| Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 1 | |
| 2 | // Copyright Aleksey Gurtovoy 2001-2004 |
| 3 | // |
| 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) |
| 7 | // |
| 8 | |
| 9 | // *Preprocessed* version of the main "template_arity.hpp" header |
| 10 | // -- DO NOT modify by hand! |
| 11 | |
| 12 | namespace ndnboost { namespace mpl { namespace aux { |
| 13 | template< int N > struct arity_tag |
| 14 | { |
| 15 | typedef char (&type)[N + 1]; |
| 16 | }; |
| 17 | |
| 18 | template< |
| 19 | int C1, int C2, int C3, int C4, int C5, int C6 |
| 20 | > |
| 21 | struct max_arity |
| 22 | { |
| 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 ) ) ) ) ) ) |
| 25 | ); |
| 26 | }; |
| 27 | |
| 28 | arity_tag<0>::type arity_helper(...); |
| 29 | |
| 30 | template< |
| 31 | template< typename P1 > class F |
| 32 | , typename T1 |
| 33 | > |
| 34 | typename arity_tag<1>::type |
| 35 | arity_helper(type_wrapper< F<T1> >, arity_tag<1>); |
| 36 | |
| 37 | template< |
| 38 | template< typename P1, typename P2 > class F |
| 39 | , typename T1, typename T2 |
| 40 | > |
| 41 | typename arity_tag<2>::type |
| 42 | arity_helper(type_wrapper< F< T1,T2 > >, arity_tag<2>); |
| 43 | |
| 44 | template< |
| 45 | template< typename P1, typename P2, typename P3 > class F |
| 46 | , typename T1, typename T2, typename T3 |
| 47 | > |
| 48 | typename arity_tag<3>::type |
| 49 | arity_helper(type_wrapper< F< T1,T2,T3 > >, arity_tag<3>); |
| 50 | |
| 51 | template< |
| 52 | template< typename P1, typename P2, typename P3, typename P4 > class F |
| 53 | , typename T1, typename T2, typename T3, typename T4 |
| 54 | > |
| 55 | typename arity_tag<4>::type |
| 56 | arity_helper(type_wrapper< F< T1,T2,T3,T4 > >, arity_tag<4>); |
| 57 | |
| 58 | template< |
| 59 | template< |
| 60 | typename P1, typename P2, typename P3, typename P4 |
| 61 | , typename P5 |
| 62 | > |
| 63 | class F |
| 64 | , typename T1, typename T2, typename T3, typename T4, typename T5 |
| 65 | > |
| 66 | typename arity_tag<5>::type |
| 67 | arity_helper(type_wrapper< F< T1,T2,T3,T4,T5 > >, arity_tag<5>); |
| 68 | |
| 69 | template< |
| 70 | template< |
| 71 | typename P1, typename P2, typename P3, typename P4 |
| 72 | , typename P5, typename P6 |
| 73 | > |
| 74 | class F |
| 75 | , typename T1, typename T2, typename T3, typename T4, typename T5 |
| 76 | , typename T6 |
| 77 | > |
| 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 |
| 82 | { |
| 83 | BOOST_STATIC_CONSTANT(int, value = |
| 84 | sizeof(::ndnboost::mpl::aux::arity_helper(type_wrapper<F>(), arity_tag<N>())) - 1 |
| 85 | ); |
| 86 | }; |
| 87 | |
| 88 | template< typename F > |
| 89 | struct template_arity |
| 90 | { |
| 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 |
| 93 | )); |
| 94 | typedef mpl::int_<value> type; |
| 95 | }; |
| 96 | |
| 97 | }}} |