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.\" ========================================================================
.\"
.IX Title "FFI::C::Struct 3pm"
.TH FFI::C::Struct 3pm "2023-02-06" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
FFI::C::Struct \- Structured data instance for FFI
.SH "VERSION"
.IX Header "VERSION"
version 0.15
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use FFI::C::StructDef;
\& 
\& my $def = FFI::C::StructDef\->new(
\&   name  => \*(Aqcolor_t\*(Aq,
\&   class => \*(AqColor\*(Aq,
\&   members => [
\&     red   => \*(Aquint8\*(Aq,
\&     green => \*(Aquint8\*(Aq,
\&     blue  => \*(Aquint8\*(Aq,
\&   ],
\& );
\& 
\& my $red = $def\->create({ red => 255 });    # creates a FFI::C::Stuct
\& 
\& printf "[%02x %02x %02x]\en", $red\->red, $red\->green, $red\->blue;  # [ff 00 00]
\& 
\& # that red is too bright!
\& $red\->red(200);
\& 
\& printf "[%02x %02x %02x]\en", $red\->red, $red\->green, $red\->blue;  # [c8 00 00]
\& 
\& 
\& my $green = Color\->new({ green => 255 });  # creates a FFI::C::Stuct
\& 
\& printf "[%02x %02x %02x]\en", $green\->red, $green\->green, $green\->blue;  # [00 ff 00]
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This class represents an instance of a C \f(CW\*(C`struct\*(C'\fR.  This class can be created using
\&\f(CW\*(C`new\*(C'\fR on the generated class, if that was specified for the FFI::C::StructDef,
or by using the \f(CW\*(C`create\*(C'\fR method on FFI::C::StructDef.
.PP
For each member defined in the FFI::C::StructDef there is an accessor for the
FFI::C::Struct instance.
.SH "CONSTRUCTOR"
.IX Header "CONSTRUCTOR"
.SS "new"
.IX Subsection "new"
.Vb 2
\& FFI::C::StructDef\->new( class => \*(AqUser::Struct::Class\*(Aq, ... );
\& my $instance = User::Struct::Class\->new;
.Ve
.PP
Creates a new instance of the \f(CW\*(C`struct\*(C'\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.IP "\s-1FFI::C\s0" 4
.IX Item "FFI::C"
.PD 0
.IP "FFI::C::Array" 4
.IX Item "FFI::C::Array"
.IP "FFI::C::ArrayDef" 4
.IX Item "FFI::C::ArrayDef"
.IP "FFI::C::Def" 4
.IX Item "FFI::C::Def"
.IP "FFI::C::File" 4
.IX Item "FFI::C::File"
.IP "FFI::C::PosixFile" 4
.IX Item "FFI::C::PosixFile"
.IP "FFI::C::Struct" 4
.IX Item "FFI::C::Struct"
.IP "FFI::C::StructDef" 4
.IX Item "FFI::C::StructDef"
.IP "FFI::C::Union" 4
.IX Item "FFI::C::Union"
.IP "FFI::C::UnionDef" 4
.IX Item "FFI::C::UnionDef"
.IP "FFI::C::Util" 4
.IX Item "FFI::C::Util"
.IP "FFI::Platypus::Record" 4
.IX Item "FFI::Platypus::Record"
.PD
.SH "AUTHOR"
.IX Header "AUTHOR"
Graham Ollis <plicease@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2020\-2022 by Graham Ollis.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.