Add end map when untokenizing + debug message + comment

rpn_jit.c

 		}
 	}
 
+	if(_rpn_expr_end_map(expr))
+	{
+		snprintf(expr->err_reason, 128,
+			"Error ending code map : %s",
+			strerror(errno));
+		expr->state = RPN_ERROR;
+		return -1;
+	}
+
+	expr->state = RPN_READY;
 	return 0;
 
 	ret_err:
+		expr->state = RPN_ERROR;
 		errno = err;
 		return -1;
 }

rpn_jit.h

 	size_t args_count;
 
 	/**@brief Stack values memory */
-	unsigned long *stack;
-	/**@brief rpn jit function stack size */
+	rpn_value_t *stack;
+	/**@brief rpn jit function stack size
+	 * @note item size (size in bytes is sizeof(long) * stack_sz */
 	unsigned char stack_sz;
 
 	/**@brief Expression status. Takes value in @ref RPN_ERROR,

rpn_parse.c

 					"0x%lX ", token->value);
 				break;
 			default:
+				#ifdef DEBUG
+				dprintf(2,
+"Invalid token type encountered : %d\n",
+					token->type); 
+				#endif
 				err = EUCLEAN;
 				goto free_err;
 		}