ENH: use Zero when zero-initializing types

- makes the intent clearer and avoids the need for additional
  constructor casting. Eg,

      labelList(10, Zero)    vs.  labelList(10, 0)
      scalarField(10, Zero)  vs.  scalarField(10, scalar(0))
      vectorField(10, Zero)  vs.  vectorField(10, vector::zero)

applications/solvers/combustion/chemFoam/readInitialConditions.H

@@ -29,8 +29,8 @@
         );
     }
 
-    scalarList Y0(nSpecie, 0.0);
+    scalarList Y0(nSpecie, Zero);
-    scalarList X0(nSpecie, 0.0);
+    scalarList X0(nSpecie, Zero);
 
     dictionary fractions(initialConditions.subDict("fractions"));
     if (fractionBasis == "mole")

applications/solvers/compressible/rhoCentralFoam/BCs/T/smoluchowskiJumpTFvPatchScalarField.C

@@ -44,7 +44,7 @@ Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
     psiName_("thermo:psi"),
     muName_("thermo:mu"),
     accommodationCoeff_(1.0),
-    Twall_(p.size(), 0.0),
+    Twall_(p.size(), Zero),
     gamma_(1.4)
 {
     refValue() = 0.0;

applications/solvers/compressible/rhoCentralFoam/BCs/U/maxwellSlipUFvPatchVectorField.C

@@ -45,7 +45,7 @@ Foam::maxwellSlipUFvPatchVectorField::maxwellSlipUFvPatchVectorField
     muName_("thermo:mu"),
     tauMCName_("tauMC"),
     accommodationCoeff_(1.0),
-    Uwall_(p.size(), vector(0.0, 0.0, 0.0)),
+    Uwall_(p.size(), Zero),
     thermalCreep_(true),
     curvature_(true)
 {}

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionSimpleFoam/fluid/createFluidFields.H

@@ -12,7 +12,7 @@ PtrList<radiation::radiationModel> radiation(fluidRegions.size());
 
 List<scalar> initialMassFluid(fluidRegions.size());
 List<label> pRefCellFluid(fluidRegions.size(), -1);
-List<scalar> pRefValueFluid(fluidRegions.size(), 0.0);
+List<scalar> pRefValueFluid(fluidRegions.size(), Zero);
 List<bool> frozenFlowFluid(fluidRegions.size(), false);
 
 PtrList<dimensionedScalar> rhoMax(fluidRegions.size());

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/createFluidFields.H

@@ -248,7 +248,7 @@ forAll(fluidRegions, i)
                 IOobject::AUTO_WRITE
             ),
             fluidRegions[i],
-            dimensionedScalar("Qdot", dimEnergy/dimVolume/dimTime, 0.0)
+            dimensionedScalar(dimEnergy/dimVolume/dimTime, Zero)
         )
     );
 

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/initContinuityErrs.H

@@ -1 +1 @@
-List<scalar> cumulativeContErr(fluidRegions.size(), 0.0);
+List<scalar> cumulativeContErr(fluidRegions.size(), Zero);

applications/solvers/incompressible/pimpleFoam/overPimpleDyMFoam/interpolatedFaces.H

@@ -11,7 +11,7 @@ labelListList donorCell(mesh.nInternalFaces());
 scalarListList weightCellCells(mesh.nInternalFaces());
 
 // Interpolated HbyA faces
-vectorField UIntFaces(mesh.nInternalFaces(), vector::zero);
+vectorField UIntFaces(mesh.nInternalFaces(), Zero);
 
 // Determine receptor neighbour cells
 labelList receptorNeigCell(mesh.nInternalFaces(), -1);
@@ -23,7 +23,7 @@ labelList receptorNeigCell(mesh.nInternalFaces(), -1);
 
     label nZones = gMax(zoneID)+1;
     PtrList<fvMeshSubset> meshParts(nZones);
-    labelList nCellsPerZone(nZones, 0);
+    labelList nCellsPerZone(nZones, Zero);
 
     // A mesh subset for each zone
     forAll(meshParts, zonei)
@@ -173,7 +173,7 @@ labelList receptorNeigCell(mesh.nInternalFaces(), -1);
 }
 
 // contravariant U
-vectorField U1Contrav(mesh.nInternalFaces(), vector::zero);
+vectorField U1Contrav(mesh.nInternalFaces(), Zero);
 
 surfaceVectorField faceNormals(mesh.Sf()/mesh.magSf());
 
@@ -192,7 +192,8 @@ forAll(isNeiInterpolatedFace, faceI)
     if (cellId != -1)
     {
         const vector& n = faceNormals[faceI];
-        vector n1 = vector::zero;
+        vector n1(Zero);
+
         // 2-D cases
         if (mesh.nSolutionD() == 2)
         {

applications/solvers/multiphase/compressibleInterFoam/compressibleInterFilmFoam/VoFPatchTransfer/VoFPatchTransfer.C

@@ -266,7 +266,7 @@ void VoFPatchTransfer::correct
             getModelProperty<scalarField>
             (
                 "patchTransferredMasses",
-                scalarField(patchTransferredMasses_.size(), 0)
+                scalarField(patchTransferredMasses_.size(), Zero)
             )
         );
 
@@ -302,7 +302,7 @@ void VoFPatchTransfer::patchTransferredMassTotals
         getModelProperty<scalarField>
         (
             "patchTransferredMasses",
-            scalarField(patchTransferredMasses_.size(), 0)
+            scalarField(patchTransferredMasses_.size(), Zero)
         )
     );
 

applications/solvers/multiphase/icoReactingMultiphaseInterFoam/laserDTRM/DTRMParticle/DTRMParticleIO.C

@@ -48,8 +48,8 @@ Foam::DTRMParticle::DTRMParticle
 )
 :
     particle(mesh, is, readFields, newFormat),
-    p0_(point::zero),
+    p0_(Zero),
-    p1_(point::zero),
+    p1_(Zero),
     I0_(0),
     I_(0),
     dA_(0),

applications/solvers/multiphase/icoReactingMultiphaseInterFoam/laserDTRM/reflectionModel/noReflection/noReflection.C

@@ -67,7 +67,7 @@ Foam::vector Foam::radiation::noReflection::R
     const vector& n
 ) const
 {
-    return (vector::zero);
+    return vector::zero;
 }
 
 

applications/solvers/multiphase/interCondensatingEvaporatingFoam/eEqn.H

@@ -4,7 +4,7 @@
 
     kappaEff = thermo->kappa() + rho*cp*turbulence->nut()/Prt;
 
-    pDivU = dimensionedScalar("pDivU", p.dimensions()/dimTime, 0.0);
+    pDivU = dimensionedScalar("pDivU", p.dimensions()/dimTime, Zero);
 
     if (thermo->pDivU())
     {

applications/solvers/multiphase/reactingEulerFoam/reactingTwoPhaseEulerFoam/twoPhaseCompressibleTurbulenceModels/derivedFvPatchFields/fixedMultiPhaseHeatFlux/fixedMultiPhaseHeatFluxFvPatchScalarField.C

@@ -44,7 +44,7 @@ fixedMultiPhaseHeatFluxFvPatchScalarField
 )
 :
     fixedValueFvPatchScalarField(p, iF),
-    q_(p.size(), 0.0),
+    q_(p.size(), Zero),
     relax_(1.0)
 {}
 
@@ -131,9 +131,9 @@ void Foam::fixedMultiPhaseHeatFluxFvPatchScalarField::updateCoeffs()
 
     const scalarField& Tp = *this;
 
-    scalarField A(Tp.size(), scalar(0));
+    scalarField A(Tp.size(), Zero);
-    scalarField B(Tp.size(), scalar(0));
+    scalarField B(Tp.size(), Zero);
-    scalarField Q(Tp.size(), scalar(0));
+    scalarField Q(Tp.size(), Zero);
 
     forAll(fluid.phases(), phasei)
     {

applications/solvers/stressAnalysis/solidDisplacementFoam/tractionDisplacement/tractionDisplacementFvPatchVectorField.C

