diff --git a/code/nel/include/nel/3d/zone.h b/code/nel/include/nel/3d/zone.h
index 9c60013a8..4aaaea53b 100644
--- a/code/nel/include/nel/3d/zone.h
+++ b/code/nel/include/nel/3d/zone.h
@@ -163,7 +163,7 @@ public:
 	/** There is (OrderS/2+1) * (OrderT/2+1) tiles light influence.
 	 *	It indicates which static pointLight influence each corner of a TessBlock (block of 2*2 tiles).
 	 *
-	 *	If size()==0, suppose no light influence. but CZone::retrieve() always return a
+	 *	If empty(), suppose no light influence. but CZone::retrieve() always return a
 	 *	size() == (OrderS/2+1) * (OrderT/2+1).
 	 *
 	 * They are stored in line first order, from S=0 to 1, and T=0 to 1.
diff --git a/code/nel/include/nel/misc/cdb.h b/code/nel/include/nel/misc/cdb.h
index bc02dc85b..4a6e65097 100644
--- a/code/nel/include/nel/misc/cdb.h
+++ b/code/nel/include/nel/misc/cdb.h
@@ -120,7 +120,7 @@ public:
 		 */
 		std::string toString() const
 		{
-			if (_Ids.size()==0) return std::string("");
+			if (_Ids.empty()) return std::string("");
 			std::string str=_Ids[0];
 			for (unsigned i=1; i<_Ids.size(); i++)
 				str +=std::string(":")+ _Ids[i];
diff --git a/code/nel/src/3d/driver.cpp b/code/nel/src/3d/driver.cpp
index 9bd23f815..3ba0178f2 100644
--- a/code/nel/src/3d/driver.cpp
+++ b/code/nel/src/3d/driver.cpp
@@ -50,14 +50,14 @@ IDriver::~IDriver()
 	{
 		CSynchronized<TTexDrvInfoPtrMap>::CAccessor access(&_SyncTexDrvInfos);
 		TTexDrvInfoPtrMap &rTexDrvInfos = access.value();
-		nlassert( rTexDrvInfos.size() == 0 );
+		nlassert(rTexDrvInfos.empty());
 	}
 
-	nlassert(_TexDrvShares.size()==0);
-	nlassert(_MatDrvInfos.size()==0);
-	nlassert(_VBDrvInfos.size()==0);
-	nlassert(_IBDrvInfos.size()==0);
-	nlassert(_GPUPrgDrvInfos.size()==0);
+	nlassert(_TexDrvShares.empty());
+	nlassert(_MatDrvInfos.empty());
+	nlassert(_VBDrvInfos.empty());
+	nlassert(_IBDrvInfos.empty());
+	nlassert(_GPUPrgDrvInfos.empty());
 }
 
 
diff --git a/code/nel/src/3d/dru.cpp b/code/nel/src/3d/dru.cpp
index bb86d8b84..fd3e77404 100644
--- a/code/nel/src/3d/dru.cpp
+++ b/code/nel/src/3d/dru.cpp
@@ -528,7 +528,7 @@ void			CDRU::drawTrianglesUnlit(const NLMISC::CTriangleUV	*trilist, sint ntris,
 // ***************************************************************************
 void			CDRU::drawTrianglesUnlit(const std::vector<NLMISC::CTriangleUV> &trilist, CMaterial &mat, IDriver& driver)
 {
-	if(trilist.size()==0)
+	if(trilist.empty())
 		return;
 
 	CDRU::drawTrianglesUnlit( &(*trilist.begin()), (uint)trilist.size(), mat, driver);
@@ -570,7 +570,7 @@ void			CDRU::drawLinesUnlit(const NLMISC::CLine	*linelist, sint nlines, CMateria
 // ***************************************************************************
 void			CDRU::drawLinesUnlit(const std::vector<NLMISC::CLine> &linelist, CMaterial &mat, IDriver& driver)
 {
-	if(linelist.size()==0)
+	if(linelist.empty())
 		return;
 	CDRU::drawLinesUnlit( &(*linelist.begin()), (sint)linelist.size(), mat, driver);
 }
diff --git a/code/nel/src/3d/landscape.cpp b/code/nel/src/3d/landscape.cpp
index ccdeabc34..d588fa424 100644
--- a/code/nel/src/3d/landscape.cpp
+++ b/code/nel/src/3d/landscape.cpp
@@ -2859,7 +2859,7 @@ void			CLandscape::setupAutomaticLightDir(const CVector &lightDir)
 // ***************************************************************************
 CVector		CLandscape::getHeightFieldDeltaZ(float x, float y) const
 {
-	if(_HeightField.ZPatchs.size()==0)
+	if(_HeightField.ZPatchs.empty())
 		return CVector::Null;
 
 	// map to _HeightField coordinates.
diff --git a/code/nel/src/3d/landscapevb_allocator.cpp b/code/nel/src/3d/landscapevb_allocator.cpp
index 43c38ab64..c6815ea05 100644
--- a/code/nel/src/3d/landscapevb_allocator.cpp
+++ b/code/nel/src/3d/landscapevb_allocator.cpp
@@ -134,7 +134,7 @@ void			CLandscapeVBAllocator::resetReallocation()
 uint			CLandscapeVBAllocator::allocateVertex()
 {
 	// if no more free, allocate.
-	if( _VertexFreeMemory.size()==0 )
+	if( _VertexFreeMemory.empty() )
 	{
 		// enlarge capacity.
 		uint	newResize;
diff --git a/code/nel/src/3d/mesh.cpp b/code/nel/src/3d/mesh.cpp
index a533632c5..0d3095182 100644
--- a/code/nel/src/3d/mesh.cpp
+++ b/code/nel/src/3d/mesh.cpp
@@ -52,7 +52,7 @@ namespace NL3D
 static	NLMISC::CAABBoxExt	makeBBox(const std::vector<CVector>	&Vertices)
 {
 	NLMISC::CAABBox		ret;
-	nlassert(Vertices.size());
+	nlassert(!Vertices.empty());
 	ret.setCenter(Vertices[0]);
 	for(sint i=0;i<(sint)Vertices.size();i++)
 	{
@@ -167,7 +167,7 @@ void	CMeshGeom::build (CMesh::CMeshBuild &m, uint numMaxMaterial)
 	sint	i;
 
 	// Empty geometry?
-	if(m.Vertices.size()==0 || m.Faces.size()==0)
+	if(m.Vertices.empty() || m.Faces.empty())
 	{
 		_VBuffer.setNumVertices(0);
 		_VBuffer.setName("CMeshGeom");
@@ -436,7 +436,7 @@ void	CMeshGeom::build (CMesh::CMeshBuild &m, uint numMaxMaterial)
 	}
 
 	// Set the vertex buffer preferred memory
-	bool avoidVBHard= _Skinned || ( _MeshMorpher && _MeshMorpher->BlendShapes.size()>0 );
+	bool avoidVBHard= _Skinned || ( _MeshMorpher && !_MeshMorpher->BlendShapes.empty() );
 	_VBuffer.setPreferredMemory (avoidVBHard?CVertexBuffer::RAMPreferred:CVertexBuffer::StaticPreferred, false);
 
 	// End!!
@@ -638,7 +638,7 @@ void	CMeshGeom::render(IDriver *drv, CTransformShape *trans, float polygonCount,
 	for(uint mb=0;mb<_MatrixBlocks.size();mb++)
 	{
 		CMatrixBlock	&mBlock= _MatrixBlocks[mb];
-		if(mBlock.RdrPass.size()==0)
+		if(mBlock.RdrPass.empty())
 			continue;
 
 		// Global alpha ?
@@ -790,7 +790,7 @@ void	CMeshGeom::renderSkin(CTransformShape *trans, float alphaMRM)
 	for(uint mb=0;mb<_MatrixBlocks.size();mb++)
 	{
 		CMatrixBlock	&mBlock= _MatrixBlocks[mb];
-		if(mBlock.RdrPass.size()==0)
+		if(mBlock.RdrPass.empty())
 			continue;
 
 		// Render all pass.
@@ -840,7 +840,7 @@ void	CMeshGeom::renderSimpleWithMaterial(IDriver *drv, const CMatrix &worldMatri
 	for(uint mb=0;mb<_MatrixBlocks.size();mb++)
 	{
 		CMatrixBlock	&mBlock= _MatrixBlocks[mb];
-		if(mBlock.RdrPass.size()==0)
+		if(mBlock.RdrPass.empty())
 			continue;
 
