simple way to create a new file in c

newfile.c

#include <stdio.h>

int main(void){

    // write a program that creates a simple txt file

    // create a FILE pointer data type fp
    // this is a new file we are creating

    FILE * fp;

    // we have to fopen the file and choose what mode we
    // want to be in, which in this case is "w" for write
    // fopen returns a FILE pointer data type which is what
    // we need to do actions like write or read etc
    // This file doesn't exist yet so this variable is just
    // an empty bucket until we fill it with data using fwrite

    fp = fopen("mynewfile.txt", "w");

    // we'll have some data we want in the file within an array

    char data[] = "nice\n";

    // this is an array ['n','i','c','e'];

    // we'll invoke the fwrite function and pass it
    // the data (array), the size of each element,
    // the total number of elements and the pointer to the file.
    // In our case
    // we will use sizeof(array) because we are
    // going to write every char within our array (a string)

    fwrite(data, sizeof(data[0]), sizeof(data), fp);

    fclose(fp);

    return 0;
}