never see (trappable).
15 (X) A very fatal error (non-trappable).
16 (A) An alien error message (not generated by Perl).
18 Optional warnings are enabled by using the B<-w> switch. Warnings may
19 be captured by setting C<$SIG{__WARN__}> to a reference to a routine that will be
20 called on each warning instead of printing it. See L<perlvar>.
21 Trappable errors may be trapped using the eval operator. See
24 Some of these messages are generic. Spots that vary are denoted with a %s,
25 just as in a printf format. Note that some messages start with a %s!
26 The symbols C<"%-?@> sort before the letters, while C<[> and C<\> sort after.
30 =item "my" variable %s can't be in a package
32 (F) Lexically scoped variables aren't in a package, so it doesn't make sense
33 to try to declare one with a package qualifier on the front. Use local()
34 if you want to localize a package variable.
36 =item "my" variable %s masks earlier declaration in same scope
38 (S) A lexical variable has been redeclared in the same scope, effectively
39 eliminating all access to the previous instance. This is almost always
40 a typographical error. Note that the earlier variable will still exist
41 until the end of the scope or until all closure referents to it are
44 =item "no" not allowed in expression
46 (F) The "no" keyword is recognized and executed at compile time, and returns
47 no useful value. See L<perlmod>.
49 =item "use" not allowed in expression
51 (F) The "use" keyword is recognized and executed at compile time, and returns
52 no useful value. See L<perlmod>.
54 =item % may only be used in unpack
56 (F) You can't pack a string by supplying a checksum, since the
57 checksumming process loses information, and you can't go the other
58 way. See L<perlfunc/unpack>.
60 =item %s (...) interpreted as function
62 (W) You've run afoul of the rule that says that any list operator followed
63 by parentheses turns into a function, with all the list operators arguments
64 found inside the parens. See L<perlop/Terms and List Operators (Leftward)>.
66 =item %s argument is not a HASH element
68 (F) The argument to delete() or exists() must be a hash element, such as
73 =item %s did not return a true value
75 (F) A required (or used) file must return a true value to indicate that
76 it compiled correctly and ran its initialization code correctly. It's
77 traditional to end such a file with a "1;", though any true value would
78 do. See L<perlfunc/require>.
80 =item %s found where operator expected
82 (S) The Perl lexer knows whether to expect a term or an operator. If it
83 sees what it knows to be a term when it was expecting to see an operator,
84 it gives you this warning. Usually it indicates that an operator or
85 delimiter was omitted, such as a semicolon.
87 =item %s had compilation errors.
89 (F) The final summary message when a C<perl -c> fails.
91 =item %s has too many errors.
93 (F) The parser has given up trying to parse the program after 10 errors.
94 Further error messages would likely be uninformative.
96 =item %s matches null string many times
98 (W) The pattern you've specified would be an infinite loop if the
99 regular expression engine didn't specifically check for that. See L<perlre>.
101 =item %s never introduced
103 (S) The symbol in question was declared but somehow went out of scope
104 before it could possibly have been used.
108 (F) The final summary message when a C<perl -c> succeeds.
110 =item %s: Command not found.
112 (A) You've accidentally run your script through B<csh> instead
113 of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
116 =item %s: Expression syntax.
118 (A) You've accidentally run your script through B<csh> instead
119 of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
122 =item %s: Undefined variable.
124 (A) You've accidentally run your script through B<csh> instead
125 of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
130 (A) You've accidentally run your script through the Bourne shell
131 instead of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
134 =item B<-P> not allowed for setuid/setgid script
136 (F) The script would have to be opened by the C preprocessor by name,
137 which provides a race condition that breaks security.
139 =item C<-T> and C<-B> not implemented on filehandles
141 (F) Perl can't peek at the stdio buffer of filehandles when it doesn't
142 know about your kind of stdio. You'll have to use a filename instead.
144 =item 500 Server error
148 =item ?+* follows nothing in regexp
150 (F) You started a regular expression with a quantifier. Backslash it
151 if you meant it literally. See L<perlre>.
153 =item @ outside of string
155 (F) You had a pack template that specified an absolute position outside
156 the string being unpacked. See L<perlfunc/pack>.
158 =item accept() on closed fd
160 (W) You tried to do an accept on a closed socket. Did you forget to check
161 the return value of your socket() call? See L<perlfunc/accept>.
163 =item Allocation too large: %lx
165 (X) You can't allocate more than 64K on an MSDOS machine.
167 =item Allocation too large
169 (F) You can't allocate more than 2^31+"small amount" bytes.
171 =item Arg too short for msgsnd
173 (F) msgsnd() requires a string at least as long as sizeof(long).
175 =item Ambiguous use of %s resolved as %s
177 (W)(S) You said something that may not be interpreted the way
178 you thought. Normally it's pretty easy to disambiguate it by supplying
179 a missing quote, operator, paren pair or declaration.
181 =item Args must match #! line
183 (F) The setuid emulator requires that the arguments Perl was invoked
184 with match the arguments specified on the #! line.
186 =item Argument "%s" isn't numeric
188 (W) The indicated string was fed as an argument to an operator that
189 expected a numeric value instead. If you're fortunate the message
190 will identify which operator was so unfortunate.
192 =item Array @%s missing the @ in argument %d of %s()
194 (D) Really old Perl let you omit the @ on array names in some spots. This
195 is now heavily deprecated.
197 =item assertion botched: %s
199 (P) The malloc package that comes with Perl had an internal failure.
201 =item Assertion failed: file "%s"
203 (P) A general assertion failed. The file in question must be examined.
205 =item Assignment to both a list and a scalar
207 (F) If you assign to a conditional operator, the 2nd and 3rd arguments
208 must either both be scalars or both be lists. Otherwise Perl won't
209 know which context to supply to the right side.
211 =item Attempt to free non-arena SV: 0x%lx
213 (P) All SV objects are supposed to be allocated from arenas that will
214 be garbage collected on exit. An SV was discovered to be outside any
217 =item Attempt to free non-existent shared string
219 (P) Perl maintains a reference counted internal table of strings to
220 optimize the storage and access of hash keys and other strings. This
221 indicates someone tried to decrement the reference count of a string
222 that can no longer be found in the table.
224 =item Attempt to free temp prematurely
226 (W) Mortalized values are supposed to be freed by the free_tmps()
227 routine. This indicates that something else is freeing the SV before
228 the free_tmps() routine gets a chance, which means that the free_tmps()
229 routine will be freeing an unreferenced scalar when it does try to free
232 =item Attempt to free unreferenced glob pointers
234 (P) The reference counts got screwed up on symbol aliases.
236 =item Attempt to free unreferenced scalar
238 (W) Perl went to decrement the reference count of a scalar to see if it
239 would go to 0, and discovered that it had already gone to 0 earlier,
240 and should have been freed, and in fact, probably was freed. This
241 could indicate that SvREFCNT_dec() was called too many times, or that
242 SvREFCNT_inc() was called too few times, or that the SV was mortalized
243 when it shouldn't have been, or that memory has been corrupted.
245 =item Attempt to use reference as lvalue in substr
247 (W) You supplied a reference as the first argument to substr() used
248 as an lvalue, which is pretty strange. Perhaps you forgot to
249 dereference it first. See L<perlfunc/substr>.
251 =item Bad arg length for %s, is %d, should be %d
253 (F) You passed a buffer of the wrong size to one of msgctl(), semctl() or
254 shmctl(). In C parlance, the correct sizes are, respectively,
255 S<sizeof(struct msqid_ds *)>, S<sizeof(struct semid_ds *)> and
256 S<sizeof(struct shmid_ds *)>.
258 =item Bad associative array
260 (P) One of the internal hash routines was passed a null HV pointer.
262 =item Bad filehandle: %s
264 (F) A symbol was passed to something wanting a filehandle, but the symbol
265 has no filehandle associated with it. Perhaps you didn't do an open(), or
266 did it in another package.
268 =item Bad free() ignored
270 (S) An internal routine called free() on something that had never been
271 malloc()ed in the first place. Mandatory, but can be disabled by
272 setting environment variable C<PERL_BADFREE> to 1.
274 This message can be quite often seen with DB_File on systems with
275 "hard" dynamic linking, like C<AIX> and C<OS/2>. It is a bug of
276 C<Berkeley DB> which is left unnoticed if C<DB> uses I<forgiving>
279 =item Bad name after %s::
281 (F) You started to name a symbol by using a package prefix, and then didn't
282 finish the symbol. In particular, you can't interpolate outside of quotes,
291 $sym = "mypack::$var";
293 =item Bad symbol for array
295 (P) An internal request asked to add an array entry to something that
296 wasn't a symbol table entry.
298 =item Bad symbol for filehandle
300 (P) An internal request asked to add a filehandle entry to something that
301 wasn't a symbol table entry.
303 =item Bad symbol for hash
305 (P) An internal request asked to add a hash entry to something that
306 wasn't a symbol table entry.
308 =item Badly placed ()'s
310 (A) You've accidentally run your script through B<csh> instead
311 of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
314 =item BEGIN failed--compilation aborted
316 (F) An untrapped exception was raised while executing a BEGIN subroutine.
317 Compilation stops immediately and the interpreter is exited.
319 =item bind() on closed fd
321 (W) You tried to do a bind on a closed socket. Did you forget to check
322 the return value of your socket() call? See L<perlfunc/bind>.
324 =item Bizarre copy of %s in %s
326 (P) Perl detected an attempt to copy an internal value that is not copiable.
328 =item Callback called exit
330 (F) A subroutine invoked from an external package via perl_call_sv()
331 exited by calling exit.
