enum vartype_t
{
  VT_UNK = 0,
  VT_INT = 1,
  VT_INT64 = 2,
  VT_UINT = 3,
  VT_UINT64 = 4,
  VT_DOUBLE = 5,
  VT_STRING = 6,
  VT_LAST = 7
};

union var_union_t
{
  int i;
  __int64 i64;
  unsigned int ui;
  unsigned __int64 ui64;
  double d;
};

#pragma pack(push, 1)
struct variable_t
{
  char *sval;
  char dirty;
  union var_union_t vu;
  vartype_t type;
};
#pragma pack(pop)