src/fflib/problem.cpp:5494: error: NULL_DEREFERENCE
  pointer `bb` last assigned on line 5493 could be null and is dereferenced at line 5494, column 55.
Showing all 10 steps of the trace


src/fflib/problem.cpp:5480:1: start of procedure isSameMesh()
5478.   
5479.   
5480. > bool isSameMesh(const list<C_F0> & largs,const void * Thu,const void * Thv,Stack stack)  // true => VF type of Matrix   
5481.   {
5482.     if( Thv != Thu ) return false;

src/fflib/problem.cpp:5482:7: Taking false branch
5480.   bool isSameMesh(const list<C_F0> & largs,const void * Thu,const void * Thv,Stack stack)  // true => VF type of Matrix   
5481.   {
5482.     if( Thv != Thu ) return false;
              ^
5483.     list<C_F0>::const_iterator ii,ib=largs.begin(),
5484.       ie=largs.end();

src/fflib/problem.cpp:5483:3: Skipping _List_const_iterator: function or method not found
5481.   {
5482.     if( Thv != Thu ) return false;
5483.     list<C_F0>::const_iterator ii,ib=largs.begin(),
          ^
5484.       ie=largs.end();
5485.       

src/fflib/problem.cpp:5487:8: Skipping operator=: function or method not found
5485.       
5486.     // bool VVF =false;   
5487.     for (ii=ib;ii != ie;ii++)
               ^
5488.       {
5489.         Expression e=ii->LeftValue();

src/fflib/problem.cpp:5487:14: Loop condition is true. Entering loop body
5485.       
5486.     // bool VVF =false;   
5487.     for (ii=ib;ii != ie;ii++)
                     ^
5488.       {
5489.         Expression e=ii->LeftValue();

src/fflib/problem.cpp:5489:7: Skipping LeftValue: function or method not found
5487.     for (ii=ib;ii != ie;ii++)
5488.       {
5489.         Expression e=ii->LeftValue();
              ^
5490.         aType r = ii->left();
5491.         if (r==atype<const  FormBilinear *>()) 

src/fflib/problem.cpp:5490:7: Skipping left: function or method not found
5488.       {
5489.         Expression e=ii->LeftValue();
5490.         aType r = ii->left();
              ^
5491.         if (r==atype<const  FormBilinear *>()) 
5492.           {

src/fflib/problem.cpp:5491:11: Taking true branch
5489.         Expression e=ii->LeftValue();
5490.         aType r = ii->left();
5491.         if (r==atype<const  FormBilinear *>()) 
                  ^
5492.           {
5493.             const  FormBilinear * bb=dynamic_cast<const  FormBilinear *>(e);

src/fflib/problem.cpp:5493:11: 
5491.         if (r==atype<const  FormBilinear *>()) 
5492.           {
5493. >           const  FormBilinear * bb=dynamic_cast<const  FormBilinear *>(e);
5494.             const void *  Thbf = GetAny<const void *>((*bb->di->Th)(stack));
5495.             if (Thbf != Thu) return false;

src/fflib/problem.cpp:5494:11: 
5492.           {
5493.             const  FormBilinear * bb=dynamic_cast<const  FormBilinear *>(e);
5494. >           const void *  Thbf = GetAny<const void *>((*bb->di->Th)(stack));
5495.             if (Thbf != Thu) return false;
5496.             }