Spirit X3 employee.cpp compile error

Visual Studio 2015 Professional


Boost 1.61, Windows binary install


Spirit X3 example 'employee.cpp' (http://ciere.com/example/x3/employee.cpp)





Unless I add a third template argument of 'true' to the declaration of the employee rule, compilation fails with the below message. It's tripping on an ambiguous overload.





Vince















1>------ Build started: Project: employee, Configuration: Release Win32 ------

1> employee.cpp

1>C:\local\boost_1_61_0\boost/spirit/home/x3/nonterminal/rule.hpp(116): error C2668: 'client::parser::parse_rule': ambiguous call to overloaded function

1> ..\..\x3\example\employee.cpp(86): note: could be 'bool client::parser::parse_rule<Iterator,Context,Attribute_>(const boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>,Iterator &,const Iterator &,const Context &,Attribute &)' [found using argument-dependent lookup]

1> with

1> [

1> Iterator=std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,

1> Context=boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const boost::spirit::x3::ascii::space_type,boost::spirit::x3::unused_type>,

1> Attribute_=client::ast::employee,

1> Attribute=client::ast::employee

1> ]

1> C:\local\boost_1_61_0\boost/spirit/home/x3/nonterminal/rule.hpp(30): note: or 'boost::spirit::x3::detail::default_parse_rule_result boost::spirit::x3::parse_rule<client::parser::employee,client::ast::employee,Iterator,Context,Attribute_>(boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>,Iterator &,const Iterator &,const Context &,ActualAttribute &)'

1> with

1> [

1> Iterator=std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,

1> Context=boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const boost::spirit::x3::ascii::space_type,boost::spirit::x3::unused_type>,

1> Attribute_=client::ast::employee,

1> ActualAttribute=client::ast::employee

1> ]

1> C:\local\boost_1_61_0\boost/spirit/home/x3/nonterminal/rule.hpp(116): note: while trying to match the argument list '(const boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>, std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>, const std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>, const boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const Derived,boost::spirit::x3::unused_type>, client::ast::employee)'

1> with

1> [

1> Derived=boost::spirit::x3::ascii::space_type

1> ]

1> C:\local\boost_1_61_0\boost/spirit/home/x3/core/parse.hpp(117): note: see reference to function template instantiation 'bool boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>::parse<Iterator,boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const Derived,boost::spirit::x3::unused_type>,Attribute>(Iterator &,const Iterator &,const Context &,boost::spirit::x3::unused_type,Attribute_ &) const' being compiled

1> with

1> [

1> Iterator=std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,

1> Derived=boost::spirit::x3::ascii::space_type,

1> Attribute=client::ast::employee,

1> Context=boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const boost::spirit::x3::ascii::space_type,boost::spirit::x3::unused_type>,

1> Attribute_=client::ast::employee

1> ]

1> C:\local\boost_1_61_0\boost/spirit/home/x3/core/parse.hpp(117): note: see reference to function template instantiation 'bool boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>::parse<Iterator,boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const Derived,boost::spirit::x3::unused_type>,Attribute>(Iterator &,const Iterator &,const Context &,boost::spirit::x3::unused_type,Attribute_ &) const' being compiled

1> with

1> [

1> Iterator=std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,

1> Derived=boost::spirit::x3::ascii::space_type,

1> Attribute=client::ast::employee,

1> Context=boost::spirit::x3::context<boost::spirit::x3::skipper_tag,const boost::spirit::x3::ascii::space_type,boost::spirit::x3::unused_type>,

1> Attribute_=client::ast::employee

1> ]

1> C:\local\boost_1_61_0\boost/spirit/home/x3/core/parse.hpp(134): note: see reference to function template instantiation 'bool boost::spirit::x3::phrase_parse_main<Iterator,Parser,Skipper,Attribute>(Iterator &,Iterator,const Parser &,const Skipper &,Attribute &,boost::spirit::x3::skip_flag)' being compiled

1> with

1> [

1> Iterator=std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,

1> Parser=boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>,

1> Skipper=boost::spirit::x3::ascii::space_type,

1> Attribute=client::ast::employee

1> ]

1> ..\..\x3\example\employee.cpp(118): note: see reference to function template instantiation 'bool boost::spirit::x3::phrase_parse<std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>,boost::spirit::x3::ascii::space_type,client::ast::employee>(Iterator &,Iterator,const Parser &,const Skipper &,Attribute &,boost::spirit::x3::skip_flag)' being compiled

1> with

1> [

1> Iterator=std::_String_const_iterator<std::_String_val<std::_Simple_types<char>>>,

1> Parser=boost::spirit::x3::rule<client::parser::employee,client::ast::employee,false>,

1> Skipper=boost::spirit::x3::ascii::space_type,

1> Attribute=client::ast::employee

1> ]

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

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