src/medit/inout.c:26: error: NULL_DEREFERENCE
  pointer `ptr` last assigned on line 25 could be null and is dereferenced at line 26, column 7.
Showing all 9 steps of the trace


src/medit/inout.c:6:1: start of procedure loadMesh()
4.   
5.   
6. > int loadMesh(pMesh mesh) {
7.     pPoint      ppt;
8.     pEdge       pr;

src/medit/inout.c:18:3: 
16.     char       *ptr,data[256];
17.   
18. >   printf("use loadMesh\n");
19.     /* default */
20.     strcpy(data,mesh->name);

src/medit/inout.c:20:3: 
18.     printf("use loadMesh\n");
19.     /* default */
20. >   strcpy(data,mesh->name);
21.     ptr = strstr(data,".mesh");
22.     if ( !ptr ) {

src/medit/inout.c:21:3: 
19.     /* default */
20.     strcpy(data,mesh->name);
21. >   ptr = strstr(data,".mesh");
22.     if ( !ptr ) {
23.       strcat(data,".meshb");

src/medit/inout.c:22:9: Taking true branch
20.     strcpy(data,mesh->name);
21.     ptr = strstr(data,".mesh");
22.     if ( !ptr ) {
              ^
23.       strcat(data,".meshb");
24.       if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {

src/medit/inout.c:23:5: 
21.     ptr = strstr(data,".mesh");
22.     if ( !ptr ) {
23. >     strcat(data,".meshb");
24.       if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
25.         ptr = strstr(data,".mesh");

src/medit/inout.c:24:12: Taking true branch
22.     if ( !ptr ) {
23.       strcat(data,".meshb");
24.       if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
                 ^
25.         ptr = strstr(data,".mesh");
26.         *ptr = '\0';

src/medit/inout.c:25:7: 
23.       strcat(data,".meshb");
24.       if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
25. >       ptr = strstr(data,".mesh");
26.         *ptr = '\0';
27.         strcat(data,".mesh");

src/medit/inout.c:26:7: 
24.       if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
25.         ptr = strstr(data,".mesh");
26. >       *ptr = '\0';
27.         strcat(data,".mesh");
28.         if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {