#include <stdio.h>
    typedef struct
    {
        int number;
        char text[10];
        double real_number;
    } example;
    int main()
    {
        example data = {1, "Hello!", 3.14159265}, read_data;
        printf("%d %s %lf\n", data.number, data.text, data.real_number);
        FILE* fout = fopen("blah.txt", "w");
        fwrite(&data, sizeof(example), 1, fout);
        fclose(fout);
        FILE* fin = fopen("blah.txt", "r");
        fread(&read_data, sizeof(example), 1, fout);
        printf("%d %s %lf\n", read_data.number, read_data.text, read_data. 
    real_number);
        fclose(fin);
        return 0;
    }