[Bug c++/34650] 'this' pointer goes null on x86_64-linux-gnu

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #2 from rguenth at gcc dot gnu dot org  2008-01-03 16:48 -------
This is obviously an error in your program or LGraph as you can see

#2  0x0000000000402cb3 in std::find<__gnu_cxx::__normal_iterator<Edge<int,
std::string, true> const*, std::vector<Edge<int, std::string, true>,
std::allocator<Edge<int, std::string, true> > > >, int> (__first={_M_current =
0x0}, __last=
      {_M_current = 0x7fffef4c1201}, __val=@0x7fffef4c1060) at t.ii:18268
18268              std::__iterator_category(__first));
(gdb) 
#3  0x0000000000403442 in LGraph<int, std::string, true>::has (
    this=0x7fffef4c1230, n1=1, n2=3) at t.ii:14506
14506     
if(one->second.end()!=find(one->second.begin(),one->second.end(),n2)){
(gdb) 
#4  0x00000000004073f3 in LGraph<int, std::string, true>::operator() (
    this=0x7fffef4c1230, node1=1, node2=3) at t.ii:14543
14543     if(has(node1,node2)){
(gdb) 
#5  0x000000000040186c in main (argv=1, args=0x7fffef4c1448) at t.ii:32882
32882    std::cout << "There is an edge as(EXISTS):" << (( "EXISTS" == cdg(1,3)
) ? "true" : "false") <<std::endl;

std::find is invoked with an invalid __first argument from LGraph::has.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34650