Library Function clearerr in Stdio Class

#include <stdio.h>

int main()
{
    // Open a file for reading
    FILE* fp = fopen("myfile.txt", "r");
    if (fp == NULL) {
       
        // An error occurred while opening the file
        perror("Error opening file");
        return 1;
    }

    // Read a string from the file
    char str[100];
    while (fgets(str, 100, fp) != NULL) {
        
        // Print the string to the console
        printf("%s", str);
    }

    // Check if an error occurred or end-of-file was reached
    if (ferror(fp)) {
        
        // An error occurred while reading the file
        printf("An error occurred while reading the file.\n");

        // Clear the error indicator for the stream
        clearerr(fp);
    }
    else if (feof(fp)) {
        
        // End-of-file was reached
        printf("End-of-file was reached.\n");

        // Clear the EOF indicator for the stream
        clearerr(fp);
    }

    // Close the file
    fclose(fp);

    return 0;
}