What does bool mean in C language?

bool is a data type representing Boolean values ​​(true or false) in C language and can be initialized by true and false; Boolean operators include logical AND (&&), logical OR (||) and logical NOT (!).

What is bool in C language

bool is a Boolean value (true or false) in C language data type. It is often used to store the results of logical conditions or other information that needs to be expressed as true or false.

Using bool

When using the bool data type in C language, it can be defined and initialized in the following ways:

bool is_true = true; // 将 is_true 设置为真
bool is_false = false; // 将 is_false 设置为假

Boolean value Operator

The C language provides several operators for operating Boolean values:

• Logical AND (&&): If two If both operands are true, it returns true, otherwise it returns false.
• Logical OR (||): Returns true if either of the two operands is true, otherwise returns false.
• Logical NOT (!): Invert the operand, return false if the operand is true, and return true if it is false.

Example

The following code snippet demonstrates how to use bool:

#include <stdbool.h>

int main() {
  bool is_running = true;
  while (is_running) {
    // 执行代码块
  }
  return 0;
}

In this example, the is_running variable is a Boolean value, Used to control loops. As long as is_running is true, the loop will continue executing. The loop will exit when is_running is set to false.

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