diff --git a/Sofa/Component/Collision/Response/Mapper/src/sofa/component/collision/response/mapper/init.cpp b/Sofa/Component/Collision/Response/Mapper/src/sofa/component/collision/response/mapper/init.cpp
index 562f561e99c..63f7ecf1791 100644
--- a/Sofa/Component/Collision/Response/Mapper/src/sofa/component/collision/response/mapper/init.cpp
+++ b/Sofa/Component/Collision/Response/Mapper/src/sofa/component/collision/response/mapper/init.cpp
@@ -48,9 +48,10 @@ const char* getModuleVersion()
     return MODULE_VERSION;
 }
 
-void registerObjects(sofa::core::ObjectFactory* factory)
+void registerObjects(sofa::core::ObjectFactory* /*factory*/)
 {
     // this library does not register any component in the Factory
+    SOFA_UNUSED(factory);
 }
 
 void init()
diff --git a/Sofa/GUI/Qt/src/sofa/gui/qt/SimpleDataWidget.cpp b/Sofa/GUI/Qt/src/sofa/gui/qt/SimpleDataWidget.cpp
index 7942456a333..0cca21cc8c3 100644
--- a/Sofa/GUI/Qt/src/sofa/gui/qt/SimpleDataWidget.cpp
+++ b/Sofa/GUI/Qt/src/sofa/gui/qt/SimpleDataWidget.cpp
@@ -241,8 +241,8 @@ SelectableItemWidget::SelectableItemWidget(QWidget* parent, const char* name,
 
 bool SelectableItemWidget::createWidgets()
 {
-    if (Tdata && Tdata->getValueTypeString() != "SelectableItem" ||
-        baseData && baseData->getValueTypeString() != "SelectableItem")
+    if ((Tdata && Tdata->getValueTypeString() != "SelectableItem") ||
+        (baseData && baseData->getValueTypeString() != "SelectableItem"))
     {
         return false;
     }
diff --git a/Sofa/framework/LinearAlgebra/src/sofa/linearalgebra/CompressedRowSparseMatrixConstraintEigenUtils.h b/Sofa/framework/LinearAlgebra/src/sofa/linearalgebra/CompressedRowSparseMatrixConstraintEigenUtils.h
index 434d8758e37..3096d8d1c49 100644
--- a/Sofa/framework/LinearAlgebra/src/sofa/linearalgebra/CompressedRowSparseMatrixConstraintEigenUtils.h
+++ b/Sofa/framework/LinearAlgebra/src/sofa/linearalgebra/CompressedRowSparseMatrixConstraintEigenUtils.h
@@ -68,7 +68,7 @@ struct CompressedRowSparseMatrixToEigenSparseVec
                     if (row.index() < eigenMat.rows())
                     {
                         const auto colInsertion = colIndex + i;
-                        if (colInsertion < eigenMat.cols())
+                        if (colInsertion < (std::size_t)eigenMat.cols())
                         {
                             triplets.emplace_back(row.index(), colInsertion, vec[i]);
                         }
diff --git a/Sofa/framework/Simulation/Core/src/sofa/simulation/Node.cpp b/Sofa/framework/Simulation/Core/src/sofa/simulation/Node.cpp
index 8032425b1dc..f4f2ce91e80 100644
--- a/Sofa/framework/Simulation/Core/src/sofa/simulation/Node.cpp
+++ b/Sofa/framework/Simulation/Core/src/sofa/simulation/Node.cpp
@@ -94,13 +94,13 @@ Node::Node(const std::string& name)
     , configurationSetting(initLink("configurationSetting", "The ConfigurationSetting(s) attached to this node"))
     , shaders(initLink("shaders", "The shaders attached to this node"))
     , visualModel(initLink("visualModel", "The VisualModel(s) attached to this node"))
-    , visualStyle(initLink("visualStyle", "The VisualStyle(s) attached to this node"))
     , visualManager(initLink("visualManager", "The VisualManager(s) attached to this node"))
     , collisionModel(initLink("collisionModel", "The CollisionModel(s) attached to this node"))
     , unsorted(initLink("unsorted", "The remaining objects attached to this node"))
 
