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author | Perl 5 Porters <perl5-porters@africa.nicoh.com> | 1996-11-19 14:16:00 +1200 |
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committer | Chip Salzenberg <chip@atlantic.net> | 1996-11-19 14:16:00 +1200 |
commit | 55497cffdd24c959994f9a8ddd56db8ce85e1c5b (patch) | |
tree | 444dfb8adc0e5b96d56e0532791122c366f50a3e /lib/strict.pm | |
parent | c822f08a5087943f7d9e2c36ce42ea035f03ab97 (diff) | |
download | perl-55497cffdd24c959994f9a8ddd56db8ce85e1c5b.tar.gz |
[inseparable changes from patch from perl5.003_07 to perl5.003_08]
CORE LANGUAGE CHANGES
Subject: Bitwise op sign rationalization
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c opcode.pl pod/perlop.pod pod/perltoc.pod pp.c pp.h pp_hot.c proto.h sv.c t/op/bop.t
Make bitwise ops result in unsigned values, unless C<use
integer> is in effect. Includes initial support for UVs.
Subject: Defined scoping for C<my> in control structures
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c perly.c perly.c.diff perly.h perly.y proto.h toke.c
Finally defines semantics of "my" in control expressions,
like the condition of "if" and "while". In all cases, scope
of a "my" var extends to the end of the entire control
structure. Also adds new construct "for my", which
automatically declares the control variable "my" and limits
its scope to the loop.
Subject: Fix ++/-- after int conversion (e.g. 'printf "%d"')
From: Chip Salzenberg <chip@atlantic.net>
Files: pp.c pp_hot.c sv.c
This patch makes Perl correctly ignore SvIVX() if either
NOK or POK is true, since SvIVX() may be a truncated or
overflowed version of the real value.
Subject: Make code match Camel II re: functions that use $_
From: Paul Marquess <pmarquess@bfsec.bt.co.uk>
Files: opcode.pl
Subject: Provide scalar context on left side of "->"
From: Chip Salzenberg <chip@atlantic.net>
Files: perly.c perly.y
Subject: Quote bearword package/handle FOO in "funcname FOO => 'bar'"
From: Chip Salzenberg <chip@atlantic.net>
Files: toke.c
OTHER CORE CHANGES
Subject: Warn on overflow of octal and hex integers
From: Chip Salzenberg <chip@atlantic.net>
Files: proto.h toke.c util.c
Subject: If -w active, warn for commas and hashes ('#') in qw()
From: Chip Salzenberg <chip@atlantic.net>
Files: toke.c
Subject: Fixes for pack('w')
From: Ulrich Pfeifer <pfeifer@charly.informatik.uni-dortmund.de>
Files: pp.c t/op/pack.t
Subject: More complete output from sv_dump()
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: sv.c
Subject: Major '..' and debugger patches
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: lib/perl5db.pl op.c pp_ctl.c scope.c scope.h
Subject: Fix for formline()
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: global.sym mg.c perl.h pod/perldiag.pod pp_ctl.c proto.h sv.c t/op/write.t
Subject: Fix stack botch in untie and binmode
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: pp_sys.c
Subject: Complete EMBED, including symbols from interp.sym
From: Chip Salzenberg <chip@atlantic.net>
Files: MANIFEST embed.pl ext/DynaLoader/dlutils.c ext/SDBM_File/sdbm/sdbm.h global.sym handy.h malloc.c perl.h pp_sys.c proto.h regexec.c toke.c util.c x2p/Makefile.SH x2p/a2p.h x2p/handy.h x2p/util.h
New define EMBEDMYMALLOC makes embedding total by
avoiding "Mymalloc" etc.
Subject: Support old embedding for people who want it
From: Chip Salzenberg <chip@atlantic.net>
Files: MANIFEST Makefile.SH old_embed.pl old_global.sym
PORTABILITY
Subject: Miscellaneous VMS fixes
From: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Files: lib/ExtUtils/Liblist.pm lib/ExtUtils/MM_VMS.pm lib/Math/Complex.pm lib/Time/Local.pm lib/timelocal.pl perl.h perl_exp.SH proto.h t/TEST t/io/read.t t/lib/findbin.t t/lib/getopt.t util.c utils/h2xs.PL vms/Makefile vms/config.vms vms/descrip.mms vms/ext/Stdio/Stdio.pm vms/ext/Stdio/Stdio.xs vms/perlvms.pod vms/test.com vms/vms.c
Subject: DJGPP patches (MS-DOS)
From: "Douglas E. Wegscheid" <wegscd@whirlpool.com>
Files: doio.c dosish.h ext/SDBM_File/sdbm/sdbm.c handy.h lib/AutoSplit.pm lib/Cwd.pm lib/File/Find.pm malloc.c perl.c perl.h pp_sys.c proto.h sv.c util.c
Subject: Patch to make Perl work under AmigaOS
From: "Norbert Pueschel" <pueschel@imsdd.meb.uni-bonn.de>
Files: MANIFEST hints/amigaos.sh installman lib/File/Basename.pm lib/File/Find.pm pod/pod2man.PL pp_sys.c util.c
Diffstat (limited to 'lib/strict.pm')
-rw-r--r-- | lib/strict.pm | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/lib/strict.pm b/lib/strict.pm index 4aa55eb4f3..e261e92f67 100644 --- a/lib/strict.pm +++ b/lib/strict.pm @@ -11,7 +11,6 @@ strict - Perl pragma to restrict unsafe constructs use strict "vars"; use strict "refs"; use strict "subs"; - use strict "untie"; use strict; no strict "vars"; @@ -20,8 +19,8 @@ strict - Perl pragma to restrict unsafe constructs If no import list is supplied, all possible restrictions are assumed. (This is the safest mode to operate in, but is sometimes too strict for -casual programming.) Currently, there are four possible things to be -strict about: "subs", "vars", "refs", and "untie". +casual programming.) Currently, there are three possible things to be +strict about: "subs", "vars", and "refs". =over 6 @@ -66,24 +65,6 @@ appears in curly braces or on the left hand side of the "=E<gt>" symbol. -=item C<strict untie> - -This generates a runtime error if any references to the object returned -by C<tie> (or C<tied>) still exist when C<untie> is called. Note that -to get this strict behaviour, the C<use strict 'untie'> statement must -be in the same scope as the C<untie>. See L<perlfunc/tie>, -L<perlfunc/untie>, L<perlfunc/tied> and L<perltie>. - - use strict 'untie'; - $a = tie %a, 'SOME_PKG'; - $b = tie %b, 'SOME_PKG'; - $b = 0; - tie %c, PKG; - $c = tied %c; - untie %a ; # blows up, $a is a valid object reference. - untie %b; # ok, $b is not a reference to the object. - untie %c ; # blows up, $c is a valid object reference. - =back See L<perlmod/Pragmatic Modules>. @@ -97,19 +78,18 @@ sub bits { $bits |= 0x00000002 if $sememe eq 'refs'; $bits |= 0x00000200 if $sememe eq 'subs'; $bits |= 0x00000400 if $sememe eq 'vars'; - $bits |= 0x00000800 if $sememe eq 'untie'; } $bits; } sub import { shift; - $^H |= bits(@_ ? @_ : qw(refs subs vars untie)); + $^H |= bits(@_ ? @_ : qw(refs subs vars)); } sub unimport { shift; - $^H &= ~ bits(@_ ? @_ : qw(refs subs vars untie)); + $^H &= ~ bits(@_ ? @_ : qw(refs subs vars)); } 1; |