333 =item Can't "last" outside a block
335 (F) A "last" statement was executed to break out of the current block,
336 except that there's this itty bitty problem called there isn't a
337 current block. Note that an "if" or "else" block doesn't count as a
338 "loopish" block. You can usually double the curlies to get the same
339 effect though, since the inner curlies will be considered a block
340 that loops once. See L<perlfunc/last>.
342 =item Can't "next" outside a block
344 (F) A "next" statement was executed to reiterate the current block, but
345 there isn't a current block. Note that an "if" or "else" block doesn't
346 count as a "loopish" block. You can usually double the curlies to get
347 the same effect though, since the inner curlies will be considered a block
348 that loops once. See L<perlfunc/last>.
350 =item Can't "redo" outside a block
352 (F) A "redo" statement was executed to restart the current block, but
353 there isn't a current block. Note that an "if" or "else" block doesn't
354 count as a "loopish" block. You can usually double the curlies to get
355 the same effect though, since the inner curlies will be considered a block
356 that loops once. See L<perlfunc/last>.
358 =item Can't bless non-reference value
360 (F) Only hard references may be blessed. This is how Perl "enforces"
361 encapsulation of objects. See L<perlobj>.
363 =item Can't break at that line
365 (S) A warning intended for while running within the debugger, indicating
366 the line number specified wasn't the location of a statement that could
369 =item Can't call method "%s" in empty package "%s"
371 (F) You called a method correctly, and it correctly indicated a package
372 functioning as a class, but that package doesn't have ANYTHING defined
373 in it, let alone methods. See L<perlobj>.
375 =item Can't call method "%s" on unblessed reference
377 (F) A method call must know what package it's supposed to run in. It
378 ordinarily finds this out from the object reference you supply, but
379 you didn't supply an object reference in this case. A reference isn't
380 an object reference until it has been blessed. See L<perlobj>.
382 =item Can't call method "%s" without a package or object reference
384 (F) You used the syntax of a method call, but the slot filled by the
385 object reference or package name contains an expression that returns
386 neither an object reference nor a package name. (Perhaps it's null?)
387 Something like this will reproduce the error:
390 process $BADREF 1,2,3;
391 $BADREF->process(1,2,3);
393 =item Can't chdir to %s
395 (F) You called C<perl -x/foo/bar>, but C</foo/bar> is not a directory
396 that you can chdir to, possibly because it doesn't exist.
398 =item Can't coerce %s to integer in %s
400 (F) Certain types of SVs, in particular real symbol table entries
401 (typeglobs), can't be forced to stop being what they are. So you can't
411 but then $foo no longer contains a glob.
413 =item Can't coerce %s to number in %s
415 (F) Certain types of SVs, in particular real symbol table entries
416 (typeglobs), can't be forced to stop being what they are.
418 =item Can't coerce %s to string in %s
420 (F) Certain types of SVs, in particular real symbol table entries
421 (typeglobs), can't be forced to stop being what they are.
423 =item Can't create pipe mailbox
425 (P) An error peculiar to VMS. The process is suffering from exhausted quotas
426 or other plumbing problems.
428 =item Can't declare %s in my
430 (F) Only scalar, array and hash variables may be declared as lexical variables.
431 They must have ordinary identifiers as names.
433 =item Can't do inplace edit on %s: %s
435 (S) The creation of the new file failed for the indicated reason.
437 =item Can't do inplace edit without backup
439 (F) You're on a system such as MSDOS that gets confused if you try reading
440 from a deleted (but still opened) file. You have to say B<-i>C<.bak>, or some
443 =item Can't do inplace edit: %s E<gt> 14 characters
445 (S) There isn't enough room in the filename to make a backup name for the file.
447 =item Can't do inplace edit: %s is not a regular file
449 (S) You tried to use the B<-i> switch on a special file, such as a file in
450 /dev, or a FIFO. The file was ignored.
452 =item Can't do setegid!
454 (P) The setegid() call failed for some reason in the setuid emulator
457 =item Can't do seteuid!
459 (P) The setuid emulator of suidperl failed for some reason.
461 =item Can't do setuid
463 (F) This typically means that ordinary perl tried to exec suidperl to
464 do setuid emulation, but couldn't exec it. It looks for a name of the
465 form sperl5.000 in the same directory that the perl executable resides
466 under the name perl5.000, typically /usr/local/bin on Unix machines.
467 If the file is there, check the execute permissions. If it isn't, ask
468 your sysadmin why he and/or she removed it.
470 =item Can't do waitpid with flags
472 (F) This machine doesn't have either waitpid() or wait4(), so only waitpid()
473 without flags is emulated.
475 =item Can't do {n,m} with n E<gt> m
477 (F) Minima must be less than or equal to maxima. If you really want
478 your regexp to match something 0 times, just put {0}. See L<perlre>.
480 =item Can't emulate -%s on #! line
482 (F) The #! line specifies a switch that doesn't make sense at this point.
483 For example, it'd be kind of silly to put a B<-x> on the #! line.
485 =item Can't exec "%s": %s
487 (W) An system(), exec() or piped open call could not execute the named
488 program for the indicated reason. Typical reasons include: the permissions
489 were wrong on the file, the file wasn't found in C<$ENV{PATH}>, the
490 executable in question was compiled for another architecture, or the
491 #! line in a script points to an interpreter that can't be run for
492 similar reasons. (Or maybe your system doesn't support #! at all.)
496 (F) Perl was trying to execute the indicated program for you because that's
497 what the #! line said. If that's not what you wanted, you may need to
498 mention "perl" on the #! line somewhere.
500 =item Can't execute %s
502 (F) You used the B<-S> switch, but the script to execute could not be found
503 in the PATH, or at least not with the correct permissions.
505 =item Can't find label %s
507 (F) You said to goto a label that isn't mentioned anywhere that it's possible
508 for us to go to. See L<perlfunc/goto>.
510 =item Can't find string terminator %s anywhere before EOF
512 (F) Perl strings can stretch over multiple lines. This message means that
513 the closing delimiter was omitted. Since bracketed quotes count nesting
514 levels, the following is missing its final parenthesis:
516 print q(The character '(' starts a side comment.)
520 (F) A fatal error occurred while trying to fork while opening a pipeline.
522 =item Unsupported function fork
524 (F) Your version of executable does not support forking.
526 Note that under some systems, like OS/2, there may be different flavors of
527 Perl executables, some of which may support fork, some not. Try changing
528 the name you call Perl by to C<perl_>, C<perl__>, and so on.
530 =item Can't get filespec - stale stat buffer?
532 (S) A warning peculiar to VMS. This arises because of the difference between
533 access checks under VMS and under the Unix model Perl assumes. Under VMS,
534 access checks are done by filename, rather than by bits in the stat buffer, so
535 that ACLs and other protections can be taken into account. Unfortunately, Perl
536 assumes that the stat buffer contains all the necessary information, and passes
537 it, instead of the filespec, to the access checking routine. It will try to
538 retrieve the filespec using the device name and FID present in the stat buffer,
539 but this works only if you haven't made a subsequent call to the CRTL stat()
540 routine, since the device name is overwritten with each call. If this warning
541 appears, the name lookup failed, and the access checking routine gave up and
542 returned FALSE, just to be conservative. (Note: The access checking routine
543 knows about the Perl C<stat> operator and file tests, so you shouldn't ever
544 see this warning in response to a Perl command; it arises only if some internal
545 code takes stat buffers lightly.)
547 =item Can't get pipe mailbox device name
549 (P) An error peculiar to VMS. After creating a mailbox to act as a pipe, Perl
550 can't retrieve its name for later use.
552 =item Can't get SYSGEN parameter value for MAXBUF
554 (P) An error peculiar to VMS. Perl asked $GETSYI how big you want your
555 mailbox buffers to be, and didn't get an answer.
557 =item Can't goto subroutine outside a subroutine
559 (F) The deeply magical "goto subroutine" call can only replace one subroutine
560 call for another. It can't manufacture one out of whole cloth. In general
561 you should only be calling it out of an AUTOLOAD routine anyway. See
564 =item Can't localize a reference
566 (F) You said something like C<local $$ref>, which is not allowed because
567 the compiler can't determine whether $ref will end up pointing to anything
568 with a symbol table entry, and a symbol table entry is necessary to
571 =item Can't localize lexical variable %s
573 (F) You used local on a variable name that was previously declared as a
574 lexical variable using "my". This is not allowed. If you want to
575 localize a package variable of the same name, qualify it with the
578 =item Can't locate %s in @INC
580 (F) You said to do (or require, or use) a file that couldn't be found
581 in any of the libraries mentioned in @INC. Perhaps you need to set
582 the PERL5LIB environment variable to say where the extra library is,
583 or maybe the script needs to add the library name to @INC. Or maybe
584 you just misspelled the name of the file. See L<perlfunc/require>.
586 =item Can't locate object method "%s" via package "%s"
588 (F) You called a method correctly, and it correctly indicated a package
589 functioning as a class, but that package doesn't define that particular
590 method, nor does any of its base classes. See L<perlobj>.
592 =item Can't locate package %s for @%s::ISA
594 (W) The @ISA array contained the name of another package that doesn't seem
599 (F) The mktemp() routine failed for some reason while trying to process
600 a B<-e> switch. Maybe your /tmp partition is full, or clobbered.
602 =item Can't modify %s in %s
604 (F) You aren't allowed to assign to the item indicated, or otherwise try to
605 change it, such as with an autoincrement.
607 =item Can't modify non-existent substring
609 (P) The internal routine that does assignment to a substr() was handed
612 =item Can't msgrcv to readonly var
614 (F) The target of a msgrcv must be modifiable in order to be used as a receive
617 =item Can't open %s: %s
619 (S) An inplace edit couldn't open the original file for the indicated reason.
