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Man Page for PERLDIAG




NAME
     perldiag - various Perl diagnostics

DESCRIPTION
     These messages are classified as follows (listed in
     increasing order of desperation):

         (W) A warning (optional).
         (D) A deprecation (optional).
         (S) A severe warning (mandatory).
         (F) A fatal error (trappable).
         (P) An internal error you should never see  (trappable).
         (X) A very fatal error (non-trappable).

     Optional warnings are enabled by using the -w switch.
     Trappable errors may be trapped using the eval operator.
     See the eval entry in the perlfunc manpage.

     Some of these messages are generic.  Spots that vary are
     denoted with a %s, just as in a printf format.  Note that
     some message start with a %s!  The symbols "%-?@ sort before
     the letters, while [ and  sort after.
     " .nr )I my"n

          (F) Lexically scoped variables aren't in a package, so
          it doesn't make sense to try to declare one with a
          package qualifier on the front.  Use local() if you
          want to localize a package variable.
          " .nr )I no"n

          (F) The "no" keyword is recognized and executed at
          compile time, and returns no useful value.  See the
          perlmod manpage.
          " .nr )I use"n

          (F) The "use" keyword is recognized and executed at
          compile time, and returns no useful value.  See the
          perlmod manpage.

     % may only be used in unpack
         (F) You can't pack a string by supplying a checksum,
         since the checksumming process loses information, and
         you can't go the other way.  See the unpack entry in the
         perlfunc manpage.

     %s (...) interpreted as function
         (W) You've run afoul of the rule that says that any list
         operator followed by parentheses turns into a function,
         with all the list operators arguments found inside the
         parens.  See the section on Terms and List Operators
         (Leftward) in the perlop manpage.



     %s argument is not a HASH element
         (F) The argument to delete() or exists() must be a hash
         element, such as

             $foo{$bar}
             $ref->[12]->{"susie"}


     %s did not return a true value
         (F) A required (or used) file must return a true value
         to indicate that it compiled correctly and ran its
         initialization code correctly.  It's traditional to end
         such a file with a "1;", though any true value would do.
         See the require entry in the perlfunc manpage.

     %s found where operator expected
         (S) The Perl lexer knows whether to expect a term or an
         operator.  If it sees what it knows to be a term when it
         was expecting to see an operator, it gives you this
         warning.  Usually it indicates that an operator or
         delimiter was omitted, such as a semicolon.

     %s had compilation errors.
         (F) The final summary message when a perl -c fails.

     %s has too many errors.
         (F) The parser has given up trying to parse the program
         after 10 errors.  Further error messages would likely be
         uninformative.

     %s matches null string many times
         (W) The pattern you've specified would be an infinite
         loop if the regular expression engine didn't
         specifically check for that.  See the perlre manpage.

     %s never introduced
         (S) The symbol in question was declared but somehow went
         out of scope before it could possibly have been used.

     %s syntax OK
         (F) The final summary message when a perl -c succeeds.

     -P not allowed for setuid/setgid script
         (F) The script would have to be opened by the C
         preprocessor by name, which provides a race condition
         that breaks security.

     -T and -B not implemented on filehandles
         (F) Perl can't peek at the stdio buffer of filehandles
         when it doesn't know about your kind of stdio.  You'll
         have to use a filename instead.



     ?+* follows nothing in regexp
         (F) You started a regular expression with a  quantifier.
         Backslash it if you meant it literally.   See the perlre
         manpage.

     @ outside of string
         (F) You had a pack template that specified an absolution
         position outside the string being unpacked.  See the
         pack entry in the perlfunc manpage.

     accept() on closed fd
         (W) You tried to do an accept on a closed socket.  Did
         you forget to check the return value of your socket()
         call?  See the accept entry in the perlfunc manpage.

     Allocation too large: %lx
         (F) You can't allocate more than 64K on an MSDOS
         machine.

     Arg too short for msgsnd
         (F) msgsnd() requires a string at least as long as
         sizeof(long).

     Args must match #! line
         (F) The setuid emulator requires that the arguments Perl
         was invoked with match the arguments specified on the #!
         line.
         " .nr )I %s"n

     Argument
         (W) The indicated string was fed as an argument to an
         operator that expected a numeric value instead.  If
         you're fortunate the message will identify which
         operator was so unfortunate.

     Array @%s missing the @ in argument %d of %s()
         (D) Really old Perl let you omit the @ on array names in
         some spots.  This is now heavily deprecated.

     assertion botched: %s
         (P) The malloc package that comes with Perl had an
         internal failure.
         "" .nr )I %s""n

     Assertion failed: file
         (P) A general assertion failed.  The file in question
         must be examined.

     Assignment to both a list and a scalar
         (F) If you assign to a conditional operator, the 2nd and
         3rd arguments must either both be scalars or both be
         lists.  Otherwise Perl won't know which context to
         supply to the right side.

     Attempt to free non-arena SV: 0x%lx
         (P) All SV objects are supposed to be allocated from
         arenas that will be garbage collected on exit.  An SV
         was discovered to be outside any of those arenas.

     Attempt to free temp prematurely
         (W) Mortalized values are supposed to be freed by the
         free_tmps() routine.  This indicates that something else
         is freeing the SV before the free_tmps() routine gets a
         chance, which means that the free_tmps() routine will be
         freeing an unreferenced scalar when it does try to free
         it.

     Attempt to free unreferenced glob pointers
         (P) The reference counts got screwed up on symbol
         aliases.

     Attempt to free unreferenced scalar
         (W) Perl went to decrement the reference count of a
         scalar to see if it would go to 0, and discovered that
         it had already gone to 0 earlier, and should have been
         freed, and in fact, probably was freed.  This could
         indicate that SvREFCNT_dec() was called too many times,
         or that SvREFCNT_inc() was called too few times, or that
         the SV was mortalized when it shouldn't have been, or
         that memory has been corrupted.

     Bad arg length for %s, is %d, should be %d
         (F) You passed a buffer of the wrong size to one of
         msgctl(), semctl() or shmctl().  In C parlance, the
         correct sized are, respectively,
         sizeof(struct msqid_ds *), sizeof(struct semid_ds *) and
         sizeof(struct shmid_ds *).

     Bad associative array
         (P) One of the internal hash routines was passed a null
         HV pointer.

     Bad filehandle: %s
         (F) A symbol was passed to something wanting a
         filehandle, but the symbol has no filehandle associated
         with it.  Perhaps you didn't do an open(), or did it in
         another package.

     Bad free() ignored
         (S) An internal routine called free() on something that
         had never been malloc()ed in the first place.

     Bad name after %s::
         (F) You started to name a symbol by using a package


         prefix, and then didn't finish the symbol.  In
         particular, you can't interpolate outside of quotes, so

             $var = 'myvar';
             $sym = mypack::$var;

         is not the same as

             $var = 'myvar';
             $sym = "mypack::$var";


     Bad symbol for array
         (P) An internal request asked to add an array entry to
         something that wasn't a symbol table entry.

     Bad symbol for filehandle
         (P) An internal request asked to add a filehandle entry
         to something that wasn't a symbol table entry.

     Bad symbol for hash
         (P) An internal request asked to add a hash entry to
         something that wasn't a symbol table entry.

     BEGIN failed--compilation aborted
         (F) An untrapped exception was raised while executing a
         BEGIN subroutine.  Compilation stops immediately and the
         interpreter is exited.

     bind() on closed fd
         (W) You tried to do a bind on a closed socket.  Did you
         forget to check the return value of your socket()  call?
         See the bind entry in the perlfunc manpage.

