template<
      typename F
    >
struct apply0
{
    typedef_unspecified_type;
};

template<
      typename F, typename A1
    >
struct apply1
{
    typedef_unspecified_type;
};_..._template<
      typename F, typename A1,_..._typename An
    >
struct[apply](./apply.html)_n_{
    typedef_unspecified_type;
};

template<
      typename F
    , typename A1 =_unspecified__..._, typename An =_unspecified_>
struct[apply](./apply.html){
    typedef_unspecified_type;
};

#include <[boost/mpl/apply.hpp](../../../../boost/mpl/apply.hpp)>

typedef[apply](./apply.html)_n_<f,a1,_..._a_n_>::type t;
typedef[apply](./apply.html)<f,a1,_..._a_n_>::type t;

template< typename N1, typename N2 > struct int_plus
    :[int\_](./int.html)<( N1::value + N2::value )>
{
};

typedef[apply](./apply.html)< int_plus<[\_1](./placeholders.html),[\_2](./placeholders.html)>,[int\_](./int.html)<2>,[int\_](./int.html)<3> >::type r1;
typedef[apply](./apply.html)<[quote](./quote.html)2<int_plus>,[int\_](./int.html)<2>,[int\_](./int.html)<3> >::type r2;[BOOST\_MPL\_ASSERT\_RELATION](./assert-relation.html)( r1::value, ==, 5 );[BOOST\_MPL\_ASSERT\_RELATION](./assert-relation.html)( r2::value, ==, 5 );