#include <stdio.h>
#include <string.h>

#define BINARY_FILE_NAME_MAXLEN 10

typedef struct _prv_instance_
{
    char binary_filename [BINARY_FILE_NAME_MAXLEN];
} prv_instance_t;


int main()
{
    prv_instance_t foo, bar;
    strcpy(foo.binary_filename, "Hello");
    strcpy(bar.binary_filename, "World");

    printf("%s %s\n", foo.binary_filename, bar.binary_filename);
    return 0;
}