     Callback called exit
         (F) A subroutine invoked from an external package via
         perl_call_sv() exited by calling exit.
         " .nr )I last"n

     Can't
         (F) A "last" statement was executed to break out of the
         current block, except that there's this itty bitty
         problem called there isn't a current block.  Note that
         an "if" or "else" block doesn't count as a "loopish"
         block.  You can usually double the curlies to get the
         same effect though, since the inner curlies will be
         considered a block that loops once.  See the last entry
         in the perlfunc manpage.
         " .nr )I next"n

     Can't
         (F) A "next" statement was executed to reiterate the


         current block, but there isn't a current block.  Note
         that an "if" or "else" block doesn't count as a
         "loopish" block.  You can usually double the curlies to
         get the same effect though, since the inner curlies will
         be considered a block that loops once.  See the last
         entry in the perlfunc manpage.
         " .nr )I redo"n

     Can't
         (F) A "redo" statement was executed to restart the
         current block, but there isn't a current block.  Note
         that an "if" or "else" block doesn't count as a
         "loopish" block.  You can usually double the curlies to
         get the same effect though, since the inner curlies will
         be considered a block that loops once.  See the last
         entry in the perlfunc manpage.

     Can't bless non-reference value
         (F) Only hard references may be blessed.  This is how
         Perl "enforces" encapsulation of objects.  See the
         perlobj manpage.

     Can't break at that line
         (S) A warning intended for while running within the
         debugger, indicating the line number specified wasn't
         the location of a statement that could be stopped at.
         " .nr )I %s"n

     Can't call method
         (F) You called a method correctly, and it correctly
         indicated a package functioning as a class, but that
         package doesn't have ANYTHING defined in it, let alone
         methods.  See the perlobj manpage.
         " .nr )I %s"n

     Can't call method
         (F) A method call must know what package it's supposed
         to run in.  It ordinarily finds this out from the object
         reference you supply, but you didn't supply an object
         reference in this case.  A reference isn't an object
         reference until it has been blessed.  See the perlobj
         manpage.
         " .nr )I %s"n

     Can't call method
         (F) You used the syntax of a method call, but the slot
         filled by the object reference or package name contains
         an expression that returns neither an object reference
         nor a package name.  (Perhaps it's null?) Something like
         this will reproduce the error:




             $BADREF = undef;
             process $BADREF 1,2,3;
             $BADREF->process(1,2,3);


     Can't chdir to %s
         (F) You called perl -x/foo/bar, but /foo/bar is not a
         directory that you can chdir to, possibly because it
         doesn't exist.

     Can't coerce %s to integer in %s
         (F) Certain types of SVs, in particular real symbol
         table entries (type GLOB), can't be forced to stop being
         what they are.  So you can't say things like:

             *foo += 1;

         You CAN say

             $foo = *foo;
             $foo += 1;

         but then $foo no longer contains a glob.

     Can't coerce %s to number in %s
         (F) Certain types of SVs, in particular real symbol
         table entries (type GLOB), can't be forced to stop being
         what they are.

     Can't coerce %s to string in %s
         (F) Certain types of SVs, in particular real symbol
         table entries (type GLOB), can't be forced to stop being
         what they are.

     Can't create pipe mailbox
         (F) An error peculiar to VMS.

     Can't declare %s in my
         (F) Only scalar, array and hash variables may be
         declared as lexical variables.  They must have ordinary
         identifiers as names.

     Can't do inplace edit on %s: %s
         (S) The creation of the new file failed for the
         indicated reason.

     Can't do inplace edit without backup
         (F) You're on a system such as MSDOS that gets confused
         if you try reading from a deleted (but still opened)
         file.  You have to say -i.bak, or some such.

     Can't do inplace edit: %s > 14 characters
         (S) There isn't enough room in the filename to make a
         backup name for the file.

     Can't do inplace edit: %s is not a regular file
         (S) You tried to use the -i switch on a special file,
         such as a file in /dev, or a FIFO.  The file was
         ignored.

     Can't do setegid!
         (P) The setegid() call failed for some reason in the
         setuid emulator of suidperl.

     Can't do seteuid!
         (P) The setuid emulator of suidperl failed for some
         reason.

     Can't do setuid
         (F) This typically means that ordinary perl tried to
         exec suidperl to do setuid emulation, but couldn't exec
         it.  It looks for a name of the form sperl5.000 in the
         same directory that the perl executable resides under
         the name perl5.000, typically /usr/local/bin on Unix
         machines.  If the file is there, check the execute
         permissions.  If it isn't, ask your sysadmin why he
         and/or she removed it.

     Can't do waitpid with flags
         (F) This machine doesn't have either waitpid() or
         wait4(), so only waitpid() without flags is emulated.

     Can't do {n,m} with n > m
         (F) Minima must be less than or equal to maxima.  If you
         really want your regexp to match something 0 times, just
         put {0}.  See the perlre manpage.

     Can't emulate -%s on #! line
         (F) The #! line specifies a switch that doesn't make
         sense at this point.  For example, it'd be kind of silly
         to put a -x on the #! line.
         :"" .nr )I %s"":n

     Can't exec
         (W) An system(), exec() or piped open call could not
         execute the named program for the indicated reason.
         Typical reasons include: the permissions were wrong on
         the file, the file wasn't found in $ENV{PATH}, the
         executable in question was compiled for another
         architecture, or the #! line in a script points to an
         interpreter that can't be run for similar reasons.  (Or
         maybe your system doesn't support #! at all.)



     Can't exec %s
         (F) Perl was trying to execute the indicated program for
         you because that's what the #! line said.  If that's not
         what you wanted, you may need to mention "perl" on the
         #! line somewhere.

     Can't execute %s
         (F) You used the -S switch, but the script to execute
         could not be found in the PATH, or at least not with the
         correct permissions.

     Can't find label %s
         (F) You said to goto a label that isn't mentioned
         anywhere that it's possible for us to go to.  See the
         goto entry in the perlfunc manpage.

     Can't find string terminator %s anywhere before EOF
         (F) Perl strings can stretch over multiple lines.  This
         message means that the closing delimiter was omitted.
         Since bracketed quotes count nesting levels, the
         following is missing its final parenthesis:

             print q(The character '(' starts a side comment.)


     Can't fork
         (F) A fatal error occurred while trying to fork while
         opening a pipeline.

     Can't get pipe mailbox device name
         (F) An error peculiar to VMS.

     Can't get SYSGEN parameter value for MAXBUF
         (F) An error peculiar to VMS.

     Can't goto subroutine outside a subroutine
         (F) The deeply magical "goto subroutine" call can only
         replace one subroutine call for another.  It can't
         manufacture one out of whole cloth.  In general you
         should only be calling it out of an AUTOLOAD routine
         anyway.  See the goto entry in the perlfunc manpage.

     Can't locate %s in @INC
         (F) You said to do (or require, or use) a file that
         couldn't be found in any of the libraries mentioned in
         @INC.  Perhaps you need to set the PERL5LIB environment
         variable to say where the extra library is, or maybe the
         script needs to add the library name to @INC.  Or maybe
         you just misspelled the name of the file.  See the
         require entry in the perlfunc manpage.
         " .nr )I %s"n



     Can't locate object method
         (F) You called a method correctly, and it correctly
         indicated a package functioning as a class, but that
         package doesn't define that particular method, nor does
         any of it's base classes.  See the perlobj manpage.

     Can't locate package %s for @%s::ISA
         (W) The @ISA array contained the name of another package
         that doesn't seem to exist.

