How to use bool in c language

The bool type in C language represents true/false, and the value is 1 (true) or 0 (false). You can use bool is_true = true; to declare and initialize Boolean variables, or you can use the true/false keyword. Bool variables can use logical NOT, AND, OR, and XOR operations. Bool expressions are used in conditional statements and loops. The bool type can be implicitly converted to the int type (1: true, 0: false); the int type can also be implicitly converted to the bool type (non-zero: true, 0: false).

Usage of bool type in C language

In C language, ## The #bool type is a Boolean type, used to represent true (true) or false (false). It is a basic data type whose value can only be 1 (true) or 0 (false).

Declare a bool variable

To declare a

bool variable, you can use the following syntax:

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

InitializationboolVariables

Can be initialized at declaration time or explicit assignment

boolVariables:

<code class="c">bool is_true = true;
bool is_false = 0;</code>

Alternatively, you can Using the

true and false keywords:

<code class="c">bool is_true = true;
bool is_false = false;</code>

boolOperation

You can use the following operations The operator operates on the

bool variable:

• Logical negation (!): changes true to false and vice versa.
• Logical AND (&&): The result is true only when both operands are true.
• Logical OR (||): When any one operand is true, the result is true.
• XOR (^): The result is true only when the two operands are not the same.

boolexpression

boolexpression evaluates to true Or an expression of false. They are commonly used in conditional statements and loops.

For example:

<code class="c">if (is_true) {
  // 真值代码块
} else {
  // 假值代码块
}</code>

bool and integer conversion

##bool

type can be implicitly converted For int type:

When the

bool
• value is true, it is converted to 1. When the
bool
• value is false, it is converted to 0.
Vice versa,

int

values ​​can be implicitly converted to bool types:

when

int# When the ## value is non-zero, it converts to
• true. When the int
value is zero, it is converted to
• false.

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