1 /* 2 3 @Copyright Barrett Adair 2015-2017 4 5 Distributed under the Boost Software License, Version 1.0. 6 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) 7 8 */ 9 10 #ifndef BOOST_CLBL_TRTS_REMOVE_MEMBER_CV_HPP 11 #define BOOST_CLBL_TRTS_REMOVE_MEMBER_CV_HPP 12 13 #include <boost/callable_traits/detail/core.hpp> 14 15 namespace boost { namespace callable_traits { 16 17 //[ remove_member_cv_hpp 18 /*` 19 [section:ref_remove_member_cv remove_member_cv] 20 [heading Header] 21 ``#include <boost/callable_traits/remove_member_cv.hpp>`` 22 [heading Definition] 23 */ 24 25 template<typename T> 26 using remove_member_cv_t = //see below 27 //<- 28 detail::try_but_fail_if_invalid< 29 typename detail::traits<T>::remove_member_cv, 30 member_qualifiers_are_illegal_for_this_type>; 31 32 namespace detail { 33 34 template<typename T, typename = std::false_type> 35 struct remove_member_cv_impl {}; 36 37 template<typename T> 38 struct remove_member_cv_impl <T, typename std::is_same< 39 remove_member_cv_t<T>, detail::dummy>::type> 40 { 41 using type = remove_member_cv_t<T>; 42 }; 43 } 44 45 //-> 46 47 template<typename T> 48 struct remove_member_cv : detail::remove_member_cv_impl<T> {}; 49 50 //<- 51 }} // namespace boost::callable_traits 52 //-> 53 54 /*` 55 [heading Constraints] 56 * `T` must be a function type or a member function pointer type 57 * If `T` is a pointer, it may not be cv/ref qualified 58 59 [heading Behavior] 60 * A substitution failure occurs if the constraints are violated. 61 * Removes member `const` and/or `volatile` qualifiers from `T`, if present. 62 63 [heading Input/Output Examples] 64 [table 65 [[`T`] [`remove_member_cv_t<T>`]] 66 [[`int() const volatile`] [`int()`]] 67 [[`int(foo::*)() const volatile`] [`int(foo::*)()`]] 68 [[`int(foo::*)() volatile`] [`int(foo::*)()`]] 69 [[`int(foo::*)() const`] [`int(foo::*)()`]] 70 [[`int(foo::*)() const &`] [`int(foo::*)() &`]] 71 [[`int(foo::*)() const &&`] [`int(foo::*)() &&`]] 72 [[`int(foo::*)() const`] [`int(foo::*)()`]] 73 [[`int`] [(substitution failure)]] 74 [[`int (&)()`] [(substitution failure)]] 75 [[`int (*)()`] [(substitution failure)]] 76 [[`int foo::*`] [(substitution failure)]] 77 [[`int (foo::* const)()`] [(substitution failure)]] 78 ] 79 80 [heading Example Program] 81 [import ../example/remove_member_cv.cpp] 82 [remove_member_cv] 83 [endsect] 84 */ 85 //] 86 87 #endif // #ifndef BOOST_CLBL_TRTS_REMOVE_MEMBER_CV_HPP 88