620 Usually this is because you don't have read permission for the file.
622 =item Can't open bidirectional pipe
624 (W) You tried to say C<open(CMD, "|cmd|")>, which is not supported. You can
625 try any of several modules in the Perl library to do this, such as
626 "open2.pl". Alternately, direct the pipe's output to a file using "E<gt>",
627 and then read it in under a different file handle.
629 =item Can't open error file %s as stderr
631 (F) An error peculiar to VMS. Perl does its own command line redirection, and
632 couldn't open the file specified after '2E<gt>' or '2E<gt>E<gt>' on the
633 command line for writing.
635 =item Can't open input file %s as stdin
637 (F) An error peculiar to VMS. Perl does its own command line redirection, and
638 couldn't open the file specified after 'E<lt>' on the command line for reading.
640 =item Can't open output file %s as stdout
642 (F) An error peculiar to VMS. Perl does its own command line redirection, and
643 couldn't open the file specified after 'E<gt>' or 'E<gt>E<gt>' on the command
646 =item Can't open output pipe (name: %s)
648 (P) An error peculiar to VMS. Perl does its own command line redirection, and
649 couldn't open the pipe into which to send data destined for stdout.
651 =item Can't open perl script "%s": %s
653 (F) The script you specified can't be opened for the indicated reason.
655 =item Can't rename %s to %s: %s, skipping file
657 (S) The rename done by the B<-i> switch failed for some reason, probably because
658 you don't have write permission to the directory.
660 =item Can't reopen input pipe (name: %s) in binary mode
662 (P) An error peculiar to VMS. Perl thought stdin was a pipe, and tried to
663 reopen it to accept binary data. Alas, it failed.
665 =item Can't reswap uid and euid
667 (P) The setreuid() call failed for some reason in the setuid emulator
670 =item Can't return outside a subroutine
672 (F) The return statement was executed in mainline code, that is, where
673 there was no subroutine call to return out of. See L<perlsub>.
675 =item Can't stat script "%s"
677 (P) For some reason you can't fstat() the script even though you have
678 it open already. Bizarre.
680 =item Can't swap uid and euid
682 (P) The setreuid() call failed for some reason in the setuid emulator
685 =item Can't take log of %g
687 (F) Logarithms are only defined on positive real numbers.
689 =item Can't take sqrt of %g
691 (F) For ordinary real numbers, you can't take the square root of a
692 negative number. There's a Complex package available for Perl, though,
693 if you really want to do that.
695 =item Can't undef active subroutine
697 (F) You can't undefine a routine that's currently running. You can,
698 however, redefine it while it's running, and you can even undef the
699 redefined subroutine while the old routine is running. Go figure.
703 (F) You tried to unshift an "unreal" array that can't be unshifted, such
704 as the main Perl stack.
706 =item Can't upgrade that kind of scalar
708 (P) The internal sv_upgrade routine adds "members" to an SV, making
709 it into a more specialized kind of SV. The top several SV types are
710 so specialized, however, that they cannot be interconverted. This
711 message indicates that such a conversion was attempted.
713 =item Can't upgrade to undef
715 (P) The undefined SV is the bottom of the totem pole, in the scheme
716 of upgradability. Upgrading to undef indicates an error in the
717 code calling sv_upgrade.
719 =item Can't use "my %s" in sort comparison
721 (F) The global variables $a and $b are reserved for sort comparisons.
722 You mentioned $a or $b in the same line as the E<lt>=E<gt> or cmp operator,
723 and the variable had earlier been declared as a lexical variable.
724 Either qualify the sort variable with the package name, or rename the
727 =item Can't use %s for loop variable
729 (F) Only a simple scalar variable may be used as a loop variable on a foreach.
731 =item Can't use %s ref as %s ref
733 (F) You've mixed up your reference types. You have to dereference a
734 reference of the type needed. You can use the ref() function to
735 test the type of the reference, if need be.
737 =item Can't use \1 to mean $1 in expression
739 (W) In an ordinary expression, backslash is a unary operator that creates
740 a reference to its argument. The use of backslash to indicate a backreference
741 to a matched substring is only valid as part of a regular expression pattern.
742 Trying to do this in ordinary Perl code produces a value that prints
743 out looking like SCALAR(0xdecaf). Use the $1 form instead.
745 =item Can't use string ("%s") as %s ref while "strict refs" in use
747 (F) Only hard references are allowed by "strict refs". Symbolic references
748 are disallowed. See L<perlref>.
750 =item Can't use an undefined value as %s reference
752 (F) A value used as either a hard reference or a symbolic reference must
753 be a defined value. This helps to de-lurk some insidious errors.
755 =item Can't use global %s in "my"
757 (F) You tried to declare a magical variable as a lexical variable. This is
758 not allowed, because the magic can only be tied to one location (namely
759 the global variable) and it would be incredibly confusing to have
760 variables in your program that looked like magical variables but
763 =item Can't use subscript on %s
765 (F) The compiler tried to interpret a bracketed expression as a
766 subscript. But to the left of the brackets was an expression that
767 didn't look like an array reference, or anything else subscriptable.
769 =item Can't write to temp file for B<-e>: %s
771 (F) The write routine failed for some reason while trying to process
772 a B<-e> switch. Maybe your /tmp partition is full, or clobbered.
774 =item Can't x= to readonly value
776 (F) You tried to repeat a constant value (often the undefined value) with
777 an assignment operator, which implies modifying the value itself.
778 Perhaps you need to copy the value to a temporary, and repeat that.
780 =item Cannot open temporary file
782 (F) The create routine failed for some reason while trying to process
783 a B<-e> switch. Maybe your /tmp partition is full, or clobbered.
785 =item chmod: mode argument is missing initial 0
787 (W) A novice will sometimes say
791 not realizing that 777 will be interpreted as a decimal number, equivalent
792 to 01411. Octal constants are introduced with a leading 0 in Perl, as in C.
794 =item Close on unopened file E<lt>%sE<gt>
796 (W) You tried to close a filehandle that was never opened.
798 =item connect() on closed fd
800 (W) You tried to do a connect on a closed socket. Did you forget to check
801 the return value of your socket() call? See L<perlfunc/connect>.
803 =item Corrupt malloc ptr 0x%lx at 0x%lx
805 (P) The malloc package that comes with Perl had an internal failure.
807 =item corrupted regexp pointers
809 (P) The regular expression engine got confused by what the regular
810 expression compiler gave it.
812 =item corrupted regexp program
814 (P) The regular expression engine got passed a regexp program without
815 a valid magic number.
817 =item Deep recursion on subroutine "%s"
819 (W) This subroutine has called itself (directly or indirectly) 100
820 times than it has returned. This probably indicates an infinite
821 recursion, unless you're writing strange benchmark programs, in which
822 case it indicates something else.
824 =item Did you mean &%s instead?
826 (W) You probably referred to an imported subroutine &FOO as $FOO or some such.
828 =item Did you mean $ or @ instead of %?
830 (W) You probably said %hash{$key} when you meant $hash{$key} or @hash{@keys}.
831 On the other hand, maybe you just meant %hash and got carried away.
833 =item Do you need to predeclare %s?
835 (S) This is an educated guess made in conjunction with the message "%s
836 found where operator expected". It often means a subroutine or module
837 name is being referenced that hasn't been declared yet. This may be
838 because of ordering problems in your file, or because of a missing
839 "sub", "package", "require", or "use" statement. If you're
840 referencing something that isn't defined yet, you don't actually have
841 to define the subroutine or package before the current location. You
842 can use an empty "sub foo;" or "package FOO;" to enter a "forward"
845 =item Don't know how to handle magic of type '%s'
847 (P) The internal handling of magical variables has been cursed.
849 =item do_study: out of memory
851 (P) This should have been caught by safemalloc() instead.
853 =item Duplicate free() ignored
855 (S) An internal routine called free() on something that had already
858 =item elseif should be elsif
860 (S) There is no keyword "elseif" in Perl because Larry thinks it's
861 ugly. Your code will be interpreted as an attempt to call a method
862 named "elseif" for the class returned by the following block. This is
863 unlikely to be what you want.
865 =item END failed--cleanup aborted
867 (F) An untrapped exception was raised while executing an END subroutine.
868 The interpreter is immediately exited.
870 =item Error converting file specification %s
872 (F) An error peculiar to VMS. Since Perl may have to deal with file
873 specifications in either VMS or Unix syntax, it converts them to a
874 single form when it must operate on them directly. Either you've
875 passed an invalid file specification to Perl, or you've found a
876 case the conversion routines don't handle. Drat.
878 =item Execution of %s aborted due to compilation errors.
880 (F) The final summary message when a Perl compilation fails.
882 =item Exiting eval via %s
884 (W) You are exiting an eval by unconventional means, such as
885 a goto, or a loop control statement.
887 =item Exiting subroutine via %s
889 (W) You are exiting a subroutine by unconventional means, such as
890 a goto, or a loop control statement.
892 =item Exiting substitution via %s
894 (W) You are exiting a substitution by unconventional means, such as
895 a return, a goto, or a loop control statement.
897 =item Fatal VMS error at %s, line %d
899 (P) An error peculiar to VMS. Something untoward happened in a VMS system
900 service or RTL routine; Perl's exit status should provide more details. The
901 filename in "at %s" and the line number in "line %d" tell you which section of
902 the Perl source code is distressed.
904 =item fcntl is not implemented
906 (F) Your machine apparently doesn't implement fcntl(). What is this, a
909 =item Filehandle %s never opened
911 (W) An I/O operation was attempted on a filehandle that was never initialized.
912 You need to do an open() or a socket() call, or call a constructor from
913 the FileHandle package.
