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41 results

ExtractElements.cpp

Blame
  • gmshc.cpp 77.10 KiB
    // Gmsh - Copyright (C) 1997-2018 C. Geuzaine, J.-F. Remacle
    //
    // See the LICENSE.txt file for license information. Please report all
    // bugs and problems to the public mailing list <gmsh@onelab.info>.
    
    #include <string.h>
    #include <stdlib.h>
    #include "gmsh.h"
    
    extern "C" {
      #include "gmshc.h"
    }
    
    GMSH_API void *gmshMalloc(size_t n)
    {
      return malloc(n);
    }
    
    GMSH_API void gmshFree(void *p)
    {
      if(p) free(p);
    }
    
    template<typename t>
    void vector2ptr(const std::vector<t> &v, t **p, size_t *size)
    {
      *p = (t*)gmshMalloc(sizeof(t) * v.size());
      for(size_t i = 0; i < v.size(); ++i){
        (*p)[i] = v[i];
      }
      *size = v.size();
    }
    
    void vectorpair2intptr(const gmsh::vectorpair &v, int **p, size_t *size)
    {
      *p = (int*)gmshMalloc(sizeof(int) * v.size() * 2);
      for(size_t i = 0; i < v.size(); ++i){
        (*p)[i * 2 + 0] = v[i].first;
        (*p)[i * 2 + 1] = v[i].second;
      }
      *size = v.size() * 2;
    }
    
    template<typename t>
    void vectorvector2ptrptr(const std::vector<std::vector<t> > &v, t ***p, size_t **size, size_t *sizeSize)
    {
      *p = (t**)gmshMalloc(sizeof(t*) * v.size());
      *size = (size_t*)gmshMalloc(sizeof(size_t) * v.size());
      for(size_t i = 0; i < v.size(); ++i)
        vector2ptr(v[i], &((*p)[i]), &((*size)[i]));
      *sizeSize = v.size();
    }
    
    void vectorstring2charptrptr(const std::vector<std::string> &v, char ***p, size_t *size)
    {
      *p = (char**)gmshMalloc(sizeof(char*) * v.size());
      for(size_t i = 0; i < v.size(); ++i){
        (*p)[i] = strdup(v[i].c_str());
      }
      *size = v.size();
    }
    
    void vectorvectorpair2intptrptr(const std::vector<gmsh::vectorpair > &v, int ***p, size_t **size, size_t *sizeSize)
    {
      *p = (int**)gmshMalloc(sizeof(int*) * v.size());
      *size = (size_t*)gmshMalloc(sizeof(size_t) * v.size());
      for(size_t i = 0; i < v.size(); ++i)
        vectorpair2intptr(v[i], &(*p)[i], &((*size)[i]));
      *sizeSize = v.size();
    }
    
    GMSH_API void gmshInitialize(int argc, char ** argv, const int readConfigFiles, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::initialize(argc, argv, readConfigFiles);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshFinalize(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::finalize();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOpen(const char * fileName, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::open(fileName);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshMerge(const char * fileName, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::merge(fileName);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshWrite(const char * fileName, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::write(fileName);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshClear(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::clear();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOptionSetNumber(const char * name, const double value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::option::setNumber(name, value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOptionGetNumber(const char * name, double * value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::option::getNumber(name, *value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOptionSetString(const char * name, const char * value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::option::setString(name, value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOptionGetString(const char * name, char ** value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::string api_value_;
        gmsh::option::getString(name, api_value_);
        *value = strdup(api_value_.c_str());
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelAdd(const char * name, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::add(name);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelRemove(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::remove();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelList(char *** names, size_t * names_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<std::string> api_names_;
        gmsh::model::list(api_names_);
        vectorstring2charptrptr(api_names_, names, names_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelSetCurrent(const char * name, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::setCurrent(name);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetEntities(int ** dimTags, size_t * dimTags_n, const int dim, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_;
        gmsh::model::getEntities(api_dimTags_, dim);
        vectorpair2intptr(api_dimTags_, dimTags, dimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetPhysicalGroups(int ** dimTags, size_t * dimTags_n, const int dim, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_;
        gmsh::model::getPhysicalGroups(api_dimTags_, dim);
        vectorpair2intptr(api_dimTags_, dimTags, dimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetEntitiesForPhysicalGroup(const int dim, const int tag, int ** tags, size_t * tags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_tags_;
        gmsh::model::getEntitiesForPhysicalGroup(dim, tag, api_tags_);
        vector2ptr(api_tags_, tags, tags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetPhysicalGroupsForEntity(const int dim, const int tag, int ** physicalTags, size_t * physicalTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_physicalTags_;
        gmsh::model::getPhysicalGroupsForEntity(dim, tag, api_physicalTags_);
        vector2ptr(api_physicalTags_, physicalTags, physicalTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshModelAddPhysicalGroup(const int dim, int * tags, size_t tags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_tags_(tags, tags + tags_n);
        result_api_ = gmsh::model::addPhysicalGroup(dim, api_tags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshModelSetPhysicalName(const int dim, const int tag, const char * name, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::setPhysicalName(dim, tag, name);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetPhysicalName(const int dim, const int tag, char ** name, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::string api_name_;
        gmsh::model::getPhysicalName(dim, tag, api_name_);
        *name = strdup(api_name_.c_str());
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetBoundary(int * dimTags, size_t dimTags_n, int ** outDimTags, size_t * outDimTags_n, const int combined, const int oriented, const int recursive, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::getBoundary(api_dimTags_, api_outDimTags_, combined, oriented, recursive);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetEntitiesInBoundingBox(const double xmin, const double ymin, const double zmin, const double xmax, const double ymax, const double zmax, int ** tags, size_t * tags_n, const int dim, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_tags_;
        gmsh::model::getEntitiesInBoundingBox(xmin, ymin, zmin, xmax, ymax, zmax, api_tags_, dim);
        vectorpair2intptr(api_tags_, tags, tags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetBoundingBox(const int dim, const int tag, double * xmin, double * ymin, double * zmin, double * xmax, double * ymax, double * zmax, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::getBoundingBox(dim, tag, *xmin, *ymin, *zmin, *xmax, *ymax, *zmax);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshModelGetDimension(int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::getDimension();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelAddDiscreteEntity(const int dim, const int tag, int * boundary, size_t boundary_n, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_boundary_(boundary, boundary + boundary_n);