@@ -43,7 +43,7 @@ tractionDisplacementFvPatchVectorField
 :
     fixedGradientFvPatchVectorField(p, iF),
     traction_(p.size(), Zero),
-    pressure_(p.size(), 0.0)
+    pressure_(p.size(), Zero)
 {
     fvPatchVectorField::operator=(patchInternalField());
     gradient() = Zero;

applications/solvers/stressAnalysis/solidEquilibriumDisplacementFoam/tractionDisplacementCorrection/tractionDisplacementCorrectionFvPatchVectorField.C

@@ -43,7 +43,7 @@ tractionDisplacementCorrectionFvPatchVectorField
 :
     fixedGradientFvPatchVectorField(p, iF),
     traction_(p.size(), Zero),
-    pressure_(p.size(), 0.0)
+    pressure_(p.size(), Zero)
 {
     fvPatchVectorField::operator=(patchInternalField());
     gradient() = Zero;

applications/test/CompactListList/Test-CompactListList.C

@@ -47,7 +47,7 @@ int main(int argc, char *argv[])
         Info<< "cll1:" << cll1 << endl;
 
         // Resize and assign row by row
-        labelList row0(2, label(0));
+        labelList row0(2, Zero);
         labelList row1(3, label(1));
 
         labelList rowSizes(2);

applications/test/PatchFunction1/Test-PatchFunction1.C

@@ -94,7 +94,7 @@ int main(int argc, char *argv[])
             false
         ),
         mesh,
-        dimensionedVector(vector::zero)
+        dimensionedVector(Zero)
     );
 
     fld.boundaryFieldRef()[0] == function1().value(x0);

applications/test/parallel/Test-parallel.C

@@ -61,7 +61,7 @@ void testMapDistribute()
     // Send all ones to processor indicated by .first()
 
     // Count how many to send
-    labelList nSend(Pstream::nProcs(), 0);
+    labelList nSend(Pstream::nProcs(), Zero);
     forAll(complexData, i)
     {
         label procI = complexData[i].first();

applications/test/syncTools/Test-syncTools.C

@@ -404,7 +404,7 @@ void testPointSync(const polyMesh& mesh, Random& rndGen)
     // Test masterPoints
 
     {
-        labelList nMasters(mesh.nPoints(), 0);
+        labelList nMasters(mesh.nPoints(), Zero);
 
         bitSet isMasterPoint(syncTools::getMasterPoints(mesh));
 
@@ -480,7 +480,7 @@ void testEdgeSync(const polyMesh& mesh, Random& rndGen)
     // Test masterEdges
 
     {
-        labelList nMasters(edges.size(), 0);
+        labelList nMasters(edges.size(), Zero);
 
         bitSet isMasterEdge(syncTools::getMasterEdges(mesh));
 
@@ -549,7 +549,7 @@ void testFaceSync(const polyMesh& mesh, Random& rndGen)
     // Test masterFaces
 
     {
-        labelList nMasters(mesh.nFaces(), 0);
+        labelList nMasters(mesh.nFaces(), Zero);
 
         bitSet isMasterFace(syncTools::getMasterFaces(mesh));
 

applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C

@@ -606,7 +606,7 @@ int main(int argc, char *argv[])
 
         List<pointEdgeCollapse> allPointInfo;
         const globalIndex globalPoints(mesh.nPoints());
-        labelList pointPriority(mesh.nPoints(), 0);
+        labelList pointPriority(mesh.nPoints(), Zero);
 
         cutter.consistentCollapse
         (

applications/utilities/mesh/advanced/refinementLevel/refinementLevel.C

@@ -263,7 +263,7 @@ int main(int argc, char *argv[])
             IOobject::NO_READ,
             IOobject::AUTO_WRITE
         ),
-        labelList(mesh.nCells(), 0)
+        labelList(mesh.nCells(), Zero)
     );
 
     if (readLevel)

applications/utilities/mesh/advanced/snappyRefineMesh/snappyRefineMesh.C

@@ -752,7 +752,7 @@ int main(int argc, char *argv[])
             IOobject::READ_IF_PRESENT,
             IOobject::AUTO_WRITE
         ),
-        labelList(mesh.nCells(), 0)
+        labelList(mesh.nCells(), Zero)
     );
 
     label maxLevel = max(refLevel);

applications/utilities/mesh/conversion/ansysToFoam/ansysToFoam.L

@@ -542,7 +542,7 @@ int main(int argc, char *argv[])
     // Now split the boundary faces into external and internal faces. All
     // faces go into faceZones and external faces go into patches.
     List<faceList> patchFaces(slPatchCells.size());
-    labelList patchNFaces(slPatchCells.size(), 0);
+    labelList patchNFaces(slPatchCells.size(), Zero);
     forAll(boundary, patchi)
     {
         const faceList& bFaces = boundary[patchi];

applications/utilities/mesh/conversion/fluentMeshToFoam/fluentMeshToFoam.L

@@ -936,7 +936,7 @@ int main(int argc, char *argv[])
 
     labelListList cellFaces(nCells);
 
-    labelList nFacesInCell(nCells, 0);
+    labelList nFacesInCell(nCells, Zero);
 
     forAll(cellFaces, celli)
     {

applications/utilities/mesh/generation/extrude/extrudeMesh/extrudeMesh.C

@@ -911,7 +911,7 @@ int main(int argc, char *argv[])
 
         List<pointEdgeCollapse> allPointInfo;
         const globalIndex globalPoints(mesh.nPoints());
-        labelList pointPriority(mesh.nPoints(), 0);
+        labelList pointPriority(mesh.nPoints(), Zero);
 
         collapser.consistentCollapse
         (

applications/utilities/mesh/generation/extrude/extrudeMesh/extrudedMesh/extrudedMeshTemplates.C

@@ -219,7 +219,7 @@ Foam::cellList Foam::extrudedMesh::extrudedCells
     }
 
     // Current face count per cell.
-    labelList nCellFaces(eCells.size(), 0);
+    labelList nCellFaces(eCells.size(), Zero);
 
 
     label facei = 0;

applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/extrudeToRegionMesh.C

@@ -2053,11 +2053,11 @@ int main(int argc, char *argv[])
     // Count how many patches on special edges of extrudePatch are necessary
     // - zoneXXX_sides
     // - zoneXXX_zoneYYY
-    labelList zoneSidePatch(zoneNames.size(), 0);
+    labelList zoneSidePatch(zoneNames.size(), Zero);
     // Patch to use for minZone
-    labelList zoneZonePatch_min(zoneNames.size()*zoneNames.size(), 0);
+    labelList zoneZonePatch_min(zoneNames.size()*zoneNames.size(), Zero);
     // Patch to use for maxZone
-    labelList zoneZonePatch_max(zoneNames.size()*zoneNames.size(), 0);
+    labelList zoneZonePatch_max(zoneNames.size()*zoneNames.size(), Zero);
 
     countExtrudePatches
     (

applications/utilities/mesh/generation/extrude2DMesh/extrude2DMeshApp.C

@@ -285,7 +285,7 @@ int main(int argc, char *argv[])
 
         List<pointEdgeCollapse> allPointInfo;
         const globalIndex globalPoints(mesh().nPoints());
-        labelList pointPriority(mesh().nPoints(), 0);
+        labelList pointPriority(mesh().nPoints(), Zero);
 
         collapser.consistentCollapse
         (

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/DelaunayMesh/DistributedDelaunayMesh.C

@@ -44,7 +44,7 @@ Foam::DistributedDelaunayMesh<Triangulation>::buildMap
     // ~~~~~~~~~~~~~~~~~~
 
     // 1. Count
-    labelList nSend(Pstream::nProcs(), 0);
+    labelList nSend(Pstream::nProcs(), Zero);
 
     forAll(toProc, i)
     {

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/PrintTable/PrintTable.C

@@ -77,7 +77,7 @@ void Foam::PrintTable<KeyType, DataType>::print
         label largestKeyLength = 6;
         label largestDataLength = 0;
 
