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// ----------------------------------------------------------------------------
// group.hpp :  encapsulates a group of manipulators along with an argument
// ----------------------------------------------------------------------------

//  Copyright Samuel Krempp 2003. Use, modification, and distribution are
//  subject to the Boost Software License, Version 1.0. (See accompanying
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org/libs/format for library home page

// ----------------------------------------------------------------------------

                      
// group_head : cut the last element of a group out.
// (is overloaded below on each type of group)

// group_last : returns the last element of a group
// (is overloaded below on each type of group)
// ----------------------------------------------------------------------------


#ifndef BOOST_FORMAT_GROUP_HPP
#define BOOST_FORMAT_GROUP_HPP

#include <boost/config.hpp>


namespace boost {
namespace io {


namespace detail {


// empty group, but useful even though.
struct group0 
{
    group0()      {}
};

template <class Ch, class Tr>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << ( BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group0& )
{ 
   return os; 
}

template <class T1>
struct group1
{
    T1 a1_;
    group1(T1 a1)
      : a1_(a1)
      {}
private:
   group1& operator=(const group1&);
};

template <class Ch, class Tr, class T1>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group1<T1>& x)
{ 
   os << x.a1_;  
   return os; 
}




template <class T1,class T2>
struct group2
{
    T1 a1_;
    T2 a2_;
    group2(T1 a1,T2 a2)
      : a1_(a1),a2_(a2)
      {}
private:
   group2& operator=(const group2&);
};

template <class Ch, class Tr, class T1,class T2>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group2<T1,T2>& x)
{ 
   os << x.a1_<< x.a2_;  
   return os; 
}

template <class T1,class T2,class T3>
struct group3
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    group3(T1 a1,T2 a2,T3 a3)
      : a1_(a1),a2_(a2),a3_(a3)
      {}
private:
   group3& operator=(const group3&);
};

template <class Ch, class Tr, class T1,class T2,class T3>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group3<T1,T2,T3>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_;  
   return os; 
}

template <class T1,class T2,class T3,class T4>
struct group4
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    group4(T1 a1,T2 a2,T3 a3,T4 a4)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4)
      {}
private:
   group4& operator=(const group4&);
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group4<T1,T2,T3,T4>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_;  
   return os; 
}

template <class T1,class T2,class T3,class T4,class T5>
struct group5
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    T5 a5_;
    group5(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5)
      {}
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group5<T1,T2,T3,T4,T5>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_;  
   return os; 
}

template <class T1,class T2,class T3,class T4,class T5,class T6>
struct group6
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    T5 a5_;
    T6 a6_;
    group6(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6)
      {}
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group6<T1,T2,T3,T4,T5,T6>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_;  
   return os; 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7>
struct group7
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    T5 a5_;
    T6 a6_;
    T7 a7_;
    group7(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7)
      {}
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group7<T1,T2,T3,T4,T5,T6,T7>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_;  
   return os; 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8>
struct group8
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    T5 a5_;
    T6 a6_;
    T7 a7_;
    T8 a8_;
    group8(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7),a8_(a8)
      {}
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group8<T1,T2,T3,T4,T5,T6,T7,T8>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_<< x.a8_;  
   return os; 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9>
struct group9
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    T5 a5_;
    T6 a6_;
    T7 a7_;
    T8 a8_;
    T9 a9_;
    group9(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8,T9 a9)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7),a8_(a8),a9_(a9)
      {}
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group9<T1,T2,T3,T4,T5,T6,T7,T8,T9>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_<< x.a8_<< x.a9_;  
   return os; 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10>
struct group10
{
    T1 a1_;
    T2 a2_;
    T3 a3_;
    T4 a4_;
    T5 a5_;
    T6 a6_;
    T7 a7_;
    T8 a8_;
    T9 a9_;
    T10 a10_;
    group10(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8,T9 a9,T10 a10)
      : a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7),a8_(a8),a9_(a9),a10_(a10)
      {}
};