        result_api_ = gmsh::model::addDiscreteEntity(dim, tag, api_boundary_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshModelRemoveEntities(int * dimTags, size_t dimTags_n, const int recursive, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::removeEntities(api_dimTags_, recursive);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetType(const int dim, const int tag, char ** entityType, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::string api_entityType_;
        gmsh::model::getType(dim, tag, api_entityType_);
        *entityType = strdup(api_entityType_.c_str());
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetParent(const int dim, const int tag, int * parentDim, int * parentTag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::getParent(dim, tag, *parentDim, *parentTag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetValue(const int dim, const int tag, double * parametricCoord, size_t parametricCoord_n, double ** points, size_t * points_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_parametricCoord_(parametricCoord, parametricCoord + parametricCoord_n);
        std::vector<double> api_points_;
        gmsh::model::getValue(dim, tag, api_parametricCoord_, api_points_);
        vector2ptr(api_points_, points, points_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetDerivative(const int dim, const int tag, double * parametricCoord, size_t parametricCoord_n, double ** derivatives, size_t * derivatives_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_parametricCoord_(parametricCoord, parametricCoord + parametricCoord_n);
        std::vector<double> api_derivatives_;
        gmsh::model::getDerivative(dim, tag, api_parametricCoord_, api_derivatives_);
        vector2ptr(api_derivatives_, derivatives, derivatives_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetCurvature(const int dim, const int tag, double * parametricCoord, size_t parametricCoord_n, double ** curvatures, size_t * curvatures_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_parametricCoord_(parametricCoord, parametricCoord + parametricCoord_n);
        std::vector<double> api_curvatures_;
        gmsh::model::getCurvature(dim, tag, api_parametricCoord_, api_curvatures_);
        vector2ptr(api_curvatures_, curvatures, curvatures_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetPrincipalCurvatures(const int tag, double * parametricCoord, size_t parametricCoord_n, double ** curvatureMax, size_t * curvatureMax_n, double ** curvatureMin, size_t * curvatureMin_n, double ** directionMax, size_t * directionMax_n, double ** directionMin, size_t * directionMin_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_parametricCoord_(parametricCoord, parametricCoord + parametricCoord_n);
        std::vector<double> api_curvatureMax_;
        std::vector<double> api_curvatureMin_;
        std::vector<double> api_directionMax_;
        std::vector<double> api_directionMin_;
        gmsh::model::getPrincipalCurvatures(tag, api_parametricCoord_, api_curvatureMax_, api_curvatureMin_, api_directionMax_, api_directionMin_);
        vector2ptr(api_curvatureMax_, curvatureMax, curvatureMax_n);
        vector2ptr(api_curvatureMin_, curvatureMin, curvatureMin_n);
        vector2ptr(api_directionMax_, directionMax, directionMax_n);
        vector2ptr(api_directionMin_, directionMin, directionMin_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGetNormal(const int tag, double * parametricCoord, size_t parametricCoord_n, double ** normals, size_t * normals_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_parametricCoord_(parametricCoord, parametricCoord + parametricCoord_n);
        std::vector<double> api_normals_;
        gmsh::model::getNormal(tag, api_parametricCoord_, api_normals_);
        vector2ptr(api_normals_, normals, normals_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGenerate(const int dim, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::generate(dim);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshPartition(const int numPart, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::partition(numPart);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshRefine(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::refine();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetOrder(const int order, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::setOrder(order);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetLastEntityError(int ** dimTags, size_t * dimTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_;
        gmsh::model::mesh::getLastEntityError(api_dimTags_);
        vectorpair2intptr(api_dimTags_, dimTags, dimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetLastNodeError(int ** nodeTags, size_t * nodeTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_nodeTags_;
        gmsh::model::mesh::getLastNodeError(api_nodeTags_);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetNodes(int ** nodeTags, size_t * nodeTags_n, double ** coord, size_t * coord_n, double ** parametricCoord, size_t * parametricCoord_n, const int dim, const int tag, const int includeBoundary, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_nodeTags_;
        std::vector<double> api_coord_;
        std::vector<double> api_parametricCoord_;
        gmsh::model::mesh::getNodes(api_nodeTags_, api_coord_, api_parametricCoord_, dim, tag, includeBoundary);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
        vector2ptr(api_coord_, coord, coord_n);
        vector2ptr(api_parametricCoord_, parametricCoord, parametricCoord_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetNode(const int nodeTag, double ** coord, size_t * coord_n, double ** parametricCoord, size_t * parametricCoord_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_coord_;
        std::vector<double> api_parametricCoord_;
        gmsh::model::mesh::getNode(nodeTag, api_coord_, api_parametricCoord_);
        vector2ptr(api_coord_, coord, coord_n);
        vector2ptr(api_parametricCoord_, parametricCoord, parametricCoord_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshRebuildNodeCache(const int onlyIfNecessary, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::rebuildNodeCache(onlyIfNecessary);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetNodesForPhysicalGroup(const int dim, const int tag, int ** nodeTags, size_t * nodeTags_n, double ** coord, size_t * coord_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_nodeTags_;
        std::vector<double> api_coord_;
        gmsh::model::mesh::getNodesForPhysicalGroup(dim, tag, api_nodeTags_, api_coord_);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
        vector2ptr(api_coord_, coord, coord_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetNodes(const int dim, const int tag, int * nodeTags, size_t nodeTags_n, double * coord, size_t coord_n, double * parametricCoord, size_t parametricCoord_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_nodeTags_(nodeTags, nodeTags + nodeTags_n);
        std::vector<double> api_coord_(coord, coord + coord_n);
        std::vector<double> api_parametricCoord_(parametricCoord, parametricCoord + parametricCoord_n);
        gmsh::model::mesh::setNodes(dim, tag, api_nodeTags_, api_coord_, api_parametricCoord_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshReclassifyNodes(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::reclassifyNodes();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetElements(int ** elementTypes, size_t * elementTypes_n, int *** elementTags, size_t ** elementTags_n, size_t *elementTags_nn, int *** nodeTags, size_t ** nodeTags_n, size_t *nodeTags_nn, const int dim, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_elementTypes_;