     Can't mktemp()
         (F) The mktemp() routine failed for some reason while
         trying to process a -e switch.  Maybe your /tmp
         partition is full, or clobbered.

     Can't modify %s in %s
         (F) You aren't allowed to assign to the item indicated,
         or otherwise try to change it, such as with an
         autoincrement.

     Can't modify non-existent substring
         (P) The internal routine that does assignment to a
         substr() was handed a NULL.

     Can't msgrcv to readonly var
         (F) The target of a msgrcv must be modifiable in order
         to be used as a receive buffer.

     Can't open %s: %s
         (S) An inplace edit couldn't open the original file for
         the indicated reason.  Usually this is because you don't
         have read permission for the file.

     Can't open bidirectional pipe
         (W) You tried to say open(CMD, "|cmd|"), which is not
         supported.  You can try any of several modules in the
         Perl library to do this, such as "open2.pl".
         Alternately, direct the pipe's output to a file using
         ">",  and then read it in under a different file handle.
         :"" .nr )I %s"":n

     Can't open perl script
         (F) The script you specified can't be opened for the
         indicated reason.

     Can't rename %s to %s: %s, skipping file
         (S) The rename done by the -i switch failed for some
         reason, probably because you don't have write permission
         to the directory.

     Can't reswap uid and euid
         (P) The setreuid() call failed for some reason in the
         setuid emulator of suidperl.

     Can't return outside a subroutine
         (F) The return statement was executed in mainline code,
         that is, where there was no subroutine call to return
         out of.  See the perlsub manpage.
         "" .nr )I %s""n

     Can't stat script
         (P) For some reason you can't fstat() the script even
         though you have it open already.  Bizarre.

     Can't swap uid and euid
         (P) The setreuid() call failed for some reason in the
         setuid emulator of suidperl.

     Can't take log of %g
         (F) Logarithms are only defined on positive real
         numbers.

     Can't take sqrt of %g
         (F) For ordinary real numbers, you can't take the square
         root of a negative number.  There's a Complex package
         available for Perl, though, if you really want to do
         that.

     Can't undef active subroutine
         (F) You can't undefine a routine that's currently
         running.  You can, however, redefine it while it's
         running, and you can even undef the redefined subroutine
         while the old routine is running.  Go figure.

     Can't unshift
         (F) You tried to unshift an "unreal" array that can't be
         unshifted, such as the main Perl stack.

     Can't upgrade that kind of scalar
         (P) The internal sv_upgrade routine adds "members" to an
         SV, making it into a more specialized kind of SV.  The
         top several SV types are so specialized, however, that
         they cannot be interconverted.  This message indicates
         that such a conversion was attempted.

     Can't upgrade to undef
         (P) The undefined SV is the bottom of the totem pole, in
         the scheme of upgradability.  Upgrading to undef
         indicates an error in the code calling sv_upgrade.

     Can't use %s as left arg of an implicit ->
         (F) The compiler tried to interpret a bracketed
         expression as a subscript to an array reference.  But to
         the left of the brackets was an expression that didn't


         end in an arrow (->), or look like a subscripted
         expression.  Only subscripted expressions with multiple
         subscripts are allowed to omit the intervening arrow.

     Can't use %s for loop variable
         (F) Only a simple scalar variable may be used as a loop
         variable on a foreach.

     Can't use %s ref as %s ref
         (F) You've mixed up your reference types.  You have to
         dereference a reference of the type needed.  You can use
         the ref() function to test the type of the reference, if
         need be.

     Can't use a string as %s ref while
         (F) Only hard references are allowed by "strict refs".
         Symbolic references are disallowed.  See the perlref
         manpage.

     Can't use an undefined value as %s reference
         (F) A value used as either a hard reference or a
         symbolic reference must be a defined value.  This helps
         to de-lurk some insidious errors.

     Can't use delimiter brackets within expression
         (F) The ${name} construct is for disambiguating
         identifiers in strings, not in ordinary code.
         "" .nr )I my""n

     Can't use global %s in
         (F) You tried to declare a magical variable as a lexical
         variable.  This is not allowed, because the magic can
         only be tied to one location (namely the global
         variable) and it would be incredibly confusing to have
         variables in your program that looked like magical
         variables but weren't.

     Can't write to temp file for -e: %s
         (F) The write routine failed for some reason while
         trying to process a -e switch.  Maybe your /tmp
         partition is full, or clobbered.

     Can't x= to readonly value
         (F) You tried to repeat a constant value (often the
         undefined value) with an assignment operator, which
         implies modifying the value itself.  Perhaps you need to
         copy the value to a temporary, and repeat that.

     Cannot open temporary file
         (F) The create routine failed for some reaon while
         trying to process a -e switch.  Maybe your /tmp
         partition is full, or clobbered.


     chmod: mode argument is missing initial 0
         (W) A novice will sometimes say

             chmod 777, $filename

         not realizing that 777 will be interpreted as a decimal
         number, equivalent to 01411.  Octal constants are
         introduced with a leading 0 in Perl, as in C.

     Close on unopened file <%s>
         (W) You tried to close a filehandle that was never
         opened.

     connect() on closed fd
         (W) You tried to do a connect on a closed socket.  Did
         you forget to check the return value of your socket()
         call?  See the connect entry in the perlfunc manpage.

     Corrupt malloc ptr 0x%lx at 0x%lx
         (P) The malloc package that comes with Perl had an
         internal failure.

     corrupted regexp pointers
         (P) The regular expression engine got confused by what
         the regular expression compiler gave it.

     corrupted regexp program
         (P) The regular expression engine got passed a regexp
         program without a valid magic number.
         "" .nr )I %s""n

     Deep recursion on subroutine
         (W) This subroutine has called itself (directly or
         indirectly) 100 times than it has returned.  This
         probably indicates an infinite recursion, unless you're
         writing strange benchmark programs, in which case it
         indicates something else.

     Did you mean $ instead of %?
         (W) You probably said %hash{$key} when you meant
         $hash{$key}.

     Don't know how to handle magic of type '%s'
         (P) The internal handling of magical variables has been
         cursed.

     do_study: out of memory
         (P) This should have been caught by safemalloc()
         instead.

     Duplicate free() ignored
         (S) An internal routine called free() on something that


         had already been freed.

     END failed--cleanup aborted
         (F) An untrapped exception was raised while executing an
         END subroutine.  The interpreter is immediately  exited.

     Execution of %s aborted due to compilation errors.
         (F) The final summary message when a Perl compilation
         fails.

     Exiting eval via %s
         (W) You are exiting an eval by unconventional means,
         such as a a goto, or a loop control statement.

     Exiting subroutine via %s
         (W) You are exiting a subroutine by unconventional
         means, such as a a goto, or a loop control statement.

     Exiting substitution via %s
         (W) You are exiting a substitution by unconventional
         means, such as a a return, a goto, or a loop control
         statement.

     Fatal $PUTMSG error: %d
         (F) An error peculiar to VMS.

     fcntl is not implemented
         (F) Your machine apparently doesn't implement fcntl().
         What is this, a PDP-11 or something?

     Filehandle %s never opened
         (W) An I/O operation was attempted on a filehandle that
         was never initialized.  You need to do an open() or a
         socket() call, or call a constructor from the FileHandle
         package.

     Filehandle %s opened only for input
         (W) You tried to write on a read-only filehandle.  If
         you intended it to be a read-write filehandle, you
         needed to open it with "+<" or "+>" or "+>>" instead of
         with "<" or nothing.  If you only intended to write the
         file, use ">" or ">>".  See the open entry in the
         perlfunc manpage.