     , animationManager(initLink("animationLoop","The AnimationLoop attached to this node (only valid for root node)"))
     , visualLoop(initLink("visualLoop", "The VisualLoop attached to this node (only valid for root node)"))
+    , visualStyle(initLink("visualStyle", "The VisualStyle(s) attached to this node"))
     , topology(initLink("topology", "The Topology attached to this node"))
     , meshTopology(initLink("meshTopology", "The MeshTopology / TopologyContainer attached to this node"))
     , state(initLink("state", "The State attached to this node (storing vectors such as position, velocity)"))
diff --git a/Sofa/framework/Simulation/Core/src/sofa/simulation/VisualVisitor.cpp b/Sofa/framework/Simulation/Core/src/sofa/simulation/VisualVisitor.cpp
index e64d50dda39..3c048b2568f 100644
--- a/Sofa/framework/Simulation/Core/src/sofa/simulation/VisualVisitor.cpp
+++ b/Sofa/framework/Simulation/Core/src/sofa/simulation/VisualVisitor.cpp
@@ -48,12 +48,14 @@ Visitor::Result VisualVisitor::processNodeTopDown(simulation::Node* node)
 
 void VisualVisitor::fwdProcessVisualStyle(simulation::Node* node, core::visual::BaseVisualStyle* vm)
 {
+    SOFA_UNUSED(node);
     vm-> updateVisualFlags(vparams);
 }
 
 
 void VisualVisitor::bwdProcessVisualStyle(simulation::Node* node, core::visual::BaseVisualStyle* vm)
 {
+    SOFA_UNUSED(node);
     vm-> applyBackupFlags(vparams);
 }
 
diff --git a/Sofa/framework/Type/src/sofa/type/MatSym.h b/Sofa/framework/Type/src/sofa/type/MatSym.h
index 8a4140fdfb4..5de7389e6d1 100644
--- a/Sofa/framework/Type/src/sofa/type/MatSym.h
+++ b/Sofa/framework/Type/src/sofa/type/MatSym.h
@@ -137,7 +137,7 @@ class MatSym : public VecNoInit<D * (D + 1) / 2, real>
     {
         for (sofa::Size j = 0; j < D; j++)
         {
-            for (int i = 0; i <= j; i++)
+            for (sofa::Size i = 0; i <= j; i++)
             {
                 W(i, j) = (M(i, j) + M(j, i)) / 2;
             }
diff --git a/Sofa/framework/Type/test/StrongType_test.cpp b/Sofa/framework/Type/test/StrongType_test.cpp
index 767813b0baa..e18426be54e 100644
--- a/Sofa/framework/Type/test/StrongType_test.cpp
+++ b/Sofa/framework/Type/test/StrongType_test.cpp
@@ -31,6 +31,7 @@ TEST(StrongType, constructor)
 
     // myint a; //this is not possible as the default constructor is explicit
     constexpr myint a ( 2 );
+    EXPECT_EQ(a.get(), 2);
 }
 
 TEST(StrongType, preIncrementable)
diff --git a/applications/projects/SofaPhysicsAPI/src/SofaPhysicsAPI/SofaPhysicsSimulation.cpp b/applications/projects/SofaPhysicsAPI/src/SofaPhysicsAPI/SofaPhysicsSimulation.cpp
index f0e53e0ac62..56e4c217bec 100644
--- a/applications/projects/SofaPhysicsAPI/src/SofaPhysicsAPI/SofaPhysicsSimulation.cpp
+++ b/applications/projects/SofaPhysicsAPI/src/SofaPhysicsAPI/SofaPhysicsSimulation.cpp
@@ -1123,13 +1123,12 @@ void SofaPhysicsSimulation::calcProjection()
     xFactor *= 0.01;
     yFactor *= 0.01;
 
-    //std::cout << xNear << " " << yNear << std::endl;
-
-    double zForeground = -vparams->zNear() - offset;
-    double zBackground = -vparams->zFar() + offset;
-
     if (currentCamera->getCameraType() == sofa::core::visual::VisualParams::PERSPECTIVE_TYPE)
-        gluPerspective(currentCamera->getFieldOfView(), (double) width / (double) height, vparams->zNear(), vparams->zFar());
+    {
+        gluPerspective(currentCamera->getFieldOfView(),
+                       (double) width / (double) height,
+                       vparams->zNear(),vparams->zFar());
+    }
     else
     {
         double ratio = vparams->zFar() / (vparams->zNear() * 20);
@@ -1138,8 +1137,8 @@ void SofaPhysicsSimulation::calcProjection()
         {
             ratio = -300 * (tcenter.norm2()) / tcenter[2];
         }
-        glOrtho((-xNear * xFactor) * ratio, (xNear * xFactor) * ratio, (-yNear
-                * yFactor) * ratio, (yNear * yFactor) * ratio,
+        glOrtho((-xNear * xFactor) * ratio, (xNear * xFactor) * ratio,
+                (-yNear * yFactor) * ratio, (yNear * yFactor) * ratio,
                 vparams->zNear(), vparams->zFar());
     }