src/medit/cube.c:74: error: NULL_DEREFERENCE
  pointer `out` last assigned on line 72 could be null and is dereferenced by call to `fprintf()` at line 74, column 5.
Showing all 6 steps of the trace


src/medit/cube.c:64:1: start of procedure dumpCube()
62.   
63.   
64. > void dumpCube(pScene sc,pMesh mesh,pCube cube) {
65.     float  *tr,u[4];
66.     double  v[4];

src/medit/cube.c:70:3: 
68.     FILE   *out;
69.   
70. >   tr = cube->cubetr->matrix;
71.   
72.     out = fopen("tr.data","w");

src/medit/cube.c:72:3: 
70.     tr = cube->cubetr->matrix;
71.   
72. >   out = fopen("tr.data","w");
73.     for (i=0; i<4; i++)
74.       fprintf(out,"%f %f %f %f\n",tr[i],tr[4+i],tr[8+i],tr[12+i]);

src/medit/cube.c:73:8: 
71.   
72.     out = fopen("tr.data","w");
73. >   for (i=0; i<4; i++)
74.       fprintf(out,"%f %f %f %f\n",tr[i],tr[4+i],tr[8+i],tr[12+i]);
75.     

src/medit/cube.c:73:13: Loop condition is true. Entering loop body
71.   
72.     out = fopen("tr.data","w");
73.     for (i=0; i<4; i++)
                  ^
74.       fprintf(out,"%f %f %f %f\n",tr[i],tr[4+i],tr[8+i],tr[12+i]);
75.     

src/medit/cube.c:74:5: 
72.     out = fopen("tr.data","w");
73.     for (i=0; i<4; i++)
74. >     fprintf(out,"%f %f %f %f\n",tr[i],tr[4+i],tr[8+i],tr[12+i]);
75.     
76.     u[0] = cube->cmi[0] - mesh->xtra;