David Greene wrote:
David Greene wrote:
I'm starting to use boost::program_options and am not having much luck:
Some more information:
I'm using Boost 1.33.1 with g++ 4.0.2 on x86 Linux. When I switch to g++ 3.3.3 running the test with no options works. Running with --help works. Running with any --debug options causes a segfault.
After some investigation I discovered that the first "free(): Invalid pointer" message appears during execution cmdline::run. At line 244 of cmdline.cpp, there's a break statement that triggers the destruction of local vector<option> next. Valgrind reports the bad free and I've attached the report below. Hopefully that will be helpful. I'm willing to patch my sources in the short term but I need some help determining the problem. I'm not familiar with the internals of program_options. Thanks. -Dave ----------------- Valgrind report ==31224== Invalid free() / delete / delete[] ==31224== at 0x1B8FF622: operator delete(void*) (vg_replace_malloc.c:246) ==31224== by 0x80509E8: __gnu_cxx::new_allocator<boost::program_options::basic_option<char>
::deallocate(boost::program_options::basic_option<char>*, unsigned) (new_allocator.h:94) ==31224== by 0x8050A12: std::_Vector_base<boost::program_options::basic_option<char>, std::allocator<boost::program_options::basic_option<char> > ::_M_deallocate(boost::program_options::basic_option<char>*, unsigned) (stl_vector.h:123) ==31224== by 0x8050A51: std::_Vector_base<boost::program_options::basic_option<char>, std::allocator<boost::program_options::basic_option<char> > ::~_Vector_base() (stl_vector.h:109) ==31224== by 0x8052D4B: std::vector<boost::program_options::basic_option<char>, std::allocator<boost::program_options::basic_option<char> > >::~vector() (stl_vector.h:273) ==31224== by 0x1B93834A: boost::program_options::detail::cmdline::run() (cmdline.cpp:244) ==31224== by 0x80541C3: boost::program_options::basic_command_line_parser<char>::run() (parsers.hpp:102) ==31224== by 0x80542BE: boost::program_options::basic_parsed_options<char> boost::program_options::parse_command_line<char>(int, char**, boost::program_options::options_description const&, int, boost::function1<std::pair<std::string, std::string>, std::string const&, std::allocator<boost::function_base> >) (parsers.hpp:119) ==31224== by 0x804EEBC: test::process_options(int, char**) (options.cc:69) ==31224== by 0x804F177: main (options.cc:87) ==31224== Address 0x1BCA7200 is 1096 bytes inside a block of size 1152 alloc'd ==31224== at 0x1B8FE899: malloc (vg_replace_malloc.c:149) ==31224== by 0x1BC7F3BD: operator new(unsigned) (new_op.cc:48) ==31224== by 0x1BC6BC10: std::__default_alloc_template<true, 0>::_S_chunk_alloc(unsigned, int&) (stl_alloc.h:109) ==31224== by 0x1BC6BB1C: std::__default_alloc_template<true, 0>::_S_refill(unsigned) (stl_alloc.h:561) ==31224== by 0x1BC6B60B: std::__default_alloc_template<true, 0>::allocate(unsigned) (stl_alloc.h:365) ==31224== by 0x1BC716E7: std::string::_Rep::_S_create(unsigned, std::allocator<char> const&) (stl_alloc.h:685) ==31224== by 0x1BC724F4: char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) (basic_string.tcc:150) ==31224== by 0x1BC6E7B3: std::string::string(char const*, std::allocator<char> const&) (basic_string.h:732) ==31224== by 0x1B942DB5: boost::program_options::option_description::set_name(char const*) (options_description.cpp:115) ==31224== by 0x1B942873: boost::program_options::option_description::option_description(char const*, boost::program_options::value_semantic const*, char const*) (options_description.cpp:49) ==31224== by 0x1B943295: boost::program_options::options_description_easy_init::operator()(char const*, char const*) (options_description.cpp:172) ==31224== by 0x804EBB1: test::process_options(int, char**) (options.cc:46) ==31224==