175 lines
4.9 KiB
Plaintext
175 lines
4.9 KiB
Plaintext
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// Copyright 2000 John Maddock (john@johnmaddock.co.uk)
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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//
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// See http://www.boost.org/libs/type_traits for most recent version including documentation.
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#ifndef BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
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#define BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
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#include <boost/config.hpp>
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#include <boost/type_traits/is_function.hpp>
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#include <boost/type_traits/add_pointer.hpp>
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namespace boost {
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namespace detail {
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template<typename Function> struct function_traits_helper;
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template<typename R>
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struct function_traits_helper<R (*)(void)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 0);
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typedef R result_type;
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};
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template<typename R, typename T1>
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struct function_traits_helper<R (*)(T1)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 1);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T1 argument_type;
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};
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template<typename R, typename T1, typename T2>
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struct function_traits_helper<R (*)(T1, T2)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 2);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T1 first_argument_type;
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typedef T2 second_argument_type;
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};
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template<typename R, typename T1, typename T2, typename T3>
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struct function_traits_helper<R (*)(T1, T2, T3)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 3);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4>
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struct function_traits_helper<R (*)(T1, T2, T3, T4)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 4);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4,
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typename T5>
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struct function_traits_helper<R (*)(T1, T2, T3, T4, T5)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 5);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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typedef T5 arg5_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4,
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typename T5, typename T6>
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struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 6);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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typedef T5 arg5_type;
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typedef T6 arg6_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4,
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typename T5, typename T6, typename T7>
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struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 7);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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typedef T5 arg5_type;
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typedef T6 arg6_type;
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typedef T7 arg7_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4,
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typename T5, typename T6, typename T7, typename T8>
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struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 8);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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typedef T5 arg5_type;
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typedef T6 arg6_type;
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typedef T7 arg7_type;
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typedef T8 arg8_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4,
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typename T5, typename T6, typename T7, typename T8, typename T9>
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struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 9);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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typedef T5 arg5_type;
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typedef T6 arg6_type;
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typedef T7 arg7_type;
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typedef T8 arg8_type;
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typedef T9 arg9_type;
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};
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template<typename R, typename T1, typename T2, typename T3, typename T4,
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typename T5, typename T6, typename T7, typename T8, typename T9,
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typename T10>
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struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)>
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{
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BOOST_STATIC_CONSTANT(unsigned, arity = 10);
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typedef R result_type;
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typedef T1 arg1_type;
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typedef T2 arg2_type;
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typedef T3 arg3_type;
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typedef T4 arg4_type;
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typedef T5 arg5_type;
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typedef T6 arg6_type;
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typedef T7 arg7_type;
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typedef T8 arg8_type;
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typedef T9 arg9_type;
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typedef T10 arg10_type;
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};
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} // end namespace detail
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template<typename Function>
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struct function_traits :
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public boost::detail::function_traits_helper<typename boost::add_pointer<Function>::type>
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{
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};
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}
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#endif // BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
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