getline function in C

#include <stdio.h>

int main() {
    char *line = NULL;
    size_t len = 0;
    ssize_t read;

    printf("Enter a line of text: ");
    read = getline(&line, &len, stdin);

    if (read != -1) {
        printf("You entered: %s", line);
    } else {
        printf("Error reading input");
    }

    free(line);
    return 0;
}

1. Include the necessary header file for standard input/output operations.
2. Define the main function.
3. Declare a pointer line to a character and initialize it to NULL. Declare a variable len of type size_t to store the length of the line.
4. Declare a variable read of type ssize_t to store the number of characters read by getline.
5. Prompt the user to enter a line of text using printf.
6. Call the getline function, passing the address of the line pointer, the address of the len variable, and stdin as arguments. Assign the return value to the read variable.
7. Check if the value of read is not equal to -1, indicating successful input.
8. If input was successful, print the entered line using printf.
9. If there was an error reading input (if read is -1), print an error message.
10. Free the memory allocated for the line using the free function.
11. Return 0 to indicate successful program execution.