Re: [Boost-users] [spirit] Compile error when using qi::locals<>

Subject: Re: [Boost-users] [spirit] Compile error when using qi::locals<>
From: Simon (turner25_at_[hidden])
Date: 2013-06-06 09:53:22

Hi Tongari, Michael,

  I wrote the exact same thing in the rule's declaration as in the grammar
template param.

  Basically, I need to match some patterns, create objects using those
patterns' semantic values.  The problem I have is when parsing a list of
items separated by the same char.  I need a way to accumulate them into a
vector, and then use that vector as the constructor param to a "parent"
object of those in the list.

  I will build a very small example that exhibits the problem I'm having
and post it here.  I should have time over the course of the day.

Thanks,
  Simon

On Wed, Jun 5, 2013 at 10:46 PM, TONGARI <tongari95_at_[hidden]> wrote:

> 2013/6/6 Simon <turner25_at_[hidden]>
>
>> Hi there,
>>   I'm pretty new to spirit and I need a semantic action to construct an
>> object (that's fine) using a vector<double>, the vector is the problem.
>>  I'd really appreciate help with this error, or perhaps I'm not using the
>> right technique, in which case, I'd need suggestions on how to proceed.
>>
>>   Even if I don't use it anywhere, just adding the following to my
>> grammar base class template parameter and adding the same to the rule
>> declaration I need it for, it gives the monster error below.
>>
>>   boost::spirit::qi::locals<std::vector<hs::Language::AX*> >
>>
>>   I've also tried to make the vector a pointer, and allocate it on the
>> first semantic action of a sequence.
>>
>>   I've searched for an answer but found only one remote reference to
>> boost needing to be recompiled to use c++11 features.  So I did, but it
>> didn't change anything (I use boost-1.49.0-r2).
>>
>>   Also, I'm not sure if that is right, but my gcc command has this
>> parameter:   -std=c++0x
>>
>>
>> I've put the full compile output at this address:
>> http://next.n32.ca/locals.error.txt
>> I will forget it there, so it should still be available in a few
>> weeks/months... ;)
>>
>> And here are a few extracts of just the error lines:
>>
>> /usr/include/boost/spirit/home/qi/nonterminal/grammar.hpp:75:13: error:
>> no matching function for call to 'assertion_failed(mpl_::failed************
>> (boost::spirit::qi::grammar<Iterator, T1, T2, T3, T4>::grammar(const
>> boost::spirit::qi::rule<Iterator_, T1_, T2_, T3_, T4_>&, const string&)
>> [with Iterator_ = __gnu_cxx::__normal_iterator<const char*,
>> std::basic_string<char> >, T1_ = hs::Language::AX*(), T2_ =
>> boost::spirit::unused_type, T3_ = boost::spirit::unused_type, T4_ =
>> boost::spirit::unused_type, Iterator = __gnu_cxx::__normal_iterator<const
>> char*, std::basic_string<char> >, T1 = hs::Language::AX*(), T2 =
>> boost::spirit::locals<std::vector<hs::Language::AX*>*>, T3 =
>> boost::spirit::unused_type, T4 = boost::spirit::unused_type, std::string =
>> std::basic_string<char>]::incompatible_start_rule::************)(boost::spirit::qi::rule<__gnu_cxx::__normal_iterator<const
>> char*, std::basic_string<char> >, hs::Language::AX*(),
>> boost::spirit::unused_type, boost::spirit::unused_type,
>> boost::spirit::unused_type>))'
>>
>>
>> /usr/include/boost/proto/extends.hpp:537:29: error: use of deleted
>> function 'boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,
>> boost::proto::argsns_::term<boost::spirit::qi::reference<const
>> boost::spirit::qi::rule<__gnu_cxx::__normal_iterator<const char*,
>> std::basic_string<char> >, hs::Language::AX*(),
>> boost::spirit::locals<std::vector<hs::Language::AX*>*>,
>> boost::spirit::unused_type, boost::spirit::unused_type> > >, 0l>::expr()'
>>
>> /usr/include/boost/proto/detail/preprocessed/expr_variadic.hpp:37:12:
>> error: 'boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,
>> boost::proto::argsns_::term<boost::spirit::qi::reference<const
>> boost::spirit::qi::rule<__gnu_cxx::__normal_iterator<const char*,
>> std::basic_string<char> >, hs::Language::AX*(),
>> boost::spirit::locals<std::vector<hs::Language::AX*>*>,
>> boost::spirit::unused_type, boost::spirit::unused_type> > >, 0l>::expr()'
>> is implicitly deleted because the default definition would be ill-formed:
>> /usr/include/boost/proto/detail/preprocessed/expr_variadic.hpp:37:12:
>> error: no matching function for call to 'boost::spirit::qi::reference<const
>> boost::spirit::qi::rule<__gnu_cxx::__normal_iterator<const char*,
>> std::basic_string<char> >, hs::Language::AX*(),
>> boost::spirit::locals<std::vector<hs::Language::AX*>*>,
>> boost::spirit::unused_type, boost::spirit::unused_type> >::reference()'
>>
>
> According to the error message, I guess you use qi::locals in
> yourstart-rule but not the grammar itself, the template params for
> start-rule and grammar should always be the same.
>
>
>
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