[GRASS-SVN] r31618 - grass/trunk/imagery/i.atcorr

[svn_grass at osgeo.org]

Author: neteler
Date: 2008-06-03 16:25:53 -0400 (Tue, 03 Jun 2008)
New Revision: 31618

Modified:
   grass/trunk/imagery/i.atcorr/main.cpp
Log:
don't access elements of vis and alt without checking that those arrays have been allocated

Modified: grass/trunk/imagery/i.atcorr/main.cpp
===================================================================
--- grass/trunk/imagery/i.atcorr/main.cpp	2008-06-03 19:07:04 UTC (rev 31617)
+++ grass/trunk/imagery/i.atcorr/main.cpp	2008-06-03 20:25:53 UTC (rev 31618)
@@ -301,8 +301,9 @@
         /* loop over all the values in the row */
 		for(col = 0; col < G_window_cols(); col++)
 		{
-			if(isnan(vis[col]) || isnan(alt[col]) || isnan(buf[col])) {buf[col] = FP_NAN; continue;}
-      alt[col] /= 1000.0f; /* converting to km from input which should be in meter */
+/* TODO: use G_set_f_null_value()?? */
+		if(vis && isnan(vis[col]) || alt && isnan(alt[col]) || isnan(buf[col])) {buf[col] = FP_NAN; continue;}
+      		alt[col] /= 1000.0f; /* converting to km from input which should be in meter */
 
             /* check if both maps are active and if whether any value has changed */
             if((ialt_fd >= 0) && (ivis_fd >= 0) && ((prev_vis != vis[col]) || (prev_alt != alt[col])))