[Boost-users] [lambda] Using Boost.Lambda with overloaded operators on user defined types

Subject: [Boost-users] [lambda] Using Boost.Lambda with overloaded operators on user defined types
From: DeVill (devillmeister_at_[hidden])
Date: 2011-11-19 04:44:20

Hi!

I can work around this one easily, but I'm really interested what's wrong
with it, and spent 2 days searching in vain.

I have in SnakeCube.h the following:

typedef boost::multi_array<int, 3> SnakeCubeSolution_t;
typedef std::tr1::function<void(const SnakeCubeSolution_t&)>
SnakeCubeSolutionCallback_t;
typedef std::vector<int> SnakeCubeConstraint_t;

void solveSnakeCube( const SnakeCubePosition_t& constraint,
SnakeCubeSolutionCallback_t callback);
std::ostream& operator<< (std::ostream& out, SnakeCubeSolution_t solution);

I included  <vector> <ostream> <boost/tr1/functional.hpp>
<boost/multi_array.hpp>

Function implementations do not seem important, since the problem persists
with empty functions.
---
The part that won't compile is the last line of main.cpp (Error message at
the end of the post)
#include <algorithm>
#include <iostream>
#include <boost/assign/std/vector.hpp>
#include <boost/lambda/lambda.hpp>
#include "SnakeCube.h"
using namespace std;
using namespace boost::assign;
int main(int argc, char* argv[])
{
    using boost::lambda::_1;
    SnakeCubeConstraint_t constraint;
    constraint += 0,0,1,1,1,0,1,1,0,1,1,1,0,1,0,1,1,1,1,0,1,0,1,0,1,0,0;
    solveSnakeCube( constraint, cout << _1);
    // Other versions I tried:
    //solveSnakeCube( constraint, boost::ref(cout) << _1);
    //solveSnakeCube( constraint, boost::lambda::ret<ostream&>( cout << _1
) );
}
The easy way out is renaming the operator to printSoution, and use
bind(printSolution, boost::ref(cout), _1) instead of cout << _1.
Can someone please point me in the right direction on this matter?
Thanks,
Rafael
---------------
g++ -Wall --pedantic -ansi -O3 -o snakecube main.cpp SnakeCube.o
In file included from /usr/include/boost/lambda/lambda.hpp:22:0,
                 from main.cpp:6:
/usr/include/boost/lambda/detail/operator_lambda_func_base.hpp: In member
function ‘RET
boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
Args>::call(A&, B&, C&, Env&) const [with RET = std::basic_ostream<char>&,
A = const boost::multi_array<int, 3ul>, B = const boost::tuples::null_type,
C = const boost::tuples::null_type, Env = const boost::tuples::null_type,
Args = boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>]’:
/usr/include/boost/lambda/detail/lambda_functors.hpp:202:50:   instantiated
from ‘typename
boost::lambda::lambda_functor<Base>::inherited::sig<boost::tuples::tuple<const
A&> >::type boost::lambda::lambda_functor<Base>::operator()(const A&) const
[with A = boost::multi_array<int, 3ul>, T =
boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type> >, typename
boost::lambda::lambda_functor<Base>::inherited::sig<boost::tuples::tuple<const
A&> >::type = std::basic_ostream<char>&]’
/usr/include/boost/function/function_template.hpp:153:11:   instantiated
from ‘static void
boost::detail::function::void_function_obj_invoker1<FunctionObj, R,
T0>::invoke(boost::detail::function::function_buffer&, T0) [with
FunctionObj =
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type> > >, R = void, T0 =
const boost::multi_array<int, 3ul>&]’
/usr/include/boost/function/function_template.hpp:913:60:   instantiated
from ‘void boost::function1<R, T1>::assign_to(Functor) [with Functor =
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type> > >, R = void, T0 =
const boost::multi_array<int, 3ul>&]’
/usr/include/boost/function/function_template.hpp:722:7:   instantiated
from ‘boost::function1<R, T1>::function1(Functor, typename
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type) [with Functor =
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type> > >, R = void, T0 =
const boost::multi_array<int, 3ul>&, typename
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type = int]’
/usr/include/boost/function/function_template.hpp:1064:16:   instantiated
from ‘boost::function<R(T0)>::function(Functor, typename
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type) [with Functor =
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type> > >, R = void, T0 =
const boost::multi_array<int, 3ul>&, typename
boost::enable_if_c<boost::type_traits::ice_not<boost::is_integral<Functor>::value>::value,
int>::type = int]’
main.cpp:28:44:   instantiated from here
/usr/include/boost/lambda/detail/operator_lambda_func_base.hpp:212:1:
error: no match for ‘operator<<’ in ‘boost::lambda::detail::select [with
Any = std::basic_ostream<char>, A = const boost::multi_array<int, 3ul>, B =
const boost::tuples::null_type, C = const boost::tuples::null_type, Env =
const boost::tuples::null_type]((* & boost::tuples::get [with int N = 0, HT
= std::basic_ostream<char>&, TT =
boost::tuples::cons<boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>, boost::tuples::null_type>, typename
boost::tuples::access_traits<typename boost::tuples::element<N,
boost::tuples::cons<HT, TT> >::type>::const_type =
std::basic_ostream<char>&]((* &((const
boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>
>*)this)->boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>
>::args.boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>::<anonymous>))), (* &
a), (* & b), (* & c), (* & env)) << boost::lambda::detail::select [with Arg
= boost::lambda::placeholder<1>, A = const boost::multi_array<int, 3ul>, B
= const boost::tuples::null_type, C = const boost::tuples::null_type, Env =
const boost::tuples::null_type, typename Arg::sig<boost::tuples::tuple<A&,
B&, C&, Env&> >::type = const boost::multi_array<int, 3ul>&]((* &
boost::tuples::get [with int N = 1, HT = std::basic_ostream<char>&, TT =
boost::tuples::cons<boost::lambda::lambda_functor<boost::lambda::placeholder<1>
>, boost::tuples::null_type>, typename
boost::tuples::access_traits<typename boost::tuples::element<N,
boost::tuples::cons<HT, TT> >::type>::const_type = const
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >&]((* &((const
boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>
>*)this)->boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>
>::args.boost::tuples::tuple<std::basic_ostream<char>&,
boost::lambda::lambda_functor<boost::lambda::placeholder<1> >,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type,
boost::tuples::null_type, boost::tuples::null_type>::<anonymous>))), (* &
a), (* & b), (* & c), (* & env))’
/usr/include/boost/lambda/detail/operator_lambda_func_base.hpp:212:1: note:
candidates are:
/usr/include/c++/4.6/ostream:110:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type&
(*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT =
char, _Traits = std::char_traits<char>, std::basic_ostream<_CharT,
_Traits>::__ostream_type = std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:110:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to
‘std::basic_ostream<char>::__ostream_type&
(*)(std::basic_ostream<char>::__ostream_type&) {aka
std::basic_ostream<char>& (*)(std::basic_ostream<char>&)}’
/usr/include/c++/4.6/ostream:119:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type&
(*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char,
_Traits = std::char_traits<char>, std::basic_ostream<_CharT,
_Traits>::__ostream_type = std::basic_ostream<char>,
std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]
/usr/include/c++/4.6/ostream:119:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to
‘std::basic_ostream<char>::__ios_type&
(*)(std::basic_ostream<char>::__ios_type&) {aka std::basic_ios<char>&
(*)(std::basic_ios<char>&)}’
/usr/include/c++/4.6/ostream:129:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT =
char, _Traits = std::char_traits<char>, std::basic_ostream<_CharT,
_Traits>::__ostream_type = std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:129:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘std::ios_base&
(*)(std::ios_base&)’
/usr/include/c++/4.6/ostream:167:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(long int) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:167:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘long int’
/usr/include/c++/4.6/ostream:171:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(long unsigned int) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:171:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘long unsigned int’
/usr/include/c++/4.6/ostream:175:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(bool) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:175:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘bool’
/usr/include/c++/4.6/bits/ostream.tcc:93:5: note:
std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT,
_Traits>::operator<<(short int) [with _CharT = char, _Traits =
std::char_traits<char>]
/usr/include/c++/4.6/bits/ostream.tcc:93:5: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘short int’
/usr/include/c++/4.6/ostream:182:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(short unsigned int) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:182:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘short unsigned int’
/usr/include/c++/4.6/bits/ostream.tcc:107:5: note:
std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT,
_Traits>::operator<<(int) [with _CharT = char, _Traits =
std::char_traits<char>]
/usr/include/c++/4.6/bits/ostream.tcc:107:5: note:   no known conversion
for argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘int’
/usr/include/c++/4.6/ostream:193:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(unsigned int) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:193:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘unsigned int’
/usr/include/c++/4.6/ostream:202:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(long long int) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:202:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘long long int’
/usr/include/c++/4.6/ostream:206:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(long long unsigned int) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:206:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘long long unsigned
int’
