#ifndef TYPES_H
#define TYPES_H
#include "model.h"
#include <string>
#include <list>
#include <map>
#include <vector>
#include <set>
#include <gmpxx.h>
using std::list;
using std::string;
using std::map;
using std::vector;
using std::set;
const int CLS_OPT_OBJ = 1 << 3;
const int CLS_PROM_OBJ = 1 << 9;
const int CLS_SYM_OBJ = 1 << 2;
const int CLS_NUM_OBJ = 1 << 4;
const int CLS_BOOL_OBJ = 1 << 5;
const int CLS_CHAR_OBJ = 1 << 6;
const int CLS_STR_OBJ = 1 << 7;
const int CLS_VECT_OBJ = 1 << 8;
const int CLS_CONT_OBJ = 1 << 9;
const int CLS_ENVT_OBJ = 1 << 10;
static const int NUM_LVL_COMP = 0;
static const int NUM_LVL_REAL = 1;
static const int NUM_LVL_RAT = 2;
static const int NUM_LVL_INT = 3;
typedef set<EvalObj*> EvalObjAddrHash;
typedef vector<EvalObj*> EvalObjVec;
typedef map<string, EvalObj*> Str2EvalObj;
typedef EvalObj* (*BuiltinProc)(Pair *, const string &);
class PairReprCons;
/** @class Pair
* Pair construct, which can be used to represent a list, or further
* more, a syntax tree
* (car . cdr) in Scheme