915 =item Filehandle %s opened only for input
917 (W) You tried to write on a read-only filehandle. If you
918 intended it to be a read-write filehandle, you needed to open it with
919 "+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If
920 you only intended to write the file, use "E<gt>" or "E<gt>E<gt>". See
923 =item Filehandle only opened for input
925 (W) You tried to write on a read-only filehandle. If you
926 intended it to be a read-write filehandle, you needed to open it with
927 "+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If
928 you only intended to write the file, use "E<gt>" or "E<gt>E<gt>". See
931 =item Final $ should be \$ or $name
933 (F) You must now decide whether the final $ in a string was meant to be
934 a literal dollar sign, or was meant to introduce a variable name
935 that happens to be missing. So you have to put either the backslash or
938 =item Final @ should be \@ or @name
940 (F) You must now decide whether the final @ in a string was meant to be
941 a literal "at" sign, or was meant to introduce a variable name
942 that happens to be missing. So you have to put either the backslash or
945 =item Format %s redefined
947 (W) You redefined a format. To suppress this warning, say
951 eval "format NAME =...";
954 =item Format not terminated
956 (F) A format must be terminated by a line with a solitary dot. Perl got
957 to the end of your file without finding such a line.
959 =item Found = in conditional, should be ==
969 (or something like that).
971 =item gdbm store returned %d, errno %d, key "%s"
973 (S) A warning from the GDBM_File extension that a store failed.
975 =item gethostent not implemented
977 (F) Your C library apparently doesn't implement gethostent(), probably
978 because if it did, it'd feel morally obligated to return every hostname
981 =item get{sock,peer}name() on closed fd
983 (W) You tried to get a socket or peer socket name on a closed socket.
984 Did you forget to check the return value of your socket() call?
986 =item getpwnam returned invalid UIC %#o for user "%s"
988 (S) A warning peculiar to VMS. The call to C<sys$getuai> underlying the
989 C<getpwnam> operator returned an invalid UIC.
992 =item Glob not terminated
994 (F) The lexer saw a left angle bracket in a place where it was expecting
995 a term, so it's looking for the corresponding right angle bracket, and not
996 finding it. Chances are you left some needed parentheses out earlier in
997 the line, and you really meant a "less than".
999 =item Global symbol "%s" requires explicit package name
1001 (F) You've said "use strict vars", which indicates that all variables must
1002 either be lexically scoped (using "my"), or explicitly qualified to
1003 say which package the global variable is in (using "::").
1005 =item goto must have label
1007 (F) Unlike with "next" or "last", you're not allowed to goto an
1008 unspecified destination. See L<perlfunc/goto>.
1010 =item Had to create %s unexpectedly
1012 (S) A routine asked for a symbol from a symbol table that ought to have
1013 existed already, but for some reason it didn't, and had to be created on
1014 an emergency basis to prevent a core dump.
1016 =item Hash %%s missing the % in argument %d of %s()
1018 (D) Really old Perl let you omit the % on hash names in some spots. This
1019 is now heavily deprecated.
1021 =item Ill-formed logical name |%s| in prime_env_iter
1023 (W) A warning peculiar to VMS. A logical name was encountered when preparing
1024 to iterate over %ENV which violates the syntactic rules governing logical
1025 names. Since it cannot be translated normally, it is skipped, and will not
1026 appear in %ENV. This may be a benign occurence, as some software packages
1027 might directly modify logical name tables and introduce non-standard names,
1028 or it may indicate that a logical name table has been corrupted.
1030 =item Illegal division by zero
1032 (F) You tried to divide a number by 0. Either something was wrong in your
1033 logic, or you need to put a conditional in to guard against meaningless input.
1035 =item Illegal modulus zero
1037 (F) You tried to divide a number by 0 to get the remainder. Most numbers
1038 don't take to this kindly.
1040 =item Illegal octal digit
1042 (F) You used an 8 or 9 in a octal number.
1044 =item Illegal octal digit ignored
1046 (W) You may have tried to use an 8 or 9 in a octal number. Interpretation
1047 of the octal number stopped before the 8 or 9.
1049 =item Insecure dependency in %s
1051 (F) You tried to do something that the tainting mechanism didn't like.
1052 The tainting mechanism is turned on when you're running setuid or setgid,
1053 or when you specify B<-T> to turn it on explicitly. The tainting mechanism
1054 labels all data that's derived directly or indirectly from the user,
1055 who is considered to be unworthy of your trust. If any such data is
1056 used in a "dangerous" operation, you get this error. See L<perlsec>
1057 for more information.
1059 =item Insecure directory in %s
1061 (F) You can't use system(), exec(), or a piped open in a setuid or setgid
1062 script if C<$ENV{PATH}> contains a directory that is writable by the world.
1067 (F) You can't use system(), exec(), or a piped open in a setuid or
1068 setgid script if C<$ENV{PATH}> is derived from data supplied (or
1069 potentially supplied) by the user. The script must set the path to a
1070 known value, using trustworthy data. See L<perlsec>.
1072 =item Integer overflow in hex number
1074 (S) The literal hex number you have specified is too big for your
1075 architecture. On a 32-bit architecture the largest hex literal is
1078 =item Integer overflow in octal number
1080 (S) The literal octal number you have specified is too big for your
1081 architecture. On a 32-bit architecture the largest octal literal is
1084 =item Internal inconsistency in tracking vforks
1086 (S) A warning peculiar to VMS. Perl keeps track of the number
1087 of times you've called C<fork> and C<exec>, in order to determine
1088 whether the current call to C<exec> should affect the current
1089 script or a subprocess (see L<perlvms/exec>). Somehow, this count
1090 has become scrambled, so Perl is making a guess and treating
1091 this C<exec> as a request to terminate the Perl script
1092 and execute the specified command.
1094 =item internal disaster in regexp
1096 (P) Something went badly wrong in the regular expression parser.
1098 =item internal urp in regexp at /%s/
1100 (P) Something went badly awry in the regular expression parser.
1102 =item invalid [] range in regexp
1104 (F) The range specified in a character class had a minimum character
1105 greater than the maximum character. See L<perlre>.
1107 =item ioctl is not implemented
1109 (F) Your machine apparently doesn't implement ioctl(), which is pretty
1110 strange for a machine that supports C.
1112 =item junk on end of regexp
1114 (P) The regular expression parser is confused.
1116 =item Label not found for "last %s"
1118 (F) You named a loop to break out of, but you're not currently in a
1119 loop of that name, not even if you count where you were called from.
1120 See L<perlfunc/last>.
1122 =item Label not found for "next %s"
1124 (F) You named a loop to continue, but you're not currently in a loop of
1125 that name, not even if you count where you were called from. See
1128 =item Label not found for "redo %s"
1130 (F) You named a loop to restart, but you're not currently in a loop of
1131 that name, not even if you count where you were called from. See
1134 =item listen() on closed fd
1136 (W) You tried to do a listen on a closed socket. Did you forget to check
1137 the return value of your socket() call? See L<perlfunc/listen>.
1139 =item Literal @%s now requires backslash
1141 (F) It used to be that Perl would try to guess whether you wanted an
1142 array interpolated or a literal @. It did this when the string was
1143 first used at runtime. Now strings are parsed at compile time, and
1144 ambiguous instances of @ must be disambiguated, either by putting a
1145 backslash to indicate a literal, or by declaring (or using) the array
1146 within the program before the string (lexically). (Someday it will simply
1147 assume that an unbackslashed @ interpolates an array.)
1149 =item Method for operation %s not found in package %s during blessing
1151 (F) An attempt was made to specify an entry in an overloading table that
1152 doesn't somehow point to a valid method. See L<overload>.
1154 =item Might be a runaway multi-line %s string starting on line %d
1156 (S) An advisory indicating that the previous error may have been caused
1157 by a missing delimiter on a string or pattern, because it eventually
1158 ended earlier on the current line.
1160 =item Misplaced _ in number
1162 (W) An underline in a decimal constant wasn't on a 3-digit boundary.
1164 =item Missing $ on loop variable
1166 (F) Apparently you've been programming in B<csh> too much. Variables are always
1167 mentioned with the $ in Perl, unlike in the shells, where it can vary from
1168 one line to the next.
1170 =item Missing comma after first argument to %s function
1172 (F) While certain functions allow you to specify a filehandle or an
1173 "indirect object" before the argument list, this ain't one of them.
1175 =item Missing operator before %s?
1177 (S) This is an educated guess made in conjunction with the message "%s
1178 found where operator expected". Often the missing operator is a comma.
1180 =item Missing right bracket
1182 (F) The lexer counted more opening curly brackets (braces) than closing ones.
1183 As a general rule, you'll find it's missing near the place you were last
1186 =item Missing semicolon on previous line?
1188 (S) This is an educated guess made in conjunction with the message "%s
1189 found where operator expected". Don't automatically put a semicolon on
1190 the previous line just because you saw this message.
1192 =item Modification of a read-only value attempted
1194 (F) You tried, directly or indirectly, to change the value of a
1195 constant. You didn't, of course, try "2 = 1", since the compiler
1196 catches that. But an easy way to do the same thing is:
1198 sub mod { $_[0] = 1 }
1201 Another way is to assign to a substr() that's off the end of the string.
1203 =item Modification of non-creatable array value attempted, subscript %d
1205 (F) You tried to make an array value spring into existence, and the
1206 subscript was probably negative, even counting from end of the array
1209 =item Modification of non-creatable hash value attempted, subscript "%s"
1211 (F) You tried to make a hash value spring into existence, and it couldn't
1212 be created for some peculiar reason.
1214 =item Module name must be constant
1216 (F) Only a bare module name is allowed as the first argument to a "use".
1218 =item msg%s not implemented
1220 (F) You don't have System V message IPC on your system.
1222 =item Multidimensional syntax %s not supported
1224 (W) Multidimensional arrays aren't written like C<$foo[1,2,3]>. They're written
1225 like C<$foo[1][2][3]>, as in C.