        std::vector<std::vector<int> > api_elementTags_;
        std::vector<std::vector<int> > api_nodeTags_;
        gmsh::model::mesh::getElements(api_elementTypes_, api_elementTags_, api_nodeTags_, dim, tag);
        vector2ptr(api_elementTypes_, elementTypes, elementTypes_n);
        vectorvector2ptrptr(api_elementTags_, elementTags, elementTags_n, elementTags_nn);
        vectorvector2ptrptr(api_nodeTags_, nodeTags, nodeTags_n, nodeTags_nn);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetElement(const int elementTag, int * elementType, int ** nodeTags, size_t * nodeTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_nodeTags_;
        gmsh::model::mesh::getElement(elementTag, *elementType, api_nodeTags_);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetElementByCoordinates(const double x, const double y, const double z, int * elementTag, int * elementType, int ** nodeTags, size_t * nodeTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_nodeTags_;
        gmsh::model::mesh::getElementByCoordinates(x, y, z, *elementTag, *elementType, api_nodeTags_);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetElements(const int dim, const int tag, int * elementTypes, size_t elementTypes_n, const int ** elementTags, const size_t * elementTags_n, size_t elementTags_nn, const int ** nodeTags, const size_t * nodeTags_n, size_t nodeTags_nn, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_elementTypes_(elementTypes, elementTypes + elementTypes_n);
        std::vector<std::vector<int> > api_elementTags_(elementTags_nn);
        for(size_t i = 0; i < elementTags_nn; ++i)
          api_elementTags_[i] = std::vector<int>(elementTags[i], elementTags[i] + elementTags_n[i]);
        std::vector<std::vector<int> > api_nodeTags_(nodeTags_nn);
        for(size_t i = 0; i < nodeTags_nn; ++i)
          api_nodeTags_[i] = std::vector<int>(nodeTags[i], nodeTags[i] + nodeTags_n[i]);
        gmsh::model::mesh::setElements(dim, tag, api_elementTypes_, api_elementTags_, api_nodeTags_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetElementTypes(int ** elementTypes, size_t * elementTypes_n, const int dim, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_elementTypes_;
        gmsh::model::mesh::getElementTypes(api_elementTypes_, dim, tag);
        vector2ptr(api_elementTypes_, elementTypes, elementTypes_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetElementProperties(const int elementType, char ** elementName, int * dim, int * order, int * numNodes, double ** parametricCoord, size_t * parametricCoord_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::string api_elementName_;
        std::vector<double> api_parametricCoord_;
        gmsh::model::mesh::getElementProperties(elementType, api_elementName_, *dim, *order, *numNodes, api_parametricCoord_);
        *elementName = strdup(api_elementName_.c_str());
        vector2ptr(api_parametricCoord_, parametricCoord, parametricCoord_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetElementsByType(const int elementType, int ** elementTags, size_t * elementTags_n, int ** nodeTags, size_t * nodeTags_n, const int tag, const size_t task, const size_t numTasks, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_elementTags_;
        std::vector<int> api_nodeTags_;
        gmsh::model::mesh::getElementsByType(elementType, api_elementTags_, api_nodeTags_, tag, task, numTasks);
        vector2ptr(api_elementTags_, elementTags, elementTags_n);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshPreallocateElementsByType(const int elementType, const int elementTag, const int nodeTag, int ** elementTags, size_t * elementTags_n, int ** nodeTags, size_t * nodeTags_n, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_elementTags_;
        std::vector<int> api_nodeTags_;
        gmsh::model::mesh::preallocateElementsByType(elementType, elementTag, nodeTag, api_elementTags_, api_nodeTags_, tag);
        vector2ptr(api_elementTags_, elementTags, elementTags_n);
        vector2ptr(api_nodeTags_, nodeTags, nodeTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetJacobians(const int elementType, const char * integrationType, double ** jacobians, size_t * jacobians_n, double ** determinants, size_t * determinants_n, double ** points, size_t * points_n, const int tag, const size_t task, const size_t numTasks, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_jacobians_;
        std::vector<double> api_determinants_;
        std::vector<double> api_points_;
        gmsh::model::mesh::getJacobians(elementType, integrationType, api_jacobians_, api_determinants_, api_points_, tag, task, numTasks);
        vector2ptr(api_jacobians_, jacobians, jacobians_n);
        vector2ptr(api_determinants_, determinants, determinants_n);
        vector2ptr(api_points_, points, points_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshPreallocateJacobians(const int elementType, const char * integrationType, const int jacobian, const int determinant, const int point, double ** jacobians, size_t * jacobians_n, double ** determinants, size_t * determinants_n, double ** points, size_t * points_n, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_jacobians_;
        std::vector<double> api_determinants_;
        std::vector<double> api_points_;
        gmsh::model::mesh::preallocateJacobians(elementType, integrationType, jacobian, determinant, point, api_jacobians_, api_determinants_, api_points_, tag);
        vector2ptr(api_jacobians_, jacobians, jacobians_n);
        vector2ptr(api_determinants_, determinants, determinants_n);
        vector2ptr(api_points_, points, points_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetBasisFunctions(const int elementType, const char * integrationType, const char * functionSpaceType, double ** integrationPoints, size_t * integrationPoints_n, int * numComponents, double ** basisFunctions, size_t * basisFunctions_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_integrationPoints_;
        std::vector<double> api_basisFunctions_;
        gmsh::model::mesh::getBasisFunctions(elementType, integrationType, functionSpaceType, api_integrationPoints_, *numComponents, api_basisFunctions_);
        vector2ptr(api_integrationPoints_, integrationPoints, integrationPoints_n);
        vector2ptr(api_basisFunctions_, basisFunctions, basisFunctions_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshPrecomputeBasisFunctions(const int elementType, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::precomputeBasisFunctions(elementType);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetBarycenters(const int elementType, const int tag, const int fast, const int primary, double ** barycenters, size_t * barycenters_n, const size_t task, const size_t numTasks, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_barycenters_;
        gmsh::model::mesh::getBarycenters(elementType, tag, fast, primary, api_barycenters_, task, numTasks);
        vector2ptr(api_barycenters_, barycenters, barycenters_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshPreallocateBarycenters(const int elementType, double ** barycenters, size_t * barycenters_n, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_barycenters_;
        gmsh::model::mesh::preallocateBarycenters(elementType, api_barycenters_, tag);
