[Bug libstdc++/24064] New: tr1::unordered_map seems to seg-fault when caching hash values

[atavory at gmail dot com]

The following snippet of code seg-faults:

typedef 
	std::tr1::unordered_map<
		int,
		char,
		__gnu_cxx::hash<
			int>,
		std::equal_to<
			int>,
		std::allocator<
			std::pair<
				const int,
				char> >,
		true> // (*)
	map_t;
	
map_t m;

int i;

for(i = 0; i < 1000; ++i)
	m[i] = 'a';
		
for(i = 0; i < 1000; ++i)
	++m.find(i)->second;	

  If, however, the value in the line marked with (*) is changed to false (i.e.,
the container does not cache hash values), it runs fine.

g++ --version outputs: g++ (GCC) 4.0.0 20050519 (Red Hat 4.0.0-8)

  Thanks!

-- 
           Summary: tr1::unordered_map seems to seg-fault when caching hash
                    values
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: atavory at gmail dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24064