-        List<label> largestProcSize(Pstream::nProcs(), 0);
+        labelList largestProcSize(Pstream::nProcs(), Zero);
 
         forAll(procData, proci)
         {

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecomposition.C

@@ -51,7 +51,7 @@ Foam::autoPtr<Foam::mapDistribute> Foam::backgroundMeshDecomposition::buildMap
     // ~~~~~~~~~~~~~~~~~~
 
     // 1. Count
-    labelList nSend(Pstream::nProcs(), 0);
+    labelList nSend(Pstream::nProcs(), Zero);
 
     forAll(toProc, i)
     {
@@ -337,7 +337,7 @@ void Foam::backgroundMeshDecomposition::initialRefinement()
                 (
                     cellsToRemove,
                     exposedFaces,
-                    labelList(exposedFaces.size(), 0),  // patchID dummy
+                    labelList(exposedFaces.size(), Zero),  // patchID dummy
                     meshMod
                 );
 
@@ -793,8 +793,8 @@ Foam::backgroundMeshDecomposition::backgroundMeshDecomposition
     meshCutter_
     (
         mesh_,
-        labelList(mesh_.nCells(), 0),
+        labelList(mesh_.nCells(), Zero),
-        labelList(mesh_.nPoints(), 0)
+        labelList(mesh_.nPoints(), Zero)
     ),
     boundaryFacesPtr_(),
     bFTreePtr_(),

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshCalcDualMesh.C

@@ -1063,7 +1063,7 @@ Foam::labelHashSet Foam::conformalVoronoiMesh::checkPolyMeshQuality
 
         // Check for cells with one internal face only
 
-        labelList nInternalFaces(pMesh.nCells(), label(0));
+        labelList nInternalFaces(pMesh.nCells(), Zero);
 
         for (label fI = 0; fI < pMesh.nInternalFaces(); fI++)
         {

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshFeaturePoints.C

@@ -902,7 +902,7 @@ void Foam::conformalVoronoiMesh::createMultipleEdgePointGroup
     const List<extendedFeatureEdgeMesh::sideVolumeType>& normalVolumeTypes =
         feMesh.normalVolumeTypes();
 
-    labelList nNormalTypes(4, label(0));
+    labelList nNormalTypes(4, Zero);
 
     forAll(edNormalIs, edgeNormalI)
     {

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshIO.C

@@ -210,7 +210,7 @@ void Foam::conformalVoronoiMesh::writeMesh(const fileName& instance)
 //
 //        // From all Delaunay vertices to cell (positive index)
 //        // or patch face (negative index)
-//        labelList vertexToDualAddressing(number_of_vertices(), 0);
+//        labelList vertexToDualAddressing(number_of_vertices(), Zero);
 //
 //        forAll(cellToDelaunayVertex, celli)
 //        {
@@ -525,7 +525,7 @@ void Foam::conformalVoronoiMesh::reorderPoints
     Info<< incrIndent << indent << "Reordering points into internal/external"
         << endl;
 
-    labelList oldToNew(points.size(), label(0));
+    labelList oldToNew(points.size(), Zero);
 
     // Find points that are internal
     for (label fI = nInternalFaces; fI < faces.size(); ++fI)
@@ -611,7 +611,7 @@ void Foam::conformalVoronoiMesh::reorderProcessorPatches
     const fvMesh& sortMesh = sortMeshPtr();
 
     // Rotation on new faces.
-    labelList rotation(faces.size(), label(0));
+    labelList rotation(faces.size(), Zero);
     labelList faceMap(faces.size(), label(-1));
 
     PstreamBuffers pBufs(Pstream::commsTypes::nonBlocking);
@@ -660,7 +660,7 @@ void Foam::conformalVoronoiMesh::reorderProcessorPatches
                 patchDicts[patchi].get<label>("startFace");
 
             labelList patchFaceMap(nPatchFaces, label(-1));
-            labelList patchFaceRotation(nPatchFaces, label(0));
+            labelList patchFaceRotation(nPatchFaces, Zero);
 
             bool changed = refCast<const processorPolyPatch>(pp).order
             (

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshTemplates.C

@@ -83,7 +83,7 @@ bool Foam::conformalVoronoiMesh::distributeBackground(const Triangulation& mesh)
 
         meshSearch cellSearch(bMesh, polyMesh::FACE_PLANES);
 
-        labelList cellVertices(bMesh.nCells(), label(0));
+        labelList cellVertices(bMesh.nCells(), Zero);
 
         for
         (

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformationSurfaces/conformationSurfaces.C

@@ -613,7 +613,7 @@ Foam::Field<bool> Foam::conformationSurfaces::inside
     const pointField& samplePts
 ) const
 {
-    return wellInside(samplePts, scalarField(samplePts.size(), 0.0));
+    return wellInside(samplePts, scalarField(samplePts.size(), Zero));
 }
 
 
@@ -622,7 +622,7 @@ bool Foam::conformationSurfaces::inside
     const point& samplePt
 ) const
 {
-    return wellInside(pointField(1, samplePt), scalarField(1, 0))[0];
+    return wellInside(pointField(1, samplePt), scalarField(1, Zero))[0];
 }
 
 
@@ -631,7 +631,7 @@ Foam::Field<bool> Foam::conformationSurfaces::outside
     const pointField& samplePts
 ) const
 {
-    return wellOutside(samplePts, scalarField(samplePts.size(), 0.0));
+    return wellOutside(samplePts, scalarField(samplePts.size(), Zero));
 }
 
 
@@ -640,7 +640,7 @@ bool Foam::conformationSurfaces::outside
     const point& samplePt
 ) const
 {
-    return wellOutside(pointField(1, samplePt), scalarField(1, 0))[0];
+    return wellOutside(pointField(1, samplePt), scalarField(1, Zero))[0];
     //return !inside(samplePt);
 }
 

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/initialPointsMethod/autoDensity/autoDensity.C

@@ -416,7 +416,7 @@ bool Foam::autoDensity::fillBox
 
             pointField linePoints(nLine, Zero);
 
-            scalarField lineSizes(nLine, 0.0);
+            scalarField lineSizes(nLine, Zero);
 
             for (label i = 0; i < surfRes_; i++)
             {

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/searchableSurfaceFeatures/searchableBoxFeatures.C

@@ -113,7 +113,7 @@ Foam::searchableBoxFeatures::features() const
             surfacePoints[treeBoundBox::edges[eI].end()]
           - surfacePoints[treeBoundBox::edges[eI].start()];
 
-        normalDirections[eI] = labelList(2, label(0));
+        normalDirections[eI] = labelList(2, Zero);
         for (label j = 0; j < 2; ++j)
         {
             const vector cross =

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/searchableSurfaceFeatures/searchablePlateFeatures.C

@@ -131,7 +131,7 @@ Foam::searchablePlateFeatures::features() const
             surface().points()()[edges[eI].end()]
           - surface().points()()[edges[eI].start()];
 
-        normalDirections[eI] = labelList(2, label(0));
+        normalDirections[eI] = labelList(2, Zero);
         for (label j = 0; j < 2; ++j)
         {
             const vector cross =

applications/utilities/mesh/generation/snappyHexMesh/snappyHexMesh.C

@@ -108,9 +108,9 @@ autoPtr<refinementSurfaces> createRefinementSurfaces
 
     labelList regionOffset(surfi);
 
-    labelList globalMinLevel(surfi, 0);
+    labelList globalMinLevel(surfi, Zero);
-    labelList globalMaxLevel(surfi, 0);
+    labelList globalMaxLevel(surfi, Zero);
-    labelList globalLevelIncr(surfi, 0);
+    labelList globalLevelIncr(surfi, Zero);
     PtrList<dictionary> globalPatchInfo(surfi);
     List<Map<label>> regionMinLevel(surfi);
     List<Map<label>> regionMaxLevel(surfi);
@@ -263,8 +263,8 @@ autoPtr<refinementSurfaces> createRefinementSurfaces
     }
 