template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10>
inline
BOOST_IO_STD basic_ostream<Ch, Tr>&
operator << (BOOST_IO_STD basic_ostream<Ch, Tr>& os,
             const group10<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>& x)
{ 
   os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_<< x.a8_<< x.a9_<< x.a10_;  
   return os; 
}




template <class T1,class T2>
inline
group1<T1> 
group_head( group2<T1,T2> const& x)
{
   return group1<T1> (x.a1_); 
}

template <class T1,class T2>
inline
group1<T2> 
group_last( group2<T1,T2> const& x)
{
   return group1<T2> (x.a2_); 
}



template <class T1,class T2,class T3>
inline
group2<T1,T2> 
group_head( group3<T1,T2,T3> const& x)
{
   return group2<T1,T2> (x.a1_,x.a2_); 
}

template <class T1,class T2,class T3>
inline
group1<T3> 
group_last( group3<T1,T2,T3> const& x)
{
   return group1<T3> (x.a3_); 
}



template <class T1,class T2,class T3,class T4>
inline
group3<T1,T2,T3> 
group_head( group4<T1,T2,T3,T4> const& x)
{
   return group3<T1,T2,T3> (x.a1_,x.a2_,x.a3_); 
}

template <class T1,class T2,class T3,class T4>
inline
group1<T4> 
group_last( group4<T1,T2,T3,T4> const& x)
{
   return group1<T4> (x.a4_); 
}



template <class T1,class T2,class T3,class T4,class T5>
inline
group4<T1,T2,T3,T4> 
group_head( group5<T1,T2,T3,T4,T5> const& x)
{
   return group4<T1,T2,T3,T4> (x.a1_,x.a2_,x.a3_,x.a4_); 
}

template <class T1,class T2,class T3,class T4,class T5>
inline
group1<T5> 
group_last( group5<T1,T2,T3,T4,T5> const& x)
{
   return group1<T5> (x.a5_); 
}



template <class T1,class T2,class T3,class T4,class T5,class T6>
inline
group5<T1,T2,T3,T4,T5> 
group_head( group6<T1,T2,T3,T4,T5,T6> const& x)
{
   return group5<T1,T2,T3,T4,T5> (x.a1_,x.a2_,x.a3_,x.a4_,x.a5_); 
}

template <class T1,class T2,class T3,class T4,class T5,class T6>
inline
group1<T6> 
group_last( group6<T1,T2,T3,T4,T5,T6> const& x)
{
   return group1<T6> (x.a6_); 
}



template <class T1,class T2,class T3,class T4,class T5,class T6,class T7>
inline
group6<T1,T2,T3,T4,T5,T6> 
group_head( group7<T1,T2,T3,T4,T5,T6,T7> const& x)
{
   return group6<T1,T2,T3,T4,T5,T6> (x.a1_,x.a2_,x.a3_,x.a4_,x.a5_,x.a6_); 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7>
inline
group1<T7> 
group_last( group7<T1,T2,T3,T4,T5,T6,T7> const& x)
{
   return group1<T7> (x.a7_); 
}



template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8>
inline
group7<T1,T2,T3,T4,T5,T6,T7> 
group_head( group8<T1,T2,T3,T4,T5,T6,T7,T8> const& x)
{
   return group7<T1,T2,T3,T4,T5,T6,T7> (x.a1_,x.a2_,x.a3_,x.a4_,x.a5_,x.a6_,x.a7_); 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8>
inline
group1<T8> 
group_last( group8<T1,T2,T3,T4,T5,T6,T7,T8> const& x)
{
   return group1<T8> (x.a8_); 
}



template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9>
inline
group8<T1,T2,T3,T4,T5,T6,T7,T8> 
group_head( group9<T1,T2,T3,T4,T5,T6,T7,T8,T9> const& x)
{
   return group8<T1,T2,T3,T4,T5,T6,T7,T8> (x.a1_,x.a2_,x.a3_,x.a4_,x.a5_,x.a6_,x.a7_,x.a8_); 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9>
inline
group1<T9> 
group_last( group9<T1,T2,T3,T4,T5,T6,T7,T8,T9> const& x)
{
   return group1<T9> (x.a9_); 
}



template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10>
inline
group9<T1,T2,T3,T4,T5,T6,T7,T8,T9> 
group_head( group10<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10> const& x)
{
   return group9<T1,T2,T3,T4,T5,T6,T7,T8,T9> (x.a1_,x.a2_,x.a3_,x.a4_,x.a5_,x.a6_,x.a7_,x.a8_,x.a9_); 
}

template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10>
inline
group1<T10> 
group_last( group10<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10> const& x)
{
   return group1<T10> (x.a10_); 
}