        vector2ptr(api_barycenters_, barycenters, barycenters_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetSize(int * dimTags, size_t dimTags_n, const double size, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::mesh::setSize(api_dimTags_, size);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetTransfiniteCurve(const int tag, const int numNodes, const char * meshType, const double coef, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::setTransfiniteCurve(tag, numNodes, meshType, coef);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetTransfiniteSurface(const int tag, const char * arrangement, int * cornerTags, size_t cornerTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_cornerTags_(cornerTags, cornerTags + cornerTags_n);
        gmsh::model::mesh::setTransfiniteSurface(tag, arrangement, api_cornerTags_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetTransfiniteVolume(const int tag, int * cornerTags, size_t cornerTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_cornerTags_(cornerTags, cornerTags + cornerTags_n);
        gmsh::model::mesh::setTransfiniteVolume(tag, api_cornerTags_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetRecombine(const int dim, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::setRecombine(dim, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetSmoothing(const int dim, const int tag, const int val, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::setSmoothing(dim, tag, val);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetReverse(const int dim, const int tag, const int val, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::setReverse(dim, tag, val);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetOutwardOrientation(const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::setOutwardOrientation(tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshEmbed(const int dim, int * tags, size_t tags_n, const int inDim, const int inTag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_tags_(tags, tags + tags_n);
        gmsh::model::mesh::embed(dim, api_tags_, inDim, inTag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshReorderElements(const int elementType, const int tag, int * ordering, size_t ordering_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_ordering_(ordering, ordering + ordering_n);
        gmsh::model::mesh::reorderElements(elementType, tag, api_ordering_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshRenumberNodes(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::renumberNodes();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshRenumberElements(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::renumberElements();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshSetPeriodic(const int dim, int * tags, size_t tags_n, int * tagsSource, size_t tagsSource_n, double * affineTransformation, size_t affineTransformation_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_tags_(tags, tags + tags_n);
        std::vector<int> api_tagsSource_(tagsSource, tagsSource + tagsSource_n);
        std::vector<double> api_affineTransformation_(affineTransformation, affineTransformation + affineTransformation_n);
        gmsh::model::mesh::setPeriodic(dim, api_tags_, api_tagsSource_, api_affineTransformation_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshGetPeriodicNodes(const int dim, const int tag, int * tagMaster, int ** nodes, size_t * nodes_n, double ** affineTransform, size_t * affineTransform_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_nodes_;
        std::vector<double> api_affineTransform_;
        gmsh::model::mesh::getPeriodicNodes(dim, tag, *tagMaster, api_nodes_, api_affineTransform_);
        vectorpair2intptr(api_nodes_, nodes, nodes_n);
        vector2ptr(api_affineTransform_, affineTransform, affineTransform_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshRemoveDuplicateNodes(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::removeDuplicateNodes();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshHomology(int * domainTags, size_t domainTags_n, int * subdomainTags, size_t subdomainTags_n, int * dims, size_t dims_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_domainTags_(domainTags, domainTags + domainTags_n);
        std::vector<int> api_subdomainTags_(subdomainTags, subdomainTags + subdomainTags_n);
        std::vector<int> api_dims_(dims, dims + dims_n);
        gmsh::model::mesh::homology(api_domainTags_, api_subdomainTags_, api_dims_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshCohomology(int * domainTags, size_t domainTags_n, int * subdomainTags, size_t subdomainTags_n, int * dims, size_t dims_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_domainTags_(domainTags, domainTags + domainTags_n);
        std::vector<int> api_subdomainTags_(subdomainTags, subdomainTags + subdomainTags_n);
        std::vector<int> api_dims_(dims, dims + dims_n);
        gmsh::model::mesh::cohomology(api_domainTags_, api_subdomainTags_, api_dims_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshModelMeshFieldAdd(const char * fieldType, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::mesh::field::add(fieldType, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshModelMeshFieldRemove(const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::field::remove(tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshFieldSetNumber(const int tag, const char * option, const double value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::field::setNumber(tag, option, value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshFieldSetString(const int tag, const char * option, const char * value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::field::setString(tag, option, value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshFieldSetNumbers(const int tag, const char * option, double * value, size_t value_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_value_(value, value + value_n);
        gmsh::model::mesh::field::setNumbers(tag, option, api_value_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshFieldSetAsBackgroundMesh(const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::field::setAsBackgroundMesh(tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelMeshFieldSetAsBoundaryLayer(const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::mesh::field::setAsBoundaryLayer(tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshModelGeoAddPoint(const double x, const double y, const double z, const double meshSize, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::geo::addPoint(x, y, z, meshSize, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddLine(const int startTag, const int endTag, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::geo::addLine(startTag, endTag, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddCircleArc(const int startTag, const int centerTag, const int endTag, const int tag, const double nx, const double ny, const double nz, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::geo::addCircleArc(startTag, centerTag, endTag, tag, nx, ny, nz);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddEllipseArc(const int startTag, const int centerTag, const int majorTag, const int endTag, const int tag, const double nx, const double ny, const double nz, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::geo::addEllipseArc(startTag, centerTag, majorTag, endTag, tag, nx, ny, nz);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddSpline(int * pointTags, size_t pointTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_pointTags_(pointTags, pointTags + pointTags_n);
        result_api_ = gmsh::model::geo::addSpline(api_pointTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddBSpline(int * pointTags, size_t pointTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_pointTags_(pointTags, pointTags + pointTags_n);
