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| author | Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> | 2021-12-03 13:35:53 +0000 |
|---|---|---|
| committer | Paul Evans <leonerd@leonerd.org.uk> | 2021-12-04 11:39:22 +0000 |
| commit | 6ac93b496cce8882a9d5494bfedb84f4da7e0aee (patch) | |
| tree | 39715c51bfcaf9a851f141a929fb07ae4fc39773 /pod | |
| parent | 6ae4a6b7932dd745639ff335e83dbc87c63031a1 (diff) | |
| download | perl-6ac93b496cce8882a9d5494bfedb84f4da7e0aee.tar.gz | |
Add builtin:: funcs for handling weakrefs
Also, ensure that B::Deparse understands the OA_TARGMY optimisation of
OP_ISBOOL
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perlref.pod | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/pod/perlref.pod b/pod/perlref.pod index 5cd9ee21f8..f14d85bb3f 100644 --- a/pod/perlref.pod +++ b/pod/perlref.pod @@ -493,7 +493,8 @@ You can break circular references by creating a "weak reference". A weak reference does not increment the reference count for a variable, which means that the object can go out of scope and be destroyed. You can weaken a reference with the C<weaken> function exported by the -L<Scalar::Util> module. +L<Scalar::Util> module, or available as C<builtin::weaken> directly in +Perl version 5.35.7 or later. Here's how we can make the first example safer: |