How to express and in C language

The "and" operator (&&) in C language is used to test the authenticity of two Boolean expressions. If both expressions are true, the result is true; otherwise, it is false. This operator has higher precedence than the "or" operator, treats nonzero values ​​as true, and supports short-circuit evaluation.

The "and" operator in C language

In C language, the "and" operator uses double Represented by ampersand symbol (&&). It is a logical operator used to test the truthfulness of two Boolean expressions.

Operation mode

The "and" operator works as follows:

• If both expressions are true, the result is true.
• If any expression is false, the result is false.

Example

The following is an example of the "and" operator:

<code class="c">int age = 18;
bool isAdult = (age >= 18) && (age < 65);</code>

In this example, the "isAdult" variable will Set based on the value of the "age" variable. If "age" is greater than or equal to 18 years old and less than 65 years old, "isAdult" will be set to true; otherwise, it will be set to false.

Other Notes

• The "and" operator has higher precedence than the "or" operator.
• Any non-zero value is considered true in C language.
• The "and" operator can be used for short-circuit evaluation. This means that if the first expression is false, the second expression will not be evaluated. This can improve the efficiency of your code.

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