fix more warnings

src/OpenVolumeMesh/Core/OpenVolumeMeshProperty.hh

@@ -178,14 +178,14 @@ public:
 	}
 
 	/// Access the i'th element. No range check is performed!
-	reference operator[](int _idx) {
-		assert(size_t(_idx) < data_.size());
+  reference operator[](size_t _idx) {
+    assert(_idx < data_.size());
 		return data_[_idx];
 	}
 
 	/// Const access to the i'th element. No range check is performed!
-	const_reference operator[](int _idx) const {
-		assert(size_t(_idx) < data_.size());
+  const_reference operator[](size_t _idx) const {
+    assert(_idx < data_.size());
 		return data_[_idx];
 	}
 

src/OpenVolumeMesh/Core/ResourceManagerT.cc

@@ -106,7 +106,7 @@ PropT ResourceManager::request_property(StdVecT& _vec, const std::string& _name,
         }
     }
 
-    HandleT handle(_vec.size());
+    HandleT handle((int)_vec.size());
 
     PropT* prop = new PropT(_name, *this, handle, _def);
     prop->resize(_size);