Apply modernize-use-emplace clang-tidy rule

code/AssetLib/3DS/3DSLoader.cpp

@@ -319,7 +319,7 @@ void Discreet3DSImporter::ParseObjectChunk() {
     case Discreet3DS::CHUNK_MAT_MATERIAL:
 
         // Add a new material to the list
-        mScene->mMaterials.push_back(D3DS::Material(std::string("UNNAMED_" + ai_to_string(mScene->mMaterials.size()))));
+        mScene->mMaterials.emplace_back(std::string("UNNAMED_" + ai_to_string(mScene->mMaterials.size())));
         ParseMaterialChunk();
         break;
 
@@ -370,7 +370,7 @@ void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
     switch (chunk.Flag) {
     case Discreet3DS::CHUNK_TRIMESH: {
         // this starts a new triangle mesh
-        mScene->mMeshes.push_back(D3DS::Mesh(std::string(name, num)));
+        mScene->mMeshes.emplace_back(std::string(name, num));
 
         // Read mesh chunks
         ParseMeshChunk();
@@ -999,7 +999,7 @@ void Discreet3DSImporter::ParseMeshChunk() {
         mMesh.mFaces.reserve(num);
         while (num-- > 0) {
             // 3DS faces are ALWAYS triangles
-            mMesh.mFaces.push_back(D3DS::Face());
+            mMesh.mFaces.emplace_back();
             D3DS::Face &sFace = mMesh.mFaces.back();
 
             sFace.mIndices[0] = (uint16_t)stream->GetI2();

code/AssetLib/AC/ACLoader.cpp

@@ -180,7 +180,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
 
     ++mNumMeshes;
 
-    objects.push_back(Object());
+    objects.emplace_back();
     Object &obj = objects.back();
 
     aiLight *light = nullptr;
@@ -267,7 +267,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                     --buffer; // make sure the line is processed a second time
                     break;
                 }
-                obj.vertices.push_back(aiVector3D());
+                obj.vertices.emplace_back();
                 aiVector3D &v = obj.vertices.back();
                 buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &v.x);
             }
@@ -293,7 +293,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                     Q3DWorkAround = true;
                 }
                 SkipSpaces(&buffer);
-                obj.surfaces.push_back(Surface());
+                obj.surfaces.emplace_back();
                 Surface &surf = obj.surfaces.back();
                 surf.flags = strtoul_cppstyle(buffer);
 
@@ -324,7 +324,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                                 ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: surface references are incomplete");
                                 break;
                             }
-                            surf.entries.push_back(Surface::SurfaceEntry());
+                            surf.entries.emplace_back();
                             Surface::SurfaceEntry &entry = surf.entries.back();
 
                             entry.first = strtoul10(buffer, &buffer);
@@ -786,7 +786,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
 
     while (GetNextLine()) {
         if (TokenMatch(buffer, "MATERIAL", 8)) {
-            materials.push_back(Material());
+            materials.emplace_back();
             Material &mat = materials.back();
 
             // manually parse the material ... sscanf would use the buldin atof ...
@@ -813,7 +813,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     }
     if (materials.empty()) {
         ASSIMP_LOG_WARN("AC3D: No material has been found");
-        materials.push_back(Material());
+        materials.emplace_back();
     }
 
     mNumMeshes += (mNumMeshes >> 2u) + 1;

code/AssetLib/ASE/ASELoader.cpp

@@ -265,7 +265,7 @@ void ASEImporter::GenerateDefaultMaterial() {
     }
     if (bHas || mParser->m_vMaterials.empty()) {
         // add a simple material without submaterials to the parser's list
-        mParser->m_vMaterials.push_back(ASE::Material(AI_DEFAULT_MATERIAL_NAME));
+        mParser->m_vMaterials.emplace_back(AI_DEFAULT_MATERIAL_NAME);
         ASE::Material &mat = mParser->m_vMaterials.back();
 
         mat.mDiffuse = aiColor3D(0.6f, 0.6f, 0.6f);
@@ -1005,8 +1005,8 @@ void ASEImporter::ConvertMeshes(ASE::Mesh &mesh, std::vector<aiMesh *> &avOutMes
                                             blubb != mesh.mBoneVertices[iIndex2].mBoneWeights.end(); ++blubb) {
 
                                         // NOTE: illegal cases have already been filtered out
-                                        avOutputBones[(*blubb).first].push_back(std::pair<unsigned int, float>(
-                                                iBase, (*blubb).second));
+                                        avOutputBones[(*blubb).first].emplace_back(
+                                                iBase, (*blubb).second);
                                     }
                                 }
                             }

code/AssetLib/ASE/ASEParser.cpp

@@ -264,7 +264,7 @@ void Parser::Parse() {
             if (TokenMatch(filePtr, "GEOMOBJECT", 10))
 
             {
-                m_vMeshes.push_back(Mesh("UNNAMED"));
+                m_vMeshes.emplace_back("UNNAMED");
                 ParseLV1ObjectBlock(m_vMeshes.back());
                 continue;
             }
@@ -272,7 +272,7 @@ void Parser::Parse() {
             if (TokenMatch(filePtr, "HELPEROBJECT", 12))
 
             {
-                m_vDummies.push_back(Dummy());
+                m_vDummies.emplace_back();
                 ParseLV1ObjectBlock(m_vDummies.back());
                 continue;
             }
@@ -280,13 +280,13 @@ void Parser::Parse() {
             if (TokenMatch(filePtr, "LIGHTOBJECT", 11))
 
             {
-                m_vLights.push_back(Light("UNNAMED"));
+                m_vLights.emplace_back("UNNAMED");
                 ParseLV1ObjectBlock(m_vLights.back());
                 continue;
             }
             // camera object
             if (TokenMatch(filePtr, "CAMERAOBJECT", 12)) {
-                m_vCameras.push_back(Camera("UNNAMED"));
+                m_vCameras.emplace_back("UNNAMED");
                 ParseLV1ObjectBlock(m_vCameras.back());
                 continue;
             }
@@ -385,7 +385,7 @@ void Parser::ParseLV1SoftSkinBlock() {
                         unsigned int numWeights;
                         ParseLV4MeshLong(numWeights);
 
-                        curMesh->mBoneVertices.push_back(ASE::BoneVertex());
+                        curMesh->mBoneVertices.emplace_back();
                         ASE::BoneVertex &vert = curMesh->mBoneVertices.back();
 
                         // Reserve enough storage
@@ -409,7 +409,7 @@ void Parser::ParseLV1SoftSkinBlock() {
                             if (-1 == me.first) {
                                 // We don't have this bone yet, so add it to the list
                                 me.first = static_cast<int>(curMesh->mBones.size());
-                                curMesh->mBones.push_back(ASE::Bone(bone));
+                                curMesh->mBones.emplace_back(bone);
                             }
                             ParseLV4MeshFloat(me.second);
 
@@ -1011,7 +1011,7 @@ void Parser::ParseLV3ScaleAnimationBlock(ASE::Animation &anim) {
                 anim.mScalingType = ASE::Animation::TCB;
             }
             if (b) {
-                anim.akeyScaling.push_back(aiVectorKey());
+                anim.akeyScaling.emplace_back();
                 aiVectorKey &key = anim.akeyScaling.back();
                 ParseLV4MeshFloatTriple(&key.mValue.x, iIndex);
                 key.mTime = (double)iIndex;
@@ -1050,7 +1050,7 @@ void Parser::ParseLV3PosAnimationBlock(ASE::Animation &anim) {
                 anim.mPositionType = ASE::Animation::TCB;
             }
             if (b) {
-                anim.akeyPositions.push_back(aiVectorKey());
+                anim.akeyPositions.emplace_back();
                 aiVectorKey &key = anim.akeyPositions.back();
                 ParseLV4MeshFloatTriple(&key.mValue.x, iIndex);
                 key.mTime = (double)iIndex;
@@ -1089,7 +1089,7 @@ void Parser::ParseLV3RotAnimationBlock(ASE::Animation &anim) {
                 anim.mRotationType = ASE::Animation::TCB;
             }
             if (b) {
-                anim.akeyRotations.push_back(aiQuatKey());
+                anim.akeyRotations.emplace_back();
                 aiQuatKey &key = anim.akeyRotations.back();
                 aiVector3D v;
                 ai_real f;

code/AssetLib/Assjson/mesh_splitter.cpp

@@ -304,7 +304,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 		}
 
 		// add the newly created mesh to the list
-		source_mesh_map.push_back(std::make_pair(out_mesh,a));
+		source_mesh_map.emplace_back(out_mesh,a);
 
 		if (base == in_mesh->mNumFaces) {
 			break;

code/AssetLib/B3D/B3DImporter.cpp

@@ -479,13 +479,13 @@ void B3DImporter::ReadKEYS(aiNodeAnim *nodeAnim) {
     while (ChunkSize()) {
         int frame = ReadInt();
         if (flags & 1) {
-            trans.push_back(aiVectorKey(frame, ReadVec3()));
+            trans.emplace_back(frame, ReadVec3());
         }
         if (flags & 2) {
-            scale.push_back(aiVectorKey(frame, ReadVec3()));
+            scale.emplace_back(frame, ReadVec3());
         }
         if (flags & 4) {
-            rot.push_back(aiQuatKey(frame, ReadQuat()));
+            rot.emplace_back(frame, ReadQuat());
         }
     }
 

code/AssetLib/BVH/BVHLoader.cpp

@@ -186,7 +186,7 @@ aiNode *BVHLoader::ReadNode() {
     std::vector<aiNode *> childNodes;
 
     // and create an bone entry for it
-    mNodes.push_back(Node(node));
+    mNodes.emplace_back(node);
     Node &internNode = mNodes.back();
 
     // now read the node's contents

code/AssetLib/COB/COBLoader.cpp

@@ -753,7 +753,7 @@ void COBImporter::ReadPolH_Ascii(Scene &out, LineSplitter &splitter, const Chunk
                     ThrowException("Expected Face line");
                 }
 
-                msh.faces.push_back(Face());
+                msh.faces.emplace_back();
                 Face &face = msh.faces.back();
 
                 face.indices.resize(strtoul10(splitter[2]));
@@ -956,7 +956,7 @@ void COBImporter::ReadPolH_Binary(COB::Scene &out, StreamReaderLE &reader, const
                 ThrowException(format("A hole is the first entity in the `PolH` chunk with id ") << nfo.id);
             }
         } else
-            msh.faces.push_back(Face());
+            msh.faces.emplace_back();
         Face &f = msh.faces.back();
 
         const size_t num = reader.GetI2();
@@ -968,7 +968,7 @@ void COBImporter::ReadPolH_Binary(COB::Scene &out, StreamReaderLE &reader, const
         }
 
         for (size_t x = 0; x < num; ++x) {
-            f.indices.push_back(VertexIndex());
+            f.indices.emplace_back();
 
             VertexIndex &v = f.indices.back();
             v.pos_idx = reader.GetI4();

code/AssetLib/Collada/ColladaExporter.cpp

@@ -1330,9 +1330,9 @@ void ColladaExporter::WriteAnimationLibrary(size_t pIndex) {
             std::vector<std::string> names;
             for (size_t i = 0; i < nodeAnim->mNumPositionKeys; ++i) {
                 if (nodeAnim->mPreState == aiAnimBehaviour_DEFAULT || nodeAnim->mPreState == aiAnimBehaviour_LINEAR || nodeAnim->mPreState == aiAnimBehaviour_REPEAT) {
-                    names.push_back("LINEAR");
+                    names.emplace_back("LINEAR");
                 } else if (nodeAnim->mPostState == aiAnimBehaviour_CONSTANT) {
-                    names.push_back("STEP");
+                    names.emplace_back("STEP");
                 }
             }
 

code/AssetLib/Collada/ColladaParser.cpp

@@ -1929,7 +1929,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
     switch (pInput.mType) {
     case IT_Position: // ignore all position streams except 0 - there can be only one position
         if (pInput.mIndex == 0) {
-            pMesh.mPositions.push_back(aiVector3D(obj[0], obj[1], obj[2]));
+            pMesh.mPositions.emplace_back(obj[0], obj[1], obj[2]);
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex position stream supported");
         }
@@ -1941,7 +1941,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
 
