aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/iemlib.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/iemlib.h b/src/iemlib.h
index 629cf78..ac1ffce 100644
--- a/src/iemlib.h
+++ b/src/iemlib.h
@@ -1,12 +1,13 @@
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
-iemlib written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2011 */
+iemlib written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2012 */
#ifndef __IEMLIB_H__
#define __IEMLIB_H__
+#define IS_A_NULL(atom,index) ((atom+index)->a_type == A_NULL)
#define IS_A_POINTER(atom,index) ((atom+index)->a_type == A_POINTER)
#define IS_A_FLOAT(atom,index) ((atom+index)->a_type == A_FLOAT)
#define IS_A_SYMBOL(atom,index) ((atom+index)->a_type == A_SYMBOL)
@@ -15,6 +16,8 @@ iemlib written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2011 *
#define IS_A_SEMI(atom,index) ((atom+index)->a_type == A_SEMI)
#define IS_A_COMMA(atom,index) ((atom+index)->a_type == A_COMMA)
+#define SETNULL(atom) ((atom)->a_type = A_NULL)
+
/* now miller's code starts :
for 4 point interpolation
for lookup tables