What does ~= mean in C language?

The ~ operator in C language is used to perform bit-level operations on integer data, inverting each bit of the operand. Negate a Boolean value: non-zero becomes 0, and 0 becomes 1. Clear bit: Set the specified bit to 0. Create a mask: Mask specific bits in binary data.

What does ~ mean in C language?

In C language, the ~ operator is a bitwise NOT operator, used to perform bit-level operations on integer data. It inverts each bit of the operand, that is, 0 becomes 1 and 1 becomes 0.

Detailed explanation:

~The operator inverts each binary bit of the operand. For example:

<code>操作数       二进制
------------------------------
10            00001010
~10           11110101</code>

Each bit in the result is the opposite bit of the corresponding bit in the original operand.

Usage:

~ Operator can be used in a variety of scenarios, including:

• Negate Boolean values: convert non-zero values Convert to 0, convert 0 to 1.
• Clear bit: Set a specific bit to 0.
• Create mask: used to mask out certain bits in binary data.

Example:

int x = 10;
int y = ~x; // y = 11110101

x &= ~1; // 将x的最低位重置为0，x = 10001010.

Note:

• ~operator only applies to integer data . The
• ~ operator has a higher priority than the bitwise AND (&) and bitwise OR (|) operators, but lower than the arithmetic operators.

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