        result_api_ = gmsh::model::geo::addBSpline(api_pointTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddBezier(int * pointTags, size_t pointTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_pointTags_(pointTags, pointTags + pointTags_n);
        result_api_ = gmsh::model::geo::addBezier(api_pointTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddCurveLoop(int * curveTags, size_t curveTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_curveTags_(curveTags, curveTags + curveTags_n);
        result_api_ = gmsh::model::geo::addCurveLoop(api_curveTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddPlaneSurface(int * wireTags, size_t wireTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_wireTags_(wireTags, wireTags + wireTags_n);
        result_api_ = gmsh::model::geo::addPlaneSurface(api_wireTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddSurfaceFilling(int * wireTags, size_t wireTags_n, const int tag, const int sphereCenterTag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_wireTags_(wireTags, wireTags + wireTags_n);
        result_api_ = gmsh::model::geo::addSurfaceFilling(api_wireTags_, tag, sphereCenterTag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddSurfaceLoop(int * surfaceTags, size_t surfaceTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_surfaceTags_(surfaceTags, surfaceTags + surfaceTags_n);
        result_api_ = gmsh::model::geo::addSurfaceLoop(api_surfaceTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelGeoAddVolume(int * shellTags, size_t shellTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_shellTags_(shellTags, shellTags + shellTags_n);
        result_api_ = gmsh::model::geo::addVolume(api_shellTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshModelGeoExtrude(int * dimTags, size_t dimTags_n, const double dx, const double dy, const double dz, int ** outDimTags, size_t * outDimTags_n, int * numElements, size_t numElements_n, double * heights, size_t heights_n, const int recombine, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<int> api_numElements_(numElements, numElements + numElements_n);
        std::vector<double> api_heights_(heights, heights + heights_n);
        gmsh::model::geo::extrude(api_dimTags_, dx, dy, dz, api_outDimTags_, api_numElements_, api_heights_, recombine);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoRevolve(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double ax, const double ay, const double az, const double angle, int ** outDimTags, size_t * outDimTags_n, int * numElements, size_t numElements_n, double * heights, size_t heights_n, const int recombine, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<int> api_numElements_(numElements, numElements + numElements_n);
        std::vector<double> api_heights_(heights, heights + heights_n);
        gmsh::model::geo::revolve(api_dimTags_, x, y, z, ax, ay, az, angle, api_outDimTags_, api_numElements_, api_heights_, recombine);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoTwist(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double dx, const double dy, const double dz, const double ax, const double ay, const double az, const double angle, int ** outDimTags, size_t * outDimTags_n, int * numElements, size_t numElements_n, double * heights, size_t heights_n, const int recombine, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<int> api_numElements_(numElements, numElements + numElements_n);
        std::vector<double> api_heights_(heights, heights + heights_n);
        gmsh::model::geo::twist(api_dimTags_, x, y, z, dx, dy, dz, ax, ay, az, angle, api_outDimTags_, api_numElements_, api_heights_, recombine);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoTranslate(int * dimTags, size_t dimTags_n, const double dx, const double dy, const double dz, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::geo::translate(api_dimTags_, dx, dy, dz);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoRotate(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double ax, const double ay, const double az, const double angle, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::geo::rotate(api_dimTags_, x, y, z, ax, ay, az, angle);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoDilate(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double a, const double b, const double c, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::geo::dilate(api_dimTags_, x, y, z, a, b, c);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoSymmetry(int * dimTags, size_t dimTags_n, const double a, const double b, const double c, const double d, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::geo::symmetry(api_dimTags_, a, b, c, d);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoCopy(int * dimTags, size_t dimTags_n, int ** outDimTags, size_t * outDimTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::geo::copy(api_dimTags_, api_outDimTags_);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoRemove(int * dimTags, size_t dimTags_n, const int recursive, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::geo::remove(api_dimTags_, recursive);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoRemoveAllDuplicates(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::geo::removeAllDuplicates();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoSynchronize(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::geo::synchronize();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetSize(int * dimTags, size_t dimTags_n, const double size, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::geo::mesh::setSize(api_dimTags_, size);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetTransfiniteCurve(const int tag, const int nPoints, const char * meshType, const double coef, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::geo::mesh::setTransfiniteCurve(tag, nPoints, meshType, coef);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetTransfiniteSurface(const int tag, const char * arrangement, int * cornerTags, size_t cornerTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_cornerTags_(cornerTags, cornerTags + cornerTags_n);
        gmsh::model::geo::mesh::setTransfiniteSurface(tag, arrangement, api_cornerTags_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetTransfiniteVolume(const int tag, int * cornerTags, size_t cornerTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_cornerTags_(cornerTags, cornerTags + cornerTags_n);
        gmsh::model::geo::mesh::setTransfiniteVolume(tag, api_cornerTags_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetRecombine(const int dim, const int tag, const double angle, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::geo::mesh::setRecombine(dim, tag, angle);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetSmoothing(const int dim, const int tag, const int val, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::geo::mesh::setSmoothing(dim, tag, val);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelGeoMeshSetReverse(const int dim, const int tag, const int val, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::geo::mesh::setReverse(dim, tag, val);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshModelOccAddPoint(const double x, const double y, const double z, const double meshSize, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addPoint(x, y, z, meshSize, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddLine(const int startTag, const int endTag, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addLine(startTag, endTag, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddCircleArc(const int startTag, const int centerTag, const int endTag, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addCircleArc(startTag, centerTag, endTag, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddCircle(const double x, const double y, const double z, const double r, const int tag, const double angle1, const double angle2, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addCircle(x, y, z, r, tag, angle1, angle2);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddEllipseArc(const int startTag, const int centerTag, const int endTag, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addEllipseArc(startTag, centerTag, endTag, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddEllipse(const double x, const double y, const double z, const double r1, const double r2, const int tag, const double angle1, const double angle2, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addEllipse(x, y, z, r1, r2, tag, angle1, angle2);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddSpline(int * pointTags, size_t pointTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_pointTags_(pointTags, pointTags + pointTags_n);