 		// Render all pass.
@@ -998,10 +998,10 @@ void	CMeshGeom::compileRunTime()
 	_PreciseClipping= _BBox.getRadius() >= NL3D_MESH_PRECISE_CLIP_THRESHOLD;
 
 	// Support MeshBlockRendering only if not skinned/meshMorphed.
-	bool	supportMeshBlockRendering= !_Skinned && _MeshMorpher->BlendShapes.size()==0;
+	bool	supportMeshBlockRendering= !_Skinned && _MeshMorpher->BlendShapes.empty();
 
 	// true only if one matrix block, and at least one rdrPass.
-	supportMeshBlockRendering= supportMeshBlockRendering && _MatrixBlocks.size()==1 && _MatrixBlocks[0].RdrPass.size()>0;
+	supportMeshBlockRendering= supportMeshBlockRendering && _MatrixBlocks.size()==1 && !_MatrixBlocks[0].RdrPass.empty();
 	if (supportMeshBlockRendering && _MeshVertexProgram)
 	{
 		supportMeshBlockRendering = supportMeshBlockRendering && _MeshVertexProgram->supportMeshBlockRendering();
@@ -1021,7 +1021,7 @@ void	CMeshGeom::compileRunTime()
 	if(supportMBRPerMaterial)
 		_SupportMBRFlags|= MBRSortPerMaterial;
 
-	bool avoidVBHard= _Skinned || ( _MeshMorpher && _MeshMorpher->BlendShapes.size()>0 );
+	bool avoidVBHard= _Skinned || ( _MeshMorpher && !_MeshMorpher->BlendShapes.empty() );
 	_VBuffer.setPreferredMemory (avoidVBHard?CVertexBuffer::RAMPreferred:CVertexBuffer::StaticPreferred, false);
 }
 
diff --git a/code/nel/src/3d/mesh_morpher.cpp b/code/nel/src/3d/mesh_morpher.cpp
index 4d7ed8255..39f44a130 100644
--- a/code/nel/src/3d/mesh_morpher.cpp
+++ b/code/nel/src/3d/mesh_morpher.cpp
@@ -407,9 +407,10 @@ void CMeshMorpher::updateRawSkin (CVertexBuffer *vbOri,
 			rFactor*= 0.01f;
 			uint32		numVertices= (uint32)rBS.VertRefs.size();
 			// don't know why, but cases happen where deltaNorm not empty while deltaPos is
-			bool		hasPos= rBS.deltaPos.size()>0;
-			bool		hasNorm= rBS.deltaNorm.size()>0;
-			bool		hasUV= rBS.deltaUV.size()>0;
+			bool		hasPos = !rBS.deltaPos.empty();
+			bool		hasNorm = !rBS.deltaNorm.empty();
+			bool		hasUV = !rBS.deltaUV.empty();
+
 			for (j = 0; j < numVertices; ++j)
 			{
 				// Get the vertex Index in the VBufferFinal
diff --git a/code/nel/src/3d/mesh_mrm.cpp b/code/nel/src/3d/mesh_mrm.cpp
index 999b3b62d..e5b61c966 100644
--- a/code/nel/src/3d/mesh_mrm.cpp
+++ b/code/nel/src/3d/mesh_mrm.cpp
@@ -180,7 +180,7 @@ void		CMeshMRMGeom::CLod::optimizeTriangleOrder()
 static	NLMISC::CAABBoxExt	makeBBox(const std::vector<CVector>	&Vertices)
 {
 	NLMISC::CAABBox		ret;
-	nlassert(Vertices.size());
+	nlassert(!Vertices.empty());
 	ret.setCenter(Vertices[0]);
 	for(sint i=0;i<(sint)Vertices.size();i++)
 	{
@@ -236,7 +236,7 @@ void			CMeshMRMGeom::build(CMesh::CMeshBuild &m, std::vector<CMesh::CMeshBuild*>
 									uint numMaxMaterial, const CMRMParameters &params)
 {
 	// Empty geometry?
-	if(m.Vertices.size()==0 || m.Faces.size()==0)
+	if(m.Vertices.empty() || m.Faces.empty())
 	{
 		_VBufferFinal.setNumVertices(0);
 		_VBufferFinal.reserve(0);
@@ -308,7 +308,7 @@ void			CMeshMRMGeom::build(CMesh::CMeshBuild &m, std::vector<CMesh::CMeshBuild*>
 	_LevelDetail.MaxFaceUsed= 0;
 	_LevelDetail.MinFaceUsed= 0;
 	// Count of primitive block
-	if(_Lods.size()>0)
+	if (!_Lods.empty())
 	{
 		uint	pb;
 		// Compute MinFaces.
@@ -469,7 +469,7 @@ void	CMeshMRMGeom::applyGeomorph(std::vector<CMRMWedgeGeom>  &geoms, float alpha
 void	CMeshMRMGeom::applyGeomorphWithVBHardPtr(std::vector<CMRMWedgeGeom>  &geoms, float alphaLod, uint8 *vertexDestPtr)
 {
 	// no geomorphs? quit.
-	if(geoms.size()==0)
+	if(geoms.empty())
 		return;
 
 	clamp(alphaLod, 0.f, 1.f);
@@ -900,7 +900,7 @@ inline sint	CMeshMRMGeom::chooseLod(float alphaMRM, float &alphaLod)
 void	CMeshMRMGeom::render(IDriver *drv, CTransformShape *trans, float polygonCount, uint32 rdrFlags, float globalAlpha)
 {
 	nlassert(drv);
-	if(_Lods.size()==0)
+	if(_Lods.empty())
 		return;
 
 
@@ -922,7 +922,7 @@ void	CMeshMRMGeom::render(IDriver *drv, CTransformShape *trans, float polygonCou
 
 	// Render the choosen Lod.
 	CLod	&lod= _Lods[numLod];
-	if(lod.RdrPass.size()==0)
+	if(lod.RdrPass.empty())
 		return;
 
 
@@ -1104,7 +1104,7 @@ void	CMeshMRMGeom::renderSkin(CTransformShape *trans, float alphaMRM)
 {
 	H_AUTO( NL3D_MeshMRMGeom_renderSkin );
 
-	if(_Lods.size()==0)
+	if(_Lods.empty())
 		return;
 
 
@@ -1126,7 +1126,7 @@ void	CMeshMRMGeom::renderSkin(CTransformShape *trans, float alphaMRM)
 
 	// Render the choosen Lod.
 	CLod	&lod= _Lods[numLod];
-	if(lod.RdrPass.size()==0)
+	if(lod.RdrPass.empty())
 		return;
 
 
@@ -1295,7 +1295,7 @@ sint	CMeshMRMGeom::renderSkinGroupGeom(CMeshMRMInstance	*mi, float alphaMRM, uin
 
 	// Render the choosen Lod.
 	CLod	&lod= _Lods[numLod];
-	if(lod.RdrPass.size()==0)
+	if(lod.RdrPass.empty())
 		// return no vertices added
 		return 0;
 
@@ -1942,7 +1942,7 @@ void	CMeshMRMGeom::loadFirstLod(NLMISC::IStream &f)
 
 
 	// If empty MRM, quit.
-	if(_LodInfos.size()==0)
+	if(_LodInfos.empty())
 		return;
 
 	/* If the version is <4, then SkinWeights are serialised per Lod.
@@ -2431,7 +2431,7 @@ void	CMeshMRMGeom::compileRunTime()
 	_PreciseClipping= _BBox.getRadius() >= NL3D_MESH_PRECISE_CLIP_THRESHOLD;
 
 	// Compute if can support SkinGrouping rendering
-	if(_Lods.size()==0 || !_Skinned)
+	if(_Lods.empty() || !_Skinned)
 	{
 		_SupportSkinGrouping= false;
 		_SupportShadowSkinGrouping= false;
@@ -2451,7 +2451,7 @@ void	CMeshMRMGeom::compileRunTime()
 	}
 
 	// Support MeshBlockRendering only if not skinned/meshMorphed.
-	_SupportMeshBlockRendering= !_Skinned && _MeshMorpher.BlendShapes.size()==0;
+	_SupportMeshBlockRendering= !_Skinned && _MeshMorpher.BlendShapes.empty();
 
 	// \todo yoyo: support later MeshVertexProgram
 	_SupportMeshBlockRendering= _SupportMeshBlockRendering && _MeshVertexProgram==NULL;
@@ -3367,7 +3367,7 @@ void		CMeshMRMGeom::updateRawSkinNormal(bool enabled, CMeshMRMInstance *mi, sint
 