1227 =item Name "%s::%s" used only once: possible typo
1229 (W) Typographical errors often show up as unique variable names. If you
1230 had a good reason for having a unique name, then just mention it
1231 again somehow to suppress the message (the C<use vars> pragma is
1232 provided for just this purpose).
1234 =item Negative length
1236 (F) You tried to do a read/write/send/recv operation with a buffer length
1237 that is less than 0. This is difficult to imagine.
1239 =item nested *?+ in regexp
1241 (F) You can't quantify a quantifier without intervening parens. So
1242 things like ** or +* or ?* are illegal.
1244 Note, however, that the minimal matching quantifiers, *?, +? and ?? appear
1245 to be nested quantifiers, but aren't. See L<perlre>.
1249 (F) The setuid emulator requires that scripts have a well-formed #! line
1250 even on machines that don't support the #! construct.
1252 =item No %s allowed while running setuid
1254 (F) Certain operations are deemed to be too insecure for a setuid or setgid
1255 script to even be allowed to attempt. Generally speaking there will be
1256 another way to do what you want that is, if not secure, at least securable.
1259 =item No B<-e> allowed in setuid scripts
1261 (F) A setuid script can't be specified by the user.
1263 =item No comma allowed after %s
1265 (F) A list operator that has a filehandle or "indirect object" is not
1266 allowed to have a comma between that and the following arguments.
1267 Otherwise it'd be just another one of the arguments.
1269 =item No command into which to pipe on command line
1271 (F) An error peculiar to VMS. Perl handles its own command line redirection,
1272 and found a '|' at the end of the command line, so it doesn't know whither you
1273 want to pipe the output from this command.
1275 =item No DB::DB routine defined
1277 (F) The currently executing code was compiled with the B<-d> switch,
1278 but for some reason the perl5db.pl file (or some facsimile thereof)
1279 didn't define a routine to be called at the beginning of each
1280 statement. Which is odd, because the file should have been required
1281 automatically, and should have blown up the require if it didn't parse
1284 =item No dbm on this machine
1286 (P) This is counted as an internal error, because every machine should
1287 supply dbm nowadays, since Perl comes with SDBM. See L<SDBM_File>.
1289 =item No DBsub routine
1291 (F) The currently executing code was compiled with the B<-d> switch,
1292 but for some reason the perl5db.pl file (or some facsimile thereof)
1293 didn't define a DB::sub routine to be called at the beginning of each
1294 ordinary subroutine call.
1296 =item No error file after 2E<gt> or 2E<gt>E<gt> on command line
1298 (F) An error peculiar to VMS. Perl handles its own command line redirection,
1299 and found a '2E<gt>' or a '2E<gt>E<gt>' on the command line, but can't find
1300 the name of the file to which to write data destined for stderr.
1302 =item No input file after E<lt> on command line
1304 (F) An error peculiar to VMS. Perl handles its own command line redirection,
1305 and found a 'E<lt>' on the command line, but can't find the name of the file
1306 from which to read data for stdin.
1308 =item No output file after E<gt> on command line
1310 (F) An error peculiar to VMS. Perl handles its own command line redirection,
1311 and found a lone 'E<gt>' at the end of the command line, so it doesn't know
1312 whither you wanted to redirect stdout.
1314 =item No output file after E<gt> or E<gt>E<gt> on command line
1316 (F) An error peculiar to VMS. Perl handles its own command line redirection,
1317 and found a 'E<gt>' or a 'E<gt>E<gt>' on the command line, but can't find the
1318 name of the file to which to write data destined for stdout.
1320 =item No Perl script found in input
1322 (F) You called C<perl -x>, but no line was found in the file beginning
1323 with #! and containing the word "perl".
1325 =item No setregid available
1327 (F) Configure didn't find anything resembling the setregid() call for
1330 =item No setreuid available
1332 (F) Configure didn't find anything resembling the setreuid() call for
1335 =item No space allowed after B<-I>
1337 (F) The argument to B<-I> must follow the B<-I> immediately with no
1340 =item No such pipe open
1342 (P) An error peculiar to VMS. The internal routine my_pclose() tried to
1343 close a pipe which hadn't been opened. This should have been caught earlier as
1344 an attempt to close an unopened filehandle.
1346 =item No such signal: SIG%s
1348 (W) You specified a signal name as a subscript to %SIG that was not recognized.
1349 Say C<kill -l> in your shell to see the valid signal names on your system.
1351 =item Not a CODE reference
1353 (F) Perl was trying to evaluate a reference to a code value (that is, a
1354 subroutine), but found a reference to something else instead. You can
1355 use the ref() function to find out what kind of ref it really was.
1356 See also L<perlref>.
1358 =item Not a format reference
1360 (F) I'm not sure how you managed to generate a reference to an anonymous
1361 format, but this indicates you did, and that it didn't exist.
1363 =item Not a GLOB reference
1365 (F) Perl was trying to evaluate a reference to a "typeglob" (that is,
1366 a symbol table entry that looks like C<*foo>), but found a reference to
1367 something else instead. You can use the ref() function to find out
1368 what kind of ref it really was. See L<perlref>.
1370 =item Not a HASH reference
1372 (F) Perl was trying to evaluate a reference to a hash value, but
1373 found a reference to something else instead. You can use the ref()
1374 function to find out what kind of ref it really was. See L<perlref>.
1376 =item Not a perl script
1378 (F) The setuid emulator requires that scripts have a well-formed #! line
1379 even on machines that don't support the #! construct. The line must
1382 =item Not a SCALAR reference
1384 (F) Perl was trying to evaluate a reference to a scalar value, but
1385 found a reference to something else instead. You can use the ref()
1386 function to find out what kind of ref it really was. See L<perlref>.
1388 =item Not a subroutine reference
1390 (F) Perl was trying to evaluate a reference to a code value (that is, a
1391 subroutine), but found a reference to something else instead. You can
1392 use the ref() function to find out what kind of ref it really was.
1393 See also L<perlref>.
1395 =item Not a subroutine reference in %OVERLOAD
1397 (F) An attempt was made to specify an entry in an overloading table that
1398 doesn't somehow point to a valid subroutine. See L<overload>.
1400 =item Not an ARRAY reference
1402 (F) Perl was trying to evaluate a reference to an array value, but
1403 found a reference to something else instead. You can use the ref()
1404 function to find out what kind of ref it really was. See L<perlref>.
1406 =item Not enough arguments for %s
1408 (F) The function requires more arguments than you specified.
1410 =item Not enough format arguments
1412 (W) A format specified more picture fields than the next line supplied.
1415 =item Null filename used
1417 (F) You can't require the null filename, especially since on many machines
1418 that means the current directory! See L<perlfunc/require>.
1420 =item Null picture in formline
1422 (F) The first argument to formline must be a valid format picture
1423 specification. It was found to be empty, which probably means you
1424 supplied it an uninitialized value. See L<perlform>.
1426 =item NULL OP IN RUN
1428 (P) Some internal routine called run() with a null opcode pointer.
1432 (P) An attempt was made to realloc NULL.
1434 =item NULL regexp argument
1436 (P) The internal pattern matching routines blew it bigtime.
1438 =item NULL regexp parameter
1440 (P) The internal pattern matching routines are out of their gourd.
1442 =item Odd number of elements in hash list
1444 (S) You specified an odd number of elements to a hash list, which is odd,
1445 since hash lists come in key/value pairs.
1447 =item Offset outside string
1449 (F) You tried to do a read/write/send/recv operation with an offset
1450 pointing outside the buffer. This is difficult to imagine.
1451 The sole exception to this is that C<sysread()>ing past the buffer
1452 will extend the buffer and zero pad the new area.
1456 (S) An internal warning that the grammar is screwed up.
1460 (S) An internal warning that the grammar is screwed up.
1462 =item Operation `%s' %s: no method found,
1464 (F) An attempt was made to use an entry in an overloading table that
1465 somehow no longer points to a valid method. See L<overload>.
1467 =item Operator or semicolon missing before %s
1469 (S) You used a variable or subroutine call where the parser was
1470 expecting an operator. The parser has assumed you really meant
1471 to use an operator, but this is highly likely to be incorrect.
1472 For example, if you say "*foo *foo" it will be interpreted as
1473 if you said "*foo * 'foo'".
1475 =item Out of memory for yacc stack
1477 (F) The yacc parser wanted to grow its stack so it could continue parsing,
1478 but realloc() wouldn't give it more memory, virtual or otherwise.
1480 =item Out of memory!
1482 (X|F) The malloc() function returned 0, indicating there was insufficient
1483 remaining memory (or virtual memory) to satisfy the request.
1485 The request was judged to be small, so the possibility to trap it
1486 depends on the way perl was compiled. By default it is not trappable.
1487 However, if compiled for this, Perl may use the contents of C<$^M> as
1488 an emergency pool after die()ing with this message. In this case the
1489 error is trappable I<once>.
1491 =item Out of memory during request for %s
1493 (F) The malloc() function returned 0, indicating there was insufficient
1494 remaining memory (or virtual memory) to satisfy the request. However,
1495 the request was judged large enough (compile-time default is 64K), so
1496 a possibility to shut down by trapping this error is granted.
1500 (W) A single call to write() produced more lines than can fit on a page.
1503 =item panic: ck_grep
1505 (P) Failed an internal consistency check trying to compile a grep.
1507 =item panic: ck_split
1509 (P) Failed an internal consistency check trying to compile a split.
1511 =item panic: corrupt saved stack index
1513 (P) The savestack was requested to restore more localized values than there
1514 are in the savestack.
1518 (P) We popped the context stack to an eval context, and then discovered
1519 it wasn't an eval context.
1521 =item panic: do_match
1523 (P) The internal pp_match() routine was called with invalid operational data.
1525 =item panic: do_split
1527 (P) Something terrible went wrong in setting up for the split.