     // Rework surface specific information into information per global region
-    labelList minLevel(nRegions, 0);
+    labelList minLevel(nRegions, Zero);
-    labelList maxLevel(nRegions, 0);
+    labelList maxLevel(nRegions, Zero);
     labelList gapLevel(nRegions, -1);
     PtrList<dictionary> patchInfo(nRegions);
 

applications/utilities/mesh/manipulation/checkMesh/checkTopology.C

@@ -319,7 +319,7 @@ Foam::label Foam::checkTopology
 
     if (allTopology)
     {
-        labelList nInternalFaces(mesh.nCells(), 0);
+        labelList nInternalFaces(mesh.nCells(), Zero);
 
         for (label facei = 0; facei < mesh.nInternalFaces(); facei++)
         {

applications/utilities/mesh/manipulation/createBaffles/createBaffles.C

@@ -577,7 +577,7 @@ int main(int argc, char *argv[])
     }
 
     // Add faces to faceZones
-    labelList nFaces(mesh.faceZones().size(), 0);
+    labelList nFaces(mesh.faceZones().size(), Zero);
     forAll(faceToZoneID, facei)
     {
         label zoneID = faceToZoneID[facei];

applications/utilities/mesh/manipulation/mergeOrSplitBaffles/mergeOrSplitBaffles.C

@@ -550,7 +550,7 @@ int main(int argc, char *argv[])
         // Dump duplicated points (if any)
         const labelList& pointMap = map().pointMap();
 
-        labelList nDupPerPoint(map().nOldPoints(), 0);
+        labelList nDupPerPoint(map().nOldPoints(), Zero);
 
         pointSet dupPoints(mesh, "duplicatedPoints", 100);
 

applications/utilities/mesh/manipulation/mirrorMesh/mirrorFvMesh.C

@@ -271,7 +271,7 @@ Foam::mirrorFvMesh::mirrorFvMesh
     }
 
     // Mirror boundary faces patch by patch
-    labelList newPatchSizes(boundary().size(), 0);
+    labelList newPatchSizes(boundary().size(), Zero);
     labelList newPatchStarts(boundary().size(), -1);
 
     forAll(boundaryMesh(), patchi)

applications/utilities/mesh/manipulation/orientFaceZone/orientFaceZone.C

@@ -130,7 +130,7 @@ int main(int argc, char *argv[])
     }
     {
         // Number of (master)faces per edge
-        labelList nMasterFaces(patch.nEdges(), 0);
+        labelList nMasterFaces(patch.nEdges(), Zero);
 
         forAll(faceLabels, facei)
         {

applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C

@@ -130,8 +130,8 @@ void getBand
     scalar& sumSqrIntersect     // scalar to avoid overflow
 )
 {
-    labelList cellBandwidth(nCells, 0);
+    labelList cellBandwidth(nCells, Zero);
-    scalarField nIntersect(nCells, 0.0);
+    scalarField nIntersect(nCells, Zero);
 
     forAll(neighbour, facei)
     {

applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C

@@ -1149,7 +1149,7 @@ label findCorrespondingRegion
 )
 {
     // Per region the number of cells in zoneI
-    labelList cellsInZone(nCellRegions, 0);
+    labelList cellsInZone(nCellRegions, Zero);
 
     forAll(cellRegion, celli)
     {
@@ -1267,7 +1267,7 @@ void matchRegions
     getZoneID(mesh, cellZones, zoneID, neiZoneID);
 
     // Sizes per cellzone
-    labelList zoneSizes(cellZones.size(), 0);
+    labelList zoneSizes(cellZones.size(), Zero);
     {
         List<wordList> zoneNames(Pstream::nProcs());
         zoneNames[Pstream::myProcNo()] = cellZones.names();
@@ -1753,7 +1753,7 @@ int main(int argc, char *argv[])
     // Sizes per region
     // ~~~~~~~~~~~~~~~~
 
-    labelList regionSizes(nCellRegions, 0);
+    labelList regionSizes(nCellRegions, Zero);
 
     forAll(cellRegion, celli)
     {

applications/utilities/parallelProcessing/decomposePar/domainDecompositionMesh.C

@@ -244,7 +244,7 @@ void Foam::domainDecomposition::decomposeMesh()
         label nInterfaces = interPatchFaces[proci].size();
 
         subPatchIDs[proci].setSize(nInterfaces, labelList(1, label(-1)));
-        subPatchStarts[proci].setSize(nInterfaces, labelList(1, label(0)));
+        subPatchStarts[proci].setSize(nInterfaces, labelList(1, Zero));
     }
 
 

applications/utilities/parallelProcessing/decomposePar/domainDecompositionTemplates.C

@@ -115,7 +115,7 @@ void Foam::domainDecomposition::processInterCyclics
             {
                 label nIntfcs = interPatchFaces[proci].size();
                 subPatchIDs[proci].setSize(nIntfcs, labelList(1, patchi));
-                subPatchStarts[proci].setSize(nIntfcs, labelList(1, label(0)));
+                subPatchStarts[proci].setSize(nIntfcs, labelList(1, Zero));
             }
         }
     }

applications/utilities/parallelProcessing/decomposePar/faMeshDecomposition.C

@@ -180,7 +180,7 @@ Foam::faMeshDecomposition::faMeshDecomposition
     faceToProc_(nFaces()),
     procFaceLabels_(nProcs_),
     procMeshEdgesMap_(nProcs_),
-    procNInternalEdges_(nProcs_, 0),
+    procNInternalEdges_(nProcs_, Zero),
     procPatchEdgeLabels_(nProcs_),
     procPatchPointAddressing_(nProcs_),
     procPatchEdgeAddressing_(nProcs_),
@@ -991,7 +991,7 @@ void Foam::faMeshDecomposition::decomposeMesh()
 
     // Memory management
     {
-        labelList pointsUsage(nPoints(), 0);
+        labelList pointsUsage(nPoints(), Zero);
 
         // Globally shared points are the ones used by more than 2 processors
         // Size the list approximately and gather the points

applications/utilities/parallelProcessing/redistributePar/redistributePar.C

@@ -2671,7 +2671,7 @@ int main(int argc, char *argv[])
                         << endl;
 
                     label nDestProcs = 1;
-                    labelList finalDecomp = labelList(mesh.nCells(), 0);
+                    labelList finalDecomp = labelList(mesh.nCells(), Zero);
 
                     redistributeAndWrite
                     (

applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.C

@@ -819,7 +819,7 @@ void Foam::vtkPVFoam::renderPatchNames
         // Find the total number of zones
         // Each zone will take the patch name
         // Number of zones per patch ... zero zones should be skipped
-        labelList nZones(pbMesh.size(), 0);
+        labelList nZones(pbMesh.size(), Zero);
 
         // Per global zone number the average face centre position
         List<DynamicList<point>> zoneCentre(pbMesh.size());
@@ -862,7 +862,7 @@ void Foam::vtkPVFoam::renderPatchNames
 
             nZones[patchi] = pZones.nZones();
 
-            labelList zoneNFaces(pZones.nZones(), 0);
+            labelList zoneNFaces(pZones.nZones(), Zero);
 
             // Create storage for additional zone centres
             forAll(zoneNFaces, zonei)

applications/utilities/postProcessing/lagrangian/particleTracks/particleTracks.C

@@ -121,7 +121,7 @@ int main(int argc, char *argv[])
 
 
     // Calculate starting ids for particles on each processor
-    List<label> startIds(numIds.size(), 0);
+    labelList startIds(numIds.size(), Zero);
     for (label i = 0; i < numIds.size()-1; i++)
     {
         startIds[i+1] += startIds[i] + numIds[i];

applications/utilities/postProcessing/lagrangian/steadyParticleTracks/steadyParticleTracks.C