 			// Case of MeshMorpher
 			//========
-			if(_MeshMorpher.BlendShapes.size()>0)
+			if(!_MeshMorpher.BlendShapes.empty())
 			{
 				skinLod.VertexRemap.resize((uint32)vertexFinalRemap.size());
 
diff --git a/code/nel/src/3d/mesh_mrm_skin.cpp b/code/nel/src/3d/mesh_mrm_skin.cpp
index 23ff04fee..7bba5d370 100644
--- a/code/nel/src/3d/mesh_mrm_skin.cpp
+++ b/code/nel/src/3d/mesh_mrm_skin.cpp
@@ -55,7 +55,7 @@ namespace NL3D
 void	CMeshMRMGeom::applySkin(CLod &lod, const CSkeletonModel *skeleton)
 {
 	nlassert(_Skinned);
-	if(_SkinWeights.size()==0)
+	if(_SkinWeights.empty())
 		return;
 
 	// get vertexPtr.
diff --git a/code/nel/src/3d/mesh_mrm_skin_template.cpp b/code/nel/src/3d/mesh_mrm_skin_template.cpp
index 4a9e11106..63a0b67e8 100644
--- a/code/nel/src/3d/mesh_mrm_skin_template.cpp
+++ b/code/nel/src/3d/mesh_mrm_skin_template.cpp
@@ -380,7 +380,7 @@ static void	applyArraySkinTangentSpaceT(uint numMatrixes, uint32 *infPtr, CMesh:
 void	CMeshMRMGeom::applySkinWithNormal(CLod &lod, const CSkeletonModel *skeleton)
 {
 	nlassert(_Skinned);
-	if(_SkinWeights.size()==0)
+	if(_SkinWeights.empty())
 		return;
 
 	// get vertexPtr / normalOff.
@@ -446,7 +446,7 @@ void	CMeshMRMGeom::applySkinWithTangentSpace(CLod &lod, const CSkeletonModel *sk
 	uint tangentSpaceTexCoord)
 {
 	nlassert(_Skinned);
-	if(_SkinWeights.size()==0)
+	if(_SkinWeights.empty())
 		return;
 
 	// get vertexPtr / normalOff / tangent space offset.
@@ -1468,7 +1468,7 @@ void		CMeshMRMGeom::applyArrayRawSkinNormal4(CRawVertexNormalSkin4 *src, uint8 *
 void	CMeshMRMGeom::applyRawSkinWithNormal(CLod &lod, CRawSkinNormalCache &rawSkinLod, const CSkeletonModel *skeleton, uint8 *vbHard, float alphaLod)
 {
 	nlassert(_Skinned);
-	if(_SkinWeights.size()==0)
+	if(_SkinWeights.empty())
 		return;
 
 	// Some assert
diff --git a/code/nel/src/3d/mesh_mrm_skinned.cpp b/code/nel/src/3d/mesh_mrm_skinned.cpp
index 6af29bf73..11a1b41fc 100644
--- a/code/nel/src/3d/mesh_mrm_skinned.cpp
+++ b/code/nel/src/3d/mesh_mrm_skinned.cpp
@@ -160,7 +160,7 @@ void	CMeshMRMSkinnedGeom::CLod::buildPrimitiveBlock(uint renderPass, const CInde
 static	NLMISC::CAABBoxExt	makeBBox(const std::vector<CVector>	&Vertices)
 {
 	NLMISC::CAABBox		ret;
-	nlassert(Vertices.size());
+	nlassert(!Vertices.empty());
 	ret.setCenter(Vertices[0]);
 	for(sint i=0;i<(sint)Vertices.size();i++)
 	{
@@ -211,7 +211,7 @@ void			CMeshMRMSkinnedGeom::build(CMesh::CMeshBuild &m,
 									uint numMaxMaterial, const CMRMParameters &params)
 {
 	// Empty geometry?
-	if(m.Vertices.size()==0 || m.Faces.size()==0)
+	if(m.Vertices.empty() || m.Faces.empty())
 	{
 		_VBufferFinal.clear();
 		_Lods.clear();
@@ -261,7 +261,7 @@ void			CMeshMRMSkinnedGeom::build(CMesh::CMeshBuild &m,
 	_LevelDetail.MaxFaceUsed= 0;
 	_LevelDetail.MinFaceUsed= 0;
 	// Count of primitive block
-	if(_Lods.size()>0)
+	if(!_Lods.empty())
 	{
 		uint	pb;
 		// Compute MinFaces.
@@ -421,7 +421,7 @@ void	CMeshMRMSkinnedGeom::applyGeomorph(std::vector<CMRMWedgeGeom>  &geoms, floa
 void	CMeshMRMSkinnedGeom::applyGeomorphWithVBHardPtr(std::vector<CMRMWedgeGeom>  &geoms, float alphaLod)
 {
 	// no geomorphs? quit.
-	if(geoms.size()==0)
+	if(geoms.empty())
 		return;
 
 	clamp(alphaLod, 0.f, 1.f);
@@ -579,7 +579,7 @@ inline sint	CMeshMRMSkinnedGeom::chooseLod(float alphaMRM, float &alphaLod)
 void	CMeshMRMSkinnedGeom::render(IDriver *drv, CTransformShape *trans, float polygonCount, uint32 rdrFlags, float globalAlpha)
 {
 	nlassert(drv);
-	if(_Lods.size()==0)
+	if(_Lods.empty())
 		return;
 
 
@@ -597,7 +597,7 @@ void	CMeshMRMSkinnedGeom::render(IDriver *drv, CTransformShape *trans, float pol
 
 	// Render the choosen Lod.
 	CLod	&lod= _Lods[numLod];
-	if(lod.RdrPass.size()==0)
+	if(lod.RdrPass.empty())
 		return;
 
 
@@ -757,7 +757,7 @@ sint	CMeshMRMSkinnedGeom::renderSkinGroupGeom(CMeshMRMSkinnedInstance	*mi, float
 
 	// Render the choosen Lod.
 	CLod	&lod= _Lods[numLod];
-	if(lod.RdrPass.size()==0)
+	if(lod.RdrPass.empty())
 		// return no vertices added
 		return 0;
 
diff --git a/code/nel/src/3d/mrm_builder.cpp b/code/nel/src/3d/mrm_builder.cpp
index 1002436d7..3035aa78b 100644
--- a/code/nel/src/3d/mrm_builder.cpp
+++ b/code/nel/src/3d/mrm_builder.cpp
@@ -3119,7 +3119,7 @@ bool	CMRMBuilder::buildMRMSewingMeshes(const CMesh::CMeshBuild &mbuild, uint nWa
 {
 	nlassert(nWantedLods>=1);
 	nlassert(divisor>=1);
-	if(mbuild.Interfaces.size()==0)
+	if(mbuild.Interfaces.empty())
 		return false;
 	// must have same size
 	if(mbuild.InterfaceLinks.size()!=mbuild.Vertices.size())
diff --git a/code/nel/src/3d/patch.cpp b/code/nel/src/3d/patch.cpp
index 799e5b8a3..4b0253ead 100644
--- a/code/nel/src/3d/patch.cpp
+++ b/code/nel/src/3d/patch.cpp
@@ -604,7 +604,8 @@ void			CPatch::addRefTessBlocks()
 	uint	i;
 
 	TessBlockRefCount++;
-	if(TessBlocks.size()==0)
+
+	if (TessBlocks.empty())
 	{
 		// Allocate the tessblocks.
 		//==========
@@ -1629,7 +1630,7 @@ void			CPatch::serial(NLMISC::IStream &f)
 
 			// then just copy to TileColors.
 			TileColors.resize(tmpArray.size());
-			if(TileColors.size()>0)
+			if(!TileColors.empty())
 			{
 				memcpy(&TileColors[0], &tmpArray[0], TileColors.size()*sizeof(CTileColor));
 			}
diff --git a/code/nel/src/3d/patch_render.cpp b/code/nel/src/3d/patch_render.cpp
index bc74648d3..ee916a3fe 100644
--- a/code/nel/src/3d/patch_render.cpp
+++ b/code/nel/src/3d/patch_render.cpp
@@ -1452,7 +1452,7 @@ void		CPatch::computeSoftwareGeomorphAndAlpha()
 	// Need only to fill CTessVertex, so do it only for FarVertices
 	// Hence Geomorph is done twice on edges of patches!!.
 	// If not too near for precise, fast compute of geomorph.
-	if( TessBlocks.size()==0 )
+	if( TessBlocks.empty() )
 	{
 		// Just update all vertices of master block.
 		computeGeomorphVertexList(MasterBlock.FarVertexList);
diff --git a/code/nel/src/3d/patchdlm_context.cpp b/code/nel/src/3d/patchdlm_context.cpp
index 53d580e66..f7d2236e8 100644
--- a/code/nel/src/3d/patchdlm_context.cpp
+++ b/code/nel/src/3d/patchdlm_context.cpp
@@ -540,7 +540,7 @@ bool			CPatchDLMContext::generate(CPatch *patch, CTextureDLM *textureDLM, CPatch
 #ifndef NL_DLM_TILE_RES
 
