fix -Wreturn-std-move

src/3rdParty/salomesmesh/src/NETGENPlugin/NETGENPlugin_Mesher.cpp

@@ -2350,7 +2350,7 @@ namespace
         << ": " << ex.DynamicType()->Name();
     if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
       str << ": " << ex.GetMessageString();
-    return str;
+    return std::move(str);
   }
   //================================================================================
   /*!
@@ -2364,7 +2364,7 @@ namespace
     if ( strlen( netgen::multithread.task ) > 0 )
       str << " at " << netgen::multithread.task;
     str << ": " << ex.What();
-    return str;
+    return std::move(str);
   }
 
   //================================================================================

src/3rdParty/salomesmesh/src/SMESH/GEOMUtils.cpp

@@ -643,7 +643,7 @@ TopoDS_Shape GEOMUtils::CompsolidToCompound (const TopoDS_Shape& theCompsolid)
     }
   }
 
-  return aCompound;
+  return std::move(aCompound);
 }
 
 //=======================================================================

src/3rdParty/salomesmesh/src/SMESH/SMESH_subMesh.cpp

@@ -2100,7 +2100,7 @@ TopoDS_Shape SMESH_subMesh::getCollection(SMESH_Gen * theGen,
     }
   }
 
-  return aCompound;
+  return std::move(aCompound);
 }
 
 //=======================================================================

src/Gui/ViewProviderPythonFeature.cpp

@@ -374,7 +374,7 @@ QIcon ViewProviderPythonFeatureImp::getIcon() const
 std::vector<App::DocumentObject*> 
 ViewProviderPythonFeatureImp::claimChildren(std::vector<App::DocumentObject*>&& base) const 
 {
-    _FC_PY_CALL_CHECK(claimChildren,return(base));
+    _FC_PY_CALL_CHECK(claimChildren,return (std::move(base)));
 
     std::vector<App::DocumentObject*> children;
     Base::PyGILStateLocker lock;

src/Mod/Part/App/FaceMakerCheese.cpp

@@ -236,7 +236,7 @@ TopoDS_Shape FaceMakerCheese::makeFace(const std::vector<TopoDS_Wire>& w)
                 builder.Add(comp, aFace);
         }
 
-        return comp;
+        return std::move(comp);
     }
     else {
         return TopoDS_Shape(); // error

src/Mod/Part/App/TopoShape.cpp

@@ -2226,7 +2226,7 @@ TopoDS_Shape TopoShape::makeHelix(Standard_Real pitch, Standard_Real height,
     TopoDS_Edge edgeOnSurf = BRepBuilderAPI_MakeEdge(segm , surf);
     TopoDS_Wire wire = BRepBuilderAPI_MakeWire(edgeOnSurf);
     BRepLib::BuildCurves3d(wire);
-    return wire;
+    return std::move(wire);
 }
 
 //***********
@@ -2312,7 +2312,7 @@ TopoDS_Shape TopoShape::makeLongHelix(Standard_Real pitch, Standard_Real height,
 
     TopoDS_Wire wire = mkWire.Wire();
     BRepLib::BuildCurves3d(wire);
-    return wire;
+    return std::move(wire);
 }
 
 TopoDS_Shape TopoShape::makeThread(Standard_Real pitch,
@@ -2932,7 +2932,7 @@ TopoDS_Shape TopoShape::makeOffset2D(double offset, short joinType, bool fill, b
         builder.MakeCompound(result);
         for(TopoDS_Shape &sh : shapesToReturn)
             builder.Add(result, sh);
-        return result;
+        return std::move(result);
     }
     else {
         return shapesToReturn[0];
@@ -3179,7 +3179,7 @@ TopoDS_Shape TopoShape::removeSplitter() const
                 builder.Add(comp, xp.Current());
         }
 
-        return comp;
+        return std::move(comp);
     }
 
     return _Shape;

src/Mod/Part/Gui/DlgProjectionOnSurface.cpp

@@ -542,7 +542,7 @@ TopoDS_Shape PartGui::DlgProjectionOnSurface::create_compound(const std::vector<
       }
     }
   }
-  return aCompound;
+  return std::move(aCompound);
 }
 
 void PartGui::DlgProjectionOnSurface::show_projected_shapes(const std::vector<SShapeStore>& iShapeStoreVec)

src/Mod/Path/App/Area.cpp

@@ -1730,7 +1730,7 @@ TopoDS_Shape Area::toShape(CArea &area, short fill, int reorient) {
                 builder.Add(compound,s);\
             }\
             if(TopExp_Explorer(compound,TopAbs_EDGE).More())\
-                return compound;\
+                return std::move(compound);\
             return TopoDS_Shape();\
         }\
         return mySections[_index]->_op(_index, ## __VA_ARGS__);\
@@ -1868,7 +1868,7 @@ TopoDS_Shape Area::makeOffset(int index,PARAM_ARGS(PARAM_FARG,AREA_PARAMS_OFFSET
     if(thicken)
         FC_DURATION_LOG(d,"Thicken");
     if(TopExp_Explorer(compound,TopAbs_EDGE).More())
-        return compound;
+        return std::move(compound);
     return TopoDS_Shape();
 }
 
@@ -2255,7 +2255,7 @@ TopoDS_Shape Area::toShape(const CArea &area, bool fill, const gp_Trsf *trsf, in
             AREA_WARN("FaceMakerBullseye failed: "<<e.what());
         }
     }
-    return compound;
+    return std::move(compound);
 }
 
 struct WireInfo {