     Filehandle only opened for input
         (W) You tried to write on a read-only filehandle.  If
         you intended it to be a read-write filehandle, you
         needed to open it with "+<" or "+>" or "+>>" instead of
         with "<" or nothing.  If you only intended to write the
         file, use ">" or ">>".  See the open entry in the
         perlfunc manpage.



     Final $ should be or $name
         (F) You must now decide whether the final $ in a string
         was meant to be a literal dollar sign, or was meant to
         introduce a variable name that happens to be missing.
         So you have to put either the backslash or the name.

     Final @ should be @ or @name
         (F) You must now decide whether the final @ in a string
         was meant to be a literal "at" sign, or was meant to
         introduce a variable name that happens to be missing.
         So you have to put either the backslash or the name.

     Format %s redefined
         (W) You redefined a format.  To suppress this warning,
         say

             {
                 local $^W = 0;
                 eval "format NAME =...";
             }


     Format not terminated
         (F) A format must be terminated by a line with a
         solitary dot.  Perl got to the end of your file without
         finding such a line.

     Found = in conditional, should be ==
         (W) You said

             if ($foo = 123)

         when you meant

             if ($foo == 123)

         (or something like that).
         "" .nr )I %s""n

     gdbm store returned %d, errno %d, key
         (S) A warning from the GDBM_File extension that a store
         failed.

     gethostent not implemented
         (F) Your C library apparently doesn't implement
         gethostent(), probably because if it did, it'd feel
         morally obligated to return every hostname on the
         Internet.

     get{sock,peer}name() on closed fd
         (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?

     Glob not terminated
         (F) The lexer saw a left angle bracket in a place where
         it was expecting a term, so it's looking for the
         corresponding right angle bracket, and not finding it.
         Chances are you left some needed parentheses out earlier
         in the line, and you really meant a "less than".
         " .nr )I %s"n

     Global symbol
         (F) You've said "use strict vars", which indicates that
         all variables must either be lexically scoped (using
         "my"), or explicitly qualified to say which package the
         global variable is in (using "::").

     goto must have label
         (F) Unlike with "next" or "last", you're not allowed to
         goto an unspecified destination.  See the goto entry in
         the perlfunc manpage.

     Had to create %s unexpectedly
         (S) A routine asked for a symbol from a symbol table
         that ought to have existed already, but for some reason
         it didn't, and had to be created on an emergency basis
         to prevent a core dump.

     Hash %%s missing the % in argument %d of %s()
         (D) Really old Perl let you omit the % on hash names in
         some spots.  This is now heavily deprecated.
         " .nr )I %s::%s"n

     Identifier
         (W) Typographical errors often show up as unique
         identifiers.  If you had a good reason for having a
         unique identifier, then just mention it again somehow to
         suppress the message.

     Illegal division by zero
         (F) You tried to divide a number by 0.  Either something
         was wrong in your logic, or you need to put a
         conditional in to guard against meaningless input.

     Illegal modulus zero
         (F) You tried to divide a number by 0 to get the
         remainder.  Most numbers don't take to this kindly.

     Illegal octal digit
         (F) You used an 8 or 9 in a octal number.

     Insecure dependency in %s
         (F) You tried to do something that the tainting


         mechanism didn't like. The tainting mechanism is turned
         on when you're running setuid or setgid, or when you
         specify -T to turn it on explicitly.  The tainting
         mechanism labels all data that's derived directly or
         indirectly from the user, who is considered to be
         unworthy of your trust.  If any such data is used in a
         "dangerous" operation, you get this error.  See the
         perlsec manpage for more information.

     Insecure directory in %s
         (F) You can't use system(), exec(), or a piped open in a
         setuid or setgid script if $ENV{PATH} contains a
         directory that is writable by the world.  See the
         perlsec manpage.

     Insecure PATH
         (F) You can't use system(), exec(), or a piped open in a
         setuid or setgid script if $ENV{PATH} is derived from
         data supplied (or potentially supplied) by the user.
         The script must set the path to a known value, using
         trustworthy data.  See the perlsec manpage.

     internal disaster in regexp
         (P) Something went badly wrong in the regular expression
         parser.

     internal urp in regexp at /%s/
         (P) Something went badly awry in the regular expression
         parser.

     invalid [] range in regexp
         (F) The range specified in a character class had a
         minimum character greater than the maximum character.
         See the perlre manpage.

     ioctl is not implemented
         (F) Your machine apparently doesn't implement ioctl(),
         which is pretty strange for a machine that supports C.

     junk on end of regexp
         (P) The regular expression parser is confused.

     Label not found for
         (F) You named a loop to break out of, but you're not
         currently in a loop of that name, not even if you count
         where you were called from.  See the last entry in the
         perlfunc manpage.

     Label not found for
         (F) You named a loop to continue, but you're not
         currently in a loop of that name, not even if you count
         where you were called from.  See the last entry in the


         perlfunc manpage.

     Label not found for
         (F) You named a loop to restart, but you're not
         currently in a loop of that name, not even if you count
         where you were called from.  See the last entry in the
         perlfunc manpage.

     listen() on closed fd
         (W) You tried to do a listen on a closed socket.  Did
         you forget to check the return value of your socket()
         call?  See the listen entry in the perlfunc manpage.

     Literal @%s now requires backslash
         (F) It used to be that Perl would try to guess whether
         you wanted an array interpolated or a literal @.  It did
         this when the string was first used at runtime.  Now
         strings are parsed at compile time, and ambiguous
         instances of @ must be disambiguated, either by putting
         a backslash to indicate a literal, or by declaring (or
         using) the array within the program before the string
         (lexically).  (Someday it will simply assume that an
         unbackslashed @ interpolates an array.)

     Method for operation %s  not  found  in  package  %s  during
blessing
         (F) An attempt was made to specify an entry in an
         overloading table that doesn't somehow point to a valid
         method.  See the perlovl manpage.

     Might be a runaway multi-line %s string starting on line %d
         (S) An advisory indicating that the previous error may
         have been caused by a missing delimiter on a string or
         pattern, because it eventually ended earlier on the
         current line.

     Misplaced _ in number
         (W) An underline in a decimal constant wasn't on a 3-
         digit boundary.

     Missing $ on loop variable
         (F)  Apparently you've been programming in csh too much.
         Variables are always mentioned with the $ in Perl,
         unlike in the shells, where it can vary from one line to
         the next.

     Missing comma after first argument to %s function
         (F) While certain functions allow you to specify a
         filehandle or an "indirect object" before the argument
         list, this ain't one of them.

     Missing right bracket
         (F) The lexer counted more opening curly brackets


         (braces) than closing ones.  As a general rule, you'll
         find  it's missing near the place you were last editing.

     Missing semicolon on previous line?
         (S) This is an educated guess made in conjunction with
         the message "%s found where operator expected".  Don't
         automatically put a semicolon on the previous line just
         because you saw this message.

     Modification of a read-only value attempted
         (F) You tried, directly or indirectly, to change the
         value of a constant.  You didn't, of course, try "2 =
         1", since the compiler catches that.  But an easy way to
         do the same thing is:

             sub mod { $_[0] = 1 }
             mod(2);

         Another way is to assign to a substr() that's off the
         end of the string.

