#include <stdio.h>
#include "ruby.h"

RUBY_GLOBAL_SETUP

static VALUE eval(const char * string)
{
    int state;
    VALUE v = rb_eval_string_protect(string, &state);
    if (state != 0)
    {
        fprintf(stderr, "rb_eval_string_protect() returned state %d!\n", state);
        rb_set_errinfo(Qnil);
    }
    return v;
}

int main(int argc, char *argv[])
{
    ruby_sysinit(&argc, &argv);
    {
        RUBY_INIT_STACK;
        ruby_init();
        ruby_init_loadpath();
        VALUE v = eval("3 + 8");
        printf("v: %d\n", FIX2INT(v));
        eval("File.open('out.txt', 'w') {|fh| fh.puts 'hello!'}");
        eval("puts 'Hello, World!'");
        ruby_finalize();
    }
    return 0;
}