        result_api_ = gmsh::model::occ::addSpline(api_pointTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddBSpline(int * pointTags, size_t pointTags_n, const int tag, const int degree, double * weights, size_t weights_n, double * knots, size_t knots_n, int * multiplicities, size_t multiplicities_n, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_pointTags_(pointTags, pointTags + pointTags_n);
        std::vector<double> api_weights_(weights, weights + weights_n);
        std::vector<double> api_knots_(knots, knots + knots_n);
        std::vector<int> api_multiplicities_(multiplicities, multiplicities + multiplicities_n);
        result_api_ = gmsh::model::occ::addBSpline(api_pointTags_, tag, degree, api_weights_, api_knots_, api_multiplicities_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddBezier(int * pointTags, size_t pointTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_pointTags_(pointTags, pointTags + pointTags_n);
        result_api_ = gmsh::model::occ::addBezier(api_pointTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddWire(int * curveTags, size_t curveTags_n, const int tag, const int checkClosed, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_curveTags_(curveTags, curveTags + curveTags_n);
        result_api_ = gmsh::model::occ::addWire(api_curveTags_, tag, checkClosed);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddCurveLoop(int * curveTags, size_t curveTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_curveTags_(curveTags, curveTags + curveTags_n);
        result_api_ = gmsh::model::occ::addCurveLoop(api_curveTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddRectangle(const double x, const double y, const double z, const double dx, const double dy, const int tag, const double roundedRadius, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addRectangle(x, y, z, dx, dy, tag, roundedRadius);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddDisk(const double xc, const double yc, const double zc, const double rx, const double ry, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addDisk(xc, yc, zc, rx, ry, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddPlaneSurface(int * wireTags, size_t wireTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_wireTags_(wireTags, wireTags + wireTags_n);
        result_api_ = gmsh::model::occ::addPlaneSurface(api_wireTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddSurfaceFilling(const int wireTag, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addSurfaceFilling(wireTag, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddSurfaceLoop(int * surfaceTags, size_t surfaceTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_surfaceTags_(surfaceTags, surfaceTags + surfaceTags_n);
        result_api_ = gmsh::model::occ::addSurfaceLoop(api_surfaceTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddVolume(int * shellTags, size_t shellTags_n, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_shellTags_(shellTags, shellTags + shellTags_n);
        result_api_ = gmsh::model::occ::addVolume(api_shellTags_, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddSphere(const double xc, const double yc, const double zc, const double radius, const int tag, const double angle1, const double angle2, const double angle3, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addSphere(xc, yc, zc, radius, tag, angle1, angle2, angle3);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddBox(const double x, const double y, const double z, const double dx, const double dy, const double dz, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addBox(x, y, z, dx, dy, dz, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddCylinder(const double x, const double y, const double z, const double dx, const double dy, const double dz, const double r, const int tag, const double angle, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addCylinder(x, y, z, dx, dy, dz, r, tag, angle);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddCone(const double x, const double y, const double z, const double dx, const double dy, const double dz, const double r1, const double r2, const int tag, const double angle, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addCone(x, y, z, dx, dy, dz, r1, r2, tag, angle);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddWedge(const double x, const double y, const double z, const double dx, const double dy, const double dz, const int tag, const double ltx, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addWedge(x, y, z, dx, dy, dz, tag, ltx);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API int gmshModelOccAddTorus(const double x, const double y, const double z, const double r1, const double r2, const int tag, const double angle, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::model::occ::addTorus(x, y, z, r1, r2, tag, angle);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshModelOccAddThruSections(int * wireTags, size_t wireTags_n, int ** outDimTags, size_t * outDimTags_n, const int tag, const int makeSolid, const int makeRuled, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_wireTags_(wireTags, wireTags + wireTags_n);
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::addThruSections(api_wireTags_, api_outDimTags_, tag, makeSolid, makeRuled);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccAddThickSolid(const int volumeTag, int * excludeSurfaceTags, size_t excludeSurfaceTags_n, const double offset, int ** outDimTags, size_t * outDimTags_n, const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_excludeSurfaceTags_(excludeSurfaceTags, excludeSurfaceTags + excludeSurfaceTags_n);
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::addThickSolid(volumeTag, api_excludeSurfaceTags_, offset, api_outDimTags_, tag);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccExtrude(int * dimTags, size_t dimTags_n, const double dx, const double dy, const double dz, int ** outDimTags, size_t * outDimTags_n, int * numElements, size_t numElements_n, double * heights, size_t heights_n, const int recombine, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<int> api_numElements_(numElements, numElements + numElements_n);
        std::vector<double> api_heights_(heights, heights + heights_n);
        gmsh::model::occ::extrude(api_dimTags_, dx, dy, dz, api_outDimTags_, api_numElements_, api_heights_, recombine);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccRevolve(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double ax, const double ay, const double az, const double angle, int ** outDimTags, size_t * outDimTags_n, int * numElements, size_t numElements_n, double * heights, size_t heights_n, const int recombine, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<int> api_numElements_(numElements, numElements + numElements_n);
        std::vector<double> api_heights_(heights, heights + heights_n);