 	// retrieve patch tileColor pointer.
-	nlassert(_Patch->TileColors.size()>0);
+	nlassert(!_Patch->TileColors.empty());
 	CTileColor	*tileColor= &_Patch->TileColors[0];
 
 	// skip 1 tiles colors per column and per row
@@ -898,7 +898,7 @@ void			CPatchDLMContext::compileLighting(TCompileType compType, CRGBA modulateCt
 	if(! (_IsSrcTextureFullBlack && _IsDstTextureFullBlack) )
 	{
 		// if lightMap allocated
-		if(_LightMap.size()>0 && _DLMTexture)
+		if(!_LightMap.empty() && _DLMTexture)
 		{
 			// If the srcTexture is full black (ie no pointLight influence touch it),
 			if(_IsSrcTextureFullBlack)
diff --git a/code/nel/src/3d/ps_face.cpp b/code/nel/src/3d/ps_face.cpp
index 63909287d..e87459acf 100644
--- a/code/nel/src/3d/ps_face.cpp
+++ b/code/nel/src/3d/ps_face.cpp
@@ -226,7 +226,7 @@ void CPSFace::step(TPSProcessPass pass)
 	else if (pass == PSMotion)
 	{
 
-		if (_PrecompBasis.size()) // do we use precomputed basis ?
+		if (!_PrecompBasis.empty()) // do we use precomputed basis ?
 		{
 			// rotate all precomputed basis
 			for (CPSVector< CPlaneBasisPair >::V::iterator it = _PrecompBasis.begin(); it != _PrecompBasis.end(); ++it)
@@ -394,7 +394,7 @@ void CPSFace::deleteElement(uint32 index)
 	NL_PS_FUNC(CPSFace_deleteElement)
 	CPSQuad::deleteElement(index);
 	deletePlaneBasisElement(index);
-	if (_PrecompBasis.size()) // do we use precomputed basis ?
+	if (!_PrecompBasis.empty()) // do we use precomputed basis ?
 	{
 		// replace ourself by the last element...
 		_IndexInPrecompBasis[index] = _IndexInPrecompBasis[_Owner->getSize() - 1];
@@ -407,7 +407,7 @@ void CPSFace::resize(uint32 size)
 	NL_PS_FUNC(CPSFace_resize)
 	nlassert(size < (1 << 16));
 	resizePlaneBasis(size);
-	if (_PrecompBasis.size()) // do we use precomputed basis ?
+	if (!_PrecompBasis.empty()) // do we use precomputed basis ?
 	{
 		_IndexInPrecompBasis.resize(size);
 	}
diff --git a/code/nel/src/3d/ps_mesh.cpp b/code/nel/src/3d/ps_mesh.cpp
index f473a79ee..5002f0054 100644
--- a/code/nel/src/3d/ps_mesh.cpp
+++ b/code/nel/src/3d/ps_mesh.cpp
@@ -1994,7 +1994,7 @@ void CPSConstraintMesh::deleteElement(uint32 index)
 	deleteSizeElement(index);
 	deletePlaneBasisElement(index);
 	// TODO : avoid code cuplication with CPSFace ...
-	if (_PrecompBasis.size()) // do we use precomputed basis ?
+	if (!_PrecompBasis.empty()) // do we use precomputed basis ?
 	{
 		// replace ourself by the last element...
 		_IndexInPrecompBasis[index] = _IndexInPrecompBasis[_Owner->getSize() - 1];
@@ -2011,7 +2011,7 @@ void CPSConstraintMesh::resize(uint32 size)
 	resizeSize(size);
 	resizePlaneBasis(size);
 	// TODO : avoid code cuplication with CPSFace ...
-	if (_PrecompBasis.size()) // do we use precomputed basis ?
+	if (!_PrecompBasis.empty()) // do we use precomputed basis ?
 	{
 		_IndexInPrecompBasis.resize(size);
 	}
diff --git a/code/nel/src/3d/quad_effect.cpp b/code/nel/src/3d/quad_effect.cpp
index 8b40a786c..a6c75c99d 100644
--- a/code/nel/src/3d/quad_effect.cpp
+++ b/code/nel/src/3d/quad_effect.cpp
@@ -229,7 +229,7 @@ void CQuadEffect::processPoly(const TPoint2DVect &poly
 	static TRasters rDest;
 	float currY;
 	makeRasters(poly, quadWidth, quadHeight, rDest, currY);
-	if (dest.size())
+	if (!dest.empty())
 	{
 		TRasters::const_iterator it, endIt = rDest.end();
 		for (it = rDest.begin(); it != endIt; ++it)
diff --git a/code/nel/src/3d/shadow_map_manager.cpp b/code/nel/src/3d/shadow_map_manager.cpp
index 0c9f7ba8b..e3f8fde99 100644
--- a/code/nel/src/3d/shadow_map_manager.cpp
+++ b/code/nel/src/3d/shadow_map_manager.cpp
@@ -705,7 +705,7 @@ void			CShadowMapManager::renderProject(CScene *scene)
 	}
 	driver->activeVertexBuffer (CopyQuads);
 
-	if (_ShadowCasters.size()>0)
+	if (!_ShadowCasters.empty())
 	{
 		// get the transform to compute shadow map.
 		CTransform	*sc= _ShadowCasters[0];
diff --git a/code/nel/src/3d/texture_dlm.cpp b/code/nel/src/3d/texture_dlm.cpp
index 2c8603859..3e7695936 100644
--- a/code/nel/src/3d/texture_dlm.cpp
+++ b/code/nel/src/3d/texture_dlm.cpp
@@ -119,7 +119,7 @@ bool			CTextureDLM::canCreateLightMap(uint w, uint h)
 		return true;
 
 	// If empty, test if there is an empty block.
-	return _EmptyBlocks.size()>0;
+	return !_EmptyBlocks.empty();
 }
 
 
@@ -166,7 +166,7 @@ bool			CTextureDLM::createLightMap(uint w, uint h, uint &x, uint &y)
 	if(_FreeBlocks[lMapType]==NULL)
 	{
 		// list is empty => allocate a block from _EmptyBlocks.
-		nlassert(_EmptyBlocks.size()>0);
+		nlassert(!_EmptyBlocks.empty());
 
 		// pop a block from empty list
 		CBlock	*block= &_Blocks[_EmptyBlocks.back()];
diff --git a/code/nel/src/3d/tile_bank.cpp b/code/nel/src/3d/tile_bank.cpp
index 4c1ba1c23..d4e26ab06 100644
--- a/code/nel/src/3d/tile_bank.cpp
+++ b/code/nel/src/3d/tile_bank.cpp
@@ -108,7 +108,7 @@ void    CTileBank::serial(NLMISC::IStream &f) throw(NLMISC::EStream)
 		if (f.isReading())
 		{
 			// Checks
-			nlassert (_DisplacementMap.size()>0);
+			nlassert (!_DisplacementMap.empty());
 
 			// Set first empty
 			_DisplacementMap[0].setEmpty ();
@@ -543,7 +543,7 @@ CTileNoiseMap *CTileBank::getTileNoiseMap (uint tileNumber, uint tileSubNoise)
 		}
 	}
 
-	if (_DisplacementMap.size()==0 || _DisplacementMap[0]._TileNoiseMap)
+	if (_DisplacementMap.empty() || _DisplacementMap[0]._TileNoiseMap)
 		return NULL;
 
 	// Checks
diff --git a/code/nel/src/3d/vegetable_blend_layer_model.cpp b/code/nel/src/3d/vegetable_blend_layer_model.cpp
index a1df0d89d..44754add2 100644
--- a/code/nel/src/3d/vegetable_blend_layer_model.cpp
+++ b/code/nel/src/3d/vegetable_blend_layer_model.cpp
@@ -71,7 +71,7 @@ void	CVegetableBlendLayerModel::render(IDriver *driver)
 
 	nlassert(VegetableManager);
 
-	if(SortBlocks.size()==0)
+	if(SortBlocks.empty())
 		return;
 
