diff --git a/apps/i18n.py b/apps/i18n.py
index 8d316c859..fd4d00936 100644
--- a/apps/i18n.py
+++ b/apps/i18n.py
@@ -150,11 +150,12 @@ def print_implementation(data, path, locales):
     f.write("};\n")
     f.write("\n")
     f.write("const char * translate(Message m, Language l) {\n")
+    f.write("  assert(m != Message::UniversalMessageMarker);\n")
     f.write("  int universalMessageOffset = (int)Message::UniversalMessageMarker+1;\n")
     f.write("  if ((int)m >= universalMessageOffset) {\n")
     f.write("    assert(universalMessages[(int)m - universalMessageOffset] != nullptr);\n")
     f.write("    return universalMessages[(int)m - universalMessageOffset];\n")
-    f.write("  }")
+    f.write("  }\n")
     f.write("  int languageIndex = (int)l;\n")
     f.write("  if (l == Language::Default) {\n")
     f.write("    languageIndex = (int) GlobalPreferences::sharedGlobalPreferences()->language();\n")
diff --git a/apps/probability/cell.cpp b/apps/probability/cell.cpp
index ace6d3c35..7c711b0f6 100644
--- a/apps/probability/cell.cpp
+++ b/apps/probability/cell.cpp
@@ -5,7 +5,9 @@ namespace Probability {
 
 Cell::Cell() :
   HighlightCell(),
-  m_labelView(KDText::FontSize::Large, (I18n::Message)0, 0, 0.5, KDColorBlack, KDColorWhite)
+  m_labelView(KDText::FontSize::Large, (I18n::Message)0, 0, 0.5, KDColorBlack, KDColorWhite),
+  m_icon(nullptr),
+  m_focusedIcon(nullptr)
 {
 }
 
diff --git a/apps/probability/image_table_view.h b/apps/probability/image_table_view.h
index f8ffbe872..20a046250 100644
--- a/apps/probability/image_table_view.h
+++ b/apps/probability/image_table_view.h
@@ -54,7 +54,6 @@ private:
   ImageCell m_imageCells[k_numberOfImages];
   SelectableTableView m_selectableTableView;
   bool m_isSelected;
-  int m_selectedIcon;
   Law * m_law;
   Calculation * m_calculation;
   CalculationController * m_calculationController;
diff --git a/apps/regression/store.cpp b/apps/regression/store.cpp
index d08446066..93937fb25 100644
--- a/apps/regression/store.cpp
+++ b/apps/regression/store.cpp
@@ -160,6 +160,9 @@ double Store::columnProductSum() {
 }
 
 double Store::meanOfColumn(int i) {
+  if (m_numberOfPairs == 0) {
+    return 0;
+  }
   return sumOfColumn(i)/m_numberOfPairs;
 }
 
diff --git a/apps/sequence/list/list_parameter_controller.cpp b/apps/sequence/list/list_parameter_controller.cpp
index 4b76153f6..de4818b53 100644
--- a/apps/sequence/list/list_parameter_controller.cpp
+++ b/apps/sequence/list/list_parameter_controller.cpp
@@ -10,7 +10,8 @@ ListParameterController::ListParameterController(ListController * listController
   Shared::ListParameterController(listController, sequenceStore, I18n::Message::SequenceColor, I18n::Message::DeleteSequence),
   m_typeCell(I18n::Message::SequenceType),
   m_typeParameterController(this, sequenceStore, listController, TableCell::Layout::Horizontal, Metric::CommonTopMargin, Metric::CommonRightMargin,
-    Metric::CommonBottomMargin, Metric::CommonLeftMargin)
+    Metric::CommonBottomMargin, Metric::CommonLeftMargin),
+  m_sequence(nullptr)
 {
 }
 
diff --git a/apps/shared/interval.cpp b/apps/shared/interval.cpp
index ab8637fe7..c6e6cf96e 100644
--- a/apps/shared/interval.cpp
+++ b/apps/shared/interval.cpp
@@ -4,6 +4,7 @@
 namespace Shared {
 
 Interval::Interval() :
+  m_numberOfElements(0),
   m_start(0),
   m_end(0),
   m_step(0),
diff --git a/apps/shared/list_parameter_controller.cpp b/apps/shared/list_parameter_controller.cpp
index ef3da85ca..1a495e36d 100644
--- a/apps/shared/list_parameter_controller.cpp
+++ b/apps/shared/list_parameter_controller.cpp
@@ -8,6 +8,7 @@ ListParameterController::ListParameterController(Responder * parentResponder, Fu
   m_selectableTableView(this, this, 0, 1, Metric::CommonTopMargin, Metric::CommonRightMargin,
     Metric::CommonBottomMargin, Metric::CommonLeftMargin, this),
   m_functionStore(functionStore),
+  m_function(nullptr),
 #if FUNCTION_COLOR_CHOICE
   m_colorCell(functionColorMessage),
 #endif
diff --git a/apps/shared/values_function_parameter_controller.cpp b/apps/shared/values_function_parameter_controller.cpp
index 0f75ab3f8..262048bcb 100644
--- a/apps/shared/values_function_parameter_controller.cpp
+++ b/apps/shared/values_function_parameter_controller.cpp
@@ -15,7 +15,7 @@ ValuesFunctionParameterController::ValuesFunctionParameterController(char symbol
 
