The difference between | and || in c language

The difference between "|" and "||" in C language lies in the operation type: "|" performs bitwise OR operation, which is true only if both values ​​are true; "||" performs logical OR Operation that is true as long as one or both values ​​are true.

The difference between "|" and "||" in C language

In C language, "|" and "||" are logical operators, which are used to operate on the Boolean value of Boolean expressions.

"|": Bitwise OR operation

The "|" operator performs a bitwise OR operation on two Boolean values:

• If both values ​​are true, the result is true.
• If one or both values ​​are false, the result is false.

"||": Logical OR operation

The "||" operator performs a logical OR operation and also operates on two Boolean values:

• The result is true if either or both values ​​are true.
• The result is false only if both values ​​are false.

Summary of differences

Operator	Operation type	Result condition
	Bitwise or	Both values ​​are true
			Logical OR	Either or both values ​​are true

Example

<code class="c">int a = 1; // 0001
int b = 2; // 0010

int result1 = a | b; // 0011 (按位或)
int result2 = a || b; // 1 (逻辑或)</code>

In the first example, the "|" operator performs a bitwise OR operation and the result is "0011". In the second example, the "||" operator performs a logical OR operation and the result is "1" because both values ​​are true.

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