@@ -204,7 +204,7 @@ int main(int argc, char *argv[])
             Info<< "\n    Generating " << nTracks << " tracks" << endl;
 
             // Determine length of each track
-            labelList trackLengths(nTracks, 0);
+            labelList trackLengths(nTracks, Zero);
             forAll(particleToTrack, i)
             {
                 const label trackI = particleToTrack[i];
@@ -237,7 +237,7 @@ int main(int argc, char *argv[])
 
                 const scalarField& age = tage();
 
-                List<label> trackSamples(nTracks, 0);
+                labelList trackSamples(nTracks, Zero);
 
                 forAll(particleToTrack, i)
                 {

applications/utilities/postProcessing/miscellaneous/pdfPlot/createFields.H

@@ -44,4 +44,4 @@
         filePtr.reset(new OFstream(fName));
     }
 
-    scalarField samples(nIntervals, 0);
+    scalarField samples(nIntervals, Zero);

applications/utilities/preProcessing/viewFactorsGen/viewFactorsGen.C

@@ -485,7 +485,7 @@ int main(int argc, char *argv[])
     #include "shootRays.H"
 
     // Calculate number of visible faces from local index
-    labelList nVisibleFaceFaces(nCoarseFaces, 0);
+    labelList nVisibleFaceFaces(nCoarseFaces, Zero);
 
     forAll(rayStartFace, i)
     {
@@ -628,7 +628,7 @@ int main(int argc, char *argv[])
         0.0
     );
 
-    scalarList patchArea(totalPatches, 0.0);
+    scalarList patchArea(totalPatches, Zero);
 
     if (Pstream::master())
     {

applications/utilities/preProcessing/wallFunctionTable/tabulatedWallFunction/general/general.C

@@ -57,7 +57,7 @@ Foam::tabulatedWallFunctions::general::interpolationTypeNames_
 
 void Foam::tabulatedWallFunctions::general::invertTable()
 {
-    scalarList Rey(uPlus_.size(), 0.0);
+    scalarList Rey(uPlus_.size(), Zero);
 
     // Calculate Reynolds number
     forAll(uPlus_, i)

applications/utilities/surface/surfaceBooleanFeatures/surfaceBooleanFeatures.C

@@ -1242,7 +1242,7 @@ autoPtr<extendedFeatureEdgeMesh> createEdgeMesh
     label nFeatEds = inter.cutEdges().size();
 
     DynamicList<vector> normals(2*nFeatEds);
-    vectorField edgeDirections(nFeatEds, vector::zero);
+    vectorField edgeDirections(nFeatEds, Zero);
     DynamicList<extendedFeatureEdgeMesh::sideVolumeType> normalVolumeTypes
     (
         2*nFeatEds

applications/utilities/surface/surfaceCheck/surfaceCheck.C

@@ -80,7 +80,7 @@ labelList countBins
 {
     scalar dist = nBins/(max - min);
 
-    labelList binCount(nBins, 0);
+    labelList binCount(nBins, Zero);
 
     forAll(vals, i)
     {
@@ -444,7 +444,7 @@ int main(int argc, char *argv[])
     // ~~~~~~~~~~~~
 
     {
-        labelList regionSize(surf.patches().size(), 0);
+        labelList regionSize(surf.patches().size(), Zero);
 
         forAll(surf, facei)
         {
@@ -541,7 +541,7 @@ int main(int argc, char *argv[])
                         faces
                     ),
                     "illegal",
-                    scalarField(subSurf.size(), 0.0),
+                    scalarField(subSurf.size(), Zero),
                     false               // face based data
                 );
             }
@@ -580,7 +580,7 @@ int main(int argc, char *argv[])
     // ~~~~~~~~~~~~~~~~
 
     {
-        scalarField triQ(surf.size(), 0);
+        scalarField triQ(surf.size(), Zero);
         forAll(surf, facei)
         {
             const labelledTri& f = surf[facei];

applications/utilities/surface/surfaceInflate/surfaceInflate.C

@@ -141,7 +141,7 @@ tmp<vectorField> calcPointNormals
     {
         const labelListList& edgeFaces = s.edgeFaces();
 
-        labelList nNormals(s.nPoints(), 0);
+        labelList nNormals(s.nPoints(), Zero);
         forAll(edgeStat, edgeI)
         {
             if (edgeStat[edgeI] != surfaceFeatures::NONE)
@@ -355,10 +355,10 @@ tmp<scalarField> avg
     const scalarField& edgeWeights
 )
 {
-    tmp<scalarField> tres(new scalarField(s.nPoints(), 0.0));
+    tmp<scalarField> tres(new scalarField(s.nPoints(), Zero));
     scalarField& res = tres.ref();
 
-    scalarField sumWeight(s.nPoints(), 0.0);
+    scalarField sumWeight(s.nPoints(), Zero);
 
     const edgeList& edges = s.edges();
 
@@ -499,7 +499,7 @@ void lloydsSmoothing
         const pointField& points = s.points();
 
         vectorField pointSum(s.nPoints(), Zero);
-        labelList nPointSum(s.nPoints(), 0);
+        labelList nPointSum(s.nPoints(), Zero);
 
         forAll(edges, edgeI)
         {

src/ODE/ODESolvers/SIBS/SIBS.C

@@ -49,18 +49,18 @@ namespace Foam
 Foam::SIBS::SIBS(const ODESystem& ode, const dictionary& dict)
 :
     ODESolver(ode, dict),
-    a_(iMaxX_, 0.0),
+    a_(iMaxX_, Zero),
-    alpha_(kMaxX_, 0.0),
+    alpha_(kMaxX_, Zero),
-    d_p_(n_, kMaxX_, 0.0),
+    d_p_(n_, kMaxX_, Zero),
-    x_p_(kMaxX_, 0.0),
+    x_p_(kMaxX_, Zero),
-    err_(kMaxX_, 0.0),
+    err_(kMaxX_, Zero),
 
-    yTemp_(n_, 0.0),
+    yTemp_(n_, Zero),
-    ySeq_(n_, 0.0),
+    ySeq_(n_, Zero),
-    yErr_(n_, 0.0),
+    yErr_(n_, Zero),
     dydx0_(n_),
-    dfdx_(n_, 0.0),
+    dfdx_(n_, Zero),
-    dfdy_(n_, 0.0),
+    dfdy_(n_, Zero),
     first_(1),
     epsOld_(-1.0)
 {}

src/OpenFOAM/containers/Lists/Distribution/Distribution.C

@@ -119,7 +119,7 @@ Foam::label Foam::Distribution<Type>::index
         // Underflow of this List, storage increase and remapping
         // required
 
-        List<scalar> newCmptDistribution(2*cmptDistribution.size(), 0.0);
+        List<scalar> newCmptDistribution(2*cmptDistribution.size(), Zero);
 
         label sOld = cmptDistribution.size();
 

src/OpenFOAM/containers/Lists/ListOps/ListOps.C

@@ -70,7 +70,7 @@ Foam::labelListList Foam::invertOneToMany
     const labelUList& map
 )
 {
-    labelList sizes(len, 0);
+    labelList sizes(len, Zero);
 
     for (const label newIdx : map)
     {

src/OpenFOAM/containers/Lists/ListOps/ListOpsTemplates.C

@@ -695,7 +695,7 @@ void Foam::invertManyToMany
 )
 {
     // The output list sizes
-    labelList sizes(len, 0);
+    labelList sizes(len, Zero);
 
     for (const InputIntListType& sublist : input)
     {

src/OpenFOAM/containers/Lists/SortableList/SortableList.C

@@ -42,6 +42,13 @@ inline Foam::SortableList<T>::SortableList(const label size)
 {}
 