     Modification of non-
         creatable array value attempted, subscript %d
         (F) You tried to make an array value spring into
         existence, and the subscript was probably negative, even
         counting from end of the array backwards.
         "" .nr )I %s""n

     Modification of non-
         creatable hash value attempted, subscript
         (F) You tried to make a hash value spring into
         existence, and it couldn't be created for some peculiar
         reason.

     Module name must be constant
         (F) Only a bare module name is allowed as the first
         argument to a "use".

     msg%s not implemented
         (F) You don't have System V message IPC on your  system.

     Multidimensional syntax %s not supported
         (W) Multidimensional arrays aren't written like
         $foo[1,2,3].  They're written like $foo[1][2][3], as in
         C.

     Negative length
         (F) You tried to do a read/write/send/recv operation
         with a buffer length that is less than 0.  This is
         difficult to imagine.




     nested *?+ in regexp
         (F) You can't quantify a quantifier without intervening
         parens.  So things like ** or +* or ?* are illegal.

         Note, however, that the minimal matching quantifiers,
         *?, +? and ?? appear to be nested quantifiers, but
         aren't.  See the perlre manpage.

     No #! line
         (F) The setuid emulator requires that scripts have a
         well-formed #! line even on machines that don't support
         the #! construct.

     No %s allowed while running setuid
         (F) Certain operations are deemed to be too insecure for
         a setuid or setgid script to even be allowed to attempt.
         Generally speaking there will be another way to do what
         you want that is, if not secure, at least securable.
         See the perlsec manpage.

     No -e allowed in setuid scripts
         (F) A setuid script can't be specified by the user.

     No comma allowed after %s
         (F) A list operator that has a filehandle or "indirect
         object" is not allowed to have a comma between that and
         the following arguments.  Otherwise it'd be just another
         one of the arguments.

     No DB::DB routine defined
         (F) The currently executing code was compiled with the
         -d switch, but for some reason the perl5db.pl file (or
         some facsimile thereof) didn't define a routine to be
         called at the beginning of each statement.  Which is
         odd, because the file should have been required
         automatically, and should have blown up the require if
         it didn't parse right.

     No dbm on this machine
         (P) This is counted as an internal error, because every
         machine should supply dbm nowadays, since Perl comes
         with SDBM.  See the SDBM_File manpage.

     No DBsub routine
         (F) The currently executing code was compiled with the
         -d switch, but for some reason the perl5db.pl file (or
         some facsimile thereof) didn't define a DB::sub routine
         to be called at the beginning of each ordinary
         subroutine call.

     No Perl script found in input
         (F) You called perl -x, but no line was found in the


         file beginning with #! and containing the word "perl".

     No setregid available
         (F) Configure didn't find anything resembling the
         setregid() call for your system.

     No setreuid available
         (F) Configure didn't find anything resembling the
         setreuid() call for your system.

     No space allowed after -I
         (F) The argument to -I must follow the -I immediately
         with no intervening space.

     No such signal: SIG%s
         (W) You specified a signal name as a subscript to %SIG
         that was not recognized.  Say kill -l in your shell to
         see the valid signal names on your system.

     Not a CODE reference
         (F) Perl was trying to evaluate a reference to a code
         value (that is, a subroutine), but found a reference to
         something else instead.  You can use the ref() function
         to find out what kind of ref it really was.  See also
         the perlref manpage.

     Not a format reference
         (F) I'm not sure how you managed to generate a reference
         to an anonymous format, but this indicates you did, and
         that it didn't exist.

     Not a GLOB reference
         (F) Perl was trying to evaluate a reference to a "type
         glob" (that is, a symbol table entry that looks like
         *foo),  but found a reference to something else instead.
         You can use the ref() function to find out what kind of
         ref it really was.  See the perlref manpage.

     Not a HASH reference
         (F) Perl was trying to evaluate a reference to a hash
         value, but found a reference to something else  instead.
         You can use the ref() function to find out what kind of
         ref it really was.  See the perlref manpage.

     Not a perl script
         (F) The setuid emulator requires that scripts have a
         well-formed #! line even on machines that don't support
         the #! construct.  The line must mention perl.

     Not a SCALAR reference
         (F) Perl was trying to evaluate a reference to a scalar
         value,  but found a reference to something else instead.


         You can use the ref() function to find out what kind of
         ref it really was.  See the perlref manpage.

     Not a subroutine reference
         (F) Perl was trying to evaluate a reference to a code
         value (that is, a subroutine), but found a reference to
         something else instead.  You can use the ref() function
         to find out what kind of ref it really was.  See also
         the perlref manpage.

     Not a subroutine reference in %OVERLOAD
         (F) An attempt was made to specify an entry in an
         overloading table that doesn't somehow point to a valid
         subroutine.  See the perlovl manpage.

     Not an ARRAY reference
         (F) Perl was trying to evaluate a reference to an array
         value, but found a reference to something else  instead.
         You can use the ref() function to find out what kind of
         ref it really was.  See the perlref manpage.

     Not enough arguments for %s
         (F) The function requires more arguments than you
         specified.

     Not enough format arguments
         (W) A format specified more picture fields than the next
         line supplied.  See the perlform manpage.

     Null filename used
         (F) You can't require the null filename, especially
         since on many machines that means the current directory!
         See the require entry in the perlfunc manpage.

     NULL OP IN RUN
         (P) Some internal routine called run() with a null
         opcode pointer.

     Null realloc
         (P) An attempt was made to realloc NULL.

     NULL regexp argument
         (P) The internal pattern matching routines blew it
         bigtime.

     NULL regexp parameter
         (P) The internal pattern matching routines are out of
         their gourd.

     Odd number of elements in hash list
         (S) You specified an odd number of elements to a hash
         list, which is odd, since hash lists come in key/value


         pairs.

     oops: oopsAV
         (S)  An internal warning that the grammar is screwed up.

     oops: oopsHV
         (S) An internal warning that the grammar is screwed  up.

     Operation `%s' %s: no method found,
         (F) An attempt was made to use an entry in an
         overloading table that somehow no longer points to a
         valid method.  See the perlovl manpage.

     Out of memory for yacc stack
         (F) The yacc parser wanted to grow its stack so it could
         continue parsing, but realloc() wouldn't give it more
         memory, virtual or otherwise.

     Out of memory!
         (X) The malloc() function returned 0, indicating there
         was insufficient remaining memory (or virtual memory) to
         satisfy the request.

     page overflow
         (W) A single call to write() produced more lines than
         can fit on a page.  See the perlform manpage.

     panic: ck_grep
         (P) Failed an internal consistency check trying to
         compile a grep.

     panic: ck_split
         (P) Failed an internal consistency check trying to
         compile a split.

     panic: corrupt saved stack index
         (P) The savestack was requested to restore more
         localized values than there are in the savestack.

     panic: die %s
         (P) We popped the context stack to an eval context, and
         then discovered it wasn't an eval context.

     panic: do_match
         (P) The internal pp_match() routine was called with
         invalid operational data.

     panic: do_split
         (P) Something terrible went wrong in setting up for the
         split.




     panic: do_subst
         (P) The internal pp_subst() routine was called with
         invalid operational data.

     panic: do_trans
         (P) The internal do_trans() routine was called with
         invalid operational data.

     panic: goto
         (P) We popped the context stack to a context with the
         specified label, and then discovered it wasn't a context
         we know how to do a goto in.

     panic: INTERPCASEMOD
         (P) The lexer got into a bad state at a case modifier.

     panic: INTERPCONCAT
         (P) The lexer got into a bad state parsing a string with
         brackets.

     panic: last
         (P) We popped the context stack to a block context, and
         then discovered it wasn't a block context.