 	// Setup VegetableManager renderState (like pre-setuped material)
diff --git a/code/nel/src/3d/vegetable_manager.cpp b/code/nel/src/3d/vegetable_manager.cpp
index 640d5e77f..e479a5e62 100644
--- a/code/nel/src/3d/vegetable_manager.cpp
+++ b/code/nel/src/3d/vegetable_manager.cpp
@@ -1019,12 +1019,12 @@ void			CVegetableManager::reserveIgCompile(CVegetableInstanceGroup *ig, const CV
 	{
 		CVegetableInstanceGroup::CVegetableRdrPass	&vegetRdrPass= ig->_RdrPass[rdrPass];
 		nlassert(vegetRdrPass.TriangleIndices.getNumIndexes()==0);
-		nlassert(vegetRdrPass.TriangleLocalIndices.size()==0);
-		nlassert(vegetRdrPass.Vertices.size()==0);
-		nlassert(vegetRdrPass.LightedInstances.size()==0);
+		nlassert(vegetRdrPass.TriangleLocalIndices.empty());
+		nlassert(vegetRdrPass.Vertices.empty());
+		nlassert(vegetRdrPass.LightedInstances.empty());
 	}
 	// Do the same for all quadrants of the zsort rdrPass.
-	nlassert(ig->_TriangleQuadrantOrderArray.size()==0);
+	nlassert(ig->_TriangleQuadrantOrderArray.empty());
 	nlassert(ig->_TriangleQuadrantOrderNumTriangles==0);
 
 
@@ -2553,7 +2553,7 @@ bool		CVegetableManager::updateLightingIGPart()
 		}
 		CVegetableInstanceGroup::CVegetableRdrPass	&vegetRdrPass= _ULRootIg->_RdrPass[_ULCurrentIgRdrPass];
 
-		// if all instances are processed for this pass (especially if size()==0 !!)
+		// if all instances are processed for this pass (especially if empty() !!)
 		if(_ULCurrentIgInstance>= vegetRdrPass.LightedInstances.size())
 		{
 			// skip to the next rdrPass.
diff --git a/code/nel/src/3d/vegetablevb_allocator.cpp b/code/nel/src/3d/vegetablevb_allocator.cpp
index 29a03b51d..f5c833d8a 100644
--- a/code/nel/src/3d/vegetablevb_allocator.cpp
+++ b/code/nel/src/3d/vegetablevb_allocator.cpp
@@ -186,7 +186,7 @@ bool			CVegetableVBAllocator::exceedMaxVertexInBufferHard(uint numAddVerts) cons
 uint			CVegetableVBAllocator::allocateVertex()
 {
 	// if no more free, allocate.
-	if( _VertexFreeMemory.size()==0 )
+	if( _VertexFreeMemory.empty() )
 	{
 		// enlarge capacity.
 		uint	newResize;
diff --git a/code/nel/src/3d/water_model.cpp b/code/nel/src/3d/water_model.cpp
index fb53100cb..e6ae132e1 100644
--- a/code/nel/src/3d/water_model.cpp
+++ b/code/nel/src/3d/water_model.cpp
@@ -500,7 +500,7 @@ void	CWaterModel::traverseRender()
 		sint startY;
 		projPoly.computeBorders(rasters, startY);
 
-		if (rasters.size())
+		if (!rasters.empty())
 		{
 			//===========================//
 			// perform Water animation   //
diff --git a/code/nel/src/3d/zone.cpp b/code/nel/src/3d/zone.cpp
index c601f0fa4..263c61539 100644
--- a/code/nel/src/3d/zone.cpp
+++ b/code/nel/src/3d/zone.cpp
@@ -1126,7 +1126,7 @@ void			CZone::refineAll()
 {
 	nlassert(Compiled);
 
-	if(Patchs.size()==0)
+	if(Patchs.empty())
 		return;
 
 	// DO NOT do a forceNoRenderClip(), to avoid big allocation of Near/Far VB vertices in driver.
@@ -1150,7 +1150,7 @@ void			CZone::averageTesselationVertices()
 {
 	nlassert(Compiled);
 
-	if(Patchs.size()==0)
+	if(Patchs.empty())
 		return;
 
 	// averageTesselationVertices of ALL patchs.
@@ -1250,8 +1250,10 @@ void			CZone::resetRenderFarAndDeleteVBFV()
 void			CZone::forceMergeAtTileLevel()
 {
 	CPatch		*pPatch=0;
-	if(Patchs.size()>0)
+
+	if (!Patchs.empty())
 		pPatch= &(*Patchs.begin());
+
 	for(sint n=(sint)Patchs.size();n>0;n--, pPatch++)
 	{
 		pPatch->forceMergeAtTileLevel();
@@ -1446,7 +1448,7 @@ void			CZone::applyHeightField(const CLandscape &landScape)
 	vector<CBezierPatch>	patchs;
 
 	// no patch, do nothing.
-	if(Patchs.size()==0)
+	if(Patchs.empty())
 		return;
 
 	// 0. Unpack patchs to Bezier Patchs.
diff --git a/code/nel/src/3d/zone_lighter.cpp b/code/nel/src/3d/zone_lighter.cpp
index f5549e66a..c70ad0ba2 100644
--- a/code/nel/src/3d/zone_lighter.cpp
+++ b/code/nel/src/3d/zone_lighter.cpp
@@ -3113,7 +3113,7 @@ void CZoneLighter::addWaterShape(CWaterShape *shape, const NLMISC::CMatrix &MT)
 // ***********************************************************
 void CZoneLighter::makeQuadGridFromWaterShapes(NLMISC::CAABBox zoneBBox)
 {
-	if (!_WaterShapes.size()) return;
+	if (_WaterShapes.empty()) return;
 
 	NLMISC::CAABBox tmpBox;
 
diff --git a/code/nel/src/gui/group_header.cpp b/code/nel/src/gui/group_header.cpp
index d166b539b..908aa183e 100644
--- a/code/nel/src/gui/group_header.cpp
+++ b/code/nel/src/gui/group_header.cpp
@@ -159,7 +159,7 @@ namespace NLGUI
 		}
 
 		// resize H
-		if(entries.size()>0)
+		if (!entries.empty())
 		{
 			CInterfaceGroup *colEnclosing = entries[0]->getTargetColumn();
 			if (colEnclosing && !colEnclosing->getGroups().empty())
diff --git a/code/nel/src/gui/group_tab.cpp b/code/nel/src/gui/group_tab.cpp
index ca876c25e..69ccce046 100644
--- a/code/nel/src/gui/group_tab.cpp
+++ b/code/nel/src/gui/group_tab.cpp
@@ -262,7 +262,7 @@ namespace NLGUI
 		{
 			tabB->setId(string("tab") + NLMISC::toString(_Buttons.size()));
 
-			if(_Buttons.size()==0)
+			if(_Buttons.empty())
 			{
 				tabB->setParentPos(NULL);
 				tabB->setParentPosRef(Hotspot_TL);
@@ -453,7 +453,7 @@ namespace NLGUI
 	// ***************************************************************************
 	void CGroupTab::updateFirstTabButton()
 	{
-		if(!_HideOutTabs || (_Selection<0) || (_Buttons.size()==0) || (_Parent->getWReal()<0)
+		if(!_HideOutTabs || (_Selection<0) || _Buttons.empty() || (_Parent->getWReal()<0)
 			|| _FirstTabIndex>=(sint)_Buttons.size())
 			return;
 
diff --git a/code/nel/src/gui/interface_parser.cpp b/code/nel/src/gui/interface_parser.cpp
index 739e807c8..068d827bf 100644
--- a/code/nel/src/gui/interface_parser.cpp
+++ b/code/nel/src/gui/interface_parser.cpp
@@ -193,7 +193,7 @@ namespace NLGUI
 		xmlKeepBlanksDefault(0);
 		//parse all interface files and build a single xml document
 		xmlNodePtr globalEnclosing;
-		nlassert (strings.size());
+		nlassert (!strings.empty());
 		CIXml read;
 		string nextFileName;
 		static const char *SCRIPT_AS_STRING = "<script as string>";
diff --git a/code/nel/src/ligo/primitive.cpp b/code/nel/src/ligo/primitive.cpp
index ba9b69435..3fc97fdf5 100644
--- a/code/nel/src/ligo/primitive.cpp
+++ b/code/nel/src/ligo/primitive.cpp
@@ -1218,7 +1218,7 @@ const	IPrimitive	*IPrimitive::getPrimitive	(const	std::string	&absoluteOrRelativ
 		path.erase(0,2);
 	}
 