1529 =item panic: do_subst
1531 (P) The internal pp_subst() routine was called with invalid operational data.
1533 =item panic: do_trans
1535 (P) The internal do_trans() routine was called with invalid operational data.
1539 (P) We popped the context stack to a context with the specified label,
1540 and then discovered it wasn't a context we know how to do a goto in.
1542 =item panic: INTERPCASEMOD
1544 (P) The lexer got into a bad state at a case modifier.
1546 =item panic: INTERPCONCAT
1548 (P) The lexer got into a bad state parsing a string with brackets.
1552 (P) We popped the context stack to a block context, and then discovered
1553 it wasn't a block context.
1555 =item panic: leave_scope clearsv
1557 (P) A writable lexical variable became readonly somehow within the scope.
1559 =item panic: leave_scope inconsistency
1561 (P) The savestack probably got out of sync. At least, there was an
1562 invalid enum on the top of it.
1566 (P) Something requested a negative number of bytes of malloc.
1568 =item panic: mapstart
1570 (P) The compiler is screwed up with respect to the map() function.
1572 =item panic: null array
1574 (P) One of the internal array routines was passed a null AV pointer.
1576 =item panic: pad_alloc
1578 (P) The compiler got confused about which scratch pad it was allocating
1579 and freeing temporaries and lexicals from.
1581 =item panic: pad_free curpad
1583 (P) The compiler got confused about which scratch pad it was allocating
1584 and freeing temporaries and lexicals from.
1586 =item panic: pad_free po
1588 (P) An invalid scratch pad offset was detected internally.
1590 =item panic: pad_reset curpad
1592 (P) The compiler got confused about which scratch pad it was allocating
1593 and freeing temporaries and lexicals from.
1595 =item panic: pad_sv po
1597 (P) An invalid scratch pad offset was detected internally.
1599 =item panic: pad_swipe curpad
1601 (P) The compiler got confused about which scratch pad it was allocating
1602 and freeing temporaries and lexicals from.
1604 =item panic: pad_swipe po
1606 (P) An invalid scratch pad offset was detected internally.
1608 =item panic: pp_iter
1610 (P) The foreach iterator got called in a non-loop context frame.
1612 =item panic: realloc
1614 (P) Something requested a negative number of bytes of realloc.
1616 =item panic: restartop
1618 (P) Some internal routine requested a goto (or something like it), and
1619 didn't supply the destination.
1623 (P) We popped the context stack to a subroutine or eval context, and
1624 then discovered it wasn't a subroutine or eval context.
1626 =item panic: scan_num
1628 (P) scan_num() got called on something that wasn't a number.
1630 =item panic: sv_insert
1632 (P) The sv_insert() routine was told to remove more string than there
1635 =item panic: top_env
1637 (P) The compiler attempted to do a goto, or something weird like that.
1641 (P) The lexer got into a bad state while processing a case modifier.
1643 =item Parens missing around "%s" list
1645 (W) You said something like
1651 my ($foo, $bar) = @_;
1653 Remember that "my" and "local" bind closer than comma.
1655 =item Perl %3.3f required--this is only version %s, stopped
1657 (F) The module in question uses features of a version of Perl more recent
1658 than the currently running version. How long has it been since you upgraded,
1659 anyway? See L<perlfunc/require>.
1661 =item Permission denied
1663 (F) The setuid emulator in suidperl decided you were up to no good.
1665 =item pid %d not a child
1667 (W) A warning peculiar to VMS. Waitpid() was asked to wait for a process which
1668 isn't a subprocess of the current process. While this is fine from VMS'
1669 perspective, it's probably not what you intended.
1671 =item POSIX getpgrp can't take an argument
1673 (F) Your C compiler uses POSIX getpgrp(), which takes no argument, unlike
1674 the BSD version, which takes a pid.
1676 =item Possible attempt to put comments in qw() list
1678 (W) You probably wrote somthing like this:
1684 when you should have written this:
1690 =item Possible attempt to separate words with commas
1692 (W) You probably wrote somthing like this:
1696 when you should have written this:
1700 =item Possible memory corruption: %s overflowed 3rd argument
1702 (F) An ioctl() or fcntl() returned more than Perl was bargaining for.
1703 Perl guesses a reasonable buffer size, but puts a sentinel byte at the
1704 end of the buffer just in case. This sentinel byte got clobbered, and
1705 Perl assumes that memory is now corrupted. See L<perlfunc/ioctl>.
1707 =item Precedence problem: open %s should be open(%s)
1709 (S) The old irregular construct
1713 is now misinterpreted as
1717 because of the strict regularization of Perl 5's grammar into unary and
1718 list operators. (The old open was a little of both.) You must put
1719 parens around the filehandle, or use the new "or" operator instead of "||".
1721 =item print on closed filehandle %s
1723 (W) The filehandle you're printing on got itself closed sometime before now.
1724 Check your logic flow.
1726 =item printf on closed filehandle %s
1728 (W) The filehandle you're writing to got itself closed sometime before now.
1729 Check your logic flow.
1731 =item Probable precedence problem on %s
1733 (W) The compiler found a bare word where it expected a conditional,
1734 which often indicates that an || or && was parsed as part of the
1735 last argument of the previous construct, for example:
1739 =item Prototype mismatch: (%s) vs (%s)
1741 (S) The subroutine being defined had a predeclared (forward) declaration
1742 with a different function prototype.
1744 =item Read on closed filehandle E<lt>%sE<gt>
1746 (W) The filehandle you're reading from got itself closed sometime before now.
1747 Check your logic flow.
1749 =item Reallocation too large: %lx
1751 (F) You can't allocate more than 64K on an MSDOS machine.
1753 =item Recompile perl with B<-D>DEBUGGING to use B<-D> switch
1755 (F) You can't use the B<-D> option unless the code to produce the
1756 desired output is compiled into Perl, which entails some overhead,
1757 which is why it's currently left out of your copy.
1759 =item Recursive inheritance detected
1761 (F) More than 100 levels of inheritance were used. Probably indicates
1762 an unintended loop in your inheritance hierarchy.
1764 =item Reference miscount in sv_replace()
1766 (W) The internal sv_replace() function was handed a new SV with a
1767 reference count of other than 1.
1769 =item regexp memory corruption
1771 (P) The regular expression engine got confused by what the regular
1772 expression compiler gave it.
1774 =item regexp out of space
1776 (P) A "can't happen" error, because safemalloc() should have caught it earlier.
1778 =item regexp too big
1780 (F) The current implementation of regular expressions uses shorts as
1781 address offsets within a string. Unfortunately this means that if
1782 the regular expression compiles to longer than 32767, it'll blow up.
1783 Usually when you want a regular expression this big, there is a better
1784 way to do it with multiple statements. See L<perlre>.
1786 =item Reversed %s= operator
1788 (W) You wrote your assignment operator backwards. The = must always
1789 comes last, to avoid ambiguity with subsequent unary operators.
1791 =item Runaway format
1793 (F) Your format contained the ~~ repeat-until-blank sequence, but it
1794 produced 200 lines at once, and the 200th line looked exactly like the
1795 199th line. Apparently you didn't arrange for the arguments to exhaust
1796 themselves, either by using ^ instead of @ (for scalar variables), or by
1797 shifting or popping (for array variables). See L<perlform>.
1799 =item Scalar value @%s[%s] better written as $%s[%s]
1801 (W) You've used an array slice (indicated by @) to select a single value of
1802 an array. Generally it's better to ask for a scalar value (indicated by $).
1803 The difference is that C<$foo[&bar]> always behaves like a scalar, both when
1804 assigning to it and when evaluating its argument, while C<@foo[&bar]> behaves
1805 like a list when you assign to it, and provides a list context to its
1806 subscript, which can do weird things if you're only expecting one subscript.
1808 On the other hand, if you were actually hoping to treat the array
1809 element as a list, you need to look into how references work, since
1810 Perl will not magically convert between scalars and lists for you. See
1813 =item Script is not setuid/setgid in suidperl
1815 (F) Oddly, the suidperl program was invoked on a script with its setuid
1816 or setgid bit not set. This doesn't make much sense.
1818 =item Search pattern not terminated
1820 (F) The lexer couldn't find the final delimiter of a // or m{}
1821 construct. Remember that bracketing delimiters count nesting level.
1823 =item seek() on unopened file
1825 (W) You tried to use the seek() function on a filehandle that was either
1826 never opened or has been closed since.
1828 =item select not implemented
1830 (F) This machine doesn't implement the select() system call.
1832 =item sem%s not implemented
1834 (F) You don't have System V semaphore IPC on your system.
1836 =item semi-panic: attempt to dup freed string
1838 (S) The internal newSVsv() routine was called to duplicate a scalar
1839 that had previously been marked as free.
1841 =item Semicolon seems to be missing
1843 (W) A nearby syntax error was probably caused by a missing semicolon,
1844 or possibly some other missing operator, such as a comma.
1846 =item Send on closed socket
1848 (W) The filehandle you're sending to got itself closed sometime before now.
1849 Check your logic flow.
1851 =item Sequence (?#... not terminated
1853 (F) A regular expression comment must be terminated by a closing
1854 parenthesis. Embedded parens aren't allowed. See L<perlre>.
1856 =item Sequence (?%s...) not implemented
1858 (F) A proposed regular expression extension has the character reserved
1859 but has not yet been written. See L<perlre>.
1861 =item Sequence (?%s...) not recognized
1863 (F) You used a regular expression extension that doesn't make sense.
1868 Also known as "500 Server error". This is a CGI error, not a Perl
1869 error. You need to make sure your script is executable, is accessible
1870 by the user CGI is running the script under (which is probably not
1871 the user account you tested it under), does not rely on any environment
1872 variables (like PATH) from the user it isn't running under, and isn't
1873 in a location where the CGI server can't find it, basically, more or less.
