file_hangs_corrected.c

// http://stackoverflow.com/questions/38515708

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char argv[]){
    char *filename = "test.db";
    int my_int = 42;

    // First we open file and write to it
    FILE *file = fopen(filename, "w");
    fwrite(&my_int, sizeof(int), 1, file);
    fclose(file);

    // Then we read from it
    my_int = -1;
    file = fopen(filename, "r");
    fread(&my_int, sizeof(int), 1, file);
    fclose(file);

    // Should print "Read back 42"
    printf("Read back %d\n", my_int);
    
    return 0;
}