         // ignore all normal streams except 0 - there can be only one normal
         if (pInput.mIndex == 0) {
-            pMesh.mNormals.push_back(aiVector3D(obj[0], obj[1], obj[2]));
+            pMesh.mNormals.emplace_back(obj[0], obj[1], obj[2]);
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex normal stream supported");
         }
@@ -1953,7 +1953,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
 
         // ignore all tangent streams except 0 - there can be only one tangent
         if (pInput.mIndex == 0) {
-            pMesh.mTangents.push_back(aiVector3D(obj[0], obj[1], obj[2]));
+            pMesh.mTangents.emplace_back(obj[0], obj[1], obj[2]);
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex tangent stream supported");
         }
@@ -1966,7 +1966,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
 
         // ignore all bitangent streams except 0 - there can be only one bitangent
         if (pInput.mIndex == 0) {
-            pMesh.mBitangents.push_back(aiVector3D(obj[0], obj[1], obj[2]));
+            pMesh.mBitangents.emplace_back(obj[0], obj[1], obj[2]);
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex bitangent stream supported");
         }
@@ -1979,7 +1979,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
                 pMesh.mTexCoords[pInput.mIndex].insert(pMesh.mTexCoords[pInput.mIndex].end(),
                         pMesh.mPositions.size() - pMesh.mTexCoords[pInput.mIndex].size() - 1, aiVector3D(0, 0, 0));
 
-            pMesh.mTexCoords[pInput.mIndex].push_back(aiVector3D(obj[0], obj[1], obj[2]));
+            pMesh.mTexCoords[pInput.mIndex].emplace_back(obj[0], obj[1], obj[2]);
             if (0 != acc.mSubOffset[2] || 0 != acc.mSubOffset[3]) {
                 pMesh.mNumUVComponents[pInput.mIndex] = 3;
             }
@@ -2113,7 +2113,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                 if (s[0] != '#') {
                     ASSIMP_LOG_ERROR("Collada: Unresolved reference format of node");
                 } else {
-                    pNode->mNodeInstances.push_back(NodeInstance());
+                    pNode->mNodeInstances.emplace_back();
                     pNode->mNodeInstances.back().mNode = s.c_str() + 1;
                 }
             }
@@ -2129,7 +2129,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                     throw DeadlyImportError("Unknown reference format in <instance_light> element");
                 }
 
-                pNode->mLights.push_back(LightInstance());
+                pNode->mLights.emplace_back();
                 pNode->mLights.back().mLight = url.c_str() + 1;
             }
         } else if (currentName == "instance_camera") {
@@ -2140,7 +2140,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                 if (url[0] != '#') {
                     throw DeadlyImportError("Unknown reference format in <instance_camera> element");
                 }
-                pNode->mCameras.push_back(CameraInstance());
+                pNode->mCameras.emplace_back();
                 pNode->mCameras.back().mCamera = url.c_str() + 1;
             }
         }

code/AssetLib/DXF/DXFLoader.cpp

@@ -475,7 +475,7 @@ void DXFImporter::ParseBlocks(DXF::LineReader& reader, DXF::FileData& output) {
 // ------------------------------------------------------------------------------------------------
 void DXFImporter::ParseBlock(DXF::LineReader& reader, DXF::FileData& output) {
     // push a new block onto the stack.
-    output.blocks.push_back( DXF::Block() );
+    output.blocks.emplace_back( );
     DXF::Block& block = output.blocks.back();
 
     while( !reader.End() && !reader.Is(0,"ENDBLK")) {
@@ -520,7 +520,7 @@ void DXFImporter::ParseBlock(DXF::LineReader& reader, DXF::FileData& output) {
 // ------------------------------------------------------------------------------------------------
 void DXFImporter::ParseEntities(DXF::LineReader& reader, DXF::FileData& output) {
     // Push a new block onto the stack.
-    output.blocks.push_back( DXF::Block() );
+    output.blocks.emplace_back( );
     DXF::Block& block = output.blocks.back();
 
     block.name = AI_DXF_ENTITIES_MAGIC_BLOCK;
@@ -550,7 +550,7 @@ void DXFImporter::ParseEntities(DXF::LineReader& reader, DXF::FileData& output)
 }
 
 void DXFImporter::ParseInsertion(DXF::LineReader& reader, DXF::FileData& output) {
-    output.blocks.back().insertions.push_back( DXF::InsertBlock() );
+    output.blocks.back().insertions.emplace_back( );
     DXF::InsertBlock& bl = output.blocks.back().insertions.back();
 
     while( !reader.End() && !reader.Is(0)) {

code/AssetLib/FBX/FBXConverter.cpp

@@ -242,7 +242,7 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
             ai_assert(nodes_chain.size());
 
             if (need_additional_node) {
-                nodes_chain.emplace_back(PotentialNode(node_name));
+                nodes_chain.emplace_back(node_name);
             }
 
             //setup metadata on newest node

code/AssetLib/FBX/FBXParser.cpp

@@ -619,9 +619,9 @@ void ParseVectorDataArray(std::vector<aiVector3D>& out, const Element& el)
         if (type == 'd') {
             const double* d = reinterpret_cast<const double*>(&buff[0]);
             for (unsigned int i = 0; i < count3; ++i, d += 3) {
-                out.push_back(aiVector3D(static_cast<ai_real>(d[0]),
+                out.emplace_back(static_cast<ai_real>(d[0]),
                     static_cast<ai_real>(d[1]),
-                    static_cast<ai_real>(d[2])));
+                    static_cast<ai_real>(d[2]));
             }
             // for debugging
             /*for ( size_t i = 0; i < out.size(); i++ ) {
@@ -634,7 +634,7 @@ void ParseVectorDataArray(std::vector<aiVector3D>& out, const Element& el)
         else if (type == 'f') {
             const float* f = reinterpret_cast<const float*>(&buff[0]);
             for (unsigned int i = 0; i < count3; ++i, f += 3) {
-                out.push_back(aiVector3D(f[0],f[1],f[2]));
+                out.emplace_back(f[0],f[1],f[2]);
             }
         }
 
@@ -708,16 +708,16 @@ void ParseVectorDataArray(std::vector<aiColor4D>& out, const Element& el)
         if (type == 'd') {
             const double* d = reinterpret_cast<const double*>(&buff[0]);
             for (unsigned int i = 0; i < count4; ++i, d += 4) {
-                out.push_back(aiColor4D(static_cast<float>(d[0]),
+                out.emplace_back(static_cast<float>(d[0]),
                     static_cast<float>(d[1]),
                     static_cast<float>(d[2]),
-                    static_cast<float>(d[3])));
+                    static_cast<float>(d[3]));
             }
         }
         else if (type == 'f') {
             const float* f = reinterpret_cast<const float*>(&buff[0]);
             for (unsigned int i = 0; i < count4; ++i, f += 4) {
-                out.push_back(aiColor4D(f[0],f[1],f[2],f[3]));
+                out.emplace_back(f[0],f[1],f[2],f[3]);
             }
         }
         return;
@@ -789,13 +789,13 @@ void ParseVectorDataArray(std::vector<aiVector2D>& out, const Element& el) {
         if (type == 'd') {
             const double* d = reinterpret_cast<const double*>(&buff[0]);
             for (unsigned int i = 0; i < count2; ++i, d += 2) {
-                out.push_back(aiVector2D(static_cast<float>(d[0]),
-                    static_cast<float>(d[1])));
+                out.emplace_back(static_cast<float>(d[0]),
+                    static_cast<float>(d[1]));
             }
         } else if (type == 'f') {
             const float* f = reinterpret_cast<const float*>(&buff[0]);
             for (unsigned int i = 0; i < count2; ++i, f += 2) {
-                out.push_back(aiVector2D(f[0],f[1]));
+                out.emplace_back(f[0],f[1]);
             }
         }
 

code/AssetLib/IFC/IFCBoolean.cpp

@@ -310,7 +310,7 @@ bool IntersectsBoundaryProfile(const IfcVector3 &e0, const IfcVector3 &e1, const
                 if (IfcVector2(diff.x, diff.y).SquareLength() < 1e-10)
                     continue;
             }
-            intersect_results.push_back(std::make_pair(i, e0));
+            intersect_results.emplace_back(i, e0);
             continue;
         }
 
@@ -324,7 +324,7 @@ bool IntersectsBoundaryProfile(const IfcVector3 &e0, const IfcVector3 &e1, const
                 if (IfcVector2(diff.x, diff.y).SquareLength() < 1e-10)
                     continue;
             }
-            intersect_results.push_back(std::make_pair(i, p));
+            intersect_results.emplace_back(i, p);
         }
     }
 
@@ -504,7 +504,7 @@ void ProcessPolygonalBoundedBooleanHalfSpaceDifference(const Schema_2x3::IfcPoly
                 }
                 // now add them to the list of intersections
                 for (size_t b = 0; b < intersected_boundary.size(); ++b)
-                    intersections.push_back(std::make_tuple(a, proj_inv * intersected_boundary[b].second, intersected_boundary[b].first));
+                    intersections.emplace_back(a, proj_inv * intersected_boundary[b].second, intersected_boundary[b].first);
 
                 // and calculate our new inside/outside state
                 if (intersected_boundary.size() & 1)

code/AssetLib/IFC/IFCCurve.cpp

@@ -224,7 +224,7 @@ public:
                 IFCImporter::LogVerboseDebug("ignoring transition code on composite curve segment, only continuous transitions are supported");
             }
 
-            curves.push_back( CurveEntry(bc,IsTrue(curveSegment.SameSense)) );
+            curves.emplace_back(bc,IsTrue(curveSegment.SameSense) );
             total += bc->GetParametricRangeDelta();
         }
 

code/AssetLib/IFC/IFCGeometry.cpp

@@ -170,7 +170,7 @@ void ProcessPolygonBoundaries(TempMesh& result, const TempMesh& inmesh, size_t m
             continue;
         }
 
-        fake_openings.push_back(TempOpening());
+        fake_openings.emplace_back();
         TempOpening& opening = fake_openings.back();
 
         opening.extrusionDir = master_normal;
@@ -612,7 +612,7 @@ void ProcessExtrudedArea(const Schema_2x3::IfcExtrudedAreaSolid& solid, const Te
             TempMesh& bounds = *t.profileMesh.get();
 
             if( bounds.mVerts.size() <= 2 ) {
-                nors.push_back(IfcVector3());
+                nors.emplace_back();
                 continue;
             }
             auto nor = ((bounds.mVerts[2] - bounds.mVerts[0]) ^ (bounds.mVerts[1] - bounds.mVerts[0])).Normalize();

code/AssetLib/IFC/IFCOpenings.cpp

@@ -114,9 +114,9 @@ void QuadrifyPart(const IfcVector2& pmin, const IfcVector2& pmax, XYSortedField&
     if (!found) {
         // the rectangle [pmin,pend] is opaque, fill it
         out.push_back(pmin);
-        out.push_back(IfcVector2(pmin.x,pmax.y));
+        out.emplace_back(pmin.x,pmax.y);
         out.push_back(pmax);
-        out.push_back(IfcVector2(pmax.x,pmin.y));
+        out.emplace_back(pmax.x,pmin.y);
         return;
     }
 
@@ -126,9 +126,9 @@ void QuadrifyPart(const IfcVector2& pmin, const IfcVector2& pmax, XYSortedField&
     // see if there's an offset to fill at the top of our quad
     if (xs - pmin.x) {
         out.push_back(pmin);
-        out.push_back(IfcVector2(pmin.x,pmax.y));
-        out.push_back(IfcVector2(xs,pmax.y));
-        out.push_back(IfcVector2(xs,pmin.y));
+        out.emplace_back(pmin.x,pmax.y);
+        out.emplace_back(xs,pmax.y);
+        out.emplace_back(xs,pmin.y);
     }
 