} // namespace detail



// helper functions


inline detail::group1< detail::group0 >  
group() { return detail::group1< detail::group0 > ( detail::group0() ); }

template  <class T1, class Var> 
inline
detail::group1< detail::group2<T1, Var const&> >
  group(T1 a1, Var const& var)
{ 
   return detail::group1< detail::group2<T1, Var const&> >
                   ( detail::group2<T1, Var const&> 
                        (a1, var) 
                  );
}

template  <class T1,class T2, class Var> 
inline
detail::group1< detail::group3<T1,T2, Var const&> >
  group(T1 a1,T2 a2, Var const& var)
{ 
   return detail::group1< detail::group3<T1,T2, Var const&> >
                   ( detail::group3<T1,T2, Var const&> 
                        (a1,a2, var) 
                  );
}

template  <class T1,class T2,class T3, class Var> 
inline
detail::group1< detail::group4<T1,T2,T3, Var const&> >
  group(T1 a1,T2 a2,T3 a3, Var const& var)
{ 
   return detail::group1< detail::group4<T1,T2,T3, Var const&> >
                   ( detail::group4<T1,T2,T3, Var const&> 
                        (a1,a2,a3, var) 
                  );
}

template  <class T1,class T2,class T3,class T4, class Var> 
inline
detail::group1< detail::group5<T1,T2,T3,T4, Var const&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4, Var const& var)
{ 
   return detail::group1< detail::group5<T1,T2,T3,T4, Var const&> >
                   ( detail::group5<T1,T2,T3,T4, Var const&> 
                        (a1,a2,a3,a4, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5, class Var> 
inline
detail::group1< detail::group6<T1,T2,T3,T4,T5, Var const&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5, Var const& var)
{ 
   return detail::group1< detail::group6<T1,T2,T3,T4,T5, Var const&> >
                   ( detail::group6<T1,T2,T3,T4,T5, Var const&> 
                        (a1,a2,a3,a4,a5, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6, class Var> 
inline
detail::group1< detail::group7<T1,T2,T3,T4,T5,T6, Var const&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6, Var const& var)
{ 
   return detail::group1< detail::group7<T1,T2,T3,T4,T5,T6, Var const&> >
                   ( detail::group7<T1,T2,T3,T4,T5,T6, Var const&> 
                        (a1,a2,a3,a4,a5,a6, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6,class T7, class Var> 
inline
detail::group1< detail::group8<T1,T2,T3,T4,T5,T6,T7, Var const&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7, Var const& var)
{ 
   return detail::group1< detail::group8<T1,T2,T3,T4,T5,T6,T7, Var const&> >
                   ( detail::group8<T1,T2,T3,T4,T5,T6,T7, Var const&> 
                        (a1,a2,a3,a4,a5,a6,a7, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8, class Var> 
inline
detail::group1< detail::group9<T1,T2,T3,T4,T5,T6,T7,T8, Var const&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8, Var const& var)
{ 
   return detail::group1< detail::group9<T1,T2,T3,T4,T5,T6,T7,T8, Var const&> >
                   ( detail::group9<T1,T2,T3,T4,T5,T6,T7,T8, Var const&> 
                        (a1,a2,a3,a4,a5,a6,a7,a8, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9, class Var> 
inline
detail::group1< detail::group10<T1,T2,T3,T4,T5,T6,T7,T8,T9, Var const&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8,T9 a9, Var const& var)
{ 
   return detail::group1< detail::group10<T1,T2,T3,T4,T5,T6,T7,T8,T9, Var const&> >
                   ( detail::group10<T1,T2,T3,T4,T5,T6,T7,T8,T9, Var const&> 
                        (a1,a2,a3,a4,a5,a6,a7,a8,a9, var) 
                  );
}


