Index: src/libmultiple/RayleighScattering.cpp
===================================================================
--- src/libmultiple/RayleighScattering.cpp	(revision 206)
+++ src/libmultiple/RayleighScattering.cpp	(revision 207)
@@ -369,7 +369,7 @@
 
     diskTemplate_.clear();
     limbTemplate_.clear();
-    while (inFile.getline(line, MAX_LINE_LENGTH, '\n') != NULL)
+    while (inFile.getline(line, MAX_LINE_LENGTH, '\n'))
     {
         int i = 0;
         while (isDelimiter(line[i]))
@@ -439,7 +439,7 @@
     values.clear();
 
     char line[MAX_LINE_LENGTH];
-    while (inFile.getline(line, MAX_LINE_LENGTH, '\n') != NULL)
+    while (inFile.getline(line, MAX_LINE_LENGTH, '\n'))
     {
         int i = 0;
         while (isDelimiter(line[i]))
@@ -470,7 +470,7 @@
                               double &value)
 {
     char line[MAX_LINE_LENGTH];
-    while (inFile.getline(line, MAX_LINE_LENGTH, '\n') != NULL)
+    while (inFile.getline(line, MAX_LINE_LENGTH, '\n'))
     {
         int i = 0;
         while (isDelimiter(line[i]))
Index: src/libmultiple/drawStars.cpp
===================================================================
--- src/libmultiple/drawStars.cpp	(revision 206)
+++ src/libmultiple/drawStars.cpp	(revision 207)
@@ -41,7 +41,7 @@
     ifstream inFile(starMap.c_str());
 
     char line[MAX_LINE_LENGTH];
-    while (inFile.getline(line, MAX_LINE_LENGTH, '\n') != NULL)
+    while (inFile.getline(line, MAX_LINE_LENGTH, '\n'))
     {
         if (line[0] == '#') continue;
 
Index: src/readConfig.cpp
===================================================================
--- src/readConfig.cpp	(revision 206)
+++ src/readConfig.cpp	(revision 207)
@@ -550,7 +550,7 @@
 
         ifstream inFile(configFile.c_str());
         char *line = new char[256];
-        while (inFile.getline(line, 256, '\n') != NULL)
+        while (inFile.getline(line, 256, '\n'))
             readConfig(line, planetProperties);
         
         // This condition will only be true if [default] is the only
Index: src/libannotate/addArcs.cpp
===================================================================
--- src/libannotate/addArcs.cpp	(revision 206)
+++ src/libannotate/addArcs.cpp	(revision 207)
@@ -258,7 +258,7 @@
         {
             ifstream inFile(arcFile.c_str());
             char *line = new char[MAX_LINE_LENGTH];
-            while (inFile.getline (line, MAX_LINE_LENGTH, '\n') != NULL)
+            while (inFile.getline (line, MAX_LINE_LENGTH, '\n'))
                 readArcFile(line, planet, view, projection,
                             planetProperties, annotationMap);
             
@@ -292,7 +292,7 @@
         {
             ifstream inFile(arcFile.c_str());
             char *line = new char[256];
-            while (inFile.getline (line, 256, '\n') != NULL)
+            while (inFile.getline (line, 256, '\n'))
                 readArcFile(line, NULL, view, NULL, NULL, annotationMap);
 
             inFile.close();
Index: src/libannotate/addMarkers.cpp
===================================================================
--- src/libannotate/addMarkers.cpp	(revision 206)
+++ src/libannotate/addMarkers.cpp	(revision 207)
@@ -429,7 +429,7 @@
         {
             ifstream inFile(markerFile.c_str());
             char *line = new char[MAX_LINE_LENGTH];
-            while (inFile.getline (line, MAX_LINE_LENGTH, '\n') != NULL)
+            while (inFile.getline (line, MAX_LINE_LENGTH, '\n'))
             {
                 unsigned char color[3];
                 memcpy(color, planetProperties->MarkerColor(), 3);
@@ -475,7 +475,7 @@
         {
             ifstream inFile(markerFile.c_str());
             char *line = new char[MAX_LINE_LENGTH];
-            while (inFile.getline (line, MAX_LINE_LENGTH, '\n') != NULL)
+            while (inFile.getline (line, MAX_LINE_LENGTH, '\n'))
             {
                 unsigned char color[3];
                 memcpy(color, options->Color(), 3);
Index: src/libannotate/addSatellites.cpp
===================================================================
--- src/libannotate/addSatellites.cpp	(revision 206)
+++ src/libannotate/addSatellites.cpp	(revision 207)
@@ -488,10 +488,10 @@
         {
             ifstream inFile(tleFile.c_str());
             char lines[3][80];
-            while (inFile.getline(lines[0], 80) != NULL)
+            while (inFile.getline(lines[0], 80))
             {
-                if ((inFile.getline(lines[1], 80) == NULL) 
-                    || (inFile.getline(lines[2], 80) == NULL))
+                if ((!inFile.getline(lines[1], 80)) 
+                    || (!inFile.getline(lines[2], 80)))
                 {
                     ostringstream errStr;
                     errStr << "Malformed TLE file (" << tleFile << ")?\n";
@@ -542,7 +542,7 @@
         {
             ifstream inFile(satFile.c_str());
             char *line = new char[MAX_LINE_LENGTH];
-            while (inFile.getline (line, MAX_LINE_LENGTH, '\n') != NULL)
+            while (inFile.getline (line, MAX_LINE_LENGTH, '\n'))
                 readSatelliteFile(line, planet, view, projection,
                                   planetProperties, annotationMap);
             
Index: src/libannotate/addSpiceObjects.cpp
===================================================================
--- src/libannotate/addSpiceObjects.cpp	(revision 206)
+++ src/libannotate/addSpiceObjects.cpp	(revision 207)
@@ -524,7 +524,7 @@
         {
             ifstream inFile(kernelFile.c_str());
             char *line = new char[MAX_LINE_LENGTH];
-            while (inFile.getline(line, MAX_LINE_LENGTH, '\n') != NULL)
+            while (inFile.getline(line, MAX_LINE_LENGTH, '\n'))
             {
                 int ii = 0;
                 while (isDelimiter(line[ii]))
@@ -576,7 +576,7 @@
         {
             ifstream inFile(spiceFile.c_str());
             char *line = new char[MAX_LINE_LENGTH];
-            while (inFile.getline(line, MAX_LINE_LENGTH, '\n') != NULL)
+            while (inFile.getline(line, MAX_LINE_LENGTH, '\n'))
                 readSpiceFile(line, planetsFromSunMap, view, projection,
                               annotationMap);
             inFile.close();