     // search along the y-axis for all openings that overlap xs and our quad
@@ -159,10 +159,10 @@ void QuadrifyPart(const IfcVector2& pmin, const IfcVector2& pmax, XYSortedField&
     }
     if (!found) {
         // the rectangle [pmin,pend] is opaque, fill it
-        out.push_back(IfcVector2(xs,pmin.y));
-        out.push_back(IfcVector2(xs,pmax.y));
-        out.push_back(IfcVector2(xe,pmax.y));
-        out.push_back(IfcVector2(xe,pmin.y));
+        out.emplace_back(xs,pmin.y);
+        out.emplace_back(xs,pmax.y);
+        out.emplace_back(xe,pmax.y);
+        out.emplace_back(xe,pmin.y);
         return;
     }
     if (ylast < pmax.y) {
@@ -342,7 +342,7 @@ void InsertWindowContours(const ContourVector& contours,
                         if ((contour[a] - edge).SquareLength() > diag*diag*0.7) {
                             continue;
                         }
-                        curmesh.mVerts.push_back(IfcVector3(contour[a].x, contour[a].y, 0.0f));
+                        curmesh.mVerts.emplace_back(contour[a].x, contour[a].y, 0.0f);
                     }
 
                     if (edge != contour[last_hit]) {
@@ -363,7 +363,7 @@ void InsertWindowContours(const ContourVector& contours,
                             corner.y = bb.second.y;
                         }
 
-                        curmesh.mVerts.push_back(IfcVector3(corner.x, corner.y, 0.0f));
+                        curmesh.mVerts.emplace_back(corner.x, corner.y, 0.0f);
                     }
                     else if (cnt == 1) {
                         // avoid degenerate polygons (also known as lines or points)
@@ -558,10 +558,10 @@ void CleanupOuterContour(const std::vector<IfcVector2>& contour_flat, TempMesh&
                 for(const ClipperLib::ExPolygon& ex : clipped) {
                     iold.push_back(static_cast<unsigned int>(ex.outer.size()));
                     for(const ClipperLib::IntPoint& point : ex.outer) {
-                        vold.push_back(IfcVector3(
+                        vold.emplace_back(
                             from_int64(point.X),
                             from_int64(point.Y),
-                            0.0f));
+                            0.0f);
                     }
                 }
 
@@ -1039,7 +1039,7 @@ void Quadrify(const std::vector< BoundingBox >& bbs, TempMesh& curmesh)
     curmesh.mVertcnt.resize(quads.size()/4,4);
     curmesh.mVerts.reserve(quads.size());
     for(const IfcVector2& v2 : quads) {
-        curmesh.mVerts.push_back(IfcVector3(v2.x, v2.y, static_cast<IfcFloat>(0.0)));
+        curmesh.mVerts.emplace_back(v2.x, v2.y, static_cast<IfcFloat>(0.0));
     }
 }
 
@@ -1095,7 +1095,7 @@ IfcMatrix4 ProjectOntoPlane(std::vector<IfcVector2>& out_contour, const TempMesh
         vmin = std::min(vv, vmin);
         vmax = std::max(vv, vmax);
 
-        out_contour.push_back(IfcVector2(vv.x,vv.y));
+        out_contour.emplace_back(vv.x,vv.y);
     }
 
     zcoord /= in_verts.size();
@@ -1128,7 +1128,7 @@ IfcMatrix4 ProjectOntoPlane(std::vector<IfcVector2>& out_contour, const TempMesh
     for(const IfcVector3& x : in_verts) {
         const IfcVector3& vv = m * x;
 
-        out_contour2.push_back(IfcVector2(vv.x,vv.y));
+        out_contour2.emplace_back(vv.x,vv.y);
         ai_assert(std::fabs(vv.z) < vmax.z + 1e-8);
     }
 
@@ -1469,7 +1469,7 @@ std::vector<IfcVector2> GetContourInPlane2D(const std::shared_ptr<TempMesh>& mes
 
         // XXX should not be necessary - but it is. Why? For precision reasons?
         vv = is_extruded_side ? vv_extr : vv;
-        contour.push_back(IfcVector2(vv.x,vv.y));
+        contour.emplace_back(vv.x,vv.y);
     }
     ok = true;
 
@@ -1758,7 +1758,7 @@ bool TryAddOpenings_Poly2Tri(const std::vector<TempOpening>& openings,
         vmin = std::min(IfcVector2(vv.x, vv.y), vmin);
         vmax = std::max(IfcVector2(vv.x, vv.y), vmax);
 
-        contour_flat.push_back(IfcVector2(vv.x,vv.y));
+        contour_flat.emplace_back(vv.x,vv.y);
     }
 
     // With the current code in DerivePlaneCoordinateSpace,
@@ -1891,7 +1891,7 @@ bool TryAddOpenings_Poly2Tri(const std::vector<TempOpening>& openings,
         // Build the poly2tri inner contours for all holes we got from ClipperLib
         for(ClipperLib::Polygon& opening : clip.holes) {
 
-            contours.push_back(std::vector<p2t::Point*>());
+            contours.emplace_back();
             std::vector<p2t::Point*>& contour = contours.back();
 
             for(ClipperLib::IntPoint& point : opening) {

code/AssetLib/IFC/IFCProfile.cpp

@@ -108,10 +108,10 @@ void ProcessParametrizedProfile(const Schema_2x3::IfcParameterizedProfileDef& de
         const IfcFloat x = cprofile->XDim*0.5f, y = cprofile->YDim*0.5f;
 
         meshout.mVerts.reserve(meshout.mVerts.size()+4);
-        meshout.mVerts.push_back( IfcVector3( x, y, 0.f ));
-        meshout.mVerts.push_back( IfcVector3(-x, y, 0.f ));
-        meshout.mVerts.push_back( IfcVector3(-x,-y, 0.f ));
-        meshout.mVerts.push_back( IfcVector3( x,-y, 0.f ));
+        meshout.mVerts.emplace_back( x, y, 0.f );
+        meshout.mVerts.emplace_back(-x, y, 0.f );
+        meshout.mVerts.emplace_back(-x,-y, 0.f );
+        meshout.mVerts.emplace_back( x,-y, 0.f );
         meshout.mVertcnt.push_back(4);
     }
     else if( const Schema_2x3::IfcCircleProfileDef* const circle = def.ToPtr<Schema_2x3::IfcCircleProfileDef>()) {
@@ -125,7 +125,7 @@ void ProcessParametrizedProfile(const Schema_2x3::IfcParameterizedProfileDef& de
 
         IfcFloat angle = 0.f;
         for(size_t i = 0; i < segments; ++i, angle += delta) {
-            meshout.mVerts.push_back( IfcVector3( std::cos(angle)*radius, std::sin(angle)*radius, 0.f ));
+            meshout.mVerts.emplace_back( std::cos(angle)*radius, std::sin(angle)*radius, 0.f );
         }
 
         meshout.mVertcnt.push_back(static_cast<unsigned int>(segments));
@@ -136,18 +136,18 @@ void ProcessParametrizedProfile(const Schema_2x3::IfcParameterizedProfileDef& de
         const IfcFloat inner_height = ishape->OverallDepth - ishape->FlangeThickness * 2;
 
         meshout.mVerts.reserve(12);
-        meshout.mVerts.push_back(IfcVector3(0,0,0));
-        meshout.mVerts.push_back(IfcVector3(0,ishape->FlangeThickness,0));
-        meshout.mVerts.push_back(IfcVector3(offset,ishape->FlangeThickness,0));
-        meshout.mVerts.push_back(IfcVector3(offset,ishape->FlangeThickness + inner_height,0));
-        meshout.mVerts.push_back(IfcVector3(0,ishape->FlangeThickness + inner_height,0));
-        meshout.mVerts.push_back(IfcVector3(0,ishape->OverallDepth,0));
-        meshout.mVerts.push_back(IfcVector3(ishape->OverallWidth,ishape->OverallDepth,0));
-        meshout.mVerts.push_back(IfcVector3(ishape->OverallWidth,ishape->FlangeThickness + inner_height,0));
-        meshout.mVerts.push_back(IfcVector3(offset+ishape->WebThickness,ishape->FlangeThickness + inner_height,0));
-        meshout.mVerts.push_back(IfcVector3(offset+ishape->WebThickness,ishape->FlangeThickness,0));
-        meshout.mVerts.push_back(IfcVector3(ishape->OverallWidth,ishape->FlangeThickness,0));
-        meshout.mVerts.push_back(IfcVector3(ishape->OverallWidth,0,0));
+        meshout.mVerts.emplace_back(0,0,0);
+        meshout.mVerts.emplace_back(0,ishape->FlangeThickness,0);
+        meshout.mVerts.emplace_back(offset,ishape->FlangeThickness,0);
+        meshout.mVerts.emplace_back(offset,ishape->FlangeThickness + inner_height,0);
+        meshout.mVerts.emplace_back(0,ishape->FlangeThickness + inner_height,0);
+        meshout.mVerts.emplace_back(0,ishape->OverallDepth,0);
+        meshout.mVerts.emplace_back(ishape->OverallWidth,ishape->OverallDepth,0);
+        meshout.mVerts.emplace_back(ishape->OverallWidth,ishape->FlangeThickness + inner_height,0);
+        meshout.mVerts.emplace_back(offset+ishape->WebThickness,ishape->FlangeThickness + inner_height,0);
+        meshout.mVerts.emplace_back(offset+ishape->WebThickness,ishape->FlangeThickness,0);
+        meshout.mVerts.emplace_back(ishape->OverallWidth,ishape->FlangeThickness,0);
+        meshout.mVerts.emplace_back(ishape->OverallWidth,0,0);
 
         meshout.mVertcnt.push_back(12);
     }

code/AssetLib/IFC/IFCUtil.cpp

@@ -201,7 +201,7 @@ void TempMesh::ComputePolygonNormals(std::vector<IfcVector3>& normals,
     size_t vidx = std::accumulate(mVertcnt.begin(),begin,0);
     for(iit = begin; iit != end; vidx += *iit++) {
         if (!*iit) {
-            normals.push_back(IfcVector3());
+            normals.emplace_back();
             continue;
         }
         for(size_t vofs = 0, cnt = 0; vofs < *iit; ++vofs) {
@@ -215,7 +215,7 @@ void TempMesh::ComputePolygonNormals(std::vector<IfcVector3>& normals,
             ++cnt;
         }
 
-        normals.push_back(IfcVector3());
+        normals.emplace_back();
         NewellNormal<4,4,4>(normals.back(),*iit,&temp[0],&temp[1],&temp[2]);
     }
 

code/AssetLib/Irr/IRRLoader.cpp

@@ -628,7 +628,7 @@ void IRRImporter::GenerateGraph(Node *root, aiNode *rootOut, aiScene *scene,
 				ASSIMP_LOG_ERROR("IRR: Unable to load external file: ", root->meshPath);
 				break;
 			}
-			attach.push_back(AttachmentInfo(localScene, rootOut));
+			attach.emplace_back(localScene, rootOut);
 
 			// Now combine the material we've loaded for this mesh
 			// with the real materials we got from the file. As we
@@ -979,7 +979,7 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 					// Materials can occur for nearly any type of node
 					if (inMaterials && curNode->type != Node::DUMMY) {
 						//  This is a material description - parse it!
-						curNode->materials.push_back(std::pair<aiMaterial *, unsigned int>());
+						curNode->materials.emplace_back();
 						std::pair<aiMaterial *, unsigned int> &p = curNode->materials.back();
 
 						p.first = ParseMaterial(p.second);
@@ -988,7 +988,7 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 					} else if (inAnimator) {
 						//  This is an animation path - add a new animator
 						//  to the list.
-						curNode->animators.push_back(Animator());
+						curNode->animators.emplace_back();
 						curAnim = &curNode->animators.back();
 
 						++guessedAnimCnt;
@@ -1015,7 +1015,7 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
 										// here N is the ONE-based index of the point
 										if (prop.name.length() >= 6 && prop.name.substr(0, 5) == "Point") {
 											// Add a new key to the list
-											curAnim->splineKeys.push_back(aiVectorKey());
+											curAnim->splineKeys.emplace_back();
 											aiVectorKey &key = curAnim->splineKeys.back();
 
 											// and parse its properties

code/AssetLib/LWO/LWOLoader.cpp

@@ -1292,7 +1292,7 @@ void LWOImporter::LoadLWO2Envelope(unsigned int length) {
             case AI_LWO_KEY: {
                 AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, KEY, 8);
 
-                envelope.keys.push_back(LWO::Key());
+                envelope.keys.emplace_back();
                 LWO::Key &key = envelope.keys.back();
 
                 key.time = GetF4();
@@ -1390,7 +1390,7 @@ void LWOImporter::LoadLWO3Envelope(unsigned int length) {
             case AI_LWO_KEY: {
                 AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, KEY, 10);
 
