# include <stdio.h>

/* Description: An example of writing into a file
 * Author: Katia Bulekovs
 * Date: May 2022
 */


/* Note:
 *
 * Various modes of opening a file
 *
 * r  - Opens an existing file for reading
 * w  - Opens a file for writing. Overwrites existing file.Creates a new one if does not exists.
 * a  - Opens a file for appending. If file does not exists, creates a new one.
 * r+ - Opens a file for reading and writing.
 * w+ - Opens a file for reading and writing. Overwrites existing file. If file does not exists, creates a new one.
 * a+ - Opens a text file for both reading and writing. It creates the file if it does not exist. The reading will start from the beginning but writing can only be appended
 *
 * For binary files, add "b" to above modes, e.g: "rb", "wb", etc.
 */


main() {
   FILE *fp;

   fp = fopen("log.txt", "w+");
   fprintf(fp, "First line: Using fprintf to output a line.\n");
   fputs("Second line: Using fputs to output a second line.\n", fp);
   fclose(fp);
}