diff --git a/src/OpenMesh/Core/IO/writer/OFFWriter.cc b/src/OpenMesh/Core/IO/writer/OFFWriter.cc
index 23d6c04f..bdd3d26e 100644
--- a/src/OpenMesh/Core/IO/writer/OFFWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/OFFWriter.cc
@@ -178,7 +178,7 @@ write_ascii(std::ostream& _out, BaseExporter& _be, Options _opt) const
   omlog() << "[OFFWriter] : write ascii file\n";
 
 
-  unsigned int i, j, nV, nF;
+  unsigned int i, nV, nF;
   Vec3f v, n;
   Vec2f t;
   OpenMesh::Vec3i c;
@@ -292,7 +292,7 @@ write_ascii(std::ostream& _out, BaseExporter& _be, Options _opt) const
     {
       nV = _be.get_vhandles(FaceHandle(i), vhandles);
       _out << nV << " ";
-      for (j=0; j<vhandles.size(); ++j)
+      for (size_t j=0; j<vhandles.size(); ++j)
 	       _out << vhandles[j].idx() << " ";
 
       //face color
@@ -356,7 +356,7 @@ write_binary(std::ostream& _out, BaseExporter& _be, Options _opt) const
   omlog() << "[OFFWriter] : write binary file\n";
 
 
-  unsigned int i, j, nV, nF;
+  unsigned int i, nV, nF;
   Vec3f v, n;
   Vec2f t;
   OpenMesh::Vec4i c;
@@ -457,7 +457,7 @@ write_binary(std::ostream& _out, BaseExporter& _be, Options _opt) const
       //face
       nV = _be.get_vhandles(FaceHandle(i), vhandles);
       writeValue(_out, nV);
-      for (j=0; j<vhandles.size(); ++j)
+      for (size_t j=0; j<vhandles.size(); ++j)
         writeValue(_out, vhandles[j].idx() );
 
       //face color
@@ -535,15 +535,12 @@ binary_size(BaseExporter& _be, Options _opt) const
   }
   else
   {
-    unsigned int i, nV, nF;
+    unsigned int i, nF;
     std::vector<VertexHandle> vhandles;
 
     for (i=0, nF=int(_be.n_faces()); i<nF; ++i)
-    {
-      nV = _be.get_vhandles(FaceHandle(i), vhandles);
-      data += nV * sizeof(unsigned int);
+      data += _be.get_vhandles(FaceHandle(i), vhandles) * sizeof(unsigned int);
 
-    }
   }
 
   // face colors
diff --git a/src/OpenMesh/Core/IO/writer/PLYWriter.cc b/src/OpenMesh/Core/IO/writer/PLYWriter.cc
index 0c10b311..64e7acbb 100644
--- a/src/OpenMesh/Core/IO/writer/PLYWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/PLYWriter.cc
@@ -233,7 +233,7 @@ write_ascii(std::ostream& _out, BaseExporter& _be, Options _opt) const
 {
   omlog() << "[PLYWriter] : write ascii file\n";
 
-  unsigned int i, j, nV, nF;
+  unsigned int i, nV, nF;
   Vec3f v, n;
   OpenMesh::Vec3ui c;
   OpenMesh::Vec4ui cA;
@@ -327,7 +327,7 @@ write_ascii(std::ostream& _out, BaseExporter& _be, Options _opt) const
     {
       nV = _be.get_vhandles(FaceHandle(i), vhandles);
       _out << nV << " ";
-      for (j=0; j<vhandles.size(); ++j)
+      for (size_t j=0; j<vhandles.size(); ++j)
          _out << vhandles[j].idx() << " ";
 
 //       //face color
@@ -420,7 +420,7 @@ write_binary(std::ostream& _out, BaseExporter& _be, Options _opt) const
 {
   omlog() << "[PLYWriter] : write binary file\n";
 