-                envelope.keys.push_back(LWO::Key());
+                envelope.keys.emplace_back();
                 LWO::Key &key = envelope.keys.back();
 
                 key.time = GetF4();

code/AssetLib/LWS/LWSLoader.cpp

@@ -90,7 +90,7 @@ void LWS::Element::Parse(const char *&buffer) {
         } else if (*buffer == '}')
             return;
 
-        children.push_back(Element());
+        children.emplace_back();
 
         // copy data line - read token per token
 
@@ -199,7 +199,7 @@ void LWSImporter::ReadEnvelope(const LWS::Element &dad, LWO::Envelope &fill) {
         const char *c = (*it).tokens[1].c_str();
 
         if ((*it).tokens[0] == "Key") {
-            fill.keys.push_back(LWO::Key());
+            fill.keys.emplace_back();
             LWO::Key &key = fill.keys.back();
 
             float f;
@@ -262,7 +262,7 @@ void LWSImporter::ReadEnvelope_Old(
     num = strtoul10((*it).tokens[0].c_str());
     for (unsigned int i = 0; i < num; ++i) {
 
-        nodes.channels.push_back(LWO::Envelope());
+        nodes.channels.emplace_back();
         LWO::Envelope &envl = nodes.channels.back();
 
         envl.index = i;
@@ -384,7 +384,7 @@ void LWSImporter::BuildGraph(aiNode *nd, LWS::NodeDesc &src, std::vector<Attachm
 
         //Push attachment, if the object came from an external file
         if (obj) {
-            attach.push_back(AttachmentInfo(obj, nd));
+            attach.emplace_back(obj, nd);
         }
     }
 
@@ -637,7 +637,7 @@ void LWSImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
             }
 
             // important: index of channel
-            nodes.back().channels.push_back(LWO::Envelope());
+            nodes.back().channels.emplace_back();
             LWO::Envelope &env = nodes.back().channels.back();
 
             env.index = strtoul10(c);

code/AssetLib/MD3/MD3Loader.cpp

@@ -144,7 +144,7 @@ bool Q3Shader::LoadShader(ShaderData &fill, const std::string &pFile, IOSystem *
                 if (*buff == '{') {
                     ++buff;
                     // add new map section
-                    curData->maps.push_back(Q3Shader::ShaderMapBlock());
+                    curData->maps.emplace_back();
                     curMap = &curData->maps.back();
 
                     for (; SkipSpacesAndLineEnd(&buff); SkipLine(&buff)) {
@@ -209,7 +209,7 @@ bool Q3Shader::LoadShader(ShaderData &fill, const std::string &pFile, IOSystem *
             }
         } else {
             // add new section
-            fill.blocks.push_back(Q3Shader::ShaderDataBlock());
+            fill.blocks.emplace_back();
             curData = &fill.blocks.back();
 
             // get the name of this section
@@ -249,7 +249,7 @@ bool Q3Shader::LoadSkin(SkinData &fill, const std::string &pFile, IOSystem *io)
         if (!::strncmp(&ss[0], "tag_", std::min((size_t)4, ss.length())))
             continue;
 
-        fill.textures.push_back(SkinData::TextureEntry());
+        fill.textures.emplace_back();
         SkinData::TextureEntry &entry = fill.textures.back();
 
         entry.first = ss;
@@ -584,7 +584,7 @@ bool MD3Importer::ReadMultipartFile() {
 
         // original root
         scene_lower->mRootNode->mName.Set("lower");
-        attach.push_back(AttachmentInfo(scene_lower, nd));
+        attach.emplace_back(scene_lower, nd);
 
         // tag_torso
         tag_torso = scene_lower->mRootNode->FindNode("tag_torso");
@@ -593,7 +593,7 @@ bool MD3Importer::ReadMultipartFile() {
             goto error_cleanup;
         }
         scene_upper->mRootNode->mName.Set("upper");
-        attach.push_back(AttachmentInfo(scene_upper, tag_torso));
+        attach.emplace_back(scene_upper, tag_torso);
 
         // tag_head
         tag_head = scene_upper->mRootNode->FindNode("tag_head");
@@ -602,7 +602,7 @@ bool MD3Importer::ReadMultipartFile() {
             goto error_cleanup;
         }
         scene_head->mRootNode->mName.Set("head");
-        attach.push_back(AttachmentInfo(scene_head, tag_head));
+        attach.emplace_back(scene_head, tag_head);
 
         // Remove tag_head and tag_torso from all other model parts ...
         // this ensures (together with AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY)

code/AssetLib/MDC/MDCLoader.cpp

@@ -271,13 +271,13 @@ void MDCImporter::InternReadFile(
             pcMesh->mMaterialIndex = (unsigned int)aszShaders.size();
 
             // create a new shader
-            aszShaders.push_back(std::string(pcShader->ucName,
-                    ::strnlen(pcShader->ucName, sizeof(pcShader->ucName))));
+            aszShaders.emplace_back(pcShader->ucName,
+                    ::strnlen(pcShader->ucName, sizeof(pcShader->ucName)));
         }
         // need to create a default material
         else if (UINT_MAX == iDefaultMatIndex) {
             pcMesh->mMaterialIndex = iDefaultMatIndex = (unsigned int)aszShaders.size();
-            aszShaders.push_back(std::string());
+            aszShaders.emplace_back();
         }
         // otherwise assign a reference to the default material
         else

code/AssetLib/MS3D/MS3DLoader.cpp

@@ -399,7 +399,7 @@ void MS3DImporter::InternReadFile( const std::string& pFile,
         // if one of the groups has no material assigned, but there are other
         // groups with materials, a default material needs to be added (
         // scenepreprocessor adds a default material only if nummat==0).
-        materials.push_back(TempMaterial());
+        materials.emplace_back();
         TempMaterial& m = materials.back();
 
         strcpy(m.name,"<MS3D_DefaultMat>");

code/AssetLib/NDO/NDOLoader.cpp

@@ -171,7 +171,7 @@ void NDOImporter::InternReadFile( const std::string& pFile,
         obj.edges.reserve(temp);
         for (unsigned int e = 0; e < temp; ++e) {
 
-            obj.edges.push_back(Edge());
+            obj.edges.emplace_back();
             Edge& edge = obj.edges.back();
 
             for (unsigned int i = 0; i< 8; ++i) {
@@ -188,7 +188,7 @@ void NDOImporter::InternReadFile( const std::string& pFile,
         obj.faces.reserve(temp);
         for (unsigned int e = 0; e < temp; ++e) {
 
-            obj.faces.push_back(Face());
+            obj.faces.emplace_back();
             Face& face = obj.faces.back();
 
             face.elem = file_format >= 12 ? reader.GetU4() : reader.GetU2();
@@ -199,7 +199,7 @@ void NDOImporter::InternReadFile( const std::string& pFile,
         obj.vertices.reserve(temp);
         for (unsigned int e = 0; e < temp; ++e) {
 
-            obj.vertices.push_back(Vertex());
+            obj.vertices.emplace_back();
             Vertex& v = obj.vertices.back();
 
             v.num = file_format >= 12 ? reader.GetU4() : reader.GetU2();

code/AssetLib/NFF/NFFLoader.cpp

@@ -167,7 +167,7 @@ void NFFImporter::LoadNFF2MaterialTable(std::vector<ShadingInfo> &output,
         // 'matdef' starts a new material in the file
         else if (TokenMatch(sz, "matdef", 6)) {
             // add a new material to the list
-            output.push_back(ShadingInfo());
+            output.emplace_back();
             curShader = &output.back();
 
             // parse the name of the material
@@ -549,7 +549,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
                         }
                     }
                     if (!mesh) {
-                        meshes.push_back(MeshInfo(PatchType_Simple, false));
+                        meshes.emplace_back(PatchType_Simple, false);
                         mesh = &meshes.back();
                         mesh->matIndex = matIdx;
 
@@ -614,7 +614,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
                     }
 
                     if (!currentMeshWithUVCoords) {
-                        meshesWithUVCoords.push_back(MeshInfo(PatchType_UVAndNormals));
+                        meshesWithUVCoords.emplace_back(PatchType_UVAndNormals);
                         currentMeshWithUVCoords = &meshesWithUVCoords.back();
                         currentMeshWithUVCoords->shader = s;
                     }
@@ -631,7 +631,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
                     }
 
                     if (!currentMeshWithNormals) {
-                        meshesWithNormals.push_back(MeshInfo(PatchType_Normals));
+                        meshesWithNormals.emplace_back(PatchType_Normals);
                         currentMeshWithNormals = &meshesWithNormals.back();
                         currentMeshWithNormals->shader = s;
                     }
@@ -649,7 +649,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
                     }
 
                     if (!currentMesh) {
-                        meshes.push_back(MeshInfo(PatchType_Simple));
+                        meshes.emplace_back(PatchType_Simple);
                         currentMesh = &meshes.back();
                         currentMesh->shader = s;
                     }
@@ -749,7 +749,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
             }
             // 'l' - light source
             else if (TokenMatch(sz, "l", 1)) {
-                lights.push_back(Light());
+                lights.emplace_back();
                 Light &light = lights.back();
 
                 AI_NFF_PARSE_TRIPLE(light.position);
@@ -758,7 +758,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
             }
             // 's' - sphere
             else if (TokenMatch(sz, "s", 1)) {
-                meshesLocked.push_back(MeshInfo(PatchType_Simple, true));
+                meshesLocked.emplace_back(PatchType_Simple, true);
                 MeshInfo &curMesh = meshesLocked.back();
                 curMesh.shader = s;
                 curMesh.shader.mapping = aiTextureMapping_SPHERE;
@@ -774,7 +774,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
             }
             // 'dod' - dodecahedron
             else if (TokenMatch(sz, "dod", 3)) {
-                meshesLocked.push_back(MeshInfo(PatchType_Simple, true));
+                meshesLocked.emplace_back(PatchType_Simple, true);
                 MeshInfo &curMesh = meshesLocked.back();
                 curMesh.shader = s;
                 curMesh.shader.mapping = aiTextureMapping_SPHERE;
@@ -791,7 +791,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
 
             // 'oct' - octahedron
             else if (TokenMatch(sz, "oct", 3)) {
-                meshesLocked.push_back(MeshInfo(PatchType_Simple, true));
+                meshesLocked.emplace_back(PatchType_Simple, true);
                 MeshInfo &curMesh = meshesLocked.back();
                 curMesh.shader = s;
                 curMesh.shader.mapping = aiTextureMapping_SPHERE;
@@ -808,7 +808,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
 
             // 'tet' - tetrahedron
             else if (TokenMatch(sz, "tet", 3)) {
-                meshesLocked.push_back(MeshInfo(PatchType_Simple, true));
+                meshesLocked.emplace_back(PatchType_Simple, true);
                 MeshInfo &curMesh = meshesLocked.back();
                 curMesh.shader = s;
                 curMesh.shader.mapping = aiTextureMapping_SPHERE;
@@ -825,7 +825,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
 
             // 'hex' - hexahedron
             else if (TokenMatch(sz, "hex", 3)) {
-                meshesLocked.push_back(MeshInfo(PatchType_Simple, true));
+                meshesLocked.emplace_back(PatchType_Simple, true);
                 MeshInfo &curMesh = meshesLocked.back();
                 curMesh.shader = s;
                 curMesh.shader.mapping = aiTextureMapping_BOX;
@@ -841,7 +841,7 @@ void NFFImporter::InternReadFile(const std::string &pFile,
             }
             // 'c' - cone
             else if (TokenMatch(sz, "c", 1)) {
-                meshesLocked.push_back(MeshInfo(PatchType_Simple, true));
+                meshesLocked.emplace_back(PatchType_Simple, true);
                 MeshInfo &curMesh = meshesLocked.back();
                 curMesh.shader = s;
                 curMesh.shader.mapping = aiTextureMapping_CYLINDER;

code/AssetLib/Obj/ObjExporter.cpp

@@ -333,7 +333,7 @@ void ObjExporter::WriteGeometryFile(bool noMtl) {
 
 // ------------------------------------------------------------------------------------------------
 void ObjExporter::AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4x4& mat) {
-    mMeshes.push_back(MeshInstance() );
+    mMeshes.emplace_back( );
     MeshInstance& mesh = mMeshes.back();
 
     if ( nullptr != m->mColors[ 0 ] ) {

code/AssetLib/Obj/ObjFileParser.cpp

@@ -90,7 +90,7 @@ ObjFileParser::ObjFileParser(IOStreamBuffer<char> &streamBuffer, const std::stri
     // create default material and store it
     m_pModel->mDefaultMaterial = new ObjFile::Material;
     m_pModel->mDefaultMaterial->MaterialName.Set(DEFAULT_MATERIAL);
-    m_pModel->mMaterialLib.push_back(DEFAULT_MATERIAL);
+    m_pModel->mMaterialLib.emplace_back(DEFAULT_MATERIAL);
     m_pModel->mMaterialMap[DEFAULT_MATERIAL] = m_pModel->mDefaultMaterial;
 
