id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1610	[MSVC/STLport] [tree/common.hpp] Standard library requirements violation(incomplete type as vector parameter)	archimed7592+svc@…	Joel de Guzman	"'''boost/spirit/tree/common.hpp'''
{{{
template <typename T>
struct tree_node
{
    typedef T parse_node_t;
    
#if !defined(BOOST_SPIRIT_USE_BOOST_ALLOCATOR_FOR_TREES)
    typedef std::allocator<tree_node<T> > allocator_type;
#elif !defined(BOOST_SPIRIT_USE_LIST_FOR_TREES)
    typedef boost::pool_allocator<tree_node<T> > allocator_type;
#else
    typedef boost::fast_pool_allocator<tree_node<T> > allocator_type;
#endif

#if !defined(BOOST_SPIRIT_USE_LIST_FOR_TREES)
    typedef std::vector<tree_node<T>, allocator_type> children_t;
#else
    typedef std::list<tree_node<T>, allocator_type> children_t;
#endif  // BOOST_SPIRIT_USE_LIST_FOR_TREES

    typedef typename children_t::iterator tree_iterator;
    typedef typename children_t::const_iterator const_tree_iterator;
}}}

The problem: ''children_t::blablabla'' triggers implicit instantiation of ''children_t'', which have ''tree_node'' as its template parameter i.e. incomplete type. This code violates '''17.4.3.6/2'''

{{{
In particular, the effects are undefined in the following cases:
...
— if an incomplete type (3.9) is used as a template argument when instantiating a template component.

}}}

It works with almost all STL implementations, but not with STLport-5.1.5/MSVC-8.0-SP1.[[BR]]



----
'''Build log:'''

{{{
instantiate_cpp_grammar.cpp
STLport: Auto linking to stlportstld.5.1.lib
E:\.my\projects\install\.msvc\STLport-5.1.5\stlport\stl/type_traits.h(249) : error C2139: 'boost::spirit::tree_node<T>' : an undefined class is not allowed as an argument to compiler intrinsic type trait '__has_trivial_constructor'
        with
        [
            T=boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>
        ]
        E:\.my\projects\install\.msvc\STLport-5.1.5\stlport\stl/_vector.h(137) : see reference to class template instantiation 'stlpd_std::__type_traits<_Tp>' being compiled
        with
        [
            _Tp=boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>
        ]
        E:\.my\projects\install\.msvc\STLport-5.1.5\stlport\stl/debug/_iterator.h(381) : see reference to class template instantiation 'stlpd_std::priv::_NonDbg_vector<_Tp,_Alloc>' being compiled
        with
        [
            _Tp=boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>,
            _Alloc=stlpd_std::allocator<boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>>
        ]
        E:\.my\projects\install\.msvc\STLport-5.1.5\stlport\stl/debug/_vector.h(106) : see reference to class template instantiation 'stlpd_std::priv::__construct_checker<_Container>' being compiled
        with
        [
            _Container=stlpd_std::priv::_NonDbg_vector<boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>,stlpd_std::allocator<boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>>>
        ]
        .\boost/spirit/tree/common.hpp(69) : see reference to class template instantiation 'stlpd_std::vector<_Tp,_Alloc>' being compiled
        with
        [
            _Tp=boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>,
            _Alloc=stlpd_std::allocator<boost::spirit::tree_node<boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>>>
        ]
        .\boost/spirit/tree/common.hpp(542) : see reference to class template instantiation 'boost::spirit::tree_node<T>' being compiled
        with
        [
            T=boost::spirit::node_val_data<boost::wave::cpplexer::lex_iterator<token_type>,boost::spirit::nil_t>
        ]
        .\boost/spirit/tree/common.hpp(1454) : see reference to class template instantiation 'boost::spirit::tree_match<IteratorT,NodeFactoryT,T>' being compiled
        with
        [
            IteratorT=boost::wave::cpplexer::lex_iterator<token_type>,
            NodeFactoryT=boost::wave::grammars::cpp_grammar_gen<lexer_type,token_sequence_type>::node_factory_type,
            T=boost::spirit::nil_t
        ]
        .\boost/wave/grammars/cpp_grammar.hpp(723) : see reference to class template instantiation 'boost::spirit::tree_parse_info<IteratorT,NodeFactoryT>' being compiled
        with
        [
            IteratorT=boost::wave::cpplexer::lex_iterator<token_type>,
            NodeFactoryT=boost::wave::grammars::cpp_grammar_gen<lexer_type,token_sequence_type>::node_factory_type
        ]
        .\boost/wave/grammars/cpp_grammar.hpp(723) : while compiling class template member function 'boost::spirit::tree_parse_info<IteratorT,NodeFactoryT> boost::wave::grammars::cpp_grammar_gen<LexIteratorT,TokenContainerT>::parse_cpp_grammar(const boost::wave::cpplexer::lex_iterator<TokenT> &,const boost::wave::cpplexer::lex_iterator<TokenT> &,const boost::wave::util::file_position<StringT> &,bool &,boost::wave::cpplexer::lex_token<> &,stlpd_std::list<_Tp,_Alloc> &)'
        with
        [
            IteratorT=boost::wave::cpplexer::lex_iterator<token_type>,
            NodeFactoryT=boost::wave::grammars::cpp_grammar_gen<lexer_type,token_sequence_type>::node_factory_type,
            LexIteratorT=lexer_type,
            TokenContainerT=token_sequence_type,
            TokenT=token_type,
            StringT=boost::wave::util::flex_string<char,stlpd_std::char_traits<char>,stlpd_std::allocator<char>,boost::wave::util::CowString<boost::wave::util::AllocatorStringStorage<char>>>,
            _Tp=token_type,
            _Alloc=boost::fast_pool_allocator<token_type>
        ]
        libs\wave\src\instantiate_cpp_grammar.cpp(47) : see reference to class template instantiation 'boost::wave::grammars::cpp_grammar_gen<LexIteratorT,TokenContainerT>' being compiled
        with
        [
            LexIteratorT=lexer_type,
            TokenContainerT=token_sequence_type
        ]

}}}
"	Bugs	closed	Boost 1.36.0	spirit	Boost 1.34.1	Problem	wontfix	stlport