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| author | Robin Barker <RMBarker@cpan.org> | 2005-01-04 12:32:29 +0000 |
|---|---|---|
| committer | H.Merijn Brand <h.m.brand@xs4all.nl> | 2005-01-04 12:38:03 +0000 |
| commit | 049cb4115f5677ea81b63ce0025e2bc136637c77 (patch) | |
| tree | 49b951a1ff1d2a5724050b5f78f438c3edd9d014 /pod | |
| parent | 7cebcbc0979cbf6a0b15188e491cb65c675adbe5 (diff) | |
| download | perl-049cb4115f5677ea81b63ce0025e2bc136637c77.tar.gz | |
RE: [perl #32660] INT2PTR not mentioned in perlxs(1)
Message-ID: <533D273D4014D411AB1D00062938C4D90849C553@hotel.npl.co.uk>
p4raw-id: //depot/perl@23742
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perlxs.pod | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/pod/perlxs.pod b/pod/perlxs.pod index c09947d65c..a8196975aa 100644 --- a/pod/perlxs.pod +++ b/pod/perlxs.pod @@ -1833,7 +1833,7 @@ double-colons (::), and declare C<Net_Config> to be of that type: T_PTROBJ_SPECIAL if (sv_derived_from($arg, \"${(my $ntt=$ntype)=~s/_/::/g;\$ntt}\")) { IV tmp = SvIV((SV*)SvRV($arg)); - $var = ($type) tmp; + $var = INT2PTR($type, tmp); } else croak(\"$var is not of type ${(my $ntt=$ntype)=~s/_/::/g;\$ntt}\") @@ -1847,6 +1847,11 @@ The INPUT and OUTPUT sections substitute underscores for double-colons on the fly, giving the desired effect. This example demonstrates some of the power and versatility of the typemap facility. +The INT2PTR macro (defined in perl.h) casts an integer to a pointer, +of a given type, taking care of the possible different size of integers +and pointers. There are also PTR2IV, PTR2UV, PTR2NV macros, +to map the other way, which may be useful in OUTPUT sections. + =head2 Safely Storing Static Data in XS Starting with Perl 5.8, a macro framework has been defined to allow |