-	while (path.size()>0)
+	while (!path.empty())
 	{
 		if	(path.find("/")==0)
 		{
diff --git a/code/nel/src/misc/cdb_branch.cpp b/code/nel/src/misc/cdb_branch.cpp
index 627c1f38b..55b36a645 100644
--- a/code/nel/src/misc/cdb_branch.cpp
+++ b/code/nel/src/misc/cdb_branch.cpp
@@ -278,7 +278,7 @@ ICDBNode * CCDBNodeBranch::getNode (const CTextId& id, bool bCreate)
 		{
 			// Yoyo: must not be SERVER or LOCAL, cause definied through xml.
 			// This may cause some important crash error
-			//nlassert(id.size()>0);
+			//nlassert(!id.empty());
 			//nlassert(id.getElement(0)!="SERVER");
 			//nlassert(id.getElement(0)!="LOCAL");
 			ICDBNode *newNode;
diff --git a/code/nel/src/misc/polygon.cpp b/code/nel/src/misc/polygon.cpp
index b541d2eba..9388dbd45 100644
--- a/code/nel/src/misc/polygon.cpp
+++ b/code/nel/src/misc/polygon.cpp
@@ -105,7 +105,7 @@ void			CPolygon::clip(const CPlane	 *planes, uint nPlanes)
 // ***************************************************************************
 void			CPolygon::clip(const std::vector<CPlane> &planes)
 {
-	if(planes.size()==0)
+	if(planes.empty())
 		return;
 	clip(&(*planes.begin()), (uint)planes.size());
 }
diff --git a/code/nel/src/misc/system_utils.cpp b/code/nel/src/misc/system_utils.cpp
index de23db001..32fed9344 100644
--- a/code/nel/src/misc/system_utils.cpp
+++ b/code/nel/src/misc/system_utils.cpp
@@ -139,7 +139,7 @@ bool CSystemUtils::updateProgressBar(uint value, uint total)
 
 bool CSystemUtils::copyTextToClipboard(const ucstring &text)
 {
-	if (!text.size()) return false;
+	if (text.empty()) return false;
 
 	bool res = false;
 
diff --git a/code/nel/src/net/admin.cpp b/code/nel/src/net/admin.cpp
index 72794dd0f..89981a697 100644
--- a/code/nel/src/net/admin.cpp
+++ b/code/nel/src/net/admin.cpp
@@ -430,7 +430,7 @@ void serviceGetView (uint32 rid, const string &rawvarpath, TAdminViewResult &ans
 			else
 			{
 
-				if (strs.size()>0)
+				if (!strs.empty())
 				{
 					str = strs[0].substr(0,strs[0].size()-1);
 					// replace all spaces into udnerscore because space is a reserved char
@@ -717,7 +717,7 @@ void updateAdmin()
 			ICommand::execute(Alarms[i].Name, logDisplayVars, true, false);
 			const std::deque<std::string>	&strs = mdDisplayVars.lockStrings();
 
-			if (strs.size()>0)
+			if (!strs.empty())
 			{
 				str = strs[0].substr(0,strs[0].size()-1);
 			}
diff --git a/code/nel/src/net/buf_sock.cpp b/code/nel/src/net/buf_sock.cpp
index 8535435b0..c419e1aa2 100644
--- a/code/nel/src/net/buf_sock.cpp
+++ b/code/nel/src/net/buf_sock.cpp
@@ -155,7 +155,7 @@ bool CBufSock::flush( uint *nbBytesRemaining )
 		{
 			SendFifo.front( tmpbuffer, size );
 		}
-		while ( ! SendFifo.empty() && ( (_ReadyToSendBuffer.size()==0) || (_ReadyToSendBuffer.size() +size < MaxTCPPacketSize) ) )
+		while ( ! SendFifo.empty() && ( _ReadyToSendBuffer.empty() || (_ReadyToSendBuffer.size() +size < MaxTCPPacketSize) ) )
 		{
 			// Compute the size and add it into the beginning of the buffer
 			netlen = htonl( (TBlockSize)size );
@@ -252,7 +252,7 @@ bool CBufSock::flush( uint *nbBytesRemaining )
 		}
 
 	}
-	while ( !SendFifo.empty() && _ReadyToSendBuffer.size()==0 );
+	while ( !SendFifo.empty() && _ReadyToSendBuffer.empty() );
 
 	return true;
 }
diff --git a/code/nel/src/net/login_client.cpp b/code/nel/src/net/login_client.cpp
index 2e729f8ec..71ffc6825 100644
--- a/code/nel/src/net/login_client.cpp
+++ b/code/nel/src/net/login_client.cpp
@@ -288,7 +288,7 @@ string CLoginClient::confirmConnection(sint32 shardId)
 	// S05: create and send the "CS" message with the shardid choice to the LS
 	//
 	
-	if (!ShardList.size())
+	if (ShardList.empty())
 	{
 		_LSCallbackClient->disconnect();
 		return "No shard available";
@@ -358,7 +358,7 @@ string CLoginClient::selectShardBegin(sint32 shardId)
 	ShardChooseShardReason = "";
 	ShardChooseShard = false;
 
-	if (!ShardList.size())
+	if (ShardList.empty())
 	{
 		_LSCallbackClient->disconnect();
 		delete _LSCallbackClient;
diff --git a/code/nel/src/net/naming_client.cpp b/code/nel/src/net/naming_client.cpp
index 2cc89300a..a54fddaa0 100644
--- a/code/nel/src/net/naming_client.cpp
+++ b/code/nel/src/net/naming_client.cpp
@@ -420,7 +420,7 @@ bool CNamingClient::lookup (const std::string &name, CInetAddress &addr)
 	vector<CInetAddress> addrs;
 	find (name, addrs);
 
-	if (addrs.size()==0)
+	if (addrs.empty())
 		return false;
 
 	nlassert (addrs.size()==1);
@@ -436,7 +436,7 @@ bool CNamingClient::lookup (TServiceId sid, CInetAddress &addr)
 	vector<CInetAddress> addrs;
 	find (sid, addrs);
 
-	if (addrs.size()==0)
+	if (addrs.empty())
 		return false;
 
 	nlassert (addrs.size()==1);
@@ -465,7 +465,7 @@ bool CNamingClient::lookupAlternate (const std::string &name, CInetAddress &addr
 	vector<CInetAddress> addrs;
 	find (name, addrs);
 
-	if (addrs.size()==0)
+	if (addrs.empty())
 		return false;
 
 	nlassert (addrs.size()==1);
diff --git a/code/nel/src/net/service.cpp b/code/nel/src/net/service.cpp
index e2db26bd5..989f94d81 100644
--- a/code/nel/src/net/service.cpp
+++ b/code/nel/src/net/service.cpp
@@ -1460,7 +1460,7 @@ sint IService::main (const char *serviceShortName, const char *serviceLongName,
 						mdDisplayVars.clear ();
 						ICommand::execute(varName, logDisplayVars, true);
 						const std::deque<std::string>	&strs = mdDisplayVars.lockStrings();
-						if (strs.size()>0)
+						if (!strs.empty())
 						{
 							str += strs[0].substr(0,strs[0].size()-1);
 						}
diff --git a/code/nel/src/sound/driver/openal/sound_driver_al.cpp b/code/nel/src/sound/driver/openal/sound_driver_al.cpp
index 4aa358062..ab9574483 100644
--- a/code/nel/src/sound/driver/openal/sound_driver_al.cpp
+++ b/code/nel/src/sound/driver/openal/sound_driver_al.cpp
@@ -197,7 +197,7 @@ CSoundDriverAL::~CSoundDriverAL()
 	
