--- libaitio/inc/aitio.h	2011/11/03 14:56:48	1.12.2.7
+++ libaitio/inc/aitio.h	2011/12/12 15:22:19	1.12.2.10
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: aitio.h,v 1.12.2.7 2011/11/03 14:56:48 misho Exp $
+* $Id: aitio.h,v 1.12.2.10 2011/12/12 15:22:19 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -320,7 +320,7 @@ inline array_t *io_allocVars(u_int varnum);
 /*
  * io_clrVars() Clear ait_val_t elements from array
  * @vars = Variable array
- * return: none
+ * return: -1 error or size of array
  */
 inline int io_clrVars(array_t * __restrict vars);
 /*
@@ -330,6 +330,8 @@ inline int io_clrVars(array_t * __restrict vars);
  */
 inline void io_freeVars(array_t ** __restrict vars);
 
+#define io_elemVars(_vars, _n, _val)	((ait_val_t*) io_arrayElem((_vars), (_n), (_val)))
+
 /*
  * ioPromptRead() Read data from input h[0] with prompt to output h[1]
  * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout
@@ -521,6 +523,14 @@ int io_arrayVacuum(array_t * __restrict arr, int fromW
 						*((_arr)->arr_data + _d) = NULL; \
 					} while (0)
 
+/*
+ * io_arrayElem() - Always GET/PUT element into dynamic array, if not enough elements grow array
+ * @arr = Array
+ * @n = Position
+ * @data = Element, if set NULL GET element at position or !=NULL PUT element at position
+ * return: -1 error or !=-1 return element at position
+ */
+inline void *io_arrayElem(array_t * __restrict arr, int n, void **data);
 /*
  * io_arrayPush() - Push element into dynamic array like stack manner, place at first empty position
  * @arr = Array