     panic: leave_scope clearsv
         (P) A writable lexical variable became readonly somehow
         within the scope.

     panic: leave_scope inconsistency
         (P) The savestack probably got out of sync.  At least,
         there was an invalid enum on the top of it.

     panic: malloc
         (P) Something requested a negative number of bytes of
         malloc.

     panic: mapstart
         (P) The compiler is screwed up with respect to the map()
         function.

     panic: null array
         (P) One of the internal array routines was passed a null
         AV pointer.

     panic: pad_alloc
         (P) The compiler got confused about which scratch pad it
         was allocating and freeing temporaries and lexicals
         from.

     panic: pad_free curpad
         (P) The compiler got confused about which scratch pad it
         was allocating and freeing temporaries and lexicals


         from.

     panic: pad_free po
         (P) An invalid scratch pad offset was detected
         internally.

     panic: pad_reset curpad
         (P) The compiler got confused about which scratch pad it
         was allocating and freeing temporaries and lexicals
         from.

     panic: pad_sv po
         (P) An invalid scratch pad offset was detected
         internally.

     panic: pad_swipe curpad
         (P) The compiler got confused about which scratch pad it
         was allocating and freeing temporaries and lexicals
         from.

     panic: pad_swipe po
         (P) An invalid scratch pad offset was detected
         internally.

     panic: pp_iter
         (P) The foreach iterator got called in a non-loop
         context frame.

     panic: realloc
         (P) Something requested a negative number of bytes of
         realloc.

     panic: restartop
         (P) Some internal routine requested a goto (or something
         like it), and didn't supply the destination.

     panic: return
         (P) We popped the context stack to a subroutine or eval
         context, and then discovered it wasn't a subroutine or
         eval context.

     panic: scan_num
         (P) scan_num() got called on something that wasn't a
         number.

     panic: sv_insert
         (P) The sv_insert() routine was told to remove more
         string than there was string.

     panic: top_env
         (P) The compiler attempted to do a goto, or something
         weird like that.


     panic: yylex
         (P) The lexer got into a bad state while processing a
         case modifier.
         " .nr )I %s"n

     Parens missing around
         (W) You said something like

             my $foo, $bar = @_;

         when you meant

             my ($foo, $bar) = @_;

         Remember that "my" and "local" bind closer than comma.

     Perl %3.3f required--this is only version %s, stopped
         (F) The module in question uses features of a version of
         Perl more recent than the currently running version.
         How long has it been since you upgraded, anyway?  See
         the require entry in the perlfunc manpage.

     Permission denied
         (F) The setuid emulator in suidperl decided you were up
         to no good.

     POSIX getpgrp can't take an argument
         (F) Your C compiler uses POSIX getpgrp(), which takes no
         argument, unlike the BSD version, which takes a pid.

     Possible memory corruption: %s overflowed 3rd argument
         (F) An ioctl() or fcntl() returned more than Perl was
         bargaining for.  Perl guesses a reasonable buffer size,
         but puts a sentinel byte at the end of the buffer just
         in case.  This sentinel byte got clobbered, and Perl
         assumes that memory is now corrupted.  See the ioctl
         entry in the perlfunc manpage.

     Precedence problem: open %s should be open(%s)
         (S) The old irregular construct

             open FOO || die;

         is now misinterpreted as

             open(FOO || die);

         because of the strict regularization of Perl 5's grammar
         into unary and list operators.  (The old open was a
         little of both.) You must put parens around the
         filehandle, or use the new "or" operator instead of
         "||".


     print on closed filehandle %s
         (W) The filehandle you're printing on got itself closed
         sometime before now.  Check your logic flow.

     printf on closed filehandle %s
         (W) The filehandle you're writing to got itself closed
         sometime before now.  Check your logic flow.

     Probable precedence problem on %s
         (W) The compiler found a bare word where it expected a
         conditional, which often indicates that an || or && was
         parsed as part of the last argument of the previous
         construct, for example:

             open FOO || die;


     Read on closed filehandle <%s>
         (W) The filehandle you're reading from got itself closed
         sometime before now.  Check your logic flow.

     Reallocation too large: %lx
         (F) You can't allocate more than 64K on an MSDOS
         machine.

     Recompile perl with -DDEBUGGING to use -D switch
         (F) You can't use the -D option unless the code to
         produce the desired output is compiled into Perl, which
         entails some overhead, which is why it's currently left
         out of your copy.

     Recursive inheritance detected
         (F) More than 100 levels of inheritance were used.
         Probably indicates an unintended loop in your
         inheritance hierarchy.

     Reference miscount in sv_replace()
         (W) The internal sv_replace() function was handed a new
         SV with a reference count of other than 1.

     regexp memory corruption
         (P) The regular expression engine got confused by what
         the regular expression compiler gave it.

     regexp out of space
         (P) A "can't happen" error, because safemalloc() should
         have caught it earlier.

     regexp too big
         (F) The current implementation of regular expression
         uses shorts as address offsets within a string.
         Unfortunately this means that if the regular expression


         compiles to longer than 32767, it'll blow up.  Usually
         when you want a regular expression this big, there is a
         better way to do it with multiple statements.  See the
         perlre manpage.

     Reversed %s= operator
         (W) You wrote your assignment operator backwards.  The =
         must always comes last, to avoid ambiguity with
         subsequent unary operators.

     Runaway format
         (F) Your format contained the ~~ repeat-until-blank
         sequence, but it produced 200 lines at once, and the
         200th line looked exactly like the 199th line.
         Apparently you didn't arrange for the arguments to
         exhaust themselves, either by using ^ instead of @ (for
         scalar variables), or by shifting or popping (for array
         variables).  See the perlform manpage.

     Scalar value @%s[%s] better written as $%s[%s]
         (W) You've used an array slice (indicated by @) to
         select a single value of an array.  Generally it's
         better to ask for a scalar value (indicated by $).  The
         difference is that $foo[&bar] always behaves like a
         scalar, both when assigning to it and when evaluating
         its argument, while @foo[&bar] behaves like a list when
         you assign to it, and provides a list context to its
         subscript, which can do weird things if you're only
         expecting one subscript.

     Script is not setuid/setgid in suidperl
         (F) Oddly, the suidperl program was invoked on a script
         with its setuid or setgid bit set.  This doesn't make
         much sense.

     Search pattern not terminated
         (F) The lexer couldn't find the final delimiter of a //
         or m{} construct.  Remember that bracketing delimiters
         count nesting level.

     seek() on unopened file
         (W) You tried to use the seek() function on a filehandle
         that was either never opened or has been closed since.

     select not implemented
         (F) This machine doesn't implement the select() system
         call.

     sem%s not implemented
         (F) You don't have System V semaphore IPC on your
         system.



     semi-panic: attempt to dup freed string
         (S) The internal newSVsv() routine was called to
         duplicate a scalar that had previously been marked as
         free.

     Semicolon seems to be missing
         (W) A nearby syntax error was probably caused by a
         missing semicolon, or possibly some other missing
         operator, such as a comma.

     Send on closed socket
         (W) The filehandle you're sending to got itself closed
         sometime before now.  Check your logic flow.

     Sequence (?#... not terminated
         (F) A regular expression comment must be terminated by a
         closing parenthesis.  Embedded parens aren't allowed.
         See the perlre manpage.

     Sequence (?%s...) not implemented
         (F) A proposed regular expression extension has the
         character reserved but has not yet been written.  See
         the perlre manpage.

