pure c

seamsh/gmsh.py

@@ -169,7 +169,7 @@ def _mesh_bgrid(domain: _geometry.Domain, mesh_size: _geometry.MeshSizeCallback,
     data = np.c_[xtri.swapaxes(1,2).reshape(-1,9),v.flatten()[tri]]
     view = gmsh.view.add("tri")
     gmsh.view.add_list_data(view, "ST", tri.shape[0], data.flatten())
-    gmsh.fltk.run()
+    #gmsh.fltk.run()
     field = gmsh.model.mesh.field.add("PostView")
     gmsh.model.mesh.field.setNumber(field, "ViewTag",view)
     gmsh.model.mesh.field.setAsBackgroundMesh(field)

seamshlib/CMakeLists.txt

@@ -19,10 +19,10 @@
 # see <http://www.gnu.org/licenses/>.
 
 cmake_minimum_required(VERSION 3.9)
-project(seamsh C CXX)
+project(seamsh C)
 add_library(seamsh SHARED
   seamsh.c
-  polymesh.cc
+  polymesh.c
   sort.c
-  robustPredicates.cpp
+  robustPredicates.c
   )

seamshlib/robustPredicates.cpp → seamshlib/robustPredicates.c

@@ -123,8 +123,6 @@
 #include <fpu_control.h>
 #endif /* LINUX */
 
-namespace robustPredicates
-{
 
 /* On some machines, the exact arithmetic routines might be defeated by the  */
 /*   use of internal extended precision floating-point registers.  Sometimes */
@@ -4845,5 +4843,3 @@ REAL orient4d(REAL* pa, REAL* pb, REAL* pc, REAL* pd, REAL* pe,
   return orient4dadapt(pa, pb, pc, pd, pe,
                        aheight, bheight, cheight, dheight, eheight, permanent);
 }
-
-} // end namespace

seamshlib/robustPredicates.h

@@ -7,12 +7,10 @@
 #define ROBUST_PREDICATES_H
 
 // namespace necessary to avoid conflicts with predicates used by Tetgen
-namespace robustPredicates {
-  double exactinit(int filter, double maxx, double maxy, double maxz);
-  double incircle(double *pa, double *pb, double *pc, double *pd);
-  double insphere(double *pa, double *pb, double *pc, double *pd, double *pe);
-  double orient2d(double *pa, double *pb, double *pc);
-  double orient3d(double *pa, double *pb, double *pc, double *pd);
-} // namespace robustPredicates
+double exactinit(int filter, double maxx, double maxy, double maxz);
+double incircle(double *pa, double *pb, double *pc, double *pd);
+double insphere(double *pa, double *pb, double *pc, double *pd, double *pe);
+double orient2d(double *pa, double *pb, double *pc);
+double orient3d(double *pa, double *pb, double *pc, double *pd);
 
 #endif

seamshlib/vector.h

@@ -93,10 +93,8 @@ static void _vectorRemoveFlag(void *m, const int *flag, int size) {
   }
   _vectorPop(m,size*r);
 }
-extern "C" {
 void quicksort (void *const pbase, size_t total_elems, size_t size,
             int (*cmp)(const void*, const void*, void*), void *arg);
-}
 
 #define vector_remove_flag(v,f,repeat) _vectorRemoveFlag((void*)v,f,repeat*sizeof(*v))
 #define vector_size(v) (_vectorSize((void*)v)/sizeof(*v))