Note The bitwise operators count the positions of bits from right to left, so bit 0 is the in Visual Studio .NET

Encoder PDF 417 in Visual Studio .NET Note The bitwise operators count the positions of bits from right to left, so bit 0 is the

Note The bitwise operators count the positions of bits from right to left, so bit 0 is the
PDF-417 2d Barcode Generator In .NET Framework
Using Barcode creator for ASP.NET Control to generate, create PDF 417 image in ASP.NET applications.
www.OnBarcode.com
Barcode Encoder In .NET Framework
Using Barcode creator for ASP.NET Control to generate, create bar code image in ASP.NET applications.
www.OnBarcode.com
rightmost bit, and the bit at position 6 is the bit six places from the right.
Encoding PDF-417 2d Barcode In Visual C#.NET
Using Barcode creator for .NET Control to generate, create PDF-417 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
PDF-417 2d Barcode Generation In VS .NET
Using Barcode generation for .NET Control to generate, create PDF417 image in .NET applications.
www.OnBarcode.com
Similarly, if you want to set the bit at position 6 to 1, you can use a bitwise OR (|) operator. The following complicated expression is based on the compound assignment operator |=:
PDF-417 2d Barcode Maker In Visual Basic .NET
Using Barcode creator for VS .NET Control to generate, create PDF-417 2d barcode image in .NET applications.
www.OnBarcode.com
Printing USS Code 39 In VS .NET
Using Barcode maker for ASP.NET Control to generate, create ANSI/AIM Code 39 image in ASP.NET applications.
www.OnBarcode.com
bits |= (1 << 6)
Draw European Article Number 13 In VS .NET
Using Barcode printer for ASP.NET Control to generate, create GTIN - 13 image in ASP.NET applications.
www.OnBarcode.com
GTIN - 128 Generation In VS .NET
Using Barcode generation for ASP.NET Control to generate, create USS-128 image in ASP.NET applications.
www.OnBarcode.com
The trouble with these examples is that although they work, it s not clear why or how they work. They re complicated, and the solution is a very low-level one: it fails to create an abstraction of the problem that it solves.
ECC200 Creator In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create Data Matrix image in ASP.NET applications.
www.OnBarcode.com
QR Code Drawer In Visual Studio .NET
Using Barcode creator for ASP.NET Control to generate, create QR image in ASP.NET applications.
www.OnBarcode.com
The Bitwise and Shift Operators
PDF 417 Creation In .NET
Using Barcode generation for ASP.NET Control to generate, create PDF417 image in ASP.NET applications.
www.OnBarcode.com
Identcode Generator In Visual Studio .NET
Using Barcode creation for ASP.NET Control to generate, create Identcode image in ASP.NET applications.
www.OnBarcode.com
You might have noticed some unfamiliar symbols in the expressions shown in these examples in particular, ~, <<, |, and &. These are some of the bitwise and shift operators, and they are used to manipulate the individual bits held in int and long data types. The NOT (~) operator is a unary operator that performs a bitwise complement. For example, if you take the 8-bit value 11001100 (204 decimal) and apply the ~ operator to it, you obtain the result 00110011 (51 decimal) all the 1s in the original value become 0s, and all the 0s become 1s.
QR Code Encoder In None
Using Barcode generator for Online Control to generate, create QR-Code image in Online applications.
www.OnBarcode.com
Decode PDF-417 2d Barcode In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
16
QR Code 2d Barcode Drawer In Java
Using Barcode creation for Android Control to generate, create QR Code ISO/IEC18004 image in Android applications.
www.OnBarcode.com
Recognize Bar Code In Java
Using Barcode Control SDK for Java Control to generate, create, read, scan barcode image in Java applications.
www.OnBarcode.com
Using Indexers
Generate UCC - 12 In None
Using Barcode drawer for Word Control to generate, create GS1 128 image in Word applications.
www.OnBarcode.com
Paint PDF417 In Java
Using Barcode generation for Eclipse BIRT Control to generate, create PDF 417 image in Eclipse BIRT applications.
www.OnBarcode.com
The left-shift (<<) operator is a binary operator that performs a left shift. The expression 204 << 2 returns the value 48. (In binary, 204 decimal is 11001100, and left-shifting it by two places yields 00110000, or 48 decimal.) The farleft bits are discarded, and zeros are introduced from the right. There is a corresponding right-shift operator >>. The OR (|) operator is a binary operator that performs a bitwise OR operation, returning a value containing a 1 in each position in which either of the operands has a 1. For example, the expression 204 | 24 has the value 220 (204 is 11001100, 24 is 00011000, and 220 is 11011100). The AND (&) operator performs a bitwise AND operation. AND is similar to the bitwise OR operator, except that it returns a value containing a 1 in each position where both of the operands have a 1. So 204 & 20 is 8 (204 is 11001100, 24 is 00011000, and 8 is 00001000). The XOR (^) operator performs a bitwise exclusive OR operation, returning a 1 in each bit where there is a 1 in one operand or the other but not both. (Two 1s yield a 0 this is the exclusive part of the operator.) So 204 ^ 24 is 212 (11001100 ^ 00011000 is 11010100).
PDF 417 Printer In None
Using Barcode generation for Word Control to generate, create PDF417 image in Microsoft Word applications.
www.OnBarcode.com
Generate Bar Code In None
Using Barcode generator for Word Control to generate, create bar code image in Office Word applications.
www.OnBarcode.com
The Same Example Using Indexers
Let s pull back from the preceding low-level solution for a moment and stop to remind ourselves what the problem is. We d like to use an int not as an int but as an array of 32 bits. Therefore, the best way to solve this problem is to use an int as if it were an array of 32 bits! In other words, what we d like to be able to write to access the bit at index 6 of the bits variable is something like this:
bits[6]
And, for example, to set the bit at index 6 to true, we d like to be able to write:
bits[6] = true
Unfortunately, you can t use the square bracket notation on an int it works only on an array or on a type that behaves like an array. So the solution to the problem is to create a new type that acts like, feels like, and is used like an array of bool variables but is implemented by using an int. You can achieve this feat by de ning an indexer. Let s call this new type IntBits. IntBits will contain an int value (initialized in its constructor), but the idea is that we ll use IntBits as an array of bool variables. Tip The IntBits type is small and lightweight, so it makes sense to create it as a structure rather
Copyright © OnBarcode.com . All rights reserved.