Index: trunk/Mars/msimcamera/MSimCamera.cc
===================================================================
--- trunk/Mars/msimcamera/MSimCamera.cc	(revision 18333)
+++ trunk/Mars/msimcamera/MSimCamera.cc	(revision 18957)
@@ -155,9 +155,9 @@
     }
     // Check all entries for inf and nan. Those are not accepted here.
-    for( int row_index=0; row_index<fFixTimeOffsetsBetweenPixelsInNs->fM.size(); row_index++){
-        std::vector<double> row = fFixTimeOffsetsBetweenPixelsInNs->fM.at(row_index);
-        for( int col_index=0; col_index<row.size(); col_index++){
-            double specific_delay = row.at(col_index);
-            if( std::isnan(specific_delay) || std::isinf(specific_delay) ){
+    for(size_t row_index=0; row_index<fFixTimeOffsetsBetweenPixelsInNs->fM.size(); row_index++){
+        const vector<double> row = fFixTimeOffsetsBetweenPixelsInNs->fM.at(row_index);
+        for(size_t col_index=0; col_index<row.size(); col_index++){
+            const double specific_delay = row.at(col_index);
+            if( isnan(specific_delay) || isinf(specific_delay) ){
                 *fLog << err << "In Source: "<< __FILE__ <<" in line: ";
                 *fLog << __LINE__;