 
+template<class T>
+inline Foam::SortableList<T>::SortableList(const label size, const zero)
+:
+    List<T>(size, zero())
+{}
+
+
 template<class T>
 inline Foam::SortableList<T>::SortableList(const label size, const T& val)
 :

src/OpenFOAM/containers/Lists/SortableList/SortableList.H

@@ -71,7 +71,11 @@ public:
         //  The indices remain empty until the list is sorted
         inline explicit SortableList(const label size);
 
-        //- Construct given size and initial value. Sort later on
+        //- Construct zero-initialized with given size, sort later.
+        //  The indices remain empty until the list is sorted
+        inline SortableList(const label size, const zero);
+
+        //- Construct given size and initial value, sorting later.
         //  The indices remain empty until the list is sorted
         inline SortableList(const label size, const T& val);
 

src/OpenFOAM/db/IOobjects/decomposedBlockData/decomposedBlockData.C

@@ -796,7 +796,7 @@ Foam::label Foam::decomposedBlockData::calcNumProcs
     (
         reinterpret_cast<const char*>(&nSendProcs),
         List<int>(nProcs, sizeof(nSendProcs)),
-        List<int>(nProcs, 0),
+        List<int>(nProcs, Zero),
         reinterpret_cast<char*>(&n),
         sizeof(n),
         comm

src/OpenFOAM/db/IOstreams/Pstreams/UPstream.C

@@ -58,7 +58,7 @@ void Foam::UPstream::setParRun(const label nProcs, const bool haveThreads)
         haveThreads_ = haveThreads;
 
         freeCommunicator(UPstream::worldComm);
-        label comm = allocateCommunicator(-1, labelList(1, label(0)), false);
+        label comm = allocateCommunicator(-1, labelList(1, Zero), false);
         if (comm != UPstream::worldComm)
         {
             FatalErrorInFunction
@@ -382,7 +382,7 @@ Foam::UPstream::treeCommunication_(10);
 Foam::UPstream::communicator serialComm
 (
     -1,
-    Foam::labelList(1, Foam::label(0)),
+    Foam::labelList(1, Foam::Zero),
     false
 );
 

src/OpenFOAM/db/IOstreams/Pstreams/exchange.C

@@ -275,9 +275,9 @@ void Foam::Pstream::exchange
             List<char*> charRecvBufs(sendBufs.size());
 
             labelList nRecv(sendBufs.size());
-            labelList startRecv(sendBufs.size(), 0);
+            labelList startRecv(sendBufs.size(), Zero);
             labelList nSend(sendBufs.size());
-            labelList startSend(sendBufs.size(), 0);
+            labelList startSend(sendBufs.size(), Zero);
 
             for (label iter = 0; iter < nIter; iter++)
             {

src/OpenFOAM/fields/GeometricFields/geometricZeroField/geometricZeroField.H

@@ -25,7 +25,7 @@ Class
     Foam::geometricZeroField
 
 Description
-    A class representing the concept of a GeometricField of 1 used to avoid
+    A class representing the concept of a GeometricField of 0 used to avoid
     unnecessary manipulations for objects which are known to be zero at
     compile-time.
 
@@ -57,6 +57,14 @@ class geometricZeroField
 
 public:
 
+    // Public typedefs
+
+        typedef zeroField Internal;
+        typedef zeroField Patch;
+        typedef zeroFieldField Boundary;
+        typedef zero cmptType;
+
+
     // Constructors
 
         //- Construct null

src/OpenFOAM/graph/curve/curve.C

@@ -35,7 +35,7 @@ Foam::curve::curve
     const label l
 )
 :
-    scalarField(l, 0.0),
+    scalarField(l, Zero),
     name_(name),
     style_(style)
 {}

src/OpenFOAM/interpolations/uniformInterpolationTable/uniformInterpolationTable.C

@@ -54,7 +54,7 @@ Foam::uniformInterpolationTable<Type>::uniformInterpolationTable
 )
 :
     IOobject(io),
-    List<scalar>(2, 0.0),
+    List<scalar>(2, Zero),
     x0_(0.0),
     dx_(1.0),
     log10_(false),
@@ -93,7 +93,7 @@ Foam::uniformInterpolationTable<Type>::uniformInterpolationTable
         IOobject::NO_WRITE,
         false // if used in BCs, could be used by multiple patches
     ),
-    List<scalar>(2, 0.0),
+    List<scalar>(2, Zero),
     x0_(dict.get<scalar>("x0")),
     dx_(dict.get<scalar>("dx")),
     log10_(dict.lookupOrDefault<Switch>("log10", false)),

src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduAddressing.C

@@ -41,7 +41,7 @@ void Foam::lduAddressing::calcLosort() const
     // Scan the neighbour list to find out how many times the cell
     // appears as a neighbour of the face. Done this way to avoid guessing
     // and resizing list
-    labelList nNbrOfFace(size(), 0);
+    labelList nNbrOfFace(size(), Zero);
 
     const labelUList& nbr = upperAddr();
 
@@ -136,7 +136,7 @@ void Foam::lduAddressing::calcLosortStart() const
             << abort(FatalError);
     }
 
-    losortStartPtr_ = new labelList(size() + 1, 0);
+    losortStartPtr_ = new labelList(size() + 1, Zero);
 
     labelList& lsrtStart = *losortStartPtr_;
 
@@ -259,7 +259,7 @@ Foam::Tuple2<Foam::label, Foam::scalar> Foam::lduAddressing::band() const
     const labelUList& owner = lowerAddr();
     const labelUList& neighbour = upperAddr();
 
-    labelList cellBandwidth(size(), 0);
+    labelList cellBandwidth(size(), Zero);
 
     forAll(neighbour, facei)
     {

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrix.C

@@ -178,7 +178,7 @@ Foam::scalarField& Foam::lduMatrix::lower()
         }
         else
         {
-            lowerPtr_ = new scalarField(lduAddr().lowerAddr().size(), 0.0);
+            lowerPtr_ = new scalarField(lduAddr().lowerAddr().size(), Zero);
         }
     }
 
@@ -190,7 +190,7 @@ Foam::scalarField& Foam::lduMatrix::diag()
 {
     if (!diagPtr_)
     {
-        diagPtr_ = new scalarField(lduAddr().size(), 0.0);
+        diagPtr_ = new scalarField(lduAddr().size(), Zero);
     }
 
     return *diagPtr_;
@@ -207,7 +207,7 @@ Foam::scalarField& Foam::lduMatrix::upper()
         }
         else
         {
-            upperPtr_ = new scalarField(lduAddr().lowerAddr().size(), 0.0);
+            upperPtr_ = new scalarField(lduAddr().lowerAddr().size(), Zero);
         }
     }
 
@@ -225,7 +225,7 @@ Foam::scalarField& Foam::lduMatrix::lower(const label nCoeffs)
         }
         else
         {
-            lowerPtr_ = new scalarField(nCoeffs, 0.0);
+            lowerPtr_ = new scalarField(nCoeffs, Zero);
         }
     }
 
@@ -237,7 +237,7 @@ Foam::scalarField& Foam::lduMatrix::diag(const label size)
 {
     if (!diagPtr_)
     {
-        diagPtr_ = new scalarField(size, 0.0);
+        diagPtr_ = new scalarField(size, Zero);
     }
 
     return *diagPtr_;
@@ -254,7 +254,7 @@ Foam::scalarField& Foam::lduMatrix::upper(const label nCoeffs)
         }
         else
         {
-            upperPtr_ = new scalarField(nCoeffs, 0.0);
+            upperPtr_ = new scalarField(nCoeffs, Zero);
         }
     }
 

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrixATmul.C

@@ -295,7 +295,7 @@ Foam::tmp<Foam::scalarField > Foam::lduMatrix::H1() const
 {
     tmp<scalarField > tH1
     (
-        new scalarField(lduAddr().size(), 0.0)
+        new scalarField(lduAddr().size(), Zero)
     );
 
     if (lowerPtr_ || upperPtr_)

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGAgglomerations/GAMGAgglomeration/GAMGAgglomerateLduAddressing.C

