#include <string>
#include <iostream>

//include the ffcall lib
#include </usr/include/avcall.h>

#define FUNCTION_EXTERNAL 0
//... other machine functions
#define TABLE_1 1
#define TABLE_2 2
//... other tables
#define FUNCTION_1 1
#define FUNCTION_2 2
//... other C functions
#define STORE 1
#define NOSTORE 0
//Types:
#define TYPE_INT 0
//... other primitive types

//type codes: 0 int, 1 bool

int integer_storage;

int add(int a, int b)
{
  std::cout << a + b << std::endl;
}

template<typename Arg, typename... Args>
void table1_findLookupFunction(const Arg& functionCode, int store, Args... args)
{
  switch(functionCode)
    {
      case 1:
	std::cout << "Table 1. Function code: " << functionCode << std::endl;
	std::cout << "Function: Add" << std::endl;
	if(store)
	{
	  integer_storage = add(args...);
	}
	else
	{
	  //call function
	  add(args...);
	}
	break;
      default:
	std::cout << "Couldn't find function :(" << std::endl;
    }
}

template <typename ... Arg>
void table2_findLookupFunction(int functionCode, Arg... args)
{
  std::cout << "Table 2. Function code: " << functionCode << std::endl;
}

template <typename ... Arg>
void findLookupTable(int tableCode, int functionCode, int store, Arg... args)
{
  switch(tableCode)
    {
      case 1:
	std::cout << "Table: " << tableCode << std::endl;
	table1_findLookupFunction(functionCode, store, args...);
	break;
      case 2:
	std::cout << "Table: " << tableCode << std::endl;
	table2_findLookupFunction(functionCode, store, args...);
	break;
      default:
	std::cout << "Couldn't find lookup table :(" << std::endl;
    }
}


int main()
{
  //interpreter goes here
  int command[] = {FUNCTION_EXTERNAL, TABLE_1, FUNCTION_1, STORE, 2, TYPE_INT, 2, TYPE_INT, 2};
  //loop over the commands, then...
  if(command[0] = FUNCTION_EXTERNAL)
  {
    av_alist L;
    av_start_void(L,&findLookupTable);
    av_int(L,command[1]); //push table ID
    av_int(L,command[2]); //push function ID
    av_int(L,command[3]); //push store pseudo-boolean
    for(int argIndex = 5;argIndex <= command[6];argIndex++)
    {
      std::cout << "Command: " << command[argIndex] << std::endl;
    }
    //av_int(L,10);
    //av_double(L,3.14);
    av_call(L);
  }
  //continue the loop
  return 0;
}

//compile with g++ sample.cpp -I/usr/include -lavcall