In perl.git, the branch blead has been updated <http://perl5.git.perl.org/perl.git/commitdiff/cca58a489cebfe3c30870ceba288d2b88ff35a06?hp=bcb52d7e92bab55054013e0b3077bf92044c4659>
- Log ----------------------------------------------------------------- commit cca58a489cebfe3c30870ceba288d2b88ff35a06 Author: David Mitchell <[email protected]> Date: Sun May 17 20:48:39 2015 +0100 perdelta tweaks based on bulk88 feedback. See http://nntp.perl.org/group/perl.perl5.porters/228010 ----------------------------------------------------------------------- Summary of changes: pod/perldelta.pod | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/pod/perldelta.pod b/pod/perldelta.pod index a1c332d..8a7baee 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -2082,17 +2082,19 @@ L<[perl #123103]|https://rt.perl.org/Ticket/Display.html?id=123103>. Accessing L<perlapi/CvPADLIST> on an XSUB is now forbidden. -C<CvPADLIST> has been reused for a different internal purpose for XSUBs. -Padlist-inspecting code that isn't otherwise prevented from seeing an XSUB -C<CV*> should guard all C<CvPADLIST> expressions with C<CvISXSUB()>. +The C<CvPADLIST> field has been reused for a different internal purpose +for XSUBs. So in particular, you can no longer rely on it being NULL as a +test of whether a CV is an XSUB. Use C<CvISXSUB()> instead. + =item * -SVs of type C<SVt_NV> are now bodyless when the build configuration and -platform allow it; specifically, bodyless NVs require C<< sizeof(NV) <= -sizeof(IV) >>. The bodyless trick is the same one as used for IVs since -5.9.2 (though in the case of IVs, it is used of platform and build -configuration). +SVs of type C<SVt_NV> are now sometimes bodyless when the build +configuration and platform allow it: specifically, when C<< sizeof(NV) <= +sizeof(IV) >>. "Bodyless" means that the NV value is stored directly in +the head of an SV, without requiring a separate body to be allocated. This +trick has already been used for IVs since 5.9.2 (though in the case of +IVs, it is always used, regardless of platform and build configuration). =item * @@ -2227,7 +2229,8 @@ C<Perl_cast_ulong>, C<Perl_cast_i32>, C<Perl_cast_iv>, C<Perl_cast_uv>, C<Perl_cv_const_sv>, C<Perl_mg_find>, C<Perl_mg_findext>, C<Perl_mg_magical>, C<Perl_mini_mktime>, C<Perl_my_dirfd>, C<Perl_sv_backoff>, C<Perl_utf8_hop>. -Uses of the prefix-less calls that form the public API remain unaffected. +Note that the prefix-less versions of those functions that are part of the +public API, such as C<cast_i32()>, remain unaffected. =item * @@ -3060,8 +3063,8 @@ L<[cpan #85570]|https://rt.cpan.org/Ticket/Display.html?id=85570>. =item * During the pattern optimization phase, we no longer recurse into -C<GOSUB>/C<GOSTART> when C<SCF_DO_SUBSTR> is false. This prevents the -optimizer from running "forever" and exhausting all memory. +C<GOSUB>/C<GOSTART> when the C<SCF_DO_SUBSTR> flag is false. This prevents +the optimizer from running "forever" and exhausting all memory. L<[perl #122283]|https://rt.perl.org/Ticket/Display.html?id=122283>. =item * @@ -3083,7 +3086,7 @@ L<[perl #122995]|https://rt.perl.org/Ticket/Display.html?id=122995>. =item * -On Win32, if a variable was C<local>-ized in a pseudo-process that then +On Win32, if a variable was C<local>-ized in a pseudo-process that later forked, restoring the original value in the child pseudo-process caused memory corruption and a crash in the child pseudo-process (and therefore the OS process). -- Perl5 Master Repository
