This file is indexed.

/usr/share/doc/libffi5/html/Structures.html is in libffi-dev 3.0.10-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
<html lang="en">
<head>
<title>Structures - libffi</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="libffi">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Types.html#Types" title="Types">
<link rel="prev" href="Primitive-Types.html#Primitive-Types" title="Primitive Types">
<link rel="next" href="Type-Example.html#Type-Example" title="Type Example">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
This manual is for Libffi, a portable foreign-function interface
library.

Copyright (C) 2008, 2010 Red Hat, Inc.

     Permission is granted to copy, distribute and/or modify this
     document under the terms of the GNU General Public License as
     published by the Free Software Foundation; either version 2, or
     (at your option) any later version.  A copy of the license is
     included in the section entitled ``GNU General Public License''.

   -->
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
  pre.display { font-family:inherit }
  pre.format  { font-family:inherit }
  pre.smalldisplay { font-family:inherit; font-size:smaller }
  pre.smallformat  { font-family:inherit; font-size:smaller }
  pre.smallexample { font-size:smaller }
  pre.smalllisp    { font-size:smaller }
  span.sc    { font-variant:small-caps }
  span.roman { font-family:serif; font-weight:normal; } 
  span.sansserif { font-family:sans-serif; font-weight:normal; } 
--></style>
</head>
<body>
<div class="node">
<a name="Structures"></a>
<p>
Next:&nbsp;<a rel="next" accesskey="n" href="Type-Example.html#Type-Example">Type Example</a>,
Previous:&nbsp;<a rel="previous" accesskey="p" href="Primitive-Types.html#Primitive-Types">Primitive Types</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Types.html#Types">Types</a>
<hr>
</div>

<h4 class="subsection">2.3.2 Structures</h4>

<p>Although &lsquo;<samp><span class="samp">libffi</span></samp>&rsquo; has no special support for unions or
bit-fields, it is perfectly happy passing structures back and forth. 
You must first describe the structure to &lsquo;<samp><span class="samp">libffi</span></samp>&rsquo; by creating a
new <code>ffi_type</code> object for it.

   <p><a name="index-ffi_005ftype-34"></a>

<div class="defun">
&mdash; ffi_type: <var><a name="index--35"></a></var><br>
<blockquote><p>The <code>ffi_type</code> has the following members:
          <dl>
<dt><code>size_t size</code><dd>This is set by <code>libffi</code>; you should initialize it to zero.

          <br><dt><code>unsigned short alignment</code><dd>This is set by <code>libffi</code>; you should initialize it to zero.

          <br><dt><code>unsigned short type</code><dd>For a structure, this should be set to <code>FFI_TYPE_STRUCT</code>.

          <br><dt><code>ffi_type **elements</code><dd>This is a &lsquo;<samp><span class="samp">NULL</span></samp>&rsquo;-terminated array of pointers to <code>ffi_type</code>
objects.  There is one element per field of the struct. 
</dl>
        </p></blockquote></div>

   </body></html>