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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head profile="http://gmpg.org/xfn/11" >
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>CStruct:Examples:Anonymous struct</title>
<style type="text/css">
.CodeRay {
background-color: #232323;
border: 1px solid black;
font-family: 'Courier New', 'Terminal', monospace;
color: #E6E0DB;
padding: 3px 5px;
overflow: auto;
font-size: 12px;
margin: 12px 0;
}
.CodeRay pre {
margin: 0px;
padding: 0px;
}
.CodeRay .an { color:#E7BE69 }
.CodeRay .c { color:#BC9358; font-style: italic; }
.CodeRay .ch { color:#509E4F }
.CodeRay .cl { color:#FFF }
.CodeRay .co { color:#FFF }
.CodeRay .fl { color:#A4C260 }
.CodeRay .fu { color:#FFC56D }
.CodeRay .gv { color:#D0CFFE }
.CodeRay .i { color:#A4C260 }
.CodeRay .il { background:#151515 }
.CodeRay .iv { color:#D0CFFE }
.CodeRay .pp { color:#E7BE69 }
.CodeRay .r { color:#CB7832 }
.CodeRay .rx { color:#A4C260 }
.CodeRay .s { color:#A4C260 }
.CodeRay .sy { color:#6C9CBD }
.CodeRay .ta { color:#E7BE69 }
.CodeRay .pc { color:#6C9CBD }
</style>
</head>
<body>
<div style="margin-left:auto;margin-right:auto;width:800px;">
<div class="CodeRay">
<div class="code"><pre><span class="c"># CStruct Examples</span>
require <span class="s"><span class="dl">'</span><span class="k">cstruct</span><span class="dl">'</span></span>
<span class="c"># example:</span>
<span class="c"># struct Window in C\C++ (32-bit platform): </span>
<span class="c"># </span>
<span class="c"># struct Window</span>
<span class="c"># {</span>
<span class="c"># int style;</span>
<span class="c"># struct{</span>
<span class="c"># int x;</span>
<span class="c"># int y;</span>
<span class="c"># }position; /* position is anonymous struct's instance */</span>
<span class="c"># }; </span>
<span class="c"># struct Window in Ruby: </span>
<span class="r">class</span> <span class="cl">Window</span> < <span class="co">CStruct</span>
int32<span class="sy">:style</span>
struct <span class="sy">:position</span> <span class="r">do</span>
int32<span class="sy">:x</span>
int32<span class="sy">:y</span>
<span class="r">end</span>
<span class="r">end</span>
<span class="c"># or like this (use brace):</span>
<span class="c"># class Window < CStruct</span>
<span class="c"># int32:style</span>
<span class="c"># struct (:position) {</span>
<span class="c"># int32:x</span>
<span class="c"># int32:y </span>
<span class="c"># }</span>
<span class="c"># end</span>
<span class="c"># create a Window's instance</span>
window = <span class="co">Window</span>.new
<span class="c"># assign like as C language</span>
window.style = <span class="i">1</span>
window.position.x = <span class="i">10</span>
window.position.y = <span class="i">10</span>
puts <span class="s"><span class="dl">"</span><span class="k">sizeof(Window) = </span><span class="il"><span class="idl">#{</span><span class="co">Window</span>.__size__<span class="idl">}</span></span><span class="dl">"</span></span> <span class="c"># "__size__" is alias of "size"</span>
puts <span class="s"><span class="dl">"</span><span class="k">window.style = </span><span class="il"><span class="idl">#{</span>window.style<span class="idl">}</span></span><span class="k">,window.position.x = </span><span class="il"><span class="idl">#{</span>window.position.x<span class="idl">}</span></span><span class="k">,window.position.y = </span><span class="il"><span class="idl">#{</span>window.position.y<span class="idl">}</span></span><span class="dl">"</span></span>
</pre></div>
</div>
</div>
</body>
|