/usr/include/c++/4.6/ostream:211:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(double) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:211:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘double’
/usr/include/c++/4.6/ostream:215:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(float) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:215:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘float’
/usr/include/c++/4.6/ostream:223:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(long double) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:223:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘long double’
/usr/include/c++/4.6/ostream:227:7: note: std::basic_ostream<_CharT,
_Traits>::__ostream_type& std::basic_ostream<_CharT,
_Traits>::operator<<(const void*) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT, _Traits>::__ostream_type
= std::basic_ostream<char>]
/usr/include/c++/4.6/ostream:227:7: note:   no known conversion for
argument 1 from ‘const boost::multi_array<int, 3ul>’ to ‘const void*’
/usr/include/c++/4.6/bits/ostream.tcc:121:5: note:
std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT,
_Traits>::operator<<(std::basic_ostream<_CharT,
_Traits>::__streambuf_type*) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_ostream<_CharT,
_Traits>::__streambuf_type = std::basic_streambuf<char>]
/usr/include/c++/4.6/bits/ostream.tcc:121:5: note:   no known conversion
for argument 1 from ‘const boost::multi_array<int, 3ul>’ to
‘std::basic_ostream<char>::__streambuf_type* {aka
std::basic_streambuf<char>*}’
/usr/include/boost/lambda/detail/operators.hpp:114:1: note: template<class
Arg, class B> const
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<boost::lambda::lambda_functor<Arg>, typename
boost::lambda::const_copy_argument<const B>::type> > >
boost::lambda::operator<<(const boost::lambda::lambda_functor<Arg>&, const
B&)
/usr/include/boost/lambda/detail/operators.hpp:114:1: note: template<class
A, class Arg> const
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<typename boost::lambda::const_copy_argument<const
A>::type, boost::lambda::lambda_functor<Arg> > > >
boost::lambda::operator<<(const A&, const
boost::lambda::lambda_functor<Arg>&)
/usr/include/boost/lambda/detail/operators.hpp:114:1: note: template<class
ArgA, class ArgB> const
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<boost::lambda::lambda_functor<Arg>,
boost::lambda::lambda_functor<Arg> > > > boost::lambda::operator<<(const
boost::lambda::lambda_functor<Arg>&, const
boost::lambda::lambda_functor<Arg>&)
/usr/include/boost/lambda/detail/operators.hpp:205:1: note: template<class
A, class Arg> const
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<typename
boost::lambda::detail::convert_ostream_to_ref_others_to_c_plain_by_default<A>::type,
boost::lambda::lambda_functor<Arg> > > > boost::lambda::operator<<(A&,
const boost::lambda::lambda_functor<Arg>&)
/usr/include/boost/lambda/detail/operators.hpp:222:1: note: template<class
Arg, class Ret, class ManipArg> const
boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::bitwise_action<boost::lambda::leftshift_action>,
boost::tuples::tuple<boost::lambda::lambda_functor<Arg>, Ret (&)(ManipArg)>
> > boost::lambda::operator<<(const boost::lambda::lambda_functor<Arg>&,
Ret (&)(ManipArg))
/usr/include/c++/4.6/complex:521:5: note: template<class _Tp, class _CharT,
class _Traits> std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, const
std::complex<_Tp>&)
/usr/include/c++/4.6/ostream:528:5: note: template<class _Traits>
std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char,
_Traits>&, const unsigned char*)
/usr/include/c++/4.6/ostream:523:5: note: template<class _Traits>
std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char,
_Traits>&, const signed char*)
/usr/include/c++/4.6/ostream:510:5: note: template<class _Traits>
std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char,
_Traits>&, const char*)
/usr/include/c++/4.6/bits/ostream.tcc:323:5: note: template<class _CharT,
class _Traits> std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)
/usr/include/c++/4.6/ostream:493:5: note: template<class _CharT, class
_Traits> std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)
/usr/include/c++/4.6/ostream:473:5: note: template<class _Traits>
std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char,
_Traits>&, unsigned char)
/usr/include/c++/4.6/ostream:468:5: note: template<class _Traits>
std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char,
_Traits>&, signed char)
/usr/include/c++/4.6/ostream:462:5: note: template<class _Traits>
std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char,
_Traits>&, char)
/usr/include/c++/4.6/ostream:456:5: note: template<class _CharT, class
_Traits> std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)
/usr/include/c++/4.6/ostream:451:5: note: template<class _CharT, class
_Traits> std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)
/usr/include/c++/4.6/bits/basic_string.h:2693:5: note: template<class
_CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, const
std::basic_string<_CharT, _Traits, _Alloc>&)