What does _bool mean in c language?

_Bool is a Boolean type in C language, used to represent two logical values ​​of true or false. _Bool features include occupying one byte of memory, storing only true and false values, and being able to operate using logical operators. The _Bool type is used to store and manipulate logical values, such as checking whether a condition is true, storing true and false values ​​in data structures, and controlling program flow.

What is _Bool

In C language, _Bool is a Boolean type, It is used to represent the two logical values ​​of true or false.

Features

• _Bool Occupies one byte of memory space.
• _Bool Variables can only store two values: true or false.
• _Bool values ​​can be initialized with the constants true and false.
• _Bool values ​​can be manipulated using logical operators such as &&, ||, !.

Usage

_Bool type is used to store and operate logical values, for example:

• Check Whether a condition is true.
• Store true and false values ​​in the data structure.
• is used to control program flow in conditional statements.

Example

<code class="c">#include <stdbool.h>

int main() {
    _Bool is_true = true;
    if (is_true) {
        printf("这是真的！\n");
    }
    return 0;
}</code>

Output:

<code>这是真的！</code>

Notes

• # The ##_Bool type is different from the int type. _Bool Variables can only store true and false values, while int variables can store any integer.
In some compilers, the
• _Bool type is built-in, while in others it is included using the stdbool.h header file.

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