     // Start parsing the file

code/AssetLib/Ogre/OgreStructs.cpp

@@ -256,7 +256,7 @@ AssimpVertexBoneWeightList IVertexData::AssimpBoneWeights(size_t vertices) {
         for (VertexBoneAssignmentList::const_iterator iter = vertexWeights.begin(), end = vertexWeights.end();
                 iter != end; ++iter) {
             std::vector<aiVertexWeight> &boneWeights = weights[iter->boneIndex];
-            boneWeights.push_back(aiVertexWeight(static_cast<unsigned int>(vi), iter->weight));
+            boneWeights.emplace_back(static_cast<unsigned int>(vi), iter->weight);
         }
     }
     return weights;

code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp

@@ -560,9 +560,9 @@ bool Q3BSPFileImporter::importTextureFromArchive(const Q3BSP::Q3BSPModel *model,
     }
 
     std::vector<std::string> supportedExtensions;
-    supportedExtensions.push_back(".jpg");
-    supportedExtensions.push_back(".png");
-    supportedExtensions.push_back(".tga");
+    supportedExtensions.emplace_back(".jpg");
+    supportedExtensions.emplace_back(".png");
+    supportedExtensions.emplace_back(".tga");
     std::string textureName, ext;
     if (expandFile(archive, pTexture->strName, supportedExtensions, textureName, ext)) {
         IOStream *pTextureStream = archive->Open(textureName.c_str());

code/AssetLib/Q3D/Q3DLoader.cpp

@@ -157,7 +157,7 @@ void Q3DImporter::InternReadFile(const std::string &pFile,
             // Meshes chunk
         case 'm': {
             for (unsigned int quak = 0; quak < numMeshes; ++quak) {
-                meshes.push_back(Mesh());
+                meshes.emplace_back();
                 Mesh &mesh = meshes.back();
 
                 // read all vertices
@@ -184,7 +184,7 @@ void Q3DImporter::InternReadFile(const std::string &pFile,
 
                 // number of indices
                 for (unsigned int i = 0; i < numVerts; ++i) {
-                    faces.push_back(Face(stream.GetI2()));
+                    faces.emplace_back(stream.GetI2());
                     if (faces.back().indices.empty())
                         throw DeadlyImportError("Quick3D: Found face with zero indices");
                 }
@@ -248,7 +248,7 @@ void Q3DImporter::InternReadFile(const std::string &pFile,
         case 'c':
 
             for (unsigned int i = 0; i < numMats; ++i) {
-                materials.push_back(Material());
+                materials.emplace_back();
                 Material &mat = materials.back();
 
                 // read the material name
@@ -402,7 +402,7 @@ outer:
     // If we have no materials loaded - generate a default mat
     if (materials.empty()) {
         ASSIMP_LOG_INFO("Quick3D: No material found, generating one");
-        materials.push_back(Material());
+        materials.emplace_back();
         materials.back().diffuse = fgColor;
     }
 

code/AssetLib/Raw/RawLoader.cpp

@@ -138,7 +138,7 @@ void RAWImporter::InternReadFile(const std::string &pFile,
                 }
             }
             if (sz2) {
-                outGroups.push_back(GroupInformation(std::string(sz, length)));
+                outGroups.emplace_back(std::string(sz, length));
                 curGroup = outGroups.end() - 1;
             }
         } else {
@@ -179,7 +179,7 @@ void RAWImporter::InternReadFile(const std::string &pFile,
             }
             // if we don't have the mesh, create it
             if (!output) {
-                (*curGroup).meshes.push_back(MeshInformation(std::string(sz, length)));
+                (*curGroup).meshes.emplace_back(std::string(sz, length));
                 output = &((*curGroup).meshes.back());
             }
             if (12 == num) {
@@ -188,13 +188,13 @@ void RAWImporter::InternReadFile(const std::string &pFile,
                 output->colors.push_back(v);
                 output->colors.push_back(v);
 
-                output->vertices.push_back(aiVector3D(data[3], data[4], data[5]));
-                output->vertices.push_back(aiVector3D(data[6], data[7], data[8]));
-                output->vertices.push_back(aiVector3D(data[9], data[10], data[11]));
+                output->vertices.emplace_back(data[3], data[4], data[5]);
+                output->vertices.emplace_back(data[6], data[7], data[8]);
+                output->vertices.emplace_back(data[9], data[10], data[11]);
             } else {
-                output->vertices.push_back(aiVector3D(data[0], data[1], data[2]));
-                output->vertices.push_back(aiVector3D(data[3], data[4], data[5]));
-                output->vertices.push_back(aiVector3D(data[6], data[7], data[8]));
+                output->vertices.emplace_back(data[0], data[1], data[2]);
+                output->vertices.emplace_back(data[3], data[4], data[5]);
+                output->vertices.emplace_back(data[6], data[7], data[8]);
             }
         }
     }

code/AssetLib/SMD/SMDLoader.cpp

@@ -227,7 +227,7 @@ void SMDImporter::FixTimeValues() {
 // create output meshes
 void SMDImporter::CreateOutputMeshes() {
     if (aszTextures.empty()) {
-        aszTextures.push_back(std::string());
+        aszTextures.emplace_back();
     }
 
     // we need to sort all faces by their material index
@@ -589,7 +589,7 @@ void SMDImporter::GetAnimationFileList(const std::string &pFile, IOSystem* pIOHa
                 animPath = p;
                 animName = DefaultIOSystem::completeBaseName(animPath);
             }
-            outList.push_back(std::make_tuple(animName, base + "/" + animPath));
+            outList.emplace_back(animName, base + "/" + animPath);
         }
         tok1 = strtok_s(nullptr, "\r\n", &context1);
     }
@@ -799,7 +799,7 @@ void SMDImporter::ParseVASection(const char* szCurrent, const char** szCurrentOu
             SkipLine(szCurrent,&szCurrent);
         } else {
             if(0 == iCurIndex) {
-                asTriangles.push_back(SMD::Face());
+                asTriangles.emplace_back();
             }
             if (++iCurIndex == 3) {
                 iCurIndex = 0;
@@ -919,7 +919,7 @@ void SMDImporter::ParseSkeletonElement(const char* szCurrent, const char** szCur
     }
     SMD::Bone& bone = asBones[iBone];
 
-    bone.sAnim.asKeys.push_back(SMD::Bone::Animation::MatrixKey());
+    bone.sAnim.asKeys.emplace_back();
     SMD::Bone::Animation::MatrixKey& key = bone.sAnim.asKeys.back();
 
     key.dTime = (double)iTime;
@@ -964,7 +964,7 @@ void SMDImporter::ParseSkeletonElement(const char* szCurrent, const char** szCur
 // ------------------------------------------------------------------------------------------------
 // Parse a triangle
 void SMDImporter::ParseTriangle(const char* szCurrent, const char** szCurrentOut) {
-    asTriangles.push_back(SMD::Face());
+    asTriangles.emplace_back();
     SMD::Face& face = asTriangles.back();
 
     if(!SkipSpaces(szCurrent,&szCurrent)) {

code/AssetLib/Unreal/UnrealLoader.cpp

@@ -335,7 +335,7 @@ void UnrealImporter::InternReadFile(const std::string &pFile,
                     SkipSpacesAndLineEnd(&data);
 
                     if (TokenMatchI(data, "IMPORT", 6)) {
-                        tempTextures.push_back(std::pair<std::string, std::string>());
+                        tempTextures.emplace_back();
                         std::pair<std::string, std::string> &me = tempTextures.back();
                         for (; !IsLineEnd(*data); ++data) {
                             if (!::ASSIMP_strincmp(data, "NAME=", 5)) {
@@ -361,7 +361,7 @@ void UnrealImporter::InternReadFile(const std::string &pFile,
 
                     if (TokenMatchI(data, "SETTEXTURE", 10)) {
 
-                        textures.push_back(std::pair<unsigned int, std::string>());
+                        textures.emplace_back();
                         std::pair<unsigned int, std::string> &me = textures.back();
 
                         for (; !IsLineEnd(*data); ++data) {

code/AssetLib/X/XFileImporter.cpp

@@ -380,7 +380,7 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
                     // does the new vertex stem from an old vertex which was influenced by this bone?
                     ai_real w = oldWeights[orgPoints[d]];
                     if ( w > 0.0 ) {
-                        newWeights.push_back( aiVertexWeight( d, w ) );
+                        newWeights.emplace_back( d, w );
                     }
                 }
 

code/AssetLib/X/XFileParser.cpp

@@ -454,7 +454,7 @@ void XFileParser::ParseDataObjectSkinWeights(Mesh *pMesh) {
     std::string transformNodeName;
     GetNextTokenAsString(transformNodeName);
 
-    pMesh->mBones.push_back(Bone());
+    pMesh->mBones.emplace_back();
     Bone &bone = pMesh->mBones.back();
     bone.mName = transformNodeName;
 
@@ -640,7 +640,7 @@ void XFileParser::ParseDataObjectMeshMaterialList(Mesh *pMesh) {
 
             CheckForClosingBrace(); // skip }
         } else if (objectName == "Material") {
-            pMesh->mMaterials.push_back(Material());
+            pMesh->mMaterials.emplace_back();
             ParseDataObjectMaterial(&pMesh->mMaterials.back());
         } else if (objectName == ";") {
             // ignore
@@ -678,12 +678,12 @@ void XFileParser::ParseDataObjectMaterial(Material *pMaterial) {
             // some exporters write "TextureFileName" instead.
             std::string texname;
             ParseDataObjectTextureFilename(texname);
-            pMaterial->mTextures.push_back(TexEntry(texname));
+            pMaterial->mTextures.emplace_back(texname);
         } else if (objectName == "NormalmapFilename" || objectName == "NormalmapFileName") {
             // one exporter writes out the normal map in a separate filename tag
             std::string texname;
             ParseDataObjectTextureFilename(texname);
-            pMaterial->mTextures.push_back(TexEntry(texname, true));
+            pMaterial->mTextures.emplace_back(texname, true);
         } else {
             ASSIMP_LOG_WARN("Unknown data object in material in x file");
             ParseUnknownDataObject();

code/AssetLib/X3D/X3DExporter.cpp

@@ -131,7 +131,7 @@ void X3DExporter::AttrHelper_Color3ToAttrList(std::list<SAttribute> &pList, cons
     if (pValue == pDefaultValue) return;
 
     AttrHelper_Col3DArrToString(&pValue, 1, tstr);
-    pList.push_back({ pName, tstr });
+    pList.emplace_back( pName, tstr );
 }
 
 void X3DExporter::AttrHelper_FloatToAttrList(std::list<SAttribute> &pList, const string &pName, const float pValue, const float pDefaultValue) {
@@ -140,7 +140,7 @@ void X3DExporter::AttrHelper_FloatToAttrList(std::list<SAttribute> &pList, const
     if (pValue == pDefaultValue) return;
 
     AttrHelper_FloatToString(pValue, tstr);
-    pList.push_back({ pName, tstr });
+    pList.emplace_back( pName, tstr );
 }
 
 void X3DExporter::NodeHelper_OpenNode(const string &pNodeName, const size_t pTabLevel, const bool pEmptyElement, const list<SAttribute> &pAttrList) {
@@ -186,7 +186,7 @@ void X3DExporter::Export_Node(const aiNode *pNode, const size_t pTabLevel) {
     if (CheckAndExport_Light(*pNode, pTabLevel)) return;
 