@@ -70,7 +70,7 @@ void Foam::GAMGAgglomeration::agglomerateLduAddressing
     label maxNnbrs = 10;
 
     // Number of faces for each coarse-cell
-    labelList cCellnFaces(nCoarseCells, 0);
+    labelList cCellnFaces(nCoarseCells, Zero);
 
     // Setup initial packed storage for coarse-cell faces
     labelList cCellFaces(maxNnbrs*nCoarseCells);
@@ -260,7 +260,11 @@ void Foam::GAMGAgglomeration::agglomerateLduAddressing
     // Get reference to fine-level interfaces
     const lduInterfacePtrsList& fineInterfaces = interfaceLevel(fineLevelIndex);
 
-    nPatchFaces_.set(fineLevelIndex, new labelList(fineInterfaces.size(), 0));
+    nPatchFaces_.set
+    (
+        fineLevelIndex,
+        new labelList(fineInterfaces.size(), Zero)
+    );
     labelList& nPatchFaces = nPatchFaces_[fineLevelIndex];
 
     patchFaceRestrictAddressing_.set

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGAgglomerations/pairGAMGAgglomeration/pairGAMGAgglomerate.C

@@ -135,7 +135,7 @@ Foam::tmp<Foam::labelField> Foam::pairGAMGAgglomeration::agglomerate
 
     // memory management
     {
-        labelList nNbrs(nFineCells, 0);
+        labelList nNbrs(nFineCells, Zero);
 
         forAll(upperAddr, facei)
         {

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGProcAgglomerations/masterCoarsestGAMGProcAgglomeration/masterCoarsestGAMGProcAgglomeration.C

@@ -95,7 +95,7 @@ bool Foam::masterCoarsestGAMGProcAgglomeration::agglomerate()
             if (nProcs > 1)
             {
                 // Processor restriction map: per processor the coarse processor
-                labelList procAgglomMap(nProcs, 0);
+                labelList procAgglomMap(nProcs, Zero);
 
                 // Master processor
                 labelList masterProcs;

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGProcAgglomerations/procFacesGAMGProcAgglomeration/procFacesGAMGProcAgglomeration.C

@@ -150,7 +150,7 @@ Foam::procFacesGAMGProcAgglomeration::processorAgglomeration
     label singleCellMeshComm = UPstream::allocateCommunicator
     (
         mesh.comm(),
-        labelList(1, label(0))            // only processor 0
+        labelList(1, Zero)   // only processor 0
     );
 
     scalarField faceWeights;

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGSolverAgglomerateMatrix.C

@@ -253,7 +253,7 @@ void Foam::GAMGSolver::agglomerateInterfaceCoefficients
             coarseInterfaceBouCoeffs.set
             (
                 inti,
-                new scalarField(nPatchFaces[inti], 0.0)
+                new scalarField(nPatchFaces[inti], Zero)
             );
             agglomeration_.restrictField
             (
@@ -265,7 +265,7 @@ void Foam::GAMGSolver::agglomerateInterfaceCoefficients
             coarseInterfaceIntCoeffs.set
             (
                 inti,
-                new scalarField(nPatchFaces[inti], 0.0)
+                new scalarField(nPatchFaces[inti], Zero)
             );
             agglomeration_.restrictField
             (

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/GAMGInterface/GAMGInterface.C

@@ -80,7 +80,7 @@ Foam::tmp<Foam::scalarField> Foam::GAMGInterface::agglomerateCoeffs
     const scalarField& fineCoeffs
 ) const
 {
-    tmp<scalarField> tcoarseCoeffs(new scalarField(size(), 0.0));
+    tmp<scalarField> tcoarseCoeffs(new scalarField(size(), Zero));
     scalarField& coarseCoeffs = tcoarseCoeffs.ref();
 
     if (fineCoeffs.size() != faceRestrictAddressing_.size())

src/OpenFOAM/matrices/scalarMatrices/scalarMatrices.C

@@ -221,7 +221,7 @@ void Foam::multiply
             << abort(FatalError);
     }
 
-    ans = scalarRectangularMatrix(A.m(), C.n(), scalar(0));
+    ans = scalarRectangularMatrix(A.m(), C.n(), Zero);
 
     for (label i=0; i<A.m(); i++)
     {
@@ -265,7 +265,7 @@ void Foam::multiply
             << abort(FatalError);
     }
 
-    ans = scalarRectangularMatrix(A.m(), C.n(), scalar(0));
+    ans = scalarRectangularMatrix(A.m(), C.n(), Zero);
 
     for (label i=0; i<A.m(); i++)
     {

src/OpenFOAM/matrices/scalarMatrices/scalarMatricesTemplates.C

@@ -249,7 +249,7 @@ void Foam::multiply
             << abort(FatalError);
     }
 
-    ans = Matrix<Form, Type>(A.m(), B.n(), scalar(0));
+    ans = Matrix<Form, Type>(A.m(), B.n(), Zero);
 
     for (label i=0; i<A.m(); i++)
     {

src/OpenFOAM/meshes/ProcessorTopology/commSchedule.C

@@ -242,7 +242,7 @@ Foam::commSchedule::commSchedule
 
     // Sort schedule_ by processor
 
-    labelList nProcScheduled(nProcs, 0);
+    labelList nProcScheduled(nProcs, Zero);
 
     // Count
     forAll(schedule_, i)

src/OpenFOAM/meshes/bandCompression/bandCompression.C

@@ -152,7 +152,7 @@ Foam::labelList Foam::bandCompression
 )
 {
     // Count number of neighbours
-    labelList numNbrs(offsets.size()-1, 0);
+    labelList numNbrs(offsets.size()-1, Zero);
     forAll(numNbrs, celli)
     {
         label start = offsets[celli];

src/OpenFOAM/meshes/lduMesh/lduPrimitiveMesh.C

@@ -132,7 +132,7 @@ Foam::labelList Foam::lduPrimitiveMesh::upperTriOrder
     const labelUList& upper
 )
 {
-    labelList nNbrs(nCells, 0);
+    labelList nNbrs(nCells, Zero);
 
     // Count number of upper neighbours
     forAll(lower, facei)
@@ -377,7 +377,7 @@ Foam::lduPrimitiveMesh::lduPrimitiveMesh
 
 
     label nOtherInterfaces = 0;
-    labelList nCoupledFaces(nMeshes, 0);
+    labelList nCoupledFaces(nMeshes, Zero);
 
     for (label procMeshI = 0; procMeshI < nMeshes; procMeshI++)
     {

src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.C

@@ -84,9 +84,9 @@ Foam::cellShape Foam::degenerateMatcher::match(const faceList& faces)
     return match
     (
         faces,
-        labelList(faces.size(), 0),    // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                             // cell 0
+        0,                              // cell 0
-        identity(faces.size())         // cell 0 consists of all faces
+        identity(faces.size())          // cell 0 consists of all faces
     );
 }
 

src/OpenFOAM/meshes/meshShapes/cellMatcher/hexMatcher.C

@@ -287,10 +287,10 @@ bool Foam::hexMatcher::isA(const faceList& faces)
     return matchShape
     (
         true,
-        faces,                      // all faces in mesh
+        faces,                          // all faces in mesh
-        labelList(faces.size(), 0), // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                          // cell label
+        0,                              // cell label
-        identity(faces.size())      // faces of cell 0
+        identity(faces.size())          // faces of cell 0
     );
 }
 

src/OpenFOAM/meshes/meshShapes/cellMatcher/prismMatcher.C

@@ -346,10 +346,10 @@ bool Foam::prismMatcher::isA(const faceList& faces)
     return matchShape
     (
         true,
-        faces,                      // all faces in mesh
+        faces,                          // all faces in mesh
-        labelList(faces.size(), 0), // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                          // cell label
+        0,                              // cell label
-        identity(faces.size())      // faces of cell 0
+        identity(faces.size())          // faces of cell 0
     );
 }
 

