replace VLAs

when compiling with cgns enabled c++14 is enabled and these were being flagged as warnings which were promotted to errors

test/convert.cc

@@ -23,6 +23,7 @@
 #include <getopt.h>
 #include <string.h>
 #include <stdio.h>
+#include <array> //std::array
 
 using namespace std;
 
@@ -246,7 +247,7 @@ void addFathersTag(pGModel simModel, pParMesh sim_mesh, apf::Mesh* simApfMesh, c
       int nvert=i;
       PList_delete(listV);
 
-      double coordNewPt[nvert][3];
+      std::vector<std::array<double,3>> coordNewPt(nvert,{0,0,0});
       for(i=0; i< nvert ; i++) {
         int* markedData;
         if(!EN_getDataPtr((pEntity)vrts[i],myFather,(void**)&markedData)){  // not sure about marked yet
@@ -347,13 +348,13 @@ void addFathersTag(pGModel simModel, pParMesh sim_mesh, apf::Mesh* simApfMesh, c
           int* vtxData = new int[1];
           vtxData[0] = count2D;
           EN_attachDataPtr((pEntity)vrts[i],myFather,(void*)vtxData);
-          V_coord(vrts[i],coordNewPt[i]);
+          V_coord(vrts[i],coordNewPt[i].data());
 
           fprintf ( fcr, "%.15E %.15E %d %d %d %d  \n", coordNewPt[i][0],coordNewPt[i][1], vClassDim, foundESTag, foundETag, foundEETag );
         }
       }
 
-      double coordFather[nvert][3];
+      std::vector<std::array<double,3>> coordFather(nvert,{0,0,0});
       int fatherIds[4]; //store the ids of the fathers (vertices) on the root face
       for(i=0; i< nvert ; i++) {
         int* fatherIdPtr;
@@ -365,7 +366,7 @@ void addFathersTag(pGModel simModel, pParMesh sim_mesh, apf::Mesh* simApfMesh, c
         }
         assert(exists);
         fatherIds[i] = fatherIdPtr[0];
-        V_coord(vrts[i],coordFather[i]);
+        V_coord(vrts[i],coordFather[i].data());
         fprintf ( fcn, "%d ", fatherIds[i]);
       }
       fprintf ( fcn, "\n");