 const char * ValuesFunctionParameterController::title() {
   strlcpy(m_pageTitle, I18n::translate(I18n::Message::FunctionColumn), k_maxNumberOfCharsInTitle);
-  for (int currentChar = 0; currentChar < k_maxNumberOfCharsInTitle; currentChar++) {
+  for (int currentChar = 0; currentChar < k_maxNumberOfCharsInTitle-1; currentChar++) {
     if (m_pageTitle[currentChar] == '(') {
       m_pageTitle[currentChar-1] = *m_function->name();
       m_pageTitle[currentChar+1] = m_symbol;
diff --git a/apps/variable_box_controller.cpp b/apps/variable_box_controller.cpp
index 0b6ce0c01..33327e63a 100644
--- a/apps/variable_box_controller.cpp
+++ b/apps/variable_box_controller.cpp
@@ -10,6 +10,7 @@ using namespace Poincare;
 VariableBoxController::ContentViewController::ContentViewController(Responder * parentResponder, GlobalContext * context) :
   ViewController(parentResponder),
   m_context(context),
+  m_textFieldCaller(nullptr),
   m_firstSelectedRow(0),
   m_previousSelectedRow(0),
   m_currentPage(Page::RootMenu),
diff --git a/escher/include/escher/text_area.h b/escher/include/escher/text_area.h
index b75c50cf5..f2a6a4a38 100644
--- a/escher/include/escher/text_area.h
+++ b/escher/include/escher/text_area.h
@@ -73,7 +73,7 @@ private:
     char removeChar(size_t index);
     int removeRemainingLine(size_t index, int direction);
     char operator[](size_t index) {
-      assert(index >= 0 && index < m_bufferSize);
+      assert(index < m_bufferSize);
       return m_buffer[index];
     }
     size_t bufferSize() const {
diff --git a/escher/src/button_row_controller.cpp b/escher/src/button_row_controller.cpp
index c2bda0b88..886ef3c87 100644
--- a/escher/src/button_row_controller.cpp
+++ b/escher/src/button_row_controller.cpp
@@ -73,7 +73,7 @@ void ButtonRowController::ContentView::layoutSubviews() {
       Button * button = buttonAtIndex(i);
       totalButtonWidth += button->minimalSizeForOptimalDisplay().width();
     }
-    widthMargin = std::round((float)((bounds().width() - totalButtonWidth)/(nbOfButtons+1)));
+    widthMargin = std::round(((float)(bounds().width() - totalButtonWidth))/((float)(nbOfButtons+1)));
     buttonHeightMargin = m_size == Size::Small ? k_embossedStyleHeightMarginSmall : k_embossedStyleHeightMarginLarge;
     buttonHeight = rowHeight- 2*buttonHeightMargin;
   }
@@ -121,7 +121,7 @@ void ButtonRowController::ContentView::drawRect(KDContext * ctx, KDRect rect) co
     Button * button = buttonAtIndex(i);
     totalButtonWidth += button->minimalSizeForOptimalDisplay().width();
   }
-  KDCoordinate widthMargin = std::round((float)((bounds().width() - totalButtonWidth)/(numberOfButtons()+1)));
+  KDCoordinate widthMargin = std::round(((float)(bounds().width() - totalButtonWidth))/((float)(numberOfButtons()+1)));
 
   int currentXOrigin = widthMargin-1;
   for (int i = 0; i < numberOfButtons(); i++) {
diff --git a/escher/src/stack_view.cpp b/escher/src/stack_view.cpp
index f1e0e809b..5f125bea5 100644
--- a/escher/src/stack_view.cpp
+++ b/escher/src/stack_view.cpp
@@ -4,7 +4,8 @@ extern "C" {
 }
 
 StackView::StackView() :
-  View()
+  View(),
+  m_controller(nullptr)
 {
 }
 
diff --git a/escher/src/text_area.cpp b/escher/src/text_area.cpp
index cde013d68..4729a6eb1 100644
--- a/escher/src/text_area.cpp
+++ b/escher/src/text_area.cpp
@@ -108,7 +108,7 @@ char TextArea::Text::removeChar(size_t index) {
 
 int TextArea::Text::removeRemainingLine(size_t index, int direction) {
   assert(m_buffer != nullptr);
-  assert(index >= 0 && index < m_bufferSize);
+  assert(index < m_bufferSize);
   int jump = index;
   while (m_buffer[jump] != '\n' && m_buffer[jump] != 0 && jump >= 0) {
     jump += direction;
@@ -267,6 +267,7 @@ void TextArea::ContentView::removeStartOfLine() {
   }
   int removedLine = m_text.removeRemainingLine(m_cursorIndex-1, -1);
   if (removedLine > 0) {
+    assert(m_cursorIndex >= removedLine);
     m_cursorIndex -= removedLine;
     layoutSubviews();
     markRectAsDirty(dirtyRectFromCursorPosition(m_cursorIndex, false));
diff --git a/poincare/src/layout/grid_layout.cpp b/poincare/src/layout/grid_layout.cpp
index 495e4e9c7..92dae7a72 100644
--- a/poincare/src/layout/grid_layout.cpp
+++ b/poincare/src/layout/grid_layout.cpp
@@ -79,7 +79,7 @@ KDSize GridLayout::computeSize() {
 }
 
 ExpressionLayout * GridLayout::child(uint16_t index) {
-  if (index >= 0 && index < m_numberOfColumns*m_numberOfRows) {
+  if (index < m_numberOfColumns*m_numberOfRows) {
     return m_entryLayouts[index];
   }
   return nullptr;
diff --git a/poincare/src/least_common_multiple.cpp b/poincare/src/least_common_multiple.cpp
index 71f048e6d..43bb02e92 100644
--- a/poincare/src/least_common_multiple.cpp
+++ b/poincare/src/least_common_multiple.cpp
@@ -83,7 +83,7 @@ Complex<T> * LeastCommonMultiple::templatedApproximate(Context& context, AngleUn
     a = b;
     b = r;
   }
-  return new Complex<T>(Complex<T>::Float(std::round((T)(product/a))));
+  return new Complex<T>(Complex<T>::Float(product/a));
 }
 
 }