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| author | Larry Wall <lwall@scalpel.netlabs.com> | 1995-11-21 10:01:00 +1200 |
|---|---|---|
| committer | Larry <lwall@scalpel.netlabs.com> | 1995-11-21 10:01:00 +1200 |
| commit | 4633a7c4bad06b471d9310620b7fe8ddd158cccd (patch) | |
| tree | 37ebeb26a64f123784fd8fac6243b124767243b0 /pod/perldiag.pod | |
| parent | 8e07c86ebc651fe92eb7e3b25f801f57cfb8dd6f (diff) | |
| download | perl-4633a7c4bad06b471d9310620b7fe8ddd158cccd.tar.gz | |
5.002 beta 1
If you're adventurous, have a look at
ftp://ftp.sems.com/pub/outgoing/perl5.0/perl5.002beta1.tar.gz
Many thanks to Andy for doing the integration.
Obviously, if you consult the bugs database, you'll note there are
still plenty of buglets that need fixing, and several enhancements that
I've intended to put in still haven't made it in (Hi, Tim and Ilya).
But I think it'll be pretty stable. And you can start to fiddle around
with prototypes (which are, of course, still totally undocumented).
Packrats, don't worry too much about readvertising this widely.
Nowadays we're on a T1 here, so our bandwidth is okay.
Have the appropriate amount of jollity.
Larry
Diffstat (limited to 'pod/perldiag.pod')
| -rw-r--r-- | pod/perldiag.pod | 58 |
1 files changed, 50 insertions, 8 deletions
diff --git a/pod/perldiag.pod b/pod/perldiag.pod index e41c29939a..ad4a532aaf 100644 --- a/pod/perldiag.pod +++ b/pod/perldiag.pod @@ -194,13 +194,6 @@ 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. -=item Attempt to use reference as hash key - -(W) References as not very meaningful as hash keys. You probably forgot to -dereference the reference before using it in a hash list, or got mixed up -and used C<{}> or C<[]> instead of C<()>. Or perhaps a missing key in the -hash list is causing values to be treated as keys. - =item 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 @@ -262,6 +255,10 @@ Compilation stops immediately and the interpreter is exited. (W) You tried to do a bind on a closed socket. Did you forget to check the return value of your socket() call? See L<perlfunc/bind>. +=item Bizarre copy of %s in %s + +(P) Perl detected an attempt to copy an internal value that is not copiable. + =item Callback called exit (F) A subroutine invoked from an external package via perl_call_sv() @@ -490,6 +487,13 @@ 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 L<perlfunc/goto>. +=item Can't localize a reference + +(F) You said something like C<local $$ref>, which is not allowed because +the compiler can't determine whether $ref will end up pointing to anything +with a symbol table entry, and a symbol table entry is necessary to +do a local. + =item Can't localize lexical variable %s (F) You used local on a variable name that was previous declared as a @@ -740,6 +744,10 @@ 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. +=item Did you mean &%s instead? + +(W) You probably referred to an imported subroutine &FOO as $FOO or some such. + =item Did you mean $ or @ instead of %? (W) You probably said %hash{$key} when you meant $hash{$key} or @hash{@keys}. @@ -770,6 +778,13 @@ declaration. (S) An internal routine called free() on something that had already been freed. +=item elseif should be elsif + +(S) There is no keyword "elseif" in Perl because Larry thinks it's +ugly. Your code will be interpreted as an attempt to call a method +named "elseif" for the class returned by the following block. This is +unlikely to be what you want. + =item END failed--cleanup aborted (F) An untrapped exception was raised while executing an END subroutine. @@ -1570,6 +1585,11 @@ last argument of the previous construct, for example: open FOO || die; +=item Prototype mismatch: (%s) vs (%s) + +(S) The subroutine being defined had a predeclared (forward) declaration +with a different function prototype. + =item Read on closed filehandle <%s> (W) The filehandle you're reading from got itself closed sometime before now. @@ -1742,7 +1762,7 @@ But before sort was a keyword, people sometimes used it as a filehandle. =item 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<E<lt>=E<gt> or C<cmp>, or by not using them correctly. +it by not using C<E<lt>=E<gt>> or C<cmp>, or by not using them correctly. See L<perlfunc/sort>. =item Sort subroutine didn't return single value @@ -1931,6 +1951,10 @@ certain type. Arrays must be @NAME or @{EXPR}. Hashes must be (W) A umask of 222 is incorrect. It should be 0222, since octal literals always start with 0 in Perl, as in C. +=item Unable to create sub named "%s" + +(F) You attempted to create or access a subroutine with an illegal name. + =item Unbalanced context: %d more PUSHes than POPs (W) The exit code detected an internal inconsistency in how many execution @@ -1976,6 +2000,11 @@ or if it was, it has since been undefined. (F) The sort comparison routine specified is declared but doesn't seem to have been defined yet. See L<perlfunc/sort>. +=item Undefined top format "%s" called + +(F) The format indicated doesn't seem to exist. Perhaps it's really in +another package? See L<perlform>. + =item unexec of %s into %s failed! (F) The unexec() routine failed for some reason. See your local FSF @@ -2076,6 +2105,11 @@ from C. This usually means there's a better way to do it in Perl. because there's a better way to do it, and also because the old way has bad side effects. +=item Use of bare << to mean <<"" is deprecated + +(D) You are now encouraged to use the explicitly quoted form if you +wish to use a blank line as the terminator of the here-document. + =item Use of implicit split to @_ is deprecated (D) It makes a lot of work for the compiler when you clobber a @@ -2119,6 +2153,14 @@ a scalar context, the comma is treated like C's comma operator, which throws away the left argument, which is not what you want. See L<perlref> for more on this. +=item Variable "%s" is not exported + +(F) While "use strict" in effect, you referred to a global variable +that you apparently thought was imported from another module, because +something else of the same name (usually a subroutine) is exported +by that module. It usually means you put the wrong funny character +on the front of your variable. + =item Warning: unable to close filehandle %s properly. (S) The implicit close() done by an open() got an error indication on the |