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32 <h1>not4b</h1>
33 <hr align="left" width="75%">
34 <p>The keyword <b><font face="Courier New">not4b</font></b> belongs to the family of the bitwise operators operating on <font face="Courier New"><b>bitstring</b></font>s, <font face="Courier New"><b>hexstring</b></font>s
35 or <font face="Courier New"><b>octetstring</b></font>s of equal length. It performs the following operation: for each bit in the operand, bit 1 is set to 0 and bit 0 is set to 1. In other words, the
36 unary operator <b><font face="Courier New">not4b</font></b> inverts the individual bit values of its operand.</p>
37 <p>Related keywords:</p>
38 <ul>
39 <li><a href="bitstring.html"><b><font face="Courier New" color="#003258" size="4">bitstring</font></b></a></li>
40 <li><a href="hexstring.html"><b><font face="Courier New" color="#003258" size="4">hexstring</font></b></a></li>
41 <li><a href="octetstring.html"><b><font face="Courier New" color="#003258" size="4">octetstring</font></b></a></li>
42 <li><a href="and4b.html"><b><font face="Courier New" color="#003258" size="4">and4b</font></b></a></li>
43 <li><a href="or4b.html"><b><font face="Courier New" color="#003258" size="4">or4b</font></b></a></li>
44 <li><a href="xor4b.html"><b><font face="Courier New" color="#003258" size="4">xor4b</font></b></a></li>
45 </ul>
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47 <div align="center">
48 <center>
49 <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4">
50 <tr>
51 <td width="100%">
52 <h3 align="center"><font face="Courier New" color="#003258" size="5"><b>not4b</b></font></h3>
53 </td>
54 </tr>
55 </table>
56 </center>
57 </div>
58 <hr align="left" width="50%">
59 <p>Example 1:
60 <p><font face="Courier New">const bitstring c_teplo := '1001'B;</font> <br>
61 <font face="Courier New">&nbsp;&nbsp;var bitstring v_praze := not4b c_teplo;</font>
62 <p>The variable v_praze will initially contain the value '0110'B.</p>
63 <hr align="left" width="50%">
64 <p>Example 2:
65 <p><font face="Courier New">const hexstring c_uttal := '1A5'H ; <br>
66 &nbsp;&nbsp;var hexstring v_omkom := not4b c_uttal;</font>
67 <p>The variable v_omkom will initially contain the value 'E5A'H.</p>
68 <hr align="left" width="50%">
69 <p>Example 3:
70 <p><font face="Courier New">const octstring c_tirer := '01A5'O ; <br>
71 &nbsp;&nbsp;var octstring v_virer := not4b c_tirer;</font>
72 <p>The variable v_virer will initially contain the value 'FE5A'O.</p>
73 <hr align="left" width="25%">
74 <hr align="left" width="25%">
75 <p><a HREF="BNF.html#bitnotexpression">BNF definition</a> of <font face="Courier New">not4b</font></p>
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