     // Check if need DEF.
-    if (pNode->mName.length) attr_list.push_back({ "DEF", pNode->mName.C_Str() });
+    if (pNode->mName.length) attr_list.emplace_back( "DEF", pNode->mName.C_Str() );
 
     // Check if need <Transformation> node against <Group>.
     if (!pNode->mTransformation.IsIdentity()) {
@@ -213,13 +213,13 @@ void X3DExporter::Export_Node(const aiNode *pNode, const size_t pTabLevel) {
         pNode->mTransformation.Decompose(scale, rotate_axis, rotate_angle, translate);
         // Check if values different from default
         if ((rotate_angle != 0) && (rotate_axis.Length() > 0))
-            attr_list.push_back({ "rotation", Rotation2String(rotate_axis, rotate_angle) });
+            attr_list.emplace_back( "rotation", Rotation2String(rotate_axis, rotate_angle) );
 
         if (!scale.Equal({ 1.0, 1.0, 1.0 })) {
-            attr_list.push_back({ "scale", Vector2String(scale) });
+            attr_list.emplace_back( "scale", Vector2String(scale) );
         }
         if (translate.Length() > 0) {
-            attr_list.push_back({ "translation", Vector2String(translate) });
+            attr_list.emplace_back( "translation", Vector2String(translate) );
         }
     }
 
@@ -284,7 +284,7 @@ void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel) {
     // Check if mesh already defined early.
     if (mDEF_Map_Mesh.find(pIdxMesh) != mDEF_Map_Mesh.end()) {
         // Mesh already defined, just refer to it
-        attr_list.push_back({ "USE", mDEF_Map_Mesh.at(pIdxMesh) });
+        attr_list.emplace_back( "USE", mDEF_Map_Mesh.at(pIdxMesh) );
         NodeHelper_OpenNode(NodeName_Shape, pTabLevel, true, attr_list);
 
         return;
@@ -293,7 +293,7 @@ void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel) {
     string mesh_name(mesh.mName.C_Str() + string("_IDX_") + to_string(pIdxMesh)); // Create mesh name
 
     // Define mesh name.
-    attr_list.push_back({ "DEF", mesh_name });
+    attr_list.emplace_back( "DEF", mesh_name );
     mDEF_Map_Mesh[pIdxMesh] = mesh_name;
 
     //
@@ -327,7 +327,7 @@ void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel) {
 
     // remove last space symbol.
     coordIndex.resize(coordIndex.length() - 1);
-    attr_list.push_back({ "coordIndex", coordIndex });
+    attr_list.emplace_back( "coordIndex", coordIndex );
     // create node
     NodeHelper_OpenNode(NodeName_IFS, pTabLevel + 1, false, attr_list);
     attr_list.clear();
@@ -336,14 +336,14 @@ void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel) {
 
     // Export <Coordinate>
     AttrHelper_Vec3DArrToString(mesh.mVertices, mesh.mNumVertices, attr_value);
-    attr_list.push_back({ "point", attr_value });
+    attr_list.emplace_back( "point", attr_value );
     NodeHelper_OpenNode("Coordinate", pTabLevel + 2, true, attr_list);
     attr_list.clear();
 
     // Export <ColorRGBA>
     if (mesh.HasVertexColors(0)) {
         AttrHelper_Col4DArrToString(mesh.mColors[0], mesh.mNumVertices, attr_value);
-        attr_list.push_back({ "color", attr_value });
+        attr_list.emplace_back( "color", attr_value );
         NodeHelper_OpenNode("ColorRGBA", pTabLevel + 2, true, attr_list);
         attr_list.clear();
     }
@@ -351,7 +351,7 @@ void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel) {
     // Export <TextureCoordinate>
     if (mesh.HasTextureCoords(0)) {
         AttrHelper_Vec3DAsVec2fArrToString(mesh.mTextureCoords[0], mesh.mNumVertices, attr_value);
-        attr_list.push_back({ "point", attr_value });
+        attr_list.emplace_back( "point", attr_value );
         NodeHelper_OpenNode("TextureCoordinate", pTabLevel + 2, true, attr_list);
         attr_list.clear();
     }
@@ -359,7 +359,7 @@ void X3DExporter::Export_Mesh(const size_t pIdxMesh, const size_t pTabLevel) {
     // Export <Normal>
     if (mesh.HasNormals()) {
         AttrHelper_Vec3DArrToString(mesh.mNormals, mesh.mNumVertices, attr_value);
-        attr_list.push_back({ "vector", attr_value });
+        attr_list.emplace_back( "vector", attr_value );
         NodeHelper_OpenNode("Normal", pTabLevel + 2, true, attr_list);
         attr_list.clear();
     }
@@ -380,7 +380,7 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
     // Check if material already defined early.
     if (mDEF_Map_Material.find(pIdxMaterial) != mDEF_Map_Material.end()) {
         // Material already defined, just refer to it
-        attr_list.push_back({ "USE", mDEF_Map_Material.at(pIdxMaterial) });
+        attr_list.emplace_back( "USE", mDEF_Map_Material.at(pIdxMaterial) );
         NodeHelper_OpenNode(NodeName_A, pTabLevel, true, attr_list);
 
         return;
@@ -392,7 +392,7 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
     if (material.Get(AI_MATKEY_NAME, ai_mat_name) == AI_SUCCESS) material_name.insert(0, ai_mat_name.C_Str());
 
     // Define material name.
-    attr_list.push_back({ "DEF", material_name });
+    attr_list.emplace_back( "DEF", material_name );
     mDEF_Map_Material[pIdxMaterial] = material_name;
 
     //
@@ -410,7 +410,7 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
 
             if (aiColor3D(pAttrValue.r, pAttrValue.g, pAttrValue.b) != pAttrDefaultValue) {
                 AttrHelper_Col4DArrToString(&pAttrValue, 1, tstr);
-                attr_list.push_back({ pAttrName, tstr });
+                attr_list.emplace_back( pAttrName, tstr );
             }
         };
 
@@ -462,7 +462,7 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
     //
     {
         auto RepeatToAttrList = [&](const string &pAttrName, const bool pAttrValue) {
-            if (!pAttrValue) attr_list.push_back({ pAttrName, "false" });
+            if (!pAttrValue) attr_list.emplace_back( pAttrName, "false" );
         };
 
         bool tvalb;
@@ -473,7 +473,7 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
             if (strncmp(tstring.C_Str(), AI_EMBEDDED_TEXNAME_PREFIX, strlen(AI_EMBEDDED_TEXNAME_PREFIX)) == 0)
                 LogError("Embedded texture is not supported");
             else
-                attr_list.push_back({ "url", string("\"") + tstring.C_Str() + "\"" });
+                attr_list.emplace_back( "url", string("\"") + tstring.C_Str() + "\"" );
         }
 
         // repeatS="true" SFBool
@@ -495,7 +495,7 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
 
             if (pAttrValue != pAttrDefaultValue) {
                 AttrHelper_Vec2DArrToString(&pAttrValue, 1, tstr);
-                attr_list.push_back({ pAttrName, tstr });
+                attr_list.emplace_back( pAttrName, tstr );
             }
         };
 
@@ -520,40 +520,40 @@ void X3DExporter::Export_Material(const size_t pIdxMaterial, const size_t pTabLe
 void X3DExporter::Export_MetadataBoolean(const aiString &pKey, const bool pValue, const size_t pTabLevel) {
     list<SAttribute> attr_list;
 
-    attr_list.push_back({ "name", pKey.C_Str() });
-    attr_list.push_back({ "value", pValue ? "true" : "false" });
+    attr_list.emplace_back( "name", pKey.C_Str() );
+    attr_list.emplace_back( "value", pValue ? "true" : "false" );
     NodeHelper_OpenNode("MetadataBoolean", pTabLevel, true, attr_list);
 }
 
 void X3DExporter::Export_MetadataDouble(const aiString &pKey, const double pValue, const size_t pTabLevel) {
     list<SAttribute> attr_list;
 
-    attr_list.push_back({ "name", pKey.C_Str() });
-    attr_list.push_back({ "value", to_string(pValue) });
+    attr_list.emplace_back( "name", pKey.C_Str() );
+    attr_list.emplace_back( "value", to_string(pValue) );
     NodeHelper_OpenNode("MetadataDouble", pTabLevel, true, attr_list);
 }
 
 void X3DExporter::Export_MetadataFloat(const aiString &pKey, const float pValue, const size_t pTabLevel) {
     list<SAttribute> attr_list;
 
-    attr_list.push_back({ "name", pKey.C_Str() });
-    attr_list.push_back({ "value", to_string(pValue) });
+    attr_list.emplace_back( "name", pKey.C_Str() );
+    attr_list.emplace_back( "value", to_string(pValue) );
     NodeHelper_OpenNode("MetadataFloat", pTabLevel, true, attr_list);
 }
 
 void X3DExporter::Export_MetadataInteger(const aiString &pKey, const int32_t pValue, const size_t pTabLevel) {
     list<SAttribute> attr_list;
 
-    attr_list.push_back({ "name", pKey.C_Str() });
-    attr_list.push_back({ "value", to_string(pValue) });
+    attr_list.emplace_back( "name", pKey.C_Str() );
+    attr_list.emplace_back( "value", to_string(pValue) );
     NodeHelper_OpenNode("MetadataInteger", pTabLevel, true, attr_list);
 }
 
 void X3DExporter::Export_MetadataString(const aiString &pKey, const aiString &pValue, const size_t pTabLevel) {
     list<SAttribute> attr_list;
 
-    attr_list.push_back({ "name", pKey.C_Str() });
-    attr_list.push_back({ "value", pValue.C_Str() });
+    attr_list.emplace_back( "name", pKey.C_Str() );
+    attr_list.emplace_back( "value", pValue.C_Str() );
     NodeHelper_OpenNode("MetadataString", pTabLevel, true, attr_list);
 }
 
@@ -565,7 +565,7 @@ bool X3DExporter::CheckAndExport_Light(const aiNode &pNode, const size_t pTabLev
 
         if (pAttrValue != pAttrDefaultValue) {
             AttrHelper_Vec3DArrToString(&pAttrValue, 1, tstr);
-            attr_list.push_back({ pAttrName, tstr });
+            attr_list.emplace_back( pAttrName, tstr );
         }
     };
 
@@ -590,8 +590,8 @@ bool X3DExporter::CheckAndExport_Light(const aiNode &pNode, const size_t pTabLev
 
     aiMatrix4x4 trafo_mat = Matrix_GlobalToCurrent(pNode).Inverse();
 
-    attr_list.push_back({ "DEF", light.mName.C_Str() });
-    attr_list.push_back({ "global", "true" }); // "false" is not supported.
+    attr_list.emplace_back( "DEF", light.mName.C_Str() );
+    attr_list.emplace_back( "global", "true" ); // "false" is not supported.
     // ambientIntensity="0" SFFloat [inputOutput]
     AttrHelper_FloatToAttrList(attr_list, "ambientIntensity", aiVector3D(light.mColorAmbient.r, light.mColorAmbient.g, light.mColorAmbient.b).Length(), 0);
     // color="1 1 1"        SFColor [inputOutput]
@@ -648,10 +648,10 @@ X3DExporter::X3DExporter(const char *pFileName, IOSystem *pIOSystem, const aiSce
     XML_Write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
     XML_Write("<!DOCTYPE X3D PUBLIC \"ISO//Web3D//DTD X3D 3.3//EN\" \"http://www.web3d.org/specifications/x3d-3.3.dtd\">\n");
     // Root node
-    attr_list.push_back({ "profile", "Interchange" });
-    attr_list.push_back({ "version", "3.3" });
-    attr_list.push_back({ "xmlns:xsd", "http://www.w3.org/2001/XMLSchema-instance" });
-    attr_list.push_back({ "xsd:noNamespaceSchemaLocation", "http://www.web3d.org/specifications/x3d-3.3.xsd" });
+    attr_list.emplace_back( "profile", "Interchange" );
+    attr_list.emplace_back( "version", "3.3" );
+    attr_list.emplace_back( "xmlns:xsd", "http://www.w3.org/2001/XMLSchema-instance" );
+    attr_list.emplace_back( "xsd:noNamespaceSchemaLocation", "http://www.web3d.org/specifications/x3d-3.3.xsd" );
     NodeHelper_OpenNode("X3D", 0, false, attr_list);
     attr_list.clear();
     // <head>: meta data.