src/OpenFOAM/meshes/meshShapes/cellMatcher/pyrMatcher.C

@@ -268,10 +268,10 @@ bool Foam::pyrMatcher::isA(const faceList& faces)
     return matchShape
     (
         true,
-        faces,                      // all faces in mesh
+        faces,                          // all faces in mesh
-        labelList(faces.size(), 0), // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                          // cell label
+        0,                              // cell label
-        identity(faces.size())      // faces of cell 0
+        identity(faces.size())          // faces of cell 0
     );
 }
 

src/OpenFOAM/meshes/meshShapes/cellMatcher/tetMatcher.C

@@ -227,10 +227,10 @@ bool Foam::tetMatcher::isA(const faceList& faces)
     return matchShape
     (
         true,
-        faces,                      // all faces in mesh
+        faces,                          // all faces in mesh
-        labelList(faces.size(), 0), // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                          // cell label
+        0,                              // cell label
-        identity(faces.size())      // faces of cell 0
+        identity(faces.size())          // faces of cell 0
     );
 }
 

src/OpenFOAM/meshes/meshShapes/cellMatcher/tetWedgeMatcher.C

@@ -273,10 +273,10 @@ bool Foam::tetWedgeMatcher::isA(const faceList& faces)
     return matchShape
     (
         true,
-        faces,                      // all faces in mesh
+        faces,                          // all faces in mesh
-        labelList(faces.size(), 0), // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                          // cell label
+        0,                              // cell label
-        identity(faces.size())      // faces of cell 0
+        identity(faces.size())          // faces of cell 0
     );
 }
 

src/OpenFOAM/meshes/meshShapes/cellMatcher/wedgeMatcher.C

@@ -373,10 +373,10 @@ bool Foam::wedgeMatcher::isA(const faceList& faces)
     return matchShape
     (
         true,
-        faces,                      // all faces in mesh
+        faces,                          // all faces in mesh
-        labelList(faces.size(), 0), // cell 0 is owner of all faces
+        labelList(faces.size(), Zero),  // cell 0 is owner of all faces
-        0,                          // cell label
+        0,                              // cell label
-        identity(faces.size())      // faces of cell 0
+        identity(faces.size())          // faces of cell 0
     );
 }
 

src/OpenFOAM/meshes/pointMesh/pointMeshMapper/pointMapper.C

@@ -118,7 +118,7 @@ void Foam::pointMapper::calcAddressing() const
             {
                 // Mapped from a single point
                 addr[pointi] = labelList(1, cm[pointi]);
-                w[pointi] = scalarList(1, 1.0);
+                w[pointi] = scalarList(1, scalar(1));
             }
         }
 
@@ -134,8 +134,8 @@ void Foam::pointMapper::calcAddressing() const
             if (addr[pointi].empty())
             {
                 // Mapped from a dummy point. Take point 0 with weight 1.
-                addr[pointi] = labelList(1, label(0));
+                addr[pointi] = labelList(1, Zero);
-                w[pointi] = scalarList(1, 1.0);
+                w[pointi] = scalarList(1, scalar(1));
 
                 insertedPoints[nInsertedPoints] = pointi;
                 nInsertedPoints++;

src/OpenFOAM/meshes/pointMesh/pointMeshMapper/pointPatchMapper.C

@@ -83,14 +83,14 @@ void Foam::pointPatchMapper::calcAddressing() const
             if (ppm[i] >= 0)
             {
                 addr[i] = labelList(1, ppm[i]);
-                w[i] = scalarList(1, 1.0);
+                w[i] = scalarList(1, scalar(1));
             }
             else
             {
                 // Inserted point.
                 ///// Map from point0 (arbitrary choice)
-                //addr[i] = labelList(1, label(0));
+                //addr[i] = labelList(1, Zero);
-                //w[i] = scalarList(1, 1.0);
+                //w[i] = scalarList(1, scalar(1));
                 hasUnmapped_ = true;
             }
         }

src/OpenFOAM/meshes/polyMesh/globalMeshData/globalMeshData.C

@@ -1234,7 +1234,7 @@ void Foam::globalMeshData::calcPointBoundaryFaces
 
     // 1. Count
 
-    labelList nPointFaces(coupledPatch().nPoints(), 0);
+    labelList nPointFaces(coupledPatch().nPoints(), Zero);
 
     forAll(bMesh, patchi)
     {

src/OpenFOAM/meshes/polyMesh/mapPolyMesh/cellMapper/cellMapper.C

@@ -262,8 +262,8 @@ void Foam::cellMapper::calcAddressing() const
             if (addr[celli].empty())
             {
                 // Mapped from a dummy cell
-                addr[celli] = labelList(1, label(0));
+                addr[celli] = labelList(1, Zero);
-                w[celli] = scalarList(1, 1.0);
+                w[celli] = scalarList(1, scalar(1));
 
                 insertedCells[nInsertedCells] = celli;
                 nInsertedCells++;

src/OpenFOAM/meshes/polyMesh/mapPolyMesh/faceMapper/faceMapper.C

@@ -177,8 +177,8 @@ void Foam::faceMapper::calcAddressing() const
             if (addr[facei].empty())
             {
                 // Mapped from a dummy face
-                addr[facei] = labelList(1, label(0));
+                addr[facei] = labelList(1, Zero);
-                w[facei] = scalarList(1, 1.0);
+                w[facei] = scalarList(1, scalar(1));
 
                 insertedFaces[nInsertedFaces] = facei;
                 nInsertedFaces++;

src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.C

@@ -311,7 +311,7 @@ Foam::mapDistribute::mapDistribute
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     // Count per transformIndex
     label nTrafo = globalTransforms.transformPermutations().size();
-    labelList nPerTransform(nTrafo, 0);
+    labelList nPerTransform(nTrafo, Zero);
     forAll(transformedElements, i)
     {
         labelPair elem = transformedElements[i];
@@ -420,7 +420,7 @@ Foam::mapDistribute::mapDistribute
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     // Count per transformIndex
     label nTrafo = globalTransforms.transformPermutations().size();
-    labelList nPerTransform(nTrafo, 0);
+    labelList nPerTransform(nTrafo, Zero);
     forAll(transformedElements, celli)
     {
         const labelPairList& elems = transformedElements[celli];

src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistributeBase.C

@@ -289,7 +289,7 @@ void Foam::mapDistributeBase::calcCompactAddressing
     compactMap.setSize(Pstream::nProcs());
 
     // Count all (non-local) elements needed. Just for presizing map.
-    labelList nNonLocal(Pstream::nProcs(), 0);
+    labelList nNonLocal(Pstream::nProcs(), Zero);
 
     forAll(elements, i)
     {
@@ -338,7 +338,7 @@ void Foam::mapDistributeBase::calcCompactAddressing
     compactMap.setSize(Pstream::nProcs());
 
     // Count all (non-local) elements needed. Just for presizing map.
-    labelList nNonLocal(Pstream::nProcs(), 0);
+    labelList nNonLocal(Pstream::nProcs(), Zero);
 
     forAll(cellCells, cellI)
     {
@@ -616,8 +616,8 @@ Foam::mapDistributeBase::mapDistributeBase
     }
 
     // Per processor the number of samples we have to send/receive.
-    labelList nSend(Pstream::nProcs(), 0);
+    labelList nSend(Pstream::nProcs(), Zero);
-    labelList nRecv(Pstream::nProcs(), 0);
+    labelList nRecv(Pstream::nProcs(), Zero);
 
     forAll(sendProcs, sampleI)
     {

src/OpenFOAM/meshes/polyMesh/polyMeshTetDecomposition/polyMeshTetDecomposition.C

@@ -55,7 +55,7 @@ Foam::label Foam::polyMeshTetDecomposition::findSharedBasePoint
 
     const point& oCc = pC[oCI];
 
-    List<scalar> tetQualities(2, 0.0);
+    List<scalar> tetQualities(2, Zero);
 
     forAll(f, faceBasePtI)
     {