1875 =item setegid() not implemented
1877 (F) You tried to assign to C<$)>, and your operating system doesn't support
1878 the setegid() system call (or equivalent), or at least Configure didn't
1881 =item seteuid() not implemented
1883 (F) You tried to assign to C<$E<gt>>, and your operating system doesn't support
1884 the seteuid() system call (or equivalent), or at least Configure didn't
1887 =item setrgid() not implemented
1889 (F) You tried to assign to C<$(>, and your operating system doesn't support
1890 the setrgid() system call (or equivalent), or at least Configure didn't
1893 =item setruid() not implemented
1895 (F) You tried to assign to C<$<lt>>, and your operating system doesn't support
1896 the setruid() system call (or equivalent), or at least Configure didn't
1899 =item Setuid/gid script is writable by world
1901 (F) The setuid emulator won't run a script that is writable by the world,
1902 because the world might have written on it already.
1904 =item shm%s not implemented
1906 (F) You don't have System V shared memory IPC on your system.
1908 =item shutdown() on closed fd
1910 (W) You tried to do a shutdown on a closed socket. Seems a bit superfluous.
1912 =item SIG%s handler "%s" not defined.
1914 (W) The signal handler named in %SIG doesn't, in fact, exist. Perhaps you
1915 put it into the wrong package?
1917 =item sort is now a reserved word
1919 (F) An ancient error message that almost nobody ever runs into anymore.
1920 But before sort was a keyword, people sometimes used it as a filehandle.
1922 =item Sort subroutine didn't return a numeric value
1924 (F) A sort comparison routine must return a number. You probably blew
1925 it by not using C<E<lt>=E<gt>> or C<cmp>, or by not using them correctly.
1926 See L<perlfunc/sort>.
1928 =item Sort subroutine didn't return single value
1930 (F) A sort comparison subroutine may not return a list value with more
1931 or less than one element. See L<perlfunc/sort>.
1935 (P) The split was looping infinitely. (Obviously, a split shouldn't iterate
1936 more times than there are characters of input, which is what happened.)
1937 See L<perlfunc/split>.
1939 =item Stat on unopened file E<lt>%sE<gt>
1941 (W) You tried to use the stat() function (or an equivalent file test)
1942 on a filehandle that was either never opened or has been closed since.
1944 =item Statement unlikely to be reached
1946 (W) You did an exec() with some statement after it other than a die().
1947 This is almost always an error, because exec() never returns unless
1948 there was a failure. You probably wanted to use system() instead,
1949 which does return. To suppress this warning, put the exec() in a block
1952 =item Subroutine %s redefined
1954 (W) You redefined a subroutine. To suppress this warning, say
1958 eval "sub name { ... }";
1961 =item Substitution loop
1963 (P) The substitution was looping infinitely. (Obviously, a
1964 substitution shouldn't iterate more times than there are characters of
1965 input, which is what happened.) See the discussion of substitution in
1966 L<perlop/"Quote and Quotelike Operators">.
1968 =item Substitution pattern not terminated
1970 (F) The lexer couldn't find the interior delimiter of a s/// or s{}{}
1971 construct. Remember that bracketing delimiters count nesting level.
1973 =item Substitution replacement not terminated
1975 (F) The lexer couldn't find the final delimiter of a s/// or s{}{}
1976 construct. Remember that bracketing delimiters count nesting level.
1978 =item substr outside of string
1980 (W) You tried to reference a substr() that pointed outside of a string.
1981 That is, the absolute value of the offset was larger than the length of
1982 the string. See L<perlfunc/substr>.
1984 =item suidperl is no longer needed since...
1986 (F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but a
1987 version of the setuid emulator somehow got run anyway.
1991 (F) Probably means you had a syntax error. Common reasons include:
1993 A keyword is misspelled.
1994 A semicolon is missing.
1996 An opening or closing parenthesis is missing.
1997 An opening or closing brace is missing.
1998 A closing quote is missing.
2000 Often there will be another error message associated with the syntax
2001 error giving more information. (Sometimes it helps to turn on B<-w>.)
2002 The error message itself often tells you where it was in the line when
2003 it decided to give up. Sometimes the actual error is several tokens
2004 before this, since Perl is good at understanding random input.
2005 Occasionally the line number may be misleading, and once in a blue moon
2006 the only way to figure out what's triggering the error is to call
2007 C<perl -c> repeatedly, chopping away half the program each time to see
2008 if the error went away. Sort of the cybernetic version of S<20 questions>.
2010 =item syntax error at line %d: `%s' unexpected
2012 (A) You've accidentally run your script through the Bourne shell
2013 instead of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
2016 =item System V IPC is not implemented on this machine
2018 (F) You tried to do something with a function beginning with "sem", "shm"
2019 or "msg". See L<perlfunc/semctl>, for example.
2021 =item Syswrite on closed filehandle
2023 (W) The filehandle you're writing to got itself closed sometime before now.
2024 Check your logic flow.
2026 =item tell() on unopened file
2028 (W) You tried to use the tell() function on a filehandle that was either
2029 never opened or has been closed since.
2031 =item Test on unopened file E<lt>%sE<gt>
2033 (W) You tried to invoke a file test operator on a filehandle that isn't
2034 open. Check your logic. See also L<perlfunc/-X>.
2036 =item That use of $[ is unsupported
2038 (F) Assignment to C<$[> is now strictly circumscribed, and interpreted as
2039 a compiler directive. You may only say one of
2048 This is to prevent the problem of one module changing the array base
2049 out from under another module inadvertently. See L<perlvar/$[>.
2051 =item The %s function is unimplemented
2053 The function indicated isn't implemented on this architecture, according
2054 to the probings of Configure.
2056 =item The crypt() function is unimplemented due to excessive paranoia.
2058 (F) Configure couldn't find the crypt() function on your machine,
2059 probably because your vendor didn't supply it, probably because they
2060 think the U.S. Government thinks it's a secret, or at least that they
2061 will continue to pretend that it is. And if you quote me on that, I
2064 =item The stat preceding C<-l _> wasn't an lstat
2066 (F) It makes no sense to test the current stat buffer for symbolic linkhood
2067 if the last stat that wrote to the stat buffer already went past
2068 the symlink to get to the real file. Use an actual filename instead.
2070 =item times not implemented
2072 (F) Your version of the C library apparently doesn't do times(). I suspect
2073 you're not running on Unix.
2075 =item Too few args to syscall
2077 (F) There has to be at least one argument to syscall() to specify the
2078 system call to call, silly dilly.
2084 (A) You've accidentally run your script through B<csh> instead
2085 of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
2088 =item Too many args to syscall
2090 (F) Perl only supports a maximum of 14 args to syscall().
2092 =item Too many arguments for %s
2094 (F) The function requires fewer arguments than you specified.
2096 =item trailing \ in regexp
2098 (F) The regular expression ends with an unbackslashed backslash. Backslash
2101 =item Translation pattern not terminated
2103 (F) The lexer couldn't find the interior delimiter of a tr/// or tr[][]
2106 =item Translation replacement not terminated
2108 (F) The lexer couldn't find the final delimiter of a tr/// or tr[][]
2111 =item truncate not implemented
2113 (F) Your machine doesn't implement a file truncation mechanism that
2114 Configure knows about.
2116 =item Type of arg %d to %s must be %s (not %s)
2118 (F) This function requires the argument in that position to be of a
2119 certain type. Arrays must be @NAME or C<@{EXPR}>. Hashes must be
2120 %NAME or C<%{EXPR}>. No implicit dereferencing is allowed--use the
2121 {EXPR} forms as an explicit dereference. See L<perlref>.
2123 =item umask: argument is missing initial 0
2125 (W) A umask of 222 is incorrect. It should be 0222, since octal literals
2126 always start with 0 in Perl, as in C.
2128 =item Unable to create sub named "%s"
2130 (F) You attempted to create or access a subroutine with an illegal name.
2132 =item Unbalanced context: %d more PUSHes than POPs
2134 (W) The exit code detected an internal inconsistency in how many execution
2135 contexts were entered and left.
2137 =item Unbalanced saves: %d more saves than restores
2139 (W) The exit code detected an internal inconsistency in how many
2140 values were temporarily localized.
2142 =item Unbalanced scopes: %d more ENTERs than LEAVEs
2144 (W) The exit code detected an internal inconsistency in how many blocks
2145 were entered and left.
2147 =item Unbalanced tmps: %d more allocs than frees
2149 (W) The exit code detected an internal inconsistency in how many mortal
2150 scalars were allocated and freed.
2152 =item Undefined format "%s" called
2154 (F) The format indicated doesn't seem to exist. Perhaps it's really in
2155 another package? See L<perlform>.
2157 =item Undefined sort subroutine "%s" called
2159 (F) The sort comparison routine specified doesn't seem to exist. Perhaps
2160 it's in a different package? See L<perlfunc/sort>.
2162 =item Undefined subroutine &%s called
2164 (F) The subroutine indicated hasn't been defined, or if it was, it
2165 has since been undefined.
2167 =item Undefined subroutine called
2169 (F) The anonymous subroutine you're trying to call hasn't been defined,
2170 or if it was, it has since been undefined.
2172 =item Undefined subroutine in sort
2174 (F) The sort comparison routine specified is declared but doesn't seem to
2175 have been defined yet. See L<perlfunc/sort>.
2177 =item Undefined top format "%s" called
2179 (F) The format indicated doesn't seem to exist. Perhaps it's really in
2180 another package? See L<perlform>.
2182 =item unexec of %s into %s failed!
2184 (F) The unexec() routine failed for some reason. See your local FSF
2185 representative, who probably put it there in the first place.
2187 =item Unknown BYTEORDER
2189 (F) There are no byteswapping functions for a machine with this byte order.