code/AssetLib/X3D/X3DGeoHelper.cpp

@@ -193,7 +193,7 @@ void X3DGeoHelper::add_color(aiMesh &pMesh, const std::list<aiColor3D> &pColors,
 
     // create RGBA array from RGB.
     for (std::list<aiColor3D>::const_iterator it = pColors.begin(); it != pColors.end(); ++it)
-        tcol.push_back(aiColor4D((*it).r, (*it).g, (*it).b, 1));
+        tcol.emplace_back((*it).r, (*it).g, (*it).b, 1);
 
     // call existing function for adding RGBA colors
     add_color(pMesh, tcol, pColorPerVertex);
@@ -238,7 +238,7 @@ void X3DGeoHelper::add_color(aiMesh &pMesh, const std::vector<int32_t> &pCoordId
 
     // create RGBA array from RGB.
     for (std::list<aiColor3D>::const_iterator it = pColors.begin(); it != pColors.end(); ++it) {
-        tcol.push_back(aiColor4D((*it).r, (*it).g, (*it).b, 1));
+        tcol.emplace_back((*it).r, (*it).g, (*it).b, 1);
     }
 
     // call existing function for adding RGBA colors
@@ -440,7 +440,7 @@ void X3DGeoHelper::add_tex_coord(aiMesh &pMesh, const std::vector<int32_t> &pCoo
     // copy list to array because we are need indexed access to normals.
     texcoord_arr_copy.reserve(pTexCoords.size());
     for (std::list<aiVector2D>::const_iterator it = pTexCoords.begin(); it != pTexCoords.end(); ++it) {
-        texcoord_arr_copy.push_back(aiVector3D((*it).x, (*it).y, 0));
+        texcoord_arr_copy.emplace_back((*it).x, (*it).y, 0);
     }
 
     if (pTexCoordIdx.size() > 0) {
@@ -480,7 +480,7 @@ void X3DGeoHelper::add_tex_coord(aiMesh &pMesh, const std::list<aiVector2D> &pTe
     // copy list to array because we are need convert aiVector2D to aiVector3D and also get indexed access as a bonus.
     tc_arr_copy.reserve(pTexCoords.size());
     for (std::list<aiVector2D>::const_iterator it = pTexCoords.begin(); it != pTexCoords.end(); ++it) {
-        tc_arr_copy.push_back(aiVector3D((*it).x, (*it).y, 0));
+        tc_arr_copy.emplace_back((*it).x, (*it).y, 0);
     }
 
     // copy texture coordinates to mesh

code/AssetLib/X3D/X3DImporter_Geometry2D.cpp

@@ -152,7 +152,7 @@ void X3DImporter::readArcClose2D(XmlNode &node) {
             std::list<aiVector3D> &vlist = ((X3DNodeElementGeometry2D *)ne)->Vertices; // just short alias.
 
             if ((closureType == "PIE") || (closureType == "\"PIE\""))
-                vlist.push_back(aiVector3D(0, 0, 0)); // center point - first radial line
+                vlist.emplace_back(0, 0, 0); // center point - first radial line
             else if ((closureType != "CHORD") && (closureType != "\"CHORD\""))
                 Throw_IncorrectAttrValue("ArcClose2D", "closureType");
 
@@ -321,7 +321,7 @@ void X3DImporter::readPolyline2D(XmlNode &node) {
 
         // convert vec2 to vec3
         for (std::list<aiVector2D>::iterator it2 = lineSegments.begin(); it2 != lineSegments.end(); ++it2)
-            tlist.push_back(aiVector3D(it2->x, it2->y, 0));
+            tlist.emplace_back(it2->x, it2->y, 0);
 
         // convert point set to line set
         X3DGeoHelper::extend_point_to_line(tlist, ((X3DNodeElementGeometry2D *)ne)->Vertices);
@@ -359,7 +359,7 @@ void X3DImporter::readPolypoint2D(XmlNode &node) {
 
         // convert vec2 to vec3
         for (std::list<aiVector2D>::iterator it2 = point.begin(); it2 != point.end(); ++it2) {
-            ((X3DNodeElementGeometry2D *)ne)->Vertices.push_back(aiVector3D(it2->x, it2->y, 0));
+            ((X3DNodeElementGeometry2D *)ne)->Vertices.emplace_back(it2->x, it2->y, 0);
         }
 
         ((X3DNodeElementGeometry2D *)ne)->NumIndices = 1;
@@ -403,10 +403,10 @@ void X3DImporter::readRectangle2D(XmlNode &node) {
         float y2 = size.y / 2.0f;
         std::list<aiVector3D> &vlist = ((X3DNodeElementGeometry2D *)ne)->Vertices; // just short alias.
 
-        vlist.push_back(aiVector3D(x2, y1, 0)); // 1st point
-        vlist.push_back(aiVector3D(x2, y2, 0)); // 2nd point
-        vlist.push_back(aiVector3D(x1, y2, 0)); // 3rd point
-        vlist.push_back(aiVector3D(x1, y1, 0)); // 4th point
+        vlist.emplace_back(x2, y1, 0); // 1st point
+        vlist.emplace_back(x2, y2, 0); // 2nd point
+        vlist.emplace_back(x1, y2, 0); // 3rd point
+        vlist.emplace_back(x1, y1, 0); // 4th point
         ((X3DNodeElementGeometry2D *)ne)->Solid = solid;
         ((X3DNodeElementGeometry2D *)ne)->NumIndices = 4;
         // check for X3DMetadataObject childs.
@@ -447,7 +447,7 @@ void X3DImporter::readTriangleSet2D(XmlNode &node) {
 
         // convert vec2 to vec3
         for (std::list<aiVector2D>::iterator it2 = vertices.begin(); it2 != vertices.end(); ++it2) {
-            ((X3DNodeElementGeometry2D *)ne)->Vertices.push_back(aiVector3D(it2->x, it2->y, 0));
+            ((X3DNodeElementGeometry2D *)ne)->Vertices.emplace_back(it2->x, it2->y, 0);
         }
 
         ((X3DNodeElementGeometry2D *)ne)->Solid = solid;

code/Common/Exporter.cpp

@@ -146,73 +146,73 @@ static void setupExporterArray(std::vector<Exporter::ExportFormatEntry> &exporte
 	(void)exporters;
 
 #ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada));
+	exporters.emplace_back("collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_X_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("x", "X Files", "x", &ExportSceneXFile,
-			aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs));
+	exporters.emplace_back("x", "X Files", "x", &ExportSceneXFile,
+			aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_STEP_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("stp", "Step Files", "stp", &ExportSceneStep, 0));
+	exporters.emplace_back("stp", "Step Files", "stp", &ExportSceneStep, 0);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_OBJ_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("obj", "Wavefront OBJ format", "obj", &ExportSceneObj,
-			aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */));
-	exporters.push_back(Exporter::ExportFormatEntry("objnomtl", "Wavefront OBJ format without material file", "obj", &ExportSceneObjNoMtl,
-			aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */));
+	exporters.emplace_back("obj", "Wavefront OBJ format", "obj", &ExportSceneObj,
+			aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */);
+	exporters.emplace_back("objnomtl", "Wavefront OBJ format without material file", "obj", &ExportSceneObjNoMtl,
+			aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_STL_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("stl", "Stereolithography", "stl", &ExportSceneSTL,
-			aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices));
-	exporters.push_back(Exporter::ExportFormatEntry("stlb", "Stereolithography (binary)", "stl", &ExportSceneSTLBinary,
-			aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices));
+	exporters.emplace_back("stl", "Stereolithography", "stl", &ExportSceneSTL,
+			aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices);
+	exporters.emplace_back("stlb", "Stereolithography (binary)", "stl", &ExportSceneSTLBinary,
+			aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_PLY_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("ply", "Stanford Polygon Library", "ply", &ExportScenePly,
-			aiProcess_PreTransformVertices));
-	exporters.push_back(Exporter::ExportFormatEntry("plyb", "Stanford Polygon Library (binary)", "ply", &ExportScenePlyBinary,
-			aiProcess_PreTransformVertices));
+	exporters.emplace_back("ply", "Stanford Polygon Library", "ply", &ExportScenePly,
+			aiProcess_PreTransformVertices);
+	exporters.emplace_back("plyb", "Stanford Polygon Library (binary)", "ply", &ExportScenePlyBinary,
+			aiProcess_PreTransformVertices);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("3ds", "Autodesk 3DS (legacy)", "3ds", &ExportScene3DS,
-			aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices));
+	exporters.emplace_back("3ds", "Autodesk 3DS (legacy)", "3ds", &ExportScene3DS,
+			aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices);
 #endif
 
 #if !defined(ASSIMP_BUILD_NO_GLTF_EXPORTER) && !defined(ASSIMP_BUILD_NO_GLTF2_EXPORTER)
-	exporters.push_back(Exporter::ExportFormatEntry("gltf2", "GL Transmission Format v. 2", "gltf", &ExportSceneGLTF2,
-			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
-	exporters.push_back(Exporter::ExportFormatEntry("glb2", "GL Transmission Format v. 2 (binary)", "glb", &ExportSceneGLB2,
-			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
+	exporters.emplace_back("gltf2", "GL Transmission Format v. 2", "gltf", &ExportSceneGLTF2,
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType);
+	exporters.emplace_back("glb2", "GL Transmission Format v. 2 (binary)", "glb", &ExportSceneGLB2,
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType);
 #endif
 
 #if !defined(ASSIMP_BUILD_NO_GLTF_EXPORTER) && !defined(ASSIMP_BUILD_NO_GLTF1_EXPORTER)
-	exporters.push_back(Exporter::ExportFormatEntry("gltf", "GL Transmission Format", "gltf", &ExportSceneGLTF,
-			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
-	exporters.push_back(Exporter::ExportFormatEntry("glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
-			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
+	exporters.emplace_back("gltf", "GL Transmission Format", "gltf", &ExportSceneGLTF,
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType);
+	exporters.emplace_back("glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSBIN_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("assbin", "Assimp Binary File", "assbin", &ExportSceneAssbin, 0));
+	exporters.emplace_back("assbin", "Assimp Binary File", "assbin", &ExportSceneAssbin, 0);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSXML_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("assxml", "Assimp XML Document", "assxml", &ExportSceneAssxml, 0));
+	exporters.emplace_back("assxml", "Assimp XML Document", "assxml", &ExportSceneAssxml, 0);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_X3D_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("x3d", "Extensible 3D", "x3d", &ExportSceneX3D, 0));
+	exporters.emplace_back("x3d", "Extensible 3D", "x3d", &ExportSceneX3D, 0);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0));
-	exporters.push_back(Exporter::ExportFormatEntry("fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0));
+	exporters.emplace_back("fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0);
+	exporters.emplace_back("fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_M3D_EXPORTER
@@ -221,15 +221,15 @@ static void setupExporterArray(std::vector<Exporter::ExportFormatEntry> &exporte
 #endif
 
 #ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0));
+	exporters.emplace_back("3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_PBRT_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("pbrt", "pbrt-v4 scene description file", "pbrt", &ExportScenePbrt, aiProcess_Triangulate | aiProcess_SortByPType));
+	exporters.emplace_back("pbrt", "pbrt-v4 scene description file", "pbrt", &ExportScenePbrt, aiProcess_Triangulate | aiProcess_SortByPType);
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSJSON_EXPORTER
-	exporters.push_back(Exporter::ExportFormatEntry("assjson", "Assimp JSON Document", "json", &ExportAssimp2Json, 0));
+	exporters.emplace_back("assjson", "Assimp JSON Document", "json", &ExportAssimp2Json, 0);
 #endif
 }
 

code/Common/SGSpatialSort.cpp

@@ -69,8 +69,8 @@ void SGSpatialSort::Add(const aiVector3D& vPosition, unsigned int index,
 {
     // store position by index and distance
     float distance = vPosition * mPlaneNormal;
-    mPositions.push_back( Entry( index, vPosition,
-        distance, smoothingGroup));
+    mPositions.emplace_back( index, vPosition,
+        distance, smoothingGroup);
 }
 // ------------------------------------------------------------------------------------------------
 void SGSpatialSort::Prepare()

code/Common/SceneCombiner.cpp

@@ -510,7 +510,7 @@ void SceneCombiner::MergeScenes(aiScene **_dest, aiScene *master, std::vector<At
             OffsetNodeMeshIndices(node, offset[n]);
         }
         if (n) // src[0] is the master node
-            nodes.push_back(NodeAttachmentInfo(node, srcList[n - 1].attachToNode, n));
+            nodes.emplace_back(node, srcList[n - 1].attachToNode, n);
 
