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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<TITLE>BIN2INT Convert Binary Arrays to Integer
</TITLE>
</HEAD>
<BODY>
<H2>BIN2INT Convert Binary Arrays to Integer
</H2>
<P>
Section: <A HREF=sec_typecast.html> Type Conversion Functions </A>
<H3>Usage</H3>
Converts the binary decomposition of an integer array back
to an integer array. The general syntax for its use is
<PRE>
y = bin2int(x)
</PRE>
<P>
where <code>x</code> is a multi-dimensional logical array, where the last
dimension indexes the bit planes (see <code>int2bin</code> for an example).
By default, the output of <code>bin2int</code> is unsigned <code>uint32</code>. To
get a signed integer, it must be typecast correctly. A second form for
<code>bin2int</code> takes a <code>'signed'</code> flag
<PRE>
y = bin2int(x,'signed')
</PRE>
<P>
in which case the output is signed.
<H3>Example</H3>
The following piece of code demonstrates various uses of the int2bin
function. First the simplest example:
<PRE>
--> A = [2;5;6;2]
A =
2
5
6
2
--> B = int2bin(A,8)
B =
0 0 0 0 0 0 1 0
0 0 0 0 0 1 0 1
0 0 0 0 0 1 1 0
0 0 0 0 0 0 1 0
--> bin2int(B)
ans =
2
5
6
2
--> A = [1;2;-5;2]
A =
1
2
-5
2
--> B = int2bin(A,8)
B =
0 0 0 0 0 0 0 1
0 0 0 0 0 0 1 0
1 1 1 1 1 0 1 1
0 0 0 0 0 0 1 0
--> bin2int(B)
ans =
1
2
251
2
--> int32(bin2int(B))
ans =
1
2
251
2
</PRE>
<P>
<H3>Tets</H3>
</BODY>
</HTML>
|
