mirror of https://gitee.com/bigwinds/arangodb
54 lines
2.3 KiB
C++
54 lines
2.3 KiB
C++
// (C) Copyright John Maddock 2005.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifdef TEST_STD_HEADERS
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#include <functional>
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#else
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#include <boost/tr1/functional.hpp>
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#endif
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#include <boost/static_assert.hpp>
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#include <boost/type_traits/is_same.hpp>
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struct int_result_type { typedef int result_type; };
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struct int_result_of
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{
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template<typename F> struct result { typedef int type; };
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};
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struct int_result_type_and_float_result_of
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{
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typedef int result_type;
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template<typename F> struct result { typedef float type; };
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};
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struct X {};
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int main()
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{
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typedef int (*func_ptr)(float, double);
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typedef int (&func_ref)(float, double);
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typedef int (X::*mem_func_ptr)(float);
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typedef int (X::*mem_func_ptr_c)(float) const;
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typedef int (X::*mem_func_ptr_v)(float) volatile;
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typedef int (X::*mem_func_ptr_cv)(float) const volatile;
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<int_result_type(float)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<int_result_of(double)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<int_result_of(void)>::type, void>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<const int_result_of(double)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<volatile int_result_of(void)>::type, void>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<int_result_type_and_float_result_of(char)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<func_ptr(char, float)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<func_ref(char, float)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<mem_func_ptr(X,char)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<mem_func_ptr_c(X,char)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<mem_func_ptr_v(X,char)>::type, int>::value));
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BOOST_STATIC_ASSERT((::boost::is_same< ::std::tr1::result_of<mem_func_ptr_cv(X,char)>::type, int>::value));
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return 0;
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}
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