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authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/type_traits/function_traits.hpp
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+
+// Copyright 2000 John Maddock (john@johnmaddock.co.uk)
+// 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/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
+#define BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
+
+#include <boost/config.hpp>
+#include <boost/type_traits/is_function.hpp>
+#include <boost/type_traits/add_pointer.hpp>
+
+namespace boost {
+
+#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+namespace detail {
+
+template<typename Function> struct function_traits_helper;
+
+template<typename R>
+struct function_traits_helper<R (*)(void)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 0);
+ typedef R result_type;
+};
+
+template<typename R, typename T1>
+struct function_traits_helper<R (*)(T1)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 1);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T1 argument_type;
+};
+
+template<typename R, typename T1, typename T2>
+struct function_traits_helper<R (*)(T1, T2)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 2);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T1 first_argument_type;
+ typedef T2 second_argument_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3>
+struct function_traits_helper<R (*)(T1, T2, T3)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 3);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4>
+struct function_traits_helper<R (*)(T1, T2, T3, T4)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 4);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5>
+struct function_traits_helper<R (*)(T1, T2, T3, T4, T5)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 5);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+ typedef T5 arg5_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6>
+struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 6);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+ typedef T5 arg5_type;
+ typedef T6 arg6_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7>
+struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 7);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+ typedef T5 arg5_type;
+ typedef T6 arg6_type;
+ typedef T7 arg7_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7, typename T8>
+struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 8);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+ typedef T5 arg5_type;
+ typedef T6 arg6_type;
+ typedef T7 arg7_type;
+ typedef T8 arg8_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7, typename T8, typename T9>
+struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 9);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+ typedef T5 arg5_type;
+ typedef T6 arg6_type;
+ typedef T7 arg7_type;
+ typedef T8 arg8_type;
+ typedef T9 arg9_type;
+};
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7, typename T8, typename T9,
+ typename T10>
+struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)>
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = 10);
+ typedef R result_type;
+ typedef T1 arg1_type;
+ typedef T2 arg2_type;
+ typedef T3 arg3_type;
+ typedef T4 arg4_type;
+ typedef T5 arg5_type;
+ typedef T6 arg6_type;
+ typedef T7 arg7_type;
+ typedef T8 arg8_type;
+ typedef T9 arg9_type;
+ typedef T10 arg10_type;
+};
+
+} // end namespace detail
+
+template<typename Function>
+struct function_traits :
+ public detail::function_traits_helper<typename boost::add_pointer<Function>::type>
+{
+};
+
+#else
+
+namespace detail {
+
+template<unsigned N>
+struct type_of_size
+{
+ char elements[N];
+};
+
+template<typename R>
+type_of_size<1> function_arity_helper(R (*f)());
+
+template<typename R, typename T1>
+type_of_size<2> function_arity_helper(R (*f)(T1));
+
+template<typename R, typename T1, typename T2>
+type_of_size<3> function_arity_helper(R (*f)(T1, T2));
+
+template<typename R, typename T1, typename T2, typename T3>
+type_of_size<4> function_arity_helper(R (*f)(T1, T2, T3));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4>
+type_of_size<5> function_arity_helper(R (*f)(T1, T2, T3, T4));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5>
+type_of_size<6> function_arity_helper(R (*f)(T1, T2, T3, T4, T5));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6>
+type_of_size<7> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7>
+type_of_size<8> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7, typename T8>
+type_of_size<9> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7, T8));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7, typename T8, typename T9>
+type_of_size<10> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7, T8,
+ T9));
+
+template<typename R, typename T1, typename T2, typename T3, typename T4,
+ typename T5, typename T6, typename T7, typename T8, typename T9,
+ typename T10>
+type_of_size<11> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7, T8,
+ T9, T10));
+} // end namespace detail
+
+// Won't work with references
+template<typename Function>
+struct function_traits
+{
+ BOOST_STATIC_CONSTANT(unsigned, arity = (sizeof(detail::function_arity_helper((Function*)0))-1));
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+}
+
+#endif // BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED