[Plplot-cvs] SF.net SVN: plplot:[10450] trunk/src/plctrl.c

[<hez...@us...>]

Revision: 10450
          http://plplot.svn.sourceforge.net/plplot/?rev=10450&view=rev
Author:   hezekiahcarty
Date:     2009-09-21 21:02:38 +0000 (Mon, 21 Sep 2009)

Log Message:
-----------
Check for nan (not a number) values in plcol1 to avoid potential segfaults

Modified Paths:
--------------
    trunk/src/plctrl.c

Modified: trunk/src/plctrl.c
===================================================================
--- trunk/src/plctrl.c	2009-09-21 19:22:41 UTC (rev 10449)
+++ trunk/src/plctrl.c	2009-09-21 21:02:38 UTC (rev 10450)
@@ -161,7 +161,7 @@
 	plabort("plcol1: Please call plinit first");
 	return;
     }
-    if (col1 < 0 || col1 > 1) {
+    if (col1 < 0 || col1 > 1 || isnan(col1)) {
 	char buffer[BUFFER_SIZE];
 	snprintf(buffer, BUFFER_SIZE, "plcol1: Invalid color map position: %f", (PLFLT) col1);
 	plabort(buffer);


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