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Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perltodo.pod | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/pod/perltodo.pod b/pod/perltodo.pod index 026f2f6bb7..8626f2a9b5 100644 --- a/pod/perltodo.pod +++ b/pod/perltodo.pod @@ -501,6 +501,21 @@ adding the C<SvMAGICAL> check to Go through the core and look for similar assumptions that SVs have particular types, as all bets are off during global destruction. +=head2 Extend PerlIO and PerlIO::Scalar + +PerlIO::Scalar doesn't know how to truncate(). Implementing this +would require extending the PerlIO vtable. + +Similarly the PerlIO vtable doesn't know about formats (write()), or +about stat(), or chmod()/chown(), utime(), or flock(). + +(For PerlIO::Scalar it's hard to see what e.g. mode bits or ownership +would mean.) + +PerlIO doesn't do directories or symlinks, either: mkdir(), rmdir(), +opendir(), closedir(), seekdir(), rewinddir(), glob(); symlink(), +readlink(). + =head1 Tasks that need a knowledge of the interpreter These tasks would need C knowledge, and knowledge of how the interpreter works, |