2191 =item unmatched () in regexp
2193 (F) Unbackslashed parentheses must always be balanced in regular
2194 expressions. If you're a vi user, the % key is valuable for finding
2195 the matching paren. See L<perlre>.
2197 =item Unmatched right bracket
2199 (F) The lexer counted more closing curly brackets (braces) than opening
2200 ones, so you're probably missing an opening bracket. As a general
2201 rule, you'll find the missing one (so to speak) near the place you were
2204 =item unmatched [] in regexp
2206 (F) The brackets around a character class must match. If you wish to
2207 include a closing bracket in a character class, backslash it or put it first.
2210 =item Unquoted string "%s" may clash with future reserved word
2212 (W) You used a bare word that might someday be claimed as a reserved word.
2213 It's best to put such a word in quotes, or capitalize it somehow, or insert
2214 an underbar into it. You might also declare it as a subroutine.
2216 =item Unrecognized character \%03o ignored
2218 (S) A garbage character was found in the input, and ignored, in case it's
2219 a weird control character on an EBCDIC machine, or some such.
2221 =item Unrecognized signal name "%s"
2223 (F) You specified a signal name to the kill() function that was not recognized.
2224 Say C<kill -l> in your shell to see the valid signal names on your system.
2226 =item Unrecognized switch: -%s
2228 (F) You specified an illegal option to Perl. Don't do that.
2229 (If you think you didn't do that, check the #! line to see if it's
2230 supplying the bad switch on your behalf.)
2232 =item Unsuccessful %s on filename containing newline
2234 (W) A file operation was attempted on a filename, and that operation
2235 failed, PROBABLY because the filename contained a newline, PROBABLY
2236 because you forgot to chop() or chomp() it off. See L<perlfunc/chop>.
2238 =item Unsupported directory function "%s" called
2240 (F) Your machine doesn't support opendir() and readdir().
2242 =item Unsupported function %s
2244 (F) This machines doesn't implement the indicated function, apparently.
2245 At least, Configure doesn't think so.
2247 =item Unsupported socket function "%s" called
2249 (F) Your machine doesn't support the Berkeley socket mechanism, or at
2250 least that's what Configure thought.
2252 =item Unterminated E<lt>E<gt> operator
2254 (F) The lexer saw a left angle bracket in a place where it was expecting
2255 a term, so it's looking for the corresponding right angle bracket, and not
2256 finding it. Chances are you left some needed parentheses out earlier in
2257 the line, and you really meant a "less than".
2259 =item Use of $# is deprecated
2261 (D) This was an ill-advised attempt to emulate a poorly defined B<awk> feature.
2262 Use an explicit printf() or sprintf() instead.
2264 =item Use of $* is deprecated
2266 (D) This variable magically turned on multiline pattern matching, both for
2267 you and for any luckless subroutine that you happen to call. You should
2268 use the new C<//m> and C<//s> modifiers now to do that without the dangerous
2269 action-at-a-distance effects of C<$*>.
2271 =item Use of %s in printf format not supported
2273 (F) You attempted to use a feature of printf that is accessible only
2274 from C. This usually means there's a better way to do it in Perl.
2276 =item Use of %s is deprecated
2278 (D) The construct indicated is no longer recommended for use, generally
2279 because there's a better way to do it, and also because the old way has
2282 =item Use of bare E<lt>E<lt> to mean E<lt>E<lt>"" is deprecated
2284 (D) You are now encouraged to use the explicitly quoted form if you
2285 wish to use a blank line as the terminator of the here-document.
2287 =item Use of implicit split to @_ is deprecated
2289 (D) It makes a lot of work for the compiler when you clobber a
2290 subroutine's argument list, so it's better if you assign the results of
2291 a split() explicitly to an array (or list).
2293 =item Use of uninitialized value
2295 (W) An undefined value was used as if it were already defined. It was
2296 interpreted as a "" or a 0, but maybe it was a mistake. To suppress this
2297 warning assign an initial value to your variables.
2299 =item Useless use of %s in void context
2301 (W) You did something without a side effect in a context that does nothing
2302 with the return value, such as a statement that doesn't return a value
2303 from a block, or the left side of a scalar comma operator. Very often
2304 this points not to stupidity on your part, but a failure of Perl to parse
2305 your program the way you thought it would. For example, you'd get this
2306 if you mixed up your C precedence with Python precedence and said
2310 when you meant to say
2312 ($one, $two) = (1, 2);
2314 Another common error is to use ordinary parentheses to construct a list
2315 reference when you should be using square or curly brackets, for
2320 when you should have said
2324 The square brackets explicitly turn a list value into a scalar value,
2325 while parentheses do not. So when a parenthesized list is evaluated in
2326 a scalar context, the comma is treated like C's comma operator, which
2327 throws away the left argument, which is not what you want. See
2328 L<perlref> for more on this.
2330 =item untie attempted while %d inner references still exist
2332 (W) A copy of the object returned from C<tie> (or C<tied>) was still
2333 valid when C<untie> was called.
2335 =item Variable "%s" is not exported
2337 (F) While "use strict" in effect, you referred to a global variable
2338 that you apparently thought was imported from another module, because
2339 something else of the same name (usually a subroutine) is exported
2340 by that module. It usually means you put the wrong funny character
2341 on the front of your variable.
2343 =item Variable syntax.
2345 (A) You've accidentally run your script through B<csh> instead
2346 of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
2349 =item Warning: unable to close filehandle %s properly.
2351 (S) The implicit close() done by an open() got an error indication on the
2352 close(). This usually indicates your filesystem ran out of disk space.
2354 =item Warning: Use of "%s" without parens is ambiguous
2356 (S) You wrote a unary operator followed by something that looks like a
2357 binary operator that could also have been interpreted as a term or
2358 unary operator. For instance, if you know that the rand function
2359 has a default argument of 1.0, and you write
2363 you may THINK you wrote the same thing as
2367 but in actual fact, you got
2371 So put in parens to say what you really mean.
2373 =item Write on closed filehandle
2375 (W) The filehandle you're writing to got itself closed sometime before now.
2376 Check your logic flow.
2378 =item X outside of string
2380 (F) You had a pack template that specified a relative position before
2381 the beginning of the string being unpacked. See L<perlfunc/pack>.
2383 =item x outside of string
2385 (F) You had a pack template that specified a relative position after
2386 the end of the string being unpacked. See L<perlfunc/pack>.
2388 =item Xsub "%s" called in sort
2390 (F) The use of an external subroutine as a sort comparison is not yet supported.
2392 =item Xsub called in sort
2394 (F) The use of an external subroutine as a sort comparison is not yet supported.
2396 =item You can't use C<-l> on a filehandle
2398 (F) A filehandle represents an opened file, and when you opened the file it
2399 already went past any symlink you are presumably trying to look for.
2400 Use a filename instead.
2402 =item YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!
2404 (F) And you probably never will, since you probably don't have the
2405 sources to your kernel, and your vendor probably doesn't give a rip
2406 about what you want. Your best bet is to use the wrapsuid script in
2407 the eg directory to put a setuid C wrapper around your script.
2409 =item You need to quote "%s"
2411 (W) You assigned a bareword as a signal handler name. Unfortunately, you
2412 already have a subroutine of that name declared, which means that Perl 5
2413 will try to call the subroutine when the assignment is executed, which is
2414 probably not what you want. (If it IS what you want, put an & in front.)
2416 =item [gs]etsockopt() on closed fd
2418 (W) You tried to get or set a socket option on a closed socket.
2419 Did you forget to check the return value of your socket() call?
2420 See L<perlfunc/getsockopt>.
2422 =item \1 better written as $1
2424 (W) Outside of patterns, backreferences live on as variables. The use
2425 of backslashes is grandfathered on the righthand side of a
2426 substitution, but stylistically it's better to use the variable form
2427 because other Perl programmers will expect it, and it works better
2428 if there are more than 9 backreferences.
2430 =item '|' and 'E<lt>' may not both be specified on command line
2432 (F) An error peculiar to VMS. Perl does its own command line redirection, and
2433 found that STDIN was a pipe, and that you also tried to redirect STDIN using
2434 'E<lt>'. Only one STDIN stream to a customer, please.
2436 =item '|' and 'E<gt>' may not both be specified on command line
2438 (F) An error peculiar to VMS. Perl does its own command line redirection, and
2439 thinks you tried to redirect stdout both to a file and into a pipe to another
2440 command. You need to choose one or the other, though nothing's stopping you
2441 from piping into a program or Perl script which 'splits' output into two
2444 open(OUT,">$ARGV[0]") or die "Can't write to $ARGV[0]: $!";
2451 =item Got an error from DosAllocMem:
2453 (P) An error peculiar to OS/2. Most probably you use an obsolete version
2454 of perl, and should not happen anyway.
2456 =item Malformed PERLLIB_PREFIX
2458 (F) An error peculiar to OS/2. PERLLIB_PREFIX should be of the form
2466 with non-empty prefix1 and prefix2. If C<prefix1> is indeed a prefix of
2467 a builtin library search path, prefix2 is substituted. The error may appear
2468 if components are not found, or are too long. See L<perlos2/"PERLLIB_PREFIX">.
2470 =item PERL_SH_DIR too long
2472 (F) An error peculiar to OS/2. PERL_SH_DIR is the directory to find the
2473 C<sh>-shell in. See L<perlos2/"PERL_SH_DIR">.
2475 =item Process terminated by SIG%s
2477 (W) This is a standard message issued by OS/2 applications, while *nix
2478 applications die in silence. It is considered a feature of the OS/2
2479 port. One can easily disable this by appropriate sighandlers, see
2480 L<perlipc/"Signals">. See L<perlos2/"Process terminated by SIGTERM/SIGINT">.