What does & mean in c language

In C language, the & operator is called the bitwise AND operator, which is used to compare the binary bits of two integers to generate a new integer c, whose corresponding bits are: If the corresponding bits of a and b If both are 1, the corresponding bit of c is 1; otherwise, it is 0. Uses include: checking bit status, clearing specific bits, setting specific bits, and extracting values ​​from bit sets.

In C language, the meaning of &

In C language, & operator is called the bitwise AND operator. It performs the following bitwise operations:

Operation:

For given two integers a and b, the bitwise AND operator (&) converts them bitwise Compare and generate a new integer c.

Result:

If the corresponding bits of a and b are both 1, then the corresponding bit of c is 1. Otherwise, the corresponding bit of c is 0.

For example:

Suppose a = 10 (binary representation is 1010) and b = 6 (binary representation is 0110).

• a & b = 0010 (binary)

• Explanation:

  • 1 & 0 = 0
  • 0 & 1 = 0
  • 1 & 1 = 1
  • 0 & 0 = 0

Therefore, the bitwise AND operator computes c = 2 (0010 in binary).

Uses:

The bitwise AND operator is used in C for various purposes, including:

• Checking bit status
• Clear specific bits
• Set specific bits
• Extract the value from the bit set

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