[Boost-users] [program_options] crash due to bug in ~variables_map ??

From: ope (ope-devel_at_[hidden])
Date: 2008-01-25 14:19:38

Hi,

the following drives my mad:

---8<---
     class CommandLineOptions {
     public:
         CommandLineOptions( int argc, char** argv );
         bool option( const std::string& arg ) const;
...
     private:
         po::options_description generic_options;
         po::options_description hidden_options;
         po::options_description usage_options;
         po::options_description cmdline_options;
         po::positional_options_description pos_options;
         po::variables_map vm;
     };
--->8---
---8<---
bool CommandLineOptions::option( const std::string& arg ) const
{
     return vm.count( arg );
}
--->8---
int main( int argc, char **argv )
{
     try {
         CommandLineOptions cmdline( argc, argv );

running using gdb (on return of main()):

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb6f826c0 (LWP 16599)]
0x08051cb2 in std::_Rb_tree<std::string, std::string, 
std::_Identity<std::string>, std::less<std::string>, 
std::allocator<std::string> >::_S_right (__x=0x11) at 
/usr/include/c++/4.2/bits/stl_tree.h:510
510	      { return static_cast<_Link_type>(__x->_M_right); }
(gdb) bt
#0  0x08051cb2 in std::_Rb_tree<std::string, std::string, 
std::_Identity<std::string>, std::less<std::string>, 
std::allocator<std::string> >::_S_right (__x=0x11) at 
/usr/include/c++/4.2/bits/stl_tree.h:510
#1  0x0805291d in std::_Rb_tree<std::string, std::string, 
std::_Identity<std::string>, std::less<std::string>, 
std::allocator<std::string> >::_M_erase (this=0xbfb95e48, __x=0x11) at 
/usr/include/c++/4.2/bits/stl_tree.h:1323
#2  0x0805292c in std::_Rb_tree<std::string, std::string, 
std::_Identity<std::string>, std::less<std::string>, 
std::allocator<std::string> >::_M_erase (this=0xbfb95e48, __x=0x80c61b0)
     at /usr/include/c++/4.2/bits/stl_tree.h:1323
#3  0x0805297b in ~_Rb_tree (this=0xbfb95e48) at 
/usr/include/c++/4.2/bits/stl_tree.h:592
#4  0x080529cb in ~set (this=0xbfb95e48) at 
/usr/include/c++/4.2/bits/stl_set.h:94
#5  0x08052b83 in ~variables_map (this=0xbfb95e28)
     at /usr/local/include/boost/program_options/variables_map.hpp:139
#6  0x0805316d in ~CommandLineOptions (this=0xbfb95cac) at 
src/eda/workbench/CommandLineOptions.hpp:23
#7  0x080515c3 in main (argc=1, argv=0xbfb961c4) at 
src/eda/workbench/main.cpp:75

writing main() as:
---8<---
int main( int argc, char **argv )
{
     try {
         CommandLineOptions cmdline( argc, argv );

         if (cmdline.option( "version" )) {
             std::cout << ...
         }

running using gdb:
Starting program: /home/opetzold/Projects/cpp/eda2/eda -v
...
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb6f716c0 (LWP 16883)]
0x08051d7e in std::_Rb_tree<std::string, std::pair<std::string const, 
boost::program_options::variable_value>, 
std::_Select1st<std::pair<std::string const, 
boost::program_options::variable_value> >, std::less<std::string>, 
std::allocator<std::pair<std::string const, 
boost::program_options::variable_value> > >::_S_right (__x=0xb0012)
     at /usr/include/c++/4.2/bits/stl_tree.h:510
510	      { return static_cast<_Link_type>(__x->_M_right); }
(gdb) bt
#0  0x08051d7e in std::_Rb_tree<std::string, std::pair<std::string 
const, boost::program_options::variable_value>, 
std::_Select1st<std::pair<std::string const, 
boost::program_options::variable_value> >, std::less<std::string>, 
std::allocator<std::pair<std::string const, 
boost::program_options::variable_value> > >::_S_right (__x=0xb0012)
     at /usr/include/c++/4.2/bits/stl_tree.h:510
#1  0x08052b9f in std::_Rb_tree<std::string, std::pair<std::string 
const, boost::program_options::variable_value>, 
std::_Select1st<std::pair<std::string const, 
boost::program_options::variable_value> >, std::less<std::string>, 
std::allocator<std::pair<std::string const, 
boost::program_options::variable_value> > >::_M_erase (
     this=0xbfe2c0a8, __x=0xb0012) at 
/usr/include/c++/4.2/bits/stl_tree.h:1323
#2  0x08052bae in std::_Rb_tree<std::string, std::pair<std::string 
const, boost::program_options::variable_value>, 
std::_Select1st<std::pair<std::string const, 
boost::program_options::variable_value> >, std::less<std::string>, 
std::allocator<std::pair<std::string const, 
boost::program_options::variable_value> > >::_M_erase (
     this=0xbfe2c0a8, __x=0xb6fceb2c) at 
/usr/include/c++/4.2/bits/stl_tree.h:1323
#3  0x08052bfd in ~_Rb_tree (this=0xbfe2c0a8) at 
/usr/include/c++/4.2/bits/stl_tree.h:592
#4  0x08052c4d in ~map (this=0xbfe2c0a8) at 
/usr/include/c++/4.2/bits/stl_map.h:94
#5  0x08052cb6 in ~variables_map (this=0xbfe2c0a0)
     at /usr/local/include/boost/program_options/variables_map.hpp:139
#6  0x0805327f in ~CommandLineOptions (this=0xbfe2bf24) at 
src/eda/workbench/CommandLineOptions.hpp:23
#7  0x0805170a in main (argc=2, argv=0xbfe2c444) at 
src/eda/workbench/main.cpp:75

Each time it crash in ~variables_map. Is it a bug??

I'm using gcc-Version 4.2.3 20080114 (prerelease) (Debian 4.2.2-7)

Thanks,
Olaf