How to use bool in c++

The bool type is the data type used in C to represent Boolean values ​​(true or false). The specific usage is as follows: include the <iostream> and header files. Declare a bool variable, such as: bool my_bool;. Assign true or false to the variable, such as: my_bool = true;. The bool type can be used for comparison operations, control flow conditions, function parameters/return values, and to represent binary state. The bool type can only store true or false, with 0 representing false and non-zero values ​​representing true. The bool type is in memory

The bool type in C

What is the bool type?

bool is the data type used in C to represent a Boolean value (true or false).

How to use bool type?

To use the bool type, follow these steps:

1. Include <iostream> and < in the header file stdbool.h>.

2. Declare a bool variable:

   <code class="cpp">bool my_bool;</code>

3. Assign true or false to the variable:

   <code class="cpp">my_bool = true;</code>

Other uses

In addition to storing Boolean values, the bool type can also be used for:

• Perform comparison operations, and the result is true or false.

• As a control flow condition:

  <code class="cpp">if (my_bool) {
     // 执行代码块
  }</code>

• As a function parameter or return value.

• represents binary status, such as:

  <code class="cpp">bool is_on = false; // 设备处于关闭状态</code>

Other notes

• bool type can only Stores two values: true or false.
• 0 is interpreted as false and any non-zero value is interpreted as true.
• The bool type occupies one byte in memory.

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