        gmsh::model::occ::revolve(api_dimTags_, x, y, z, ax, ay, az, angle, api_outDimTags_, api_numElements_, api_heights_, recombine);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccAddPipe(int * dimTags, size_t dimTags_n, const int wireTag, int ** outDimTags, size_t * outDimTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::addPipe(api_dimTags_, wireTag, api_outDimTags_);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccFillet(int * volumeTags, size_t volumeTags_n, int * curveTags, size_t curveTags_n, double * radii, size_t radii_n, int ** outDimTags, size_t * outDimTags_n, const int removeVolume, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_volumeTags_(volumeTags, volumeTags + volumeTags_n);
        std::vector<int> api_curveTags_(curveTags, curveTags + curveTags_n);
        std::vector<double> api_radii_(radii, radii + radii_n);
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::fillet(api_volumeTags_, api_curveTags_, api_radii_, api_outDimTags_, removeVolume);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccChamfer(int * volumeTags, size_t volumeTags_n, int * curveTags, size_t curveTags_n, int * surfaceTags, size_t surfaceTags_n, double * distances, size_t distances_n, int ** outDimTags, size_t * outDimTags_n, const int removeVolume, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_volumeTags_(volumeTags, volumeTags + volumeTags_n);
        std::vector<int> api_curveTags_(curveTags, curveTags + curveTags_n);
        std::vector<int> api_surfaceTags_(surfaceTags, surfaceTags + surfaceTags_n);
        std::vector<double> api_distances_(distances, distances + distances_n);
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::chamfer(api_volumeTags_, api_curveTags_, api_surfaceTags_, api_distances_, api_outDimTags_, removeVolume);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccFuse(int * objectDimTags, size_t objectDimTags_n, int * toolDimTags, size_t toolDimTags_n, int ** outDimTags, size_t * outDimTags_n, int *** outDimTagsMap, size_t ** outDimTagsMap_n, size_t *outDimTagsMap_nn, const int tag, const int removeObject, const int removeTool, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_objectDimTags_(objectDimTags_n/2);
        for(size_t i = 0; i < objectDimTags_n/2; ++i){
          api_objectDimTags_[i].first = objectDimTags[i * 2 + 0];
          api_objectDimTags_[i].second = objectDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_toolDimTags_(toolDimTags_n/2);
        for(size_t i = 0; i < toolDimTags_n/2; ++i){
          api_toolDimTags_[i].first = toolDimTags[i * 2 + 0];
          api_toolDimTags_[i].second = toolDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<gmsh::vectorpair >api_outDimTagsMap_;
        gmsh::model::occ::fuse(api_objectDimTags_, api_toolDimTags_, api_outDimTags_, api_outDimTagsMap_, tag, removeObject, removeTool);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
        vectorvectorpair2intptrptr(api_outDimTagsMap_, outDimTagsMap, outDimTagsMap_n, outDimTagsMap_nn);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccIntersect(int * objectDimTags, size_t objectDimTags_n, int * toolDimTags, size_t toolDimTags_n, int ** outDimTags, size_t * outDimTags_n, int *** outDimTagsMap, size_t ** outDimTagsMap_n, size_t *outDimTagsMap_nn, const int tag, const int removeObject, const int removeTool, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_objectDimTags_(objectDimTags_n/2);
        for(size_t i = 0; i < objectDimTags_n/2; ++i){
          api_objectDimTags_[i].first = objectDimTags[i * 2 + 0];
          api_objectDimTags_[i].second = objectDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_toolDimTags_(toolDimTags_n/2);
        for(size_t i = 0; i < toolDimTags_n/2; ++i){
          api_toolDimTags_[i].first = toolDimTags[i * 2 + 0];
          api_toolDimTags_[i].second = toolDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<gmsh::vectorpair >api_outDimTagsMap_;
        gmsh::model::occ::intersect(api_objectDimTags_, api_toolDimTags_, api_outDimTags_, api_outDimTagsMap_, tag, removeObject, removeTool);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
        vectorvectorpair2intptrptr(api_outDimTagsMap_, outDimTagsMap, outDimTagsMap_n, outDimTagsMap_nn);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccCut(int * objectDimTags, size_t objectDimTags_n, int * toolDimTags, size_t toolDimTags_n, int ** outDimTags, size_t * outDimTags_n, int *** outDimTagsMap, size_t ** outDimTagsMap_n, size_t *outDimTagsMap_nn, const int tag, const int removeObject, const int removeTool, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_objectDimTags_(objectDimTags_n/2);
        for(size_t i = 0; i < objectDimTags_n/2; ++i){
          api_objectDimTags_[i].first = objectDimTags[i * 2 + 0];
          api_objectDimTags_[i].second = objectDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_toolDimTags_(toolDimTags_n/2);
        for(size_t i = 0; i < toolDimTags_n/2; ++i){
          api_toolDimTags_[i].first = toolDimTags[i * 2 + 0];
          api_toolDimTags_[i].second = toolDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<gmsh::vectorpair >api_outDimTagsMap_;
        gmsh::model::occ::cut(api_objectDimTags_, api_toolDimTags_, api_outDimTags_, api_outDimTagsMap_, tag, removeObject, removeTool);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
        vectorvectorpair2intptrptr(api_outDimTagsMap_, outDimTagsMap, outDimTagsMap_n, outDimTagsMap_nn);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccFragment(int * objectDimTags, size_t objectDimTags_n, int * toolDimTags, size_t toolDimTags_n, int ** outDimTags, size_t * outDimTags_n, int *** outDimTagsMap, size_t ** outDimTagsMap_n, size_t *outDimTagsMap_nn, const int tag, const int removeObject, const int removeTool, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_objectDimTags_(objectDimTags_n/2);
        for(size_t i = 0; i < objectDimTags_n/2; ++i){
          api_objectDimTags_[i].first = objectDimTags[i * 2 + 0];
          api_objectDimTags_[i].second = objectDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_toolDimTags_(toolDimTags_n/2);
        for(size_t i = 0; i < toolDimTags_n/2; ++i){
          api_toolDimTags_[i].first = toolDimTags[i * 2 + 0];
          api_toolDimTags_[i].second = toolDimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        std::vector<gmsh::vectorpair >api_outDimTagsMap_;
        gmsh::model::occ::fragment(api_objectDimTags_, api_toolDimTags_, api_outDimTags_, api_outDimTagsMap_, tag, removeObject, removeTool);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
        vectorvectorpair2intptrptr(api_outDimTagsMap_, outDimTagsMap, outDimTagsMap_n, outDimTagsMap_nn);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccTranslate(int * dimTags, size_t dimTags_n, const double dx, const double dy, const double dz, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::occ::translate(api_dimTags_, dx, dy, dz);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccRotate(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double ax, const double ay, const double az, const double angle, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::occ::rotate(api_dimTags_, x, y, z, ax, ay, az, angle);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccDilate(int * dimTags, size_t dimTags_n, const double x, const double y, const double z, const double a, const double b, const double c, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::occ::dilate(api_dimTags_, x, y, z, a, b, c);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccSymmetry(int * dimTags, size_t dimTags_n, const double a, const double b, const double c, const double d, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::occ::symmetry(api_dimTags_, a, b, c, d);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccCopy(int * dimTags, size_t dimTags_n, int ** outDimTags, size_t * outDimTags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::copy(api_dimTags_, api_outDimTags_);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccRemove(int * dimTags, size_t dimTags_n, const int recursive, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::occ::remove(api_dimTags_, recursive);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccRemoveAllDuplicates(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::occ::removeAllDuplicates();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccImportShapes(const char * fileName, int ** outDimTags, size_t * outDimTags_n, const int highestDimOnly, const char * format, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::importShapes(fileName, api_outDimTags_, highestDimOnly, format);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccImportShapesNativePointer(const void * shape, int ** outDimTags, size_t * outDimTags_n, const int highestDimOnly, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_outDimTags_;
