diff --git a/CMakeLists.txt b/CMakeLists.txt
index a36a68a7..46bbc78d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -326,10 +326,9 @@ endif ()
 set (WARNING_FLAGS "")
 #set (WARNING_FLAGS "${WARNING_FLAGS} -Wfatal-errors")
 #set (WARNING_FLAGS "${WARNING_FLAGS} -Wall -Wextra")
-#set (WARNING_FLAGS "${WARNING_FLAGS} -Wformat=2 -Wformat-security -Wuninitialized")
-#set (WARNING_FLAGS "${WARNING_FLAGS} -Winit-self -Wno-stack-protector")
+set (WARNING_FLAGS "${WARNING_FLAGS} -Wformat=2 -Wformat-security -Wuninitialized")
+set (WARNING_FLAGS "${WARNING_FLAGS} -Winit-self -Wno-stack-protector")
 #set (WARNING_FLAGS "${WARNING_FLAGS} -Wconversion -Wsign-conversion")
-#set (WARNING_FLAGS "${WARNING_FLAGS} -Wmissing-declarations")
 
 if ("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
   set (BUILD_FLAGS "${BUILD_FLAGS} -O0")
diff --git a/Source/File-Management/Dumper/BMPDumper.cpp b/Source/File-Management/Dumper/BMPDumper.cpp
index 14f1a084..bfeb712f 100644
--- a/Source/File-Management/Dumper/BMPDumper.cpp
+++ b/Source/File-Management/Dumper/BMPDumper.cpp
@@ -209,13 +209,16 @@ BMPDumper<GridCoordinate3D>::writeToFile (Grid<GridCoordinate3D> *grid, /**< gri
   getMaxValues (maxRe, minRe, maxIm, minIm, maxMod, minMod,
                 grid, startCoord, endCoord, time_step_back);
 
-  grid_coord coordStart1, coordEnd1;
-  grid_coord coordStart2, coordEnd2;
-  grid_coord coordStart3, coordEnd3;
+  grid_coord coordStart1 = 0;
+  grid_coord coordEnd1 = 0;
+  grid_coord coordStart2 = 0;
+  grid_coord coordEnd2 = 0;
+  grid_coord coordStart3 = 0;
+  grid_coord coordEnd3 = 0;
 
-  grid_coord size1;
-  grid_coord size2;
-  grid_coord size3;
+  grid_coord size1 = 0;
+  grid_coord size2 = 0;
+  grid_coord size3 = 0;
 
   if (BMPhelper.getOrthogonalAxis () == OrthogonalAxis::X)
   {
@@ -259,6 +262,10 @@ BMPDumper<GridCoordinate3D>::writeToFile (Grid<GridCoordinate3D> *grid, /**< gri
     coordEnd3 = endCoord.get2 ();
     size3 = sy;
   }
+  else
+  {
+    UNREACHABLE;
+  }
 
   // Create image for current values and max/min values.
   for (grid_coord coord1 = coordStart1; coord1 < coordEnd1; ++coord1)
diff --git a/Source/Scheme/Scheme.inc.h b/Source/Scheme/Scheme.inc.h
index 5b0aa569..c80563d4 100644
--- a/Source/Scheme/Scheme.inc.h
+++ b/Source/Scheme/Scheme.inc.h
@@ -4558,7 +4558,7 @@ Scheme<Type, TCoord, layout_type>::saveNTFF (bool isReverse, time_step t)
     rightNTFF = rightNTFF - stepNTFF;
 
     std::ofstream outfile;
-    std::ostream *outs;
+    std::ostream *outs = NULLPTR;
     const char *strName;
     FPValue start;
     FPValue end;