2 // Copyright Aleksey Gurtovoy 2001-2004
4 // Distributed under the Boost Software License, Version 1.0.
5 // (See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt)
9 // *Preprocessed* version of the main "template_arity.hpp" header
10 // -- DO NOT modify by hand!
12 namespace boost { namespace mpl { namespace aux {
13 template< int N > struct arity_tag
15 typedef char (&type)[N + 1];
19 int C1, int C2, int C3, int C4, int C5, int C6
23 BOOST_STATIC_CONSTANT(int, value =
24 ( C6 > 0 ? C6 : ( C5 > 0 ? C5 : ( C4 > 0 ? C4 : ( C3 > 0 ? C3 : ( C2 > 0 ? C2 : ( C1 > 0 ? C1 : -1 ) ) ) ) ) )
28 arity_tag<0>::type arity_helper(...);
31 template< typename P1 > class F
34 typename arity_tag<1>::type
35 arity_helper(type_wrapper< F<T1> >, arity_tag<1>);
38 template< typename P1, typename P2 > class F
39 , typename T1, typename T2
41 typename arity_tag<2>::type
42 arity_helper(type_wrapper< F< T1,T2 > >, arity_tag<2>);
45 template< typename P1, typename P2, typename P3 > class F
46 , typename T1, typename T2, typename T3
48 typename arity_tag<3>::type
49 arity_helper(type_wrapper< F< T1,T2,T3 > >, arity_tag<3>);
52 template< typename P1, typename P2, typename P3, typename P4 > class F
53 , typename T1, typename T2, typename T3, typename T4
55 typename arity_tag<4>::type
56 arity_helper(type_wrapper< F< T1,T2,T3,T4 > >, arity_tag<4>);
60 typename P1, typename P2, typename P3, typename P4
64 , typename T1, typename T2, typename T3, typename T4, typename T5
66 typename arity_tag<5>::type
67 arity_helper(type_wrapper< F< T1,T2,T3,T4,T5 > >, arity_tag<5>);
71 typename P1, typename P2, typename P3, typename P4
72 , typename P5, typename P6
75 , typename T1, typename T2, typename T3, typename T4, typename T5
78 typename arity_tag<6>::type
79 arity_helper(type_wrapper< F< T1,T2,T3,T4,T5,T6 > >, arity_tag<6>);
80 template< typename F, int N >
81 struct template_arity_impl
83 BOOST_STATIC_CONSTANT(int, value =
84 sizeof(::boost::mpl::aux::arity_helper(type_wrapper<F>(), arity_tag<N>())) - 1
88 template< typename F >
91 BOOST_STATIC_CONSTANT(int, value = (
92 max_arity< template_arity_impl< F,1 >::value, template_arity_impl< F,2 >::value, template_arity_impl< F,3 >::value, template_arity_impl< F,4 >::value, template_arity_impl< F,5 >::value, template_arity_impl< F,6 >::value >::value
94 typedef mpl::int_<value> type;