[STL]
I have noted the following about Boost 1.32.0. 1. boost/token_iterator.hpp is very broken on line 34.
template <class TokenizerFunc, class Iterator, class Type> class token_iterator : public iterator_facade< token_iterator<TokenizerFunc, Iterator, Type> , Type // ********** SHOULD READ: const Type , typename detail::minimum_category< forward_traversal_tag , typename iterator_traversal<Iterator>::type >::type , const Type& >
GCC 3.4.2 refuses to compile this when broken.
[Dave Abrahams]
Why do you think so?
I'm sorry, I misremembered it as a hard error. Actually, it produces a nontrivial warning under -Wcast-qual: C:/MinGW/bin/../lib/gcc/i686-pc-mingw32/3.4.2/../../../../include/boost/iter ator/iterator_facade.hpp: In static member f unction `static typename boost::mpl::if_<boost::is_reference<Reference>, Pointer, boost::detail::operator_arrow_proxy<Va lueType> >::type boost::detail::operator_arrow_result<ValueType, Reference, Pointer>::make(Reference) [with ValueType = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Reference = const std::basic_string<char, std::c har_traits<char>, std::allocator<char> >&, Pointer = std::basic_string<char, std::char_traits<char>, std::allocator<char
*]': C:/MinGW/bin/../lib/gcc/i686-pc-mingw32/3.4.2/../../../../include/boost/iter ator/iterator_facade.hpp:644: instantiated from `typename boost::detail::operator_arrow_result<typename boost::detail::iterator_facade_types<Value, CategoryOrTrav ersal, Reference, Difference>::value_type, Reference, typename boost::detail::iterator_facade_types<Value, CategoryOrTra versal, Reference, Difference>::pointer>::type boost::iterator_facade<I, V, TC, R, D>::operator->() const [with Derived = boost::token_iterator<boost::char_separator<char, std::char_traits<char> , __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::basic_string<char, std::char_traits<char> , std::allocator<char> > >, Value = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, CategoryOrTr aversal = boost::forward_traversal_tag, Reference = const std::basic_string<char, std::char_traits<char>, std::allocator <char> >&, Difference = ptrdiff_t]' C:/MinGW/bin/../lib/gcc/i686-pc-mingw32/3.4.2/../../../../include/boost/date _time/time_parsing.hpp:81: instantiated fr om `time_duration boost::date_time::parse_delimited_time_duration(const std::string&) [with time_duration = boost::posix _time::time_duration]' C:/MinGW/bin/../lib/gcc/i686-pc-mingw32/3.4.2/../../../../include/boost/date _time/posix_time/time_parsers.hpp:27: inst antiated from here C:/MinGW/bin/../lib/gcc/i686-pc-mingw32/3.4.2/../../../../include/boost/iter ator/iterator_facade.hpp:325: warning: cast from `const std::basic_string<char, std::char_traits<char>, std::allocator<char> >*' to `std::basic_string<char, std::ch ar_traits<char>, std::allocator<char> >*' discards qualifiers from pointer target type
Stephan T. Lavavej