From @nwc10

mg.c
1935​: sv_pos_b2u(lsv, &i);
1995​: sv_pos_u2b(lsv, &p, 0);

pp.c
369​: sv_pos_b2u(sv, &i);

Perl_magic_getpos(), Perl_magic_setpos() and pp_pos respectively. This means
that reading and writing pos() will fail on UTF-8 strings over 2GB.

As PERL_MAGIC_regex_global is using mg_len, which is I32, likely the same
approach as Perl_av_iter_p() is needed - allocate mg_ptr on 64 bit systems.

Nicholas Clark

From @cpansprout

On Sat Feb 13 07​:43​:11 2010, nicholas wrote​:

mg.c
1935​: sv_pos_b2u(lsv, &i);
1995​: sv_pos_u2b(lsv, &p, 0);

pp.c
369​: sv_pos_b2u(sv, &i);

Perl_magic_getpos(), Perl_magic_setpos() and pp_pos respectively. This
means
that reading and writing pos() will fail on UTF-8 strings over 2GB.

I fixed this in commit 6174b39, but it is only part of the larger
puzzle, represented by #116907 and others.

--

Father Chrysostomos

The RT System itself - Status changed from 'new' to 'open'

@cpansprout - Status changed from 'open' to 'resolved'