#ifndef BOOST_NO_OVERLOAD_FOR_NON_CONST

template  <class T1, class Var> 
inline
detail::group1< detail::group2<T1, Var&> >
  group(T1 a1, Var& var)
{ 
   return detail::group1< detail::group2<T1, Var&> >
                   ( detail::group2<T1, Var&> 
                        (a1, var) 
                  );
}

template  <class T1,class T2, class Var> 
inline
detail::group1< detail::group3<T1,T2, Var&> >
  group(T1 a1,T2 a2, Var& var)
{ 
   return detail::group1< detail::group3<T1,T2, Var&> >
                   ( detail::group3<T1,T2, Var&> 
                        (a1,a2, var) 
                  );
}

template  <class T1,class T2,class T3, class Var> 
inline
detail::group1< detail::group4<T1,T2,T3, Var&> >
  group(T1 a1,T2 a2,T3 a3, Var& var)
{ 
   return detail::group1< detail::group4<T1,T2,T3, Var&> >
                   ( detail::group4<T1,T2,T3, Var&> 
                        (a1,a2,a3, var) 
                  );
}

template  <class T1,class T2,class T3,class T4, class Var> 
inline
detail::group1< detail::group5<T1,T2,T3,T4, Var&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4, Var& var)
{ 
   return detail::group1< detail::group5<T1,T2,T3,T4, Var&> >
                   ( detail::group5<T1,T2,T3,T4, Var&> 
                        (a1,a2,a3,a4, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5, class Var> 
inline
detail::group1< detail::group6<T1,T2,T3,T4,T5, Var&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5, Var& var)
{ 
   return detail::group1< detail::group6<T1,T2,T3,T4,T5, Var&> >
                   ( detail::group6<T1,T2,T3,T4,T5, Var&> 
                        (a1,a2,a3,a4,a5, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6, class Var> 
inline
detail::group1< detail::group7<T1,T2,T3,T4,T5,T6, Var&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6, Var& var)
{ 
   return detail::group1< detail::group7<T1,T2,T3,T4,T5,T6, Var&> >
                   ( detail::group7<T1,T2,T3,T4,T5,T6, Var&> 
                        (a1,a2,a3,a4,a5,a6, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6,class T7, class Var> 
inline
detail::group1< detail::group8<T1,T2,T3,T4,T5,T6,T7, Var&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7, Var& var)
{ 
   return detail::group1< detail::group8<T1,T2,T3,T4,T5,T6,T7, Var&> >
                   ( detail::group8<T1,T2,T3,T4,T5,T6,T7, Var&> 
                        (a1,a2,a3,a4,a5,a6,a7, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8, class Var> 
inline
detail::group1< detail::group9<T1,T2,T3,T4,T5,T6,T7,T8, Var&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8, Var& var)
{ 
   return detail::group1< detail::group9<T1,T2,T3,T4,T5,T6,T7,T8, Var&> >
                   ( detail::group9<T1,T2,T3,T4,T5,T6,T7,T8, Var&> 
                        (a1,a2,a3,a4,a5,a6,a7,a8, var) 
                  );
}

template  <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9, class Var> 
inline
detail::group1< detail::group10<T1,T2,T3,T4,T5,T6,T7,T8,T9, Var&> >
  group(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8,T9 a9, Var& var)
{ 
   return detail::group1< detail::group10<T1,T2,T3,T4,T5,T6,T7,T8,T9, Var&> >
                   ( detail::group10<T1,T2,T3,T4,T5,T6,T7,T8,T9, Var&> 
                        (a1,a2,a3,a4,a5,a6,a7,a8,a9, var) 
                  );
}


#endif  // - BOOST_NO_OVERLOAD_FOR_NON_CONST


} // namespace io

} // namespace boost


#endif   // BOOST_FORMAT_GROUP_HPP
group.hpp
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