How to use bool in c language

The bool type is a basic data type used to store Boolean values ​​(true or false). It is similar to the int type, but can only store two specific values: true (true) or false (false) , representing 1 and 0 respectively. It supports comparison operators and logical operators for controlling flow statements, storing logical states, and creating Boolean expressions.

The bool type in C language

Q: What is the bool type?

Answer: The bool type is a basic data type, which is used to store Boolean values ​​(true or false).

Expand:

The bool type is similar to the int type, but it can only store two specific values: true (true) or false (false). These values ​​represent 1 and 0 respectively.

Declare bool variable:

<code class="c">bool isTrue;</code>

Assignment:

<code class="c">isTrue = true; // 赋值 true
isTrue = false; // 赋值 false</code>

Comparison operator:

bool type supports common comparison operators, for example:

• Equal to (==)
• Not equal to (!=)
• Greater than (> ;)
• Less than (<)
• Greater than or equal to (>=)
• Less than or equal to (<=)

Logical operators:

bool type also supports logical operators for combining Boolean values:

• Logical AND (&&)
• Logical OR (||)
• Logical NOT (!)

Use example:

• is used for control flow statements (such as if statements ).
• Used to store logical status (such as whether it has been completed).
• is used to create Boolean expressions.

Note:

• The bool type is a predefined type and does not need to be defined manually.
• bool values ​​can be used with int values ​​in expressions, and the C language will automatically convert them.
• Boolean values ​​are sometimes called flag variables or switch variables.

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