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| author |   millert <millert@openbsd.org> | 2000-04-06 17:03:22 +0000 |
|---|---|---|
| committer | millert <millert@openbsd.org> | 2000-04-06 17:03:22 +0000 |
| commit | e2e5c5d36e4398ba94879f0a31b0307421edcfdb (patch) | |
| tree | 15b8472335eac9359a0b196bf3480d422401d8ff /gnu/usr.bin/perl/lib/strict.pm | |
| parent | only call get_random_bytes() once in m_pad() (diff) | |
| download | wireguard-openbsd-e2e5c5d36e4398ba94879f0a31b0307421edcfdb.tar.xz wireguard-openbsd-e2e5c5d36e4398ba94879f0a31b0307421edcfdb.zip | |
perl-5.6.0 + local changes
Diffstat (limited to 'gnu/usr.bin/perl/lib/strict.pm')
| -rw-r--r-- | gnu/usr.bin/perl/lib/strict.pm | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gnu/usr.bin/perl/lib/strict.pm b/gnu/usr.bin/perl/lib/strict.pm index 940e8bf7ff3..042227f967a 100644 --- a/gnu/usr.bin/perl/lib/strict.pm +++ b/gnu/usr.bin/perl/lib/strict.pm @@ -34,12 +34,14 @@ use symbolic references (see L<perlref>). print $$ref; # ok $ref = "foo"; print $$ref; # runtime error; normally ok + $file = "STDOUT"; + print $file "Hi!"; # error; note: no comma after $file =item C<strict vars> This generates a compile-time error if you access a variable that wasn't -declared via C<use vars>, -localized via C<my()> or wasn't fully qualified. Because this is to avoid +declared via "our" or C<use vars>, +localized via C<my()>, or wasn't fully qualified. Because this is to avoid variable suicide problems and subtle dynamic scoping issues, a merely local() variable isn't good enough. See L<perlfunc/my> and L<perlfunc/local>. @@ -50,12 +52,15 @@ L<perlfunc/local>. local $foo = 9; # blows up package Cinna; - use vars qw/ $bar /; # Declares $bar in current package + our $bar; # Declares $bar in current package $bar = 'HgS'; # ok, global declared via pragma The local() generated a compile-time error because you just touched a global name without fully qualifying it. +Because of their special use by sort(), the variables $a and $b are +exempted from this check. + =item C<strict subs> This disables the poetry optimization, generating a compile-time error if |