What does & mean in c#

In C#, the "&" symbol is a bitwise AND operator, used to compare the corresponding bits of two binary numbers. The result is 1 only when both corresponding bits are 1. Common uses include: extracting place values, checking place values, clearing place values, and merging place values.

& means in C# The

& symbol is called the "bitwise AND" operator in C# , used to compare corresponding bits of two binary numbers.

Bitwise AND operation

For two binary numbers A and B, their bitwise AND operation (A & B) will produce a binary number, where:

• If the corresponding bits of A and B are both 1, the result bit is 1.
• If the corresponding bits of A and B are both 0, the result bit is 0.
• If one of the corresponding bits of A and B is 1 and the other is 0, the result bit is 0.

Example

A = 01101100 (112)
B = 10010111 (151)

A & B = 00000100 (4)

Usage

The bitwise AND operation is common in the following situations:

• Extract bit value: Specific bits of a binary number can be extracted by bitwise ANDing with 1 (00000001).
• Checking bit values: The value of a specific bit in a binary number can be checked by bitwise ANDing it with 1.
• Clear bit values: You can clear the value of a specific bit in a binary number by bitwise ANDing it with NOT 1 (11111110).
• Combining bit values: Specific bits in a binary number can be combined by bitwise ANDing with a mask (a specified bit in a binary number is 1).

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