        gmsh::model::occ::importShapesNativePointer(shape, api_outDimTags_, highestDimOnly);
        vectorpair2intptr(api_outDimTags_, outDimTags, outDimTags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccSetMeshSize(int * dimTags, size_t dimTags_n, const double size, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::vectorpair api_dimTags_(dimTags_n/2);
        for(size_t i = 0; i < dimTags_n/2; ++i){
          api_dimTags_[i].first = dimTags[i * 2 + 0];
          api_dimTags_[i].second = dimTags[i * 2 + 1];
        }
        gmsh::model::occ::setMeshSize(api_dimTags_, size);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshModelOccSynchronize(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::model::occ::synchronize();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshViewAdd(const char * name, const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::view::add(name, tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshViewRemove(const int tag, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::view::remove(tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API int gmshViewGetIndex(const int tag, int * ierr)
    {
      int result_api_;
      if(ierr) *ierr = 0;
      try {
        result_api_ = gmsh::view::getIndex(tag);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
      return result_api_;
    }
    
    GMSH_API void gmshViewGetTags(int ** tags, size_t * tags_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_tags_;
        gmsh::view::getTags(api_tags_);
        vector2ptr(api_tags_, tags, tags_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshViewAddModelData(const int tag, const int step, const char * modelName, const char * dataType, int * tags, size_t tags_n, const double ** data, const size_t * data_n, size_t data_nn, const double time, const int numComponents, const int partition, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<int> api_tags_(tags, tags + tags_n);
        std::vector<std::vector<double> > api_data_(data_nn);
        for(size_t i = 0; i < data_nn; ++i)
          api_data_[i] = std::vector<double>(data[i], data[i] + data_n[i]);
        gmsh::view::addModelData(tag, step, modelName, dataType, api_tags_, api_data_, time, numComponents, partition);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshViewAddListData(const int tag, const char * dataType, const int numEle, double * data, size_t data_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_data_(data, data + data_n);
        gmsh::view::addListData(tag, dataType, numEle, api_data_);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshViewGetListData(const int tag, char *** dataType, size_t * dataType_n, int ** numElements, size_t * numElements_n, double *** data, size_t ** data_n, size_t *data_nn, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<std::string> api_dataType_;
        std::vector<int> api_numElements_;
        std::vector<std::vector<double> > api_data_;
        gmsh::view::getListData(tag, api_dataType_, api_numElements_, api_data_);
        vectorstring2charptrptr(api_dataType_, dataType, dataType_n);
        vector2ptr(api_numElements_, numElements, numElements_n);
        vectorvector2ptrptr(api_data_, data, data_n, data_nn);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshViewProbe(const int tag, const double x, const double y, const double z, double ** value, size_t * value_n, const int step, const int numComp, const int gradient, const double tolerance, double * xElemCoord, size_t xElemCoord_n, double * yElemCoord, size_t yElemCoord_n, double * zElemCoord, size_t zElemCoord_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<double> api_value_;
        std::vector<double> api_xElemCoord_(xElemCoord, xElemCoord + xElemCoord_n);
        std::vector<double> api_yElemCoord_(yElemCoord, yElemCoord + yElemCoord_n);
        std::vector<double> api_zElemCoord_(zElemCoord, zElemCoord + zElemCoord_n);
        gmsh::view::probe(tag, x, y, z, api_value_, step, numComp, gradient, tolerance, api_xElemCoord_, api_yElemCoord_, api_zElemCoord_);
        vector2ptr(api_value_, value, value_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshViewWrite(const int tag, const char * fileName, const int append, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::view::write(tag, fileName, append);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshPluginSetNumber(const char * name, const char * option, const double value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::plugin::setNumber(name, option, value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshPluginSetString(const char * name, const char * option, const char * value, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::plugin::setString(name, option, value);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshPluginRun(const char * name, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::plugin::run(name);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshGraphicsDraw(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::graphics::draw();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshFltkInitialize(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::fltk::initialize();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshFltkWait(const double time, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::fltk::wait(time);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshFltkRun(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::fltk::run();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOnelabGet(char ** data, const char * format, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::string api_data_;
        gmsh::onelab::get(api_data_, format);
        *data = strdup(api_data_.c_str());
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOnelabSet(const char * data, const char * format, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::onelab::set(data, format);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshOnelabRun(const char * name, const char * command, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::onelab::run(name, command);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshLoggerStart(char *** log, size_t * log_n, int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        std::vector<std::string> api_log_;
        gmsh::logger::start(api_log_);
        vectorstring2charptrptr(api_log_, log, log_n);
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }
    
    GMSH_API void gmshLoggerStop(int * ierr)
    {
      if(ierr) *ierr = 0;
      try {
        gmsh::logger::stop();
      }
      catch(int api_ierr_){
        if(ierr) *ierr = api_ierr_;
      }
    }