Re: [Boost-users] Using boost::lambda on AIX with xlC version 6

From: Jaakko Jarvi (jarvi_at_[hidden])
Date: 2006-09-26 16:44:41

It seems that the compiler cannot select between the "select" functions:

template<class Arg, CALL_TEMPLATE_ARGS>
inline typename Arg::template sig<tuple<CALL_REFERENCE_TYPES> >::type
select ( const lambda_functor<Arg>& op, CALL_FORMAL_ARGS ) {
   return op.template call<
     typename Arg::template sig<tuple<CALL_REFERENCE_TYPES> >::type
   >(CALL_ACTUAL_ARGS);
}
template<class Arg, CALL_TEMPLATE_ARGS>
inline typename Arg::template sig<tuple<CALL_REFERENCE_TYPES> >::type
select ( lambda_functor<Arg>& op, CALL_FORMAL_ARGS) {
   return op.template call<
     typename Arg::template sig<tuple<CALL_REFERENCE_TYPES> >::type
   >(CALL_ACTUAL_ARGS);
}

As far as I can tell,
the first one should be a better match for a "const  
lambda_functor<...>" type, as in your example,
but for some reason the compiler seems to think both matches are equal.

Based on what I see here, I would blaim the compiler.

   Jaakko

On Sep 25, 2006, at 5:29 PM, Jerry Jeremiah wrote:

>>
>
> Hello,
>
> I would appreciate any help with this.  I am trying to compile this  
> test
> program on AIX with xlC (VisualAge C++ Professional / C for AIX  
> Compiler,
> Version 6):
>
> #include <iostream>  // cout
> #include <vector>    // vector
> #include <algorithm> // for_each
> #include "boost/lambda/lambda.hpp"
> using namespace boost::lambda;
> main() {
>   std::vector<int> a;
>   a.push_back(1);
>   std::for_each(a.begin(), a.end(), std::cout << _1 << ' ');
> }
>
>
> And I get:
>
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-0219
> (S) The call to "detail::select" has no best match.
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1228
> (I) Argument number 1 is an lvalue of type "const
> boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost 
> ::lambda:
> :bitwise_action<boost::lambda::leftshift_action>,boost::tuples::tuple< 
> std::basi
> c_ostream<char,std::char_traits<char> >
> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::nul 
>> l_type,bo
> ost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_ty 
> pe,boost:
> :tuples::null_type,boos...".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1228
> (I) Argument number 2 is an lvalue of type "int".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1228
> (I) Argument number 3 is an lvalue of type "const  
> boost::tuples::null_type".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1228
> (I) Argument number 4 is an lvalue of type "const  
> boost::tuples::null_type".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1228
> (I) Argument number 5 is an lvalue of type "const  
> boost::tuples::null_type".
> "./boost/lambda/detail/select_functions.hpp", line 27.1: 1540-1202  
> (I) No
> candidate is better
> than  
> "boost::lambda::detail::select<boost::lambda::lambda_functor_base<boos 
> t::l
> ambda::bitwise_action<boost::lambda::leftshift_action>,boost::tuples:: 
> tuple<std
> ::basic_ostream<char,std::char_traits<char> >
> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::nul 
>> l_type,bo
> ost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_ty 
> pe,boost:
> :tuples::null_type,boost::tuples::null_type>...".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 1 to "const
> boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost 
> ::lambda:
> :bitwise_action<boost::lambda::leftshift_action>,boost::tuples::tuple< 
> std::basi
> c_ostream<char,std::char_traits<char> >
> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::nul 
>> l_type,bo
> ost::tuples::null_type,boost::tuples::null_type,boost::tuples::nu..."
> uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 2 to "int &" uses "the  
> identity
> conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 3 to "const  
> boost::tuples::null_type
> &" uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 4 to "const  
> boost::tuples::null_type
> &" uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 5 to "const  
> boost::tuples::null_type
> &" uses "the identity conversion".
> "./boost/lambda/detail/select_functions.hpp", line 22.13: 1540-1202  
> (I) No
> candidate is better than "boost::lambda::detail::select<const
> boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost 
> ::lambda:
> :bitwise_action<boost::lambda::leftshift_action>,boost::tuples::tuple< 
> std::basi
> c_ostream<char,std::char_traits<char> >
> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::nul 
>> l_type,bo
> ost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_ty 
> pe,boost:
> :tuples:...".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 1 to "const
> boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost 
> ::lambda:
> :bitwise_action<boost::lambda::leftshift_action>,boost::tuples::tuple< 
> std::basi
> c_ostream<char,std::char_traits<char> >
> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::nul 
>> l_type,bo
> ost::tuples::null_type,boost::tuples::null_type,boost::tuples::nu..."
> uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 2 to "int &" uses "the  
> identity
> conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 3 to "const  
> boost::tuples::null_type
> &" uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 4 to "const  
> boost::tuples::null_type
> &" uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-1231
> (I) The conversion from argument number 5 to "const  
> boost::tuples::null_type
> &" uses "the identity conversion".
> "./boost/lambda/detail/operator_lambda_func_base.hpp", line 212.1:  
> 1540-0700
> (I) The previous message was produced while
> processing "boost::lambda::lambda_functor_base<class
> boost::lambda::bitwise_action<boost::lambda::leftshift_action>,class
> boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lamb 
> da_functo
> r_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>, 
> boost::tu
> ples::tuple<std::basic_ostream<char,std::char_traits<char> >
> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_type,boost::tuples::null_t...".
> "./boost/lambda/detail/lambda_functors.hpp", line 145.3: 1540-0700  
> (I) The
> previous message was produced while
> processing "boost::lambda::lambda_functor<class
> boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost 
> ::lambda:
> :leftshift_action>,boost::tuples::tuple<boost::lambda::lambda_functor< 
> boost::la
> mbda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda: 
> :leftshif
> t_action>,boost::tuples::tuple<std::basic_ostream<char,std::char_trait 
> s<char>
>> &,boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>> ,boost::tuples::null_ty...".
> "/usr/vacpp/include/algorithm", line 77.13: 1540-0700 (I) The  
> previous message
> was produced while processing  
> "std::for_each<std::_Ptrit<int,long,int *,int
> &,int *,int
> &>,boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<bo 
> ost::lamb
> da::bitwise_action<boost::lambda::leftshift_action>,boost::tuples::tup 
> le<boost:
> :lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lamb 
> da::bitwi
> se_action<boost::lambda::leftshift_action>,boost::tuples::tuple<std::b 
> asic_ostr
> eam<char,std::char_traits<char> >  
> &,boost::lambda::lambda_functor<...".
> "test.cpp", line 13.3: 1540-0700 (I) The previous message was  
> produced while
> processing "main()".
>
>
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