 	// Remove the allocated (but not exported) source and buffer names-
 	// Release internal resources of all remaining ISource instances
-	if (_Sources.size())
+	if (!_Sources.empty())
 	{
 		nlwarning("AL: _Sources.size(): '%u'", (uint32)_Sources.size());
 		set<CSourceAL *>::iterator it(_Sources.begin()), end(_Sources.end());
@@ -206,7 +206,7 @@ CSoundDriverAL::~CSoundDriverAL()
 	}
 	if (!_Buffers.empty()) alDeleteBuffers(compactAliveNames(_Buffers, alIsBuffer), &*_Buffers.begin());	
 	// Release internal resources of all remaining IEffect instances
-	if (_Effects.size())
+	if (!_Effects.empty())
 	{
 		nlwarning("AL: _Effects.size(): '%u'", (uint32)_Effects.size());
 		set<CEffectAL *>::iterator it(_Effects.begin()), end(_Effects.end());
diff --git a/code/nel/src/sound/driver/openal/source_al.cpp b/code/nel/src/sound/driver/openal/source_al.cpp
index 1f8d2219f..c13db52af 100644
--- a/code/nel/src/sound/driver/openal/source_al.cpp
+++ b/code/nel/src/sound/driver/openal/source_al.cpp
@@ -254,7 +254,7 @@ bool CSourceAL::play()
 		if (!_IsPlaying) // set start time if not playing yet
 			_StartTime = CTime::getLocalTime();
 		_IsPlaying = true; // this play always virtually succeed but may not actually be playing
-		if (_QueuedBuffers.size()) // ensure buffers have actually queued
+		if (!_QueuedBuffers.empty()) // ensure buffers have actually queued
 		{
 			alSourcePlay(_Source);
 			if (alGetError() != AL_NO_ERROR)
@@ -306,7 +306,7 @@ void CSourceAL::stop()
 		alSourceStop(_Source);
 		alTestError();
 		// unqueue buffers
-		while (_QueuedBuffers.size())
+		while (!_QueuedBuffers.empty())
 		{
 			ALuint bufferName = _QueuedBuffers.front()->bufferName();
 			alSourceUnqueueBuffers(_Source, 1, &bufferName);
diff --git a/code/nel/src/sound/driver/xaudio2/sound_driver_xaudio2.cpp b/code/nel/src/sound/driver/xaudio2/sound_driver_xaudio2.cpp
index d15f2f6aa..529954006 100644
--- a/code/nel/src/sound/driver/xaudio2/sound_driver_xaudio2.cpp
+++ b/code/nel/src/sound/driver/xaudio2/sound_driver_xaudio2.cpp
@@ -215,7 +215,7 @@ void CSoundDriverXAudio2::release()
 	// the created instances must still be released by the user!
 
 	// Release internal resources of all remaining ISource instances
-	if (_Sources.size())
+	if (!_Sources.empty())
 	{
 		nlwarning(NLSOUND_XAUDIO2_PREFIX "_Sources.size(): '%u'", (uint32)_Sources.size());
 		set<CSourceXAudio2 *>::iterator it(_Sources.begin()), end(_Sources.end());
@@ -223,7 +223,7 @@ void CSoundDriverXAudio2::release()
 		_Sources.clear();
 	}
 	// Release internal resources of all remaining IBuffer instances
-	if (_Buffers.size())
+	if (!_Buffers.empty())
 	{
 		nlwarning(NLSOUND_XAUDIO2_PREFIX "_Buffers.size(): '%u'", (uint32)_Buffers.size());
 		set<CBufferXAudio2 *>::iterator it(_Buffers.begin()), end(_Buffers.end());
@@ -231,7 +231,7 @@ void CSoundDriverXAudio2::release()
 		_Buffers.clear();
 	}
 	// Release internal resources of all remaining IEffect instances
-	if (_Effects.size())
+	if (!_Effects.empty())
 	{
 		nlwarning(NLSOUND_XAUDIO2_PREFIX "_Effects.size(): '%u'", (uint32)_Effects.size());
 		set<CEffectXAudio2 *>::iterator it(_Effects.begin()), end(_Effects.end());
diff --git a/code/ryzom/client/src/commands.cpp b/code/ryzom/client/src/commands.cpp
index 59c2c9fa6..87e052cec 100644
--- a/code/ryzom/client/src/commands.cpp
+++ b/code/ryzom/client/src/commands.cpp
@@ -672,7 +672,7 @@ NLMISC_COMMAND(bugReport, "Call the bug report tool with dump", "<AddScreenshot>
 
 	sys = "Language "+CI18N::getCurrentLanguageName().toString() +" ";
 
-	if (args.size()>0)
+	if (!args.empty())
 	{
 		uint8 quality;
 		fromString(args[0], quality);
@@ -1205,9 +1205,9 @@ static bool talkInChan(uint32 nb,std::vector<std::string>args)
 	{
 		return false;
 	}
-	if(args.size()>0)
+	if(!args.empty())
 	{
-		std::string tmp="";
+		std::string tmp;
 		std::vector<std::string>::const_iterator first(args.begin()),last(args.end());
 
 		for(;first!=last;++first)
diff --git a/code/ryzom/client/src/interface_v3/action_handler_help.cpp b/code/ryzom/client/src/interface_v3/action_handler_help.cpp
index 072d53591..dbd6d6ac1 100644
--- a/code/ryzom/client/src/interface_v3/action_handler_help.cpp
+++ b/code/ryzom/client/src/interface_v3/action_handler_help.cpp
@@ -1604,7 +1604,7 @@ void	getMagicBonus(CDBCtrlSheet *item, ucstring &itemText)
 	}
 
 	// append a \n before
-	if(mbInfo.size())
+	if(!mbInfo.empty())
 	{
 		// add spell level header
 		ucstring	spellRuleFmt= CI18N::get("uihelpItemMagicBonusHeader");
diff --git a/code/ryzom/client/src/interface_v3/action_phrase_faber.cpp b/code/ryzom/client/src/interface_v3/action_phrase_faber.cpp
index a1506bd8b..d872f4553 100644
--- a/code/ryzom/client/src/interface_v3/action_phrase_faber.cpp
+++ b/code/ryzom/client/src/interface_v3/action_phrase_faber.cpp
@@ -105,7 +105,8 @@ void		CActionPhraseFaber::launchFaberCastWindow(sint32 memoryLine, uint memoryIn
 
 	// get the family of item plan (for selection) from the rootBrick. It is stored in the Property0.
 	_FaberPlanBrickFamilies.clear();
-	if(rootBrick->Properties.size()>0)
+
+	if (!rootBrick->Properties.empty())
 	{
 		string prop= NLMISC::toUpper(rootBrick->Properties[0].Text);
 		vector<string>	strList;
diff --git a/code/ryzom/client/src/interface_v3/dbctrl_sheet.cpp b/code/ryzom/client/src/interface_v3/dbctrl_sheet.cpp
index 423571000..abd85de83 100644
--- a/code/ryzom/client/src/interface_v3/dbctrl_sheet.cpp
+++ b/code/ryzom/client/src/interface_v3/dbctrl_sheet.cpp
@@ -639,8 +639,8 @@ void CDBCtrlSheet::initSheet(const std::string &dbBranchId, const CCtrlSheetInfo
 {
 	H_AUTO ( RZ_CDBCtrlSheet_initSheet )
 
-	nlassert((ctrlInfo._Type == SheetType_Macro) || (dbBranchId.size()>0));
-	nlassert((ctrlInfo._Type == SheetType_Macro) || (_Id.size()>0));
+	nlassert((ctrlInfo._Type == SheetType_Macro) || !dbBranchId.empty());
+	nlassert((ctrlInfo._Type == SheetType_Macro) || !_Id.empty());
 
 	// init
 	*static_cast<CCtrlSheetInfo*>(this)= ctrlInfo;
diff --git a/code/ryzom/client/src/interface_v3/group_map.cpp b/code/ryzom/client/src/interface_v3/group_map.cpp
index 667e900c4..6e1022e76 100644
--- a/code/ryzom/client/src/interface_v3/group_map.cpp
+++ b/code/ryzom/client/src/interface_v3/group_map.cpp
@@ -3021,7 +3021,7 @@ void CGroupMap::addRespawnPoints(const CRespawnPointsMsg &rpm)
 	for (uint32 i = 0; i < rpm.RespawnPoints.size(); ++i)
 		_RespawnPos.push_back(rpm.RespawnPoints[i]);
 	// Ensure there is at least one respawn point
-//	nlassert(_RespawnPos.size()>0);
+//	nlassert(!_RespawnPos.empty());
 
 	// Choose the good map ! (select the first respawn point and check for first matching bounding box map
 	if (_MapMode != MapMode_Death) return;
diff --git a/code/ryzom/client/src/interface_v3/interface_manager.cpp b/code/ryzom/client/src/interface_v3/interface_manager.cpp
index fab67d55e..2ff42b7e9 100644
--- a/code/ryzom/client/src/interface_v3/interface_manager.cpp
+++ b/code/ryzom/client/src/interface_v3/interface_manager.cpp
@@ -643,7 +643,7 @@ void CInterfaceManager::initLogin()
 	ActionsContext.addActionsManager(&EditActions, RZ_CATEGORY_EDIT);
 
 
-	if (ClientCfg.XMLLoginInterfaceFiles.size()==0)
+	if (ClientCfg.XMLLoginInterfaceFiles.empty())
 	{
 		nlinfo("no xml login config files in client.cfg");
 		return;
@@ -729,7 +729,7 @@ void CInterfaceManager::initOutGame()
 
 	//NLMEMORY::CheckHeap (true);
 