         // add name prefixes?
         if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
@@ -685,19 +685,19 @@ void SceneCombiner::BuildUniqueBoneList(std::list<BoneWithHash> &asBones,
 
             for (; it2 != end2; ++it2) {
                 if ((*it2).first == itml) {
-                    (*it2).pSrcBones.push_back(BoneSrcIndex(p, iOffset));
+                    (*it2).pSrcBones.emplace_back(p, iOffset);
                     break;
                 }
             }
             if (end2 == it2) {
                 // need to begin a new bone entry
-                asBones.push_back(BoneWithHash());
+                asBones.emplace_back();
                 BoneWithHash &btz = asBones.back();
 
                 // setup members
                 btz.first = itml;
                 btz.second = &p->mName;
-                btz.pSrcBones.push_back(BoneSrcIndex(p, iOffset));
+                btz.pSrcBones.emplace_back(p, iOffset);
             }
         }
         iOffset += (*it)->mNumVertices;

code/Common/SkeletonMeshBuilder.cpp

@@ -122,50 +122,50 @@ void SkeletonMeshBuilder::CreateGeometry(const aiNode *pNode) {
             mVertices.push_back(childpos);
             mVertices.push_back(-front * distanceToChild * (ai_real)0.1);
 
-            mFaces.push_back(Face(localVertexStart + 0, localVertexStart + 1, localVertexStart + 2));
-            mFaces.push_back(Face(localVertexStart + 3, localVertexStart + 4, localVertexStart + 5));
-            mFaces.push_back(Face(localVertexStart + 6, localVertexStart + 7, localVertexStart + 8));
-            mFaces.push_back(Face(localVertexStart + 9, localVertexStart + 10, localVertexStart + 11));
+            mFaces.emplace_back(localVertexStart + 0, localVertexStart + 1, localVertexStart + 2);
+            mFaces.emplace_back(localVertexStart + 3, localVertexStart + 4, localVertexStart + 5);
+            mFaces.emplace_back(localVertexStart + 6, localVertexStart + 7, localVertexStart + 8);
+            mFaces.emplace_back(localVertexStart + 9, localVertexStart + 10, localVertexStart + 11);
         }
     } else {
         // if the node has no children, it's an end node. Put a little knob there instead
         aiVector3D ownpos(pNode->mTransformation.a4, pNode->mTransformation.b4, pNode->mTransformation.c4);
         ai_real sizeEstimate = ownpos.Length() * ai_real(0.18);
 
-        mVertices.push_back(aiVector3D(-sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(0.0, sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, -sizeEstimate));
-        mVertices.push_back(aiVector3D(0.0, sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, -sizeEstimate));
-        mVertices.push_back(aiVector3D(sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(0.0, -sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, -sizeEstimate));
-        mVertices.push_back(aiVector3D(0.0, -sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(-sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, -sizeEstimate));
-
-        mVertices.push_back(aiVector3D(-sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, sizeEstimate));
-        mVertices.push_back(aiVector3D(0.0, sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(0.0, sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, sizeEstimate));
-        mVertices.push_back(aiVector3D(sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(sizeEstimate, 0.0, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, sizeEstimate));
-        mVertices.push_back(aiVector3D(0.0, -sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(0.0, -sizeEstimate, 0.0));
-        mVertices.push_back(aiVector3D(0.0, 0.0, sizeEstimate));
-        mVertices.push_back(aiVector3D(-sizeEstimate, 0.0, 0.0));
-
-        mFaces.push_back(Face(vertexStartIndex + 0, vertexStartIndex + 1, vertexStartIndex + 2));
-        mFaces.push_back(Face(vertexStartIndex + 3, vertexStartIndex + 4, vertexStartIndex + 5));
-        mFaces.push_back(Face(vertexStartIndex + 6, vertexStartIndex + 7, vertexStartIndex + 8));
-        mFaces.push_back(Face(vertexStartIndex + 9, vertexStartIndex + 10, vertexStartIndex + 11));
-        mFaces.push_back(Face(vertexStartIndex + 12, vertexStartIndex + 13, vertexStartIndex + 14));
-        mFaces.push_back(Face(vertexStartIndex + 15, vertexStartIndex + 16, vertexStartIndex + 17));
-        mFaces.push_back(Face(vertexStartIndex + 18, vertexStartIndex + 19, vertexStartIndex + 20));
-        mFaces.push_back(Face(vertexStartIndex + 21, vertexStartIndex + 22, vertexStartIndex + 23));
+        mVertices.emplace_back(-sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(0.0, sizeEstimate, 0.0);
+        mVertices.emplace_back(0.0, 0.0, -sizeEstimate);
+        mVertices.emplace_back(0.0, sizeEstimate, 0.0);
+        mVertices.emplace_back(sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(0.0, 0.0, -sizeEstimate);
+        mVertices.emplace_back(sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(0.0, -sizeEstimate, 0.0);
+        mVertices.emplace_back(0.0, 0.0, -sizeEstimate);
+        mVertices.emplace_back(0.0, -sizeEstimate, 0.0);
+        mVertices.emplace_back(-sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(0.0, 0.0, -sizeEstimate);
+
+        mVertices.emplace_back(-sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(0.0, 0.0, sizeEstimate);
+        mVertices.emplace_back(0.0, sizeEstimate, 0.0);
+        mVertices.emplace_back(0.0, sizeEstimate, 0.0);
+        mVertices.emplace_back(0.0, 0.0, sizeEstimate);
+        mVertices.emplace_back(sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(sizeEstimate, 0.0, 0.0);
+        mVertices.emplace_back(0.0, 0.0, sizeEstimate);
+        mVertices.emplace_back(0.0, -sizeEstimate, 0.0);
+        mVertices.emplace_back(0.0, -sizeEstimate, 0.0);
+        mVertices.emplace_back(0.0, 0.0, sizeEstimate);
+        mVertices.emplace_back(-sizeEstimate, 0.0, 0.0);
+
+        mFaces.emplace_back(vertexStartIndex + 0, vertexStartIndex + 1, vertexStartIndex + 2);
+        mFaces.emplace_back(vertexStartIndex + 3, vertexStartIndex + 4, vertexStartIndex + 5);
+        mFaces.emplace_back(vertexStartIndex + 6, vertexStartIndex + 7, vertexStartIndex + 8);
+        mFaces.emplace_back(vertexStartIndex + 9, vertexStartIndex + 10, vertexStartIndex + 11);
+        mFaces.emplace_back(vertexStartIndex + 12, vertexStartIndex + 13, vertexStartIndex + 14);
+        mFaces.emplace_back(vertexStartIndex + 15, vertexStartIndex + 16, vertexStartIndex + 17);
+        mFaces.emplace_back(vertexStartIndex + 18, vertexStartIndex + 19, vertexStartIndex + 20);
+        mFaces.emplace_back(vertexStartIndex + 21, vertexStartIndex + 22, vertexStartIndex + 23);
     }
 
     unsigned int numVertices = static_cast<unsigned int>(mVertices.size() - vertexStartIndex);

code/Common/SpatialSort.cpp

@@ -116,7 +116,7 @@ void SpatialSort::Append(const aiVector3D *pPositions, unsigned int pNumPosition
     for (unsigned int a = 0; a < pNumPositions; a++) {
         const char *tempPointer = reinterpret_cast<const char *>(pPositions);
         const aiVector3D *vec = reinterpret_cast<const aiVector3D *>(tempPointer + a * pElementOffset);
-        mPositions.push_back(Entry(static_cast<unsigned int>(a + initial), *vec));
+        mPositions.emplace_back(static_cast<unsigned int>(a + initial), *vec);
     }
 
     if (pFinalize) {

code/Common/StandardShapes.cpp

@@ -422,15 +422,15 @@ void StandardShapes::MakeCone(ai_real height, ai_real radius1,
 
         if (!bOpen) {
             // generate the end 'cap'
-            positions.push_back(aiVector3D(s * radius2, halfHeight, t * radius2));
-            positions.push_back(aiVector3D(s2 * radius2, halfHeight, t2 * radius2));
-            positions.push_back(aiVector3D(0.0, halfHeight, 0.0));
+            positions.emplace_back(s * radius2, halfHeight, t * radius2);
+            positions.emplace_back(s2 * radius2, halfHeight, t2 * radius2);
+            positions.emplace_back(0.0, halfHeight, 0.0);
 
             if (radius1) {
                 // generate the other end 'cap'
-                positions.push_back(aiVector3D(s * radius1, -halfHeight, t * radius1));
-                positions.push_back(aiVector3D(s2 * radius1, -halfHeight, t2 * radius1));
-                positions.push_back(aiVector3D(0.0, -halfHeight, 0.0));
+                positions.emplace_back(s * radius1, -halfHeight, t * radius1);
+                positions.emplace_back(s2 * radius1, -halfHeight, t2 * radius1);
+                positions.emplace_back(0.0, -halfHeight, 0.0);
             }
         }
         s = s2;
@@ -466,13 +466,13 @@ void StandardShapes::MakeCircle(ai_real radius, unsigned int tess,
     ai_real t = 0.0; // std::sin(angle == 0);
 
     for (ai_real angle = 0.0; angle < angle_max;) {
-        positions.push_back(aiVector3D(s * radius, 0.0, t * radius));
+        positions.emplace_back(s * radius, 0.0, t * radius);
         angle += angle_delta;
         s = std::cos(angle);
         t = std::sin(angle);
-        positions.push_back(aiVector3D(s * radius, 0.0, t * radius));
+        positions.emplace_back(s * radius, 0.0, t * radius);
 
-        positions.push_back(aiVector3D(0.0, 0.0, 0.0));
+        positions.emplace_back(0.0, 0.0, 0.0);
     }
 }
 

code/PostProcessing/ProcessHelper.cpp

@@ -63,7 +63,7 @@ void ConvertListToStrings(const std::string &in, std::list<std::string> &out) {
                     return;
                 }
             }
-            out.push_back(std::string(base, (size_t)(s - base)));
+            out.emplace_back(base, (size_t)(s - base));
             ++s;
         } else {
             out.push_back(GetNextToken(s));

code/PostProcessing/SplitLargeMeshes.cpp

@@ -316,13 +316,13 @@ void SplitLargeMeshesProcess_Triangle::SplitMesh(
             }
 
             // add the newly created mesh to the list
-            avList.push_back(std::pair<aiMesh*, unsigned int>(pcMesh,a));
+            avList.emplace_back(pcMesh,a);
         }
 
         // now delete the old mesh data
         delete pMesh;
     } else {
-        avList.push_back(std::pair<aiMesh*, unsigned int>(pMesh,a));
+        avList.emplace_back(pMesh,a);
     }
 }
 
@@ -484,7 +484,7 @@ void SplitLargeMeshesProcess_Vertex::SplitMesh(
                     break;
                 }
 
-                vFaces.push_back(aiFace());
+                vFaces.emplace_back();
                 aiFace& rFace = vFaces.back();
 
                 // setup face type and number of indices
@@ -605,7 +605,7 @@ void SplitLargeMeshesProcess_Vertex::SplitMesh(
             }
 
             // add the newly created mesh to the list
-            avList.push_back(std::pair<aiMesh*, unsigned int>(pcMesh,a));
+            avList.emplace_back(pcMesh,a);
 
             if (iBase == pMesh->mNumFaces) {
                 // have all faces ... finish the outer loop, too
@@ -620,5 +620,5 @@ void SplitLargeMeshesProcess_Vertex::SplitMesh(
         delete pMesh;
         return;
     }
-    avList.push_back(std::pair<aiMesh*, unsigned int>(pMesh,a));
+    avList.emplace_back(pMesh,a);
 }