FFI::Platypus::Type::StringPointer - Convert a pointer to a string and back

       Author: Graham Ollis <plicease@cpan.org>

       Contributors:

       Bakkiaraj Murugesan (bakkiaraj)

       Dylan Cali (calid)

       pipcet

       Zaki Mughal (zmughal)

       Fitz Elliott (felliott)

       Vickenty Fesunov (vyf)

       Gregor Herrmann (gregoa)

       Shlomi Fish (shlomif)

       Damyan Ivanov

       Ilya Pavlov (Ilya33)

       Petr Písař (ppisar)

       Mohammad S Anwar (MANWAR)

       Håkon Hægland (hakonhagland, HAKONH)

       Meredith (merrilymeredith, MHOWARD)

       Diab Jerius (DJERIUS)

       Eric Brine (IKEGAMI)

       szTheory

       José Joaquín Atria (JJATRIA)

       Pete Houston (openstrike, HOUSTON)

       Lukas Mai (MAUKE)

       This software is copyright (c) 2015-2022 by Graham Ollis.

       This  is  free  software;  you  can  redistribute  it and/or modify it under the same terms as the Perl 5
       programming language system itself.

perl v5.40.0                                       2025-01-11             FFI::Platypus::...::StringPointer(3pm)

NOTE: As of version 0.61, this custom type is now deprecated since pointers to strings are supported in
       the FFI::Platypus directly without custom types.

       This module provides a FFI::Platypus custom type for pointers to strings.

       FFI::Platypus::Type::StringPointer - Convert a pointer to a string and back

       FFI::Platypus
           Main Platypus documentation.

       FFI::Platypus::Type
           Platypus types documentation.

       In your C code:

        void
        string_pointer_argument(const char **string)
        {
          ...
        }
        const char **
        string_pointer_return(void)
        {
          ...
        }

       In your Platypus::FFI code:

        use FFI::Platypus 2.00;

        my $ffi = FFI::Platypus->new( api => 2 );
        $ffi->load_custom_type('::StringPointer' => 'string_pointer');

        $ffi->attach(string_pointer_argument => ['string_pointer'] => 'void');
        $ffi->attach(string_pointer_return   => [] => 'string_pointer');

        my $string = "foo";

        string_pointer_argument(\$string); # $string may be modified

        $ref = string_pointer_return();

        print $$ref;  # print the string pointed to by $ref

       version 2.10