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Merge pull request #33 from morinmorin/fix_no_expr_sfinae

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result_of<F&(…)> fails on MSVC-12 if F is a function pointer
This commit is contained in:
Andrey Semashev 2017-09-23 21:59:06 +03:00 committed by GitHub
commit 5cef1403b0
2 changed files with 9 additions and 6 deletions
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9
include/boost/utility/detail/result_of_iterate.hpp
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@ -82,15 +82,12 @@ struct BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<R(BOOST_PP_
};
template<typename F>
struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION());
template<typename F>
struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F *>
struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())
: BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
{};
template<typename F>
struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F &>
struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F *>
: BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
{};
@ -99,7 +96,7 @@ struct BOOST_PP_CAT(result_of_select_call_wrapper_type_, BOOST_PP_ITERATION())
: mpl::eval_if<
is_class<typename remove_reference<F>::type>,
result_of_wrap_callable_class<F>,
mpl::identity<BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<typename remove_cv<F>::type> >
mpl::identity<BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<typename remove_cv<typename remove_reference<F>::type>::type> >
>
{};

6
test/result_of_test.cpp
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@ -297,6 +297,12 @@ int main()
BOOST_STATIC_ASSERT((is_same<result_of<const no_result_type_or_result_template<void>(void)>::type, cv_overload_check<const int> >::value));
BOOST_STATIC_ASSERT((is_same<result_of<volatile no_result_type_or_result_template<void>(void)>::type, cv_overload_check<volatile int> >::value));
BOOST_STATIC_ASSERT((is_same<result_of<const volatile no_result_type_or_result_template<void>(void)>::type, cv_overload_check<const volatile int> >::value));
BOOST_STATIC_ASSERT((is_same<result_of<func_ptr&(char, float)>::type, int>::value));
BOOST_STATIC_ASSERT((is_same<result_of<func_ptr const&(char, float)>::type, int>::value));
BOOST_STATIC_ASSERT((is_same<result_of<int_result_of&(double)>::type, int>::value));
BOOST_STATIC_ASSERT((is_same<result_of<int_result_of const&(double)>::type, int>::value));
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
BOOST_STATIC_ASSERT((is_same<result_of<no_result_type_or_result(int&&)>::type, short>::value));
BOOST_STATIC_ASSERT((is_same<result_of<no_result_type_or_result(int&)>::type, int>::value));