     Sequence (?%s...) not recognized
         (F) You used a regular expression extension that doesn't
         make sense.  See the perlre manpage.

     setegid() not implemented
         (F) You tried to assign to $), and your operating system
         doesn't support the setegid() system call (or
         equivalent), or at least Configure didn't think so.

     seteuid() not implemented
         (F) You tried to assign to $>, and your operating system
         doesn't support the seteuid() system call (or
         equivalent), or at least Configure didn't think so.

     setrgid() not implemented
         (F) You tried to assign to $(, and your operating system
         doesn't support the setrgid() system call (or
         equivalent), or at least Configure didn't think so.

     setruid() not implemented
         (F) You tried to assign to $<, and your operating system
         doesn't support the setruid() system call (or
         equivalent), or at least Configure didn't think so.

     Setuid/gid script is writable by world
         (F) The setuid emulator won't run a script that is
         writable by the world, because the world might have
         written on it already.


     shm%s not implemented
         (F) You don't have System V shared memory IPC on your
         system.

     shutdown() on closed fd
         (W) You tried to do a shutdown on a closed socket.
         Seems a bit superfluous.
         " .nr )I %s"n

     SIG%s handler
         (W) The signal handler named in %SIG doesn't, in fact,
         exist.  Perhaps you put it into the wrong package?

     sort is now a reserved word
         (F) An ancient error message that almost nobody ever
         runs into anymore.  But before sort was a keyword,
         people sometimes used it as a filehandle.

     Sort subroutine didn't return a numeric value
         (F) A sort comparison routine must return a number.  You
         probably blew it by not using C<<=> or cmp, or by not
         using them correctly.  See the sort entry in the
         perlfunc manpage.

     Sort subroutine didn't return single value
         (F) A sort comparison subroutine may not return a list
         value with more or less than one element.  See the sort
         entry in the perlfunc manpage.

     Split loop
         (P) The split was looping infinitely.  (Obviously, a
         split shouldn't iterate more times than there are
         characters of input, which is what happened.) See the
         split entry in the perlfunc manpage.

     Stat on unopened file <%s>
         (W) You tried to use the stat() function (or an
         equivalent file test) on a filehandle that was either
         never opened or has been closed since.

     Statement unlikely to be reached
         (W) You did an exec() with some statement after it other
         than a die().  This is almost always an error, because
         exec() never returns unless there was a failure.  You
         probably wanted to use system() instead, which does
         return.  To suppress this warning, put the exec() in a
         block by itself.

     Subroutine %s redefined
         (W) You redefined a subroutine.  To suppress this
         warning, say



             {
                 local $^W = 0;
                 eval "sub name { ... }";
             }


     Substitution loop
         (P) The substitution was looping infinitely.
         (Obviously, a substitution shouldn't iterate more times
         than there are characters of input, which is what
         happened.) See the discussion of substitution in the
         section on Quote and Quotelike Operators in the perlop
         manpage.

     Substitution pattern not terminated
         (F) The lexer couldn't find the interior delimiter of a
         s/// or s{}{} construct.  Remember that bracketing
         delimiters count nesting level.

     Substitution replacement not terminated
         (F) The lexer couldn't find the final delimiter of a
         s/// or s{}{} construct.  Remember that bracketing
         delimiters count nesting level.

     substr outside of string
         (W) You tried to reference a substr() that pointed
         outside of a string.  That is, the absolute value of the
         offset was larger than the length of the string.  See
         the substr entry in the perlfunc manpage.

     suidperl is no longer needed since...
         (F) Your Perl was compiled with
         -DSETUID_SCRIPTS_ARE_SECURE_NOW, but a version of the
         setuid emulator somehow got run anyway.

     syntax error
         (F) Probably means you had a syntax error.  Common
         reasons include:

             A keyword is misspelled.
             A semicolon is missing.
             A comma is missing.
             An opening or closing parenthesis is missing.
             An opening or closing brace is missing.
             A closing quote is missing.

         Often there will be another error message associated
         with the syntax error giving more information.
         (Sometimes it helps to turn on -w.) The error message
         itself often tells you where it was in the line when it
         decided to give up.  Sometimes the actual error is
         several tokens before this, since Perl is good at


         understanding random input.  Occasionally the line
         number may be misleading, and once in a blue moon the
         only way to figure out what's triggering the error is to
         call perl -c repeatedly, chopping away half the program
         each time to see if the error went away.  Sort of the
         cybernetic version of 20 questions.

     System V IPC is not implemented on this machine
         (F) You tried to do something with a function beginning
         with "sem", "shm" or "msg".  See the semctl entry in the
         perlfunc manpage, for example.

     Syswrite on closed filehandle
         (W) The filehandle you're writing to got itself closed
         sometime before now.  Check your logic flow.

     tell() on unopened file
         (W) You tried to use the tell() function on a filehandle
         that was either never opened or has been closed since.

     Test on unopened file <%s>
         (W) You tried to invoke a file test operator on a
         filehandle that isn't open.  Check your logic.  See also
         the section on -X in the perlfunc manpage.

     That use of $[ is unsupported
         (F) Assignment to $[ is now strictly circumscribed, and
         interpreted as a compiler directive.  You may only say
         one of

             $[ = 0;
             $[ = 1;
             ...
             local $[ = 0;
             local $[ = 1;
             ...

         This is to prevent the problem of one module changing
         the array base out from under another module
         inadvertently.  See the section on $[ in the perlvar
         manpage.

     The %s function is unimplemented
         The function indicated isn't implemented on this
         architecture, according to the probings of Configure.

     The crypt() function is unimplemented due to excessive para-
noia.
         (F) Configure couldn't find the crypt() function on your
         machine, probably because your vendor didn't supply it,
         probably because they think the U.S. Govermnment thinks
         it's a secret, or at least that they will continue to
	 pretend that it is.  And if you quote me on that, I will
         deny it.

     The stat preceding -l _ wasn't an lstat
         (F) It makes no sense to test the current stat buffer
         for symbolic linkhood if the last stat that wrote to the
         stat buffer already went past the symlink to get to the
         real file.  Use an actual filename instead.

     times not implemented
         (F) Your version of the C library apparently doesn't do
         times().  I suspect you're not running on Unix.

     Too few args to syscall
         (F) There has to be at least one argument to syscall()
         to specify the system call to call, silly dilly.

     Too many args to syscall
         (F) Perl only supports a maximum of 14 args to
         syscall().

     Too many arguments for %s
         (F) The function requires fewer arguments than you
         specified.

     trailing  in regexp
         (F) The regular expression ends with an unbackslashed
         backslash.  Backslash it.   See the perlre manpage.

     Translation pattern not terminated
         (F) The lexer couldn't find the interior delimiter of a
         tr/// or tr[][] construct.

     Translation replacement not terminated
         (F) The lexer couldn't find the final delimiter of a
         tr/// or tr[][] construct.

     truncate not implemented
         (F) Your machine doesn't implement a file truncation
         mechanism that Configure knows about.

     Type of arg %d to %s must be %s (not %s)
         (F) This function requires the argument in that position
         to be of a certain type.  Arrays must be @NAME or
         @{EXPR}.  Hashes must be %NAME or %{EXPR}.  No implicit
         dereferencing is allowed--use the {EXPR} forms as an
         explicit dereference.  See the perlref manpage.

     umask: argument is missing initial 0
         (W) A umask of 222 is incorrect.  It should be 0222,
         since octal literals always start with 0 in Perl, as in
         C.



     Unbalanced context: %d more PUSHes than POPs
         (W) The exit code detected an internal inconsistency in
         how many execution contexts were entered and left.