-	if (ClientCfg.XMLOutGameInterfaceFiles.size()==0)
+	if (ClientCfg.XMLOutGameInterfaceFiles.empty())
 	{
 		nlinfo("no xml outgame config files in client.cfg");
 		return;
@@ -889,7 +889,7 @@ void CInterfaceManager::initInGame()
 
 //	NLMEMORY::CheckHeap (true);
 
-	if (ClientCfg.XMLInterfaceFiles.size()==0)
+	if (ClientCfg.XMLInterfaceFiles.empty())
 	{
 		nlinfo("no xml config files in client.cfg");
 		return;
diff --git a/code/ryzom/client/src/interface_v3/sphrase_manager.cpp b/code/ryzom/client/src/interface_v3/sphrase_manager.cpp
index 0b96f77a3..09cc9b3fe 100644
--- a/code/ryzom/client/src/interface_v3/sphrase_manager.cpp
+++ b/code/ryzom/client/src/interface_v3/sphrase_manager.cpp
@@ -1346,7 +1346,7 @@ sint				CSPhraseManager::getPhraseSuccessRate(const CSPhraseCom &phrase)
 	CSBrickManager	*pBM= CSBrickManager::getInstance();
 	CSkillManager	*pSM= CSkillManager::getInstance();
 
-	if(phrase.Bricks.size()==0)
+	if(phrase.Bricks.empty())
 		return 0;
 	CSBrickSheet	*rootBrick= pBM->getBrick(phrase.Bricks[0]);
 	if(!rootBrick)
@@ -1432,7 +1432,7 @@ sint				CSPhraseManager::getCraftPhraseSuccessRate(const CSPhraseCom &phrase, SK
 {
 	CSkillManager	*pSM= CSkillManager::getInstance();
 
-	if(phrase.Bricks.size()==0)
+	if(phrase.Bricks.empty())
 		return 0;
 
 	// take skill value of the skill
@@ -1450,7 +1450,7 @@ sint				CSPhraseManager::getForageExtractionPhraseSuccessRate(const CSPhraseCom
 {
 	CSkillManager	*pSM= CSkillManager::getInstance();
 
-	if(phrase.Bricks.size()==0)
+	if(phrase.Bricks.empty())
 		return 0;
 
 	// take skill value of the skill
@@ -1505,7 +1505,7 @@ void				CSPhraseManager::getPhraseCastTime(const CSPhraseCom &phrase, uint32 tot
 	castTime= 0;
 	castTimeMalus= 0;
 
-	if(phrase.Bricks.size()==0)
+	if(phrase.Bricks.empty())
 		return;
 	CSBrickSheet	*rootBrick= pBM->getBrick(phrase.Bricks[0]);
 	if(!rootBrick)
@@ -1576,7 +1576,7 @@ void				CSPhraseManager::getPhraseMagicRange(const CSPhraseCom &phrase, uint32 t
 	range= 0;
 	rangeMalus= 0;
 
-	if(phrase.Bricks.size()==0)
+	if(phrase.Bricks.empty())
 		return;
 	CSBrickSheet	*rootBrick= pBM->getBrick(phrase.Bricks[0]);
 	if(!rootBrick)
diff --git a/code/ryzom/client/src/login.cpp b/code/ryzom/client/src/login.cpp
index 944a212e0..d29306202 100644
--- a/code/ryzom/client/src/login.cpp
+++ b/code/ryzom/client/src/login.cpp
@@ -978,7 +978,7 @@ bool login()
 void removeSpace(string &s)
 {
 	uint i = 0;
-	while (s.size()>0)
+	while (!s.empty())
 	{
 		if (s[i] == ' ')
 			s.erase(i, 1);
diff --git a/code/ryzom/client/src/login_patch.h b/code/ryzom/client/src/login_patch.h
index 9407290e9..1de6f03f0 100644
--- a/code/ryzom/client/src/login_patch.h
+++ b/code/ryzom/client/src/login_patch.h
@@ -370,7 +370,7 @@ private:
 			ServerPath = serverPath;
 			Available = true;
 
-			if (ServerPath.size()>0 && ServerPath[ServerPath.size()-1] != '/')
+			if (!ServerPath.empty() && ServerPath[ServerPath.size()-1] != '/')
 				ServerPath += '/';
 
 			std::string::size_type pos = ServerPath.find ("@");
diff --git a/code/ryzom/client/src/movie_shooter.cpp b/code/ryzom/client/src/movie_shooter.cpp
index 27d26874e..0bf6015bf 100644
--- a/code/ryzom/client/src/movie_shooter.cpp
+++ b/code/ryzom/client/src/movie_shooter.cpp
@@ -111,7 +111,7 @@ bool				CMovieShooter::addFrame(double time, UDriver	*pDriver)
 	nlassert(bitmap.getPixelFormat()==CBitmap::RGBA);
 
 	// add the frame.
-	if(bitmap.getPixels().size()==0)
+	if(bitmap.getPixels().empty())
 		return false;
 	return addFrame(time, (CRGBA*)(&bitmap.getPixels()[0]), bitmap.getWidth(), bitmap.getHeight());
 }
diff --git a/code/ryzom/client/src/net_manager.cpp b/code/ryzom/client/src/net_manager.cpp
index ead456a81..0e9f09747 100644
--- a/code/ryzom/client/src/net_manager.cpp
+++ b/code/ryzom/client/src/net_manager.cpp
@@ -2499,7 +2499,7 @@ void impulseRemoteAdmin (NLMISC::CBitMemStream &impulse)
 	}
 	else
 	{
-		if (strs.size()>0)
+		if (!strs.empty())
 		{
 			str = strs[0].substr(0,strs[0].size()-1);
 			// replace all spaces into underscore because space is a reserved char
diff --git a/code/ryzom/client/src/r2/editor.cpp b/code/ryzom/client/src/r2/editor.cpp
index 337e77828..93acc1d98 100644
--- a/code/ryzom/client/src/r2/editor.cpp
+++ b/code/ryzom/client/src/r2/editor.cpp
@@ -5808,7 +5808,7 @@ void CEditor::scenarioUpdated(CObject* highLevel, bool willTP, uint32 initialAct
 				playerPos.y <= ci.YMin ||
 				playerPos.y >= ci.YMax)
 			{
-				if(ci.EntryPoints.size()>0)
+				if(!ci.EntryPoints.empty())
 				{
 					const CScenarioEntryPoints::CShortEntryPoint & shortEntryPoint = ci.EntryPoints[0];
 					CVector dest((float) shortEntryPoint.X, (float) shortEntryPoint.Y, 0.f);
diff --git a/code/ryzom/client/src/r2/tool_pick.cpp b/code/ryzom/client/src/r2/tool_pick.cpp
index 62b99eb26..cca373162 100644
--- a/code/ryzom/client/src/r2/tool_pick.cpp
+++ b/code/ryzom/client/src/r2/tool_pick.cpp
@@ -63,14 +63,14 @@ void CToolPick::setIgnoreInstances(const std::string & ignoreInstances)
 			allKind = allKind.substr(e+1,allKind.size());
 		}
 
-		while(tmp.size()>0 && tmp[0]==' ')
+		while(!tmp.empty() && tmp[0]==' ')
 		{
 			if(tmp.size()==1)
 				tmp="";
 			else
 				tmp = tmp.substr(1,tmp.size());
 		}
-		while(tmp.size()>0 && tmp[tmp.size()]==' ')
+		while(!tmp.empty() && tmp[tmp.size()]==' ')
 		{
 			if(tmp.size()==1)
 				tmp="";
@@ -98,7 +98,7 @@ void CToolPick::updateAfterRender()
 	_CandidateInstance = NULL;
 	CInstance *instanceUnder = checkInstanceUnderMouse();
 	bool ignoreInstanceUnder = false;
-	if(instanceUnder && _IgnoreInstances.size()>0)
+	if(instanceUnder && !_IgnoreInstances.empty())
 	{
 		for(uint i=0; i<_IgnoreInstances.size(); i++)
 		{
diff --git a/code/ryzom/common/src/game_share/scenario_entry_points.cpp b/code/ryzom/common/src/game_share/scenario_entry_points.cpp
index e97adb84c..51e3c56c3 100644
--- a/code/ryzom/common/src/game_share/scenario_entry_points.cpp
+++ b/code/ryzom/common/src/game_share/scenario_entry_points.cpp
@@ -425,7 +425,7 @@ void CScenarioEntryPoints::loadFromXMLFile()
 			}
 
 
-			if(entryPoints.size()>0)
+			if(!entryPoints.empty())
 			{
 				completeIsland.EntryPoints = entryPoints;
 				_CompleteIslands.push_back(completeIsland);