The meaning of && in c++

The && operator in C is a logical AND operator, which performs a "logical AND" operation on two Boolean expressions and returns true if and only if both expressions are true.

The && operator in C

What is && Operator?

The && operator in C is a logical operator called "logical AND". The meaning of

&&

&& operator performs a "logical AND" operation on two Boolean expressions , returns a Boolean value. This operator evaluates the result according to the following rules:

• Returns true if both expressions are true.
• If any expression is false, return false.

Use the &&**

&& operator is usually used to check whether multiple conditions True at the same time, for example: The difference between

if (num > 0 && num < 10) {
  // num 同时大于 0 小于 10
}

and || operators

&& operators and || (logical OR) operations Symbols are opposite. The || operator returns true if any expression is true, while the && operator returns true only if all expressions are true.

Usage Scenarios

&& The operator is particularly useful in the following scenarios:

• Verify multiple conditions
• Ensure code execution under specific circumstances
• Simplify conditional expressions

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