     Unbalanced saves: %d more saves than restores
         (W) The exit code detected an internal inconsistency in
         how many values were temporarily localized.

     Unbalanced scopes: %d more ENTERs than LEAVEs
         (W) The exit code detected an internal inconsistency in
         how many blocks were entered and left.

     Unbalanced tmps: %d more allocs than frees
         (W) The exit code detected an internal inconsistency in
         how many mortal scalars were allocated and freed.
         " .nr )I %s"n

     Undefined format
         (F) The format indicated doesn't seem to exist.  Perhaps
         it's really in another package?  See the perlform
         manpage.
         " .nr )I %s"n

     Undefined sort subroutine
         (F) The sort comparison routine specified doesn't seem
         to exist.  Perhaps it's in a different package?  See the
         sort entry in the perlfunc manpage.

     Undefined subroutine &%s called
         (F) The subroutine indicated hasn't been defined, or if
         it was, it has since been undefined.

     Undefined subroutine called
         (F) The anonymous subroutine you're trying to call
         hasn't been defined, or if it was, it has since been
         undefined.

     Undefined subroutine in sort
         (F) The sort comparison routine specified is declared
         but doesn't seem to have been defined yet.  See the sort
         entry in the perlfunc manpage.

     unexec of %s into %s failed!
         (F) The unexec() routine failed for some reason.  See
         your local FSF representative, who probably put it there
         in the first place.

     Unknown BYTEORDER
         (F) There are no byteswapping functions for a machine
         with this byte order.




     unmatched () in regexp
         (F) Unbackslashed parentheses must always be balanced in
         regular expressions.  If you're a vi user, the % key is
         valuable for finding the matching paren.  See the perlre
         manpage.

     Unmatched right bracket
         (F) The lexer counted more closing curly brackets
         (braces) than opening ones, so you're probably missing
         an opening bracket.  As a general rule, you'll find the
         missing one (so to speak) near the place you were last
         editing.

     unmatched [] in regexp
         (F) The brackets around a character class must match.
         If you wish to include a closing bracket in a character
         class, backslash it or put it first.  See the perlre
         manpage.
         " .nr )I %s"n

     Unquoted string
         (W) You used a bare word that might someday be claimed
         as a reserved word.  It's best to put such a word in
         quotes, or capitalize it somehow, or insert an underbar
         into it.  You might also declare it as a subroutine.

     Unrecognized character 03o ignored
         (S) A garbage character was found in the input, and
         ignored, in case it's a weird control character on an
         EBCDIC machine, or some such.
         "" .nr )I %s""n

     Unrecognized signal name
         (F) You specified a signal name to the kill() function
         that was not recognized.  Say kill -l in your shell to
         see the valid signal names on your system.

     Unrecognized switch: -%s
         (F) You specified an illegal option to Perl.  Don't do
         that.  (If you think you didn't do that, check the #!
         line to see if it's supplying the bad switch on your
         behalf.)

     Unsuccessful %s on filename containing newline
         (W) A file operation was attempted on a filename, and
         that operation failed, PROBABLY because the filename
         contained a newline, PROBABLY because you forgot to
         chop() or chomp() it off.  See the chop entry in the
         perlfunc manpage.
         " .nr )I %s"n

     Unsupported directory function
         (F) Your machine doesn't support opendir() and
         readdir().

     Unsupported function %s
         (F) This machines doesn't implement the indicated
         function, apparently.  At least, Configure doesn't think
         so.
         " .nr )I %s"n

     Unsupported socket function
         (F) Your machine doesn't support the Berkeley socket
         mechanism, or at least that's what Configure thought.

     Unterminated <> operator
         (F) The lexer saw a left angle bracket in a place where
         it was expecting a term, so it's looking for the
         corresponding right angle bracket, and not finding it.
         Chances are you left some needed parentheses out earlier
         in the line, and you really meant a "less than".

     Use of $# is deprecated
         (D) This was an ill-advised attempt to emulate a poorly
         defined awk feature.  Use an explicit printf() or
         sprintf() instead.

     Use of $* is deprecated
         (D) This variable magically turned on multiline pattern
         matching, both for you and for any luckless subroutine
         that you happen to call.  You should use the new //m and
         //s modifiers now to do that without the dangerous
         action-at-a-distance effects of $*.

     Use of %s is deprecated
         (D) The construct indicated is no longer recommended for
         use, generally because there's a better way to do it,
         and also because the old way has bad side effects.

     Use of implicit split to @_ is deprecated
         (D) It makes a lot of work for the compiler when you
         clobber a subroutine's argument list, so it's better if
         you assign the results of a split() explicitly to an
         array (or list).

     Use of uninitialized value
         (W) An undefined value was used as if it were already
         defined.  It was interpreted as a "" or a 0, but maybe
         it was a mistake.  To suppress this warning assign an
         initial value to your variables.

     Useless use of %s in void context
         (W) You did something without a side effect in a context
         that does nothing with the return value, such as a
         statement that doesn't return a value from a block, or
         the left side of a scalar comma operator.  Very often
         this points not to stupidity on your part, but a failure
         of Perl to parse your program the way you thought it
         would.  For example, you'd get this if you mixed up your
         C precedence with Python precedence and said

             $one, $two = 1, 2;

         when you meant to say

             ($one, $two) = (1, 2);


     Warning: unable to close filehandle %s properly.
         (S) The implicit close() done by an open() got an error
         indication on the close(0.  This usually indicates your
         filesystem ran out of disk space.
         " .nr )I %s"n

     Warning: Use of
         (S) You wrote a unary operator followed by something
         that looks like a binary operator that could also have
         been interpreted as a term or unary operator.  For
         instance, if you know that the rand function has a
         default argument of 1.0, and you write

             rand + 5;

         you may THINK you wrote the same thing as

             rand() + 5;

         but in actual fact, you got

             rand(+5);

         So put in parens to say what you really mean.

     Write on closed filehandle
         (W) The filehandle you're writing to got itself closed
         sometime before now.  Check your logic flow.

     X outside of string
         (F) You had a pack template that specified a relative
         position before the beginning of the string being
         unpacked.  See the pack entry in the perlfunc manpage.

     x outside of string
         (F) You had a pack template that specified a relative
         position after the end of the string being unpacked.
         See the pack entry in the perlfunc manpage.
         " .nr )I %s"n

     Xsub
         (F) The use of an external subroutine as a sort
         comparison is not yet supported.

     Xsub called in sort
         (F) The use of an external subroutine as a sort
         comparison is not yet supported.

     You can't use -l on a filehandle
         (F) A filehandle represents an opened file, and when you
         opened the file it already went past any symlink you are
         presumably  trying to look for.  Use a filename instead.

     YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!
         (F) And you probably never will, since you probably
         don't have the sources to your kernel, and your vendor
         probably doesn't give a rip about what you want.  Your
         best bet is to use the wrapsuid script in the eg
         directory to put a setuid C wrapper around your  script.
         "" .nr )I %s""n

     You need to quote
         (W) You assigned a bareword as a signal handler name.
         Unfortunately, you already have a subroutine of that
         name declared, which means that Perl 5 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.)

     [gs]etsockopt() 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 the getsockopt entry in the
         perlfunc manpage.

     1 better written as $1
         (W) Outside of patterns, backreferences live on as
         variables.  The use of backslashes is grandfathered on
         the righthand side of a substitution, but stylistically
         it's better to use the variable form because other Perl
         programmers will expect it, and it works better if there
         are more than 9 backreferences.

 



























 

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