#include "wildio.h"
#include "mymath.h"
#include <dlfcn.h>
#include <stdio.h>

double magic_number = 0.0;

int main(int argc, char** argv) {

  void *libwildio;
  int (*show_a_double_call)(double);
  double (*checkargs_call)(int,char**);

  void *libmymath; 
  double (*sqrt_call)(double), result;

  dlerror();

  if (libwildio=dlopen("libwildio.so.1",RTLD_LAZY))
  {
    checkargs_call = dlsym(libwildio,"checkargs");
    show_a_double_call = dlsym(libwildio,"show_a_double");

    /* magic_number will be set by checkargs */
    magic_number = (*checkargs_call)(argc,argv);

    if (libmymath=dlopen("libmymath.so.1",RTLD_LAZY)) {
      sqrt_call = dlsym(libmymath,"sqrt");
      magic_number = (*sqrt_call)(magic_number);

      result = (*show_a_double_call)(magic_number);

      dlclose(libmymath);
      dlclose(libwildio);

      return result;
    } 

  }

  /* last exit */
  exit(1);

}