What does && mean in C language?

Answer: In C language, && represents the logical AND operator. Detailed description: Operation principle: The result is true when both operands are true, otherwise it is false. Syntax: & & Boolean expression 1 & & Boolean expression 2 Return value: Boolean Priority: higher than ||, lower than assignment operator Note: Handle non-Boolean operands with caution, && has short-circuit evaluation properties.

The meaning of && in C language**

&& represents the logical AND operator in C language.

Operation principle:

• For two Boolean operands, if both are true, the result is true; otherwise, the result is false.
• For non-Boolean operands, they will be converted to Boolean values ​​first, and then operated according to the above rules.

Syntax:

& &  布尔表达式1  & &  布尔表达式2

Return value:

• Boolean value (true or false)

Example:

int x = 10, y = 20;

// 如果 x 和 y 都大于 5，则 result 为真
int result = (x > 5) & & (y > 5);

Priority:

&&'s priority ratio || (or operator) is higher than assignment operator.

Note:

• Please handle non-boolean operands with caution when using the &&** operator. The
• &&** operator can be used to implement short-circuit evaluation. When the first operand is false, the C compiler skips evaluation of the second operand.

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