-  unsigned int i, j, nV, nF;
+  unsigned int i, nV, nF;
   Vec3f v, n;
   Vec2f t;
   OpenMesh::Vec4uc c;
@@ -509,7 +509,7 @@ write_binary(std::ostream& _out, BaseExporter& _be, Options _opt) const
       //face
       nV = _be.get_vhandles(FaceHandle(i), vhandles);
       writeValue(ValueTypeUINT8, _out, nV);
-      for (j=0; j<vhandles.size(); ++j)
+      for (size_t j=0; j<vhandles.size(); ++j)
         writeValue(ValueTypeINT32, _out, vhandles[j].idx() );
 
 //       //face color
@@ -577,13 +577,12 @@ binary_size(BaseExporter& _be, Options _opt) const
   }
   else
   {
-    unsigned int i, nV, nF;
+    unsigned int i, nF;
     std::vector<VertexHandle> vhandles;
 
     for (i=0, nF=int(_be.n_faces()); i<nF; ++i)
     {
-      nV = _be.get_vhandles(FaceHandle(i), vhandles);
-      data += nV * sizeof(unsigned int);
+      data += _be.get_vhandles(FaceHandle(i), vhandles) * sizeof(unsigned int);
 
     }
   }
diff --git a/src/OpenMesh/Tools/Smoother/SmootherT.cc b/src/OpenMesh/Tools/Smoother/SmootherT.cc
index 1a5c6684..ae84b038 100644
--- a/src/OpenMesh/Tools/Smoother/SmootherT.cc
+++ b/src/OpenMesh/Tools/Smoother/SmootherT.cc
@@ -160,12 +160,11 @@ set_active_vertices()
 
 
   // tagg all active vertices
-  bool active;
   for (v_it=mesh_.vertices_begin(); v_it!=v_end; ++v_it)
   {
-    active = ((nothing_selected || mesh_.status(*v_it).selected())
-	          && !mesh_.is_boundary(*v_it)
-	          && !mesh_.status(*v_it).locked());
+    bool active = ((nothing_selected || mesh_.status(*v_it).selected())
+	                 && !mesh_.is_boundary(*v_it)
+	                 && !mesh_.status(*v_it).locked());
 
     if ( skip_features_ ) {
 
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.cc b/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.cc
index 3da35fdc..469611b9 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.cc
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.cc
@@ -992,9 +992,7 @@ void CompositeT<MeshType,RealType>::VV()
 {
   assert(p_mesh_); MeshType& mesh_ = *p_mesh_;
 
-  unsigned int                        valence;
-  typename MeshType::Point                cog,
-                                      zero_point(0.0, 0.0, 0.0);
+  typename MeshType::Point                cog, zero_point(0.0, 0.0, 0.0);
   typename MeshType::VertexVertexIter     vv_it;
   typename MeshType::VertexIter           v_it;
   std::vector<typename MeshType::Point>   point_vector;
@@ -1003,7 +1001,7 @@ void CompositeT<MeshType,RealType>::VV()
 
   for (v_it = mesh_.vertices_begin(); v_it != mesh_.vertices_end(); ++v_it) {
 
-    valence = 0;
+    unsigned int valence = 0;
     cog = zero_point;
 
     for (vv_it = mesh_.vv_iter(*v_it); vv_it; ++vv_it) {
@@ -1141,9 +1139,7 @@ void CompositeT<MeshType,RealType>::EdEc(scalar_t _c)
 {
   assert(p_mesh_); MeshType& mesh_ = *p_mesh_;
 
-  unsigned int                         valence;
-  typename MeshType::Point                 cog,
-                                       zero_point(0.0, 0.0, 0.0);
+  typename MeshType::Point                 cog, zero_point(0.0, 0.0, 0.0);
   typename MeshType::EdgeIter              e_it;
   typename MeshType::HalfedgeHandle        heh;
   std::vector<typename MeshType::Point>    point_vector;
@@ -1152,7 +1148,7 @@ void CompositeT<MeshType,RealType>::EdEc(scalar_t _c)
 
   for (e_it = mesh_.edges_begin(); e_it != mesh_.edges_end(); ++e_it)
   {
-    valence = 0;
+    unsigned int valence = 0;
     cog = zero_point;
 
     for (int i = 0; i <= 1; ++i) {