#0  0x081931c0 in StateDatabase::ExpressionToken::getNumber (this=0x1e0)
    at StateDatabase.cxx:607
#1  0x081946e3 in StateDatabase::evaluate (this=0x82ccec8, e=
          {<std::_Vector_base<StateDatabase::ExpressionToken, std::allocator<StateDatabase::ExpressionToken> >> = {<std::_Vector_alloc_base<StateDatabase::ExpressionToken, std::allocator<StateDatabase::ExpressionToken>, true>> = {_M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}, <No data fields>}, <No data fields>}) at StateDatabase.cxx:934
#2  0x081924d9 in StateDatabase::eval (this=0x82ccec8, name=@0xbffff020)
    at StateDatabase.cxx:398
#3  0x081925f6 in StateDatabase::evalInt (this=0x82ccec8, name=@0xbffff020)
    at StateDatabase.cxx:407
#4  0x0811ed56 in TrackMarks::init () at TrackMarks.cxx:226
#5  0x080f9125 in SceneRenderer (this=0x83a9860) at SceneRenderer.cxx:132
#6  0x0807b2df in Singleton<SceneRenderer>::instance () at Singleton.h:85
#7  0x08143afd in main (argc=6, argv=0xbffff6f4) at bzflag.cxx:1454