| 1 | /*<- |
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| 2 | Copyright Barrett Adair 2016-2017 |
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| 3 | Distributed under the Boost Software License, Version 1.0. |
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| 4 | (See accompanying file LICENSE.md or copy at http ://boost.org/LICENSE_1_0.txt) |
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| 5 | ->*/ |
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| 6 | |
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| 7 | #include <boost/callable_traits/detail/config.hpp> |
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| 8 | #ifdef BOOST_CLBL_TRTS_DISABLE_REFERENCE_QUALIFIERS |
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| 9 | int main(){ return 0; } |
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| 10 | #else |
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| 11 | |
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| 12 | //[ add_member_rvalue_reference |
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| 13 | #include <type_traits> |
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| 14 | #include <boost/callable_traits/add_member_rvalue_reference.hpp> |
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| 15 | |
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| 16 | namespace ct = boost::callable_traits; |
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| 17 | |
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| 18 | struct foo {}; |
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| 19 | |
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| 20 | int main() { |
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| 21 | |
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| 22 | { |
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| 23 | using pmf = void(foo::*)(); |
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| 24 | using expect = void(foo::*)() &&; |
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| 25 | using test = ct::add_member_rvalue_reference_t<pmf>; |
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| 26 | static_assert(std::is_same<test, expect>::value, "" ); |
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| 27 | } { |
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| 28 | // add_member_rvalue_reference_t doesn't change anything when |
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| 29 | // the function type already has an rvalue qualifier. |
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| 30 | using pmf = void(foo::*)() &&; |
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| 31 | using expect = void(foo::*)() &&; |
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| 32 | using test = ct::add_member_rvalue_reference_t<pmf>; |
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| 33 | static_assert(std::is_same<test, expect>::value, "" ); |
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| 34 | } { |
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| 35 | // add_member_rvalue_reference_t models C++11 reference collapsing |
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| 36 | // rules, so that adding an rvalue qualifier to an |
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| 37 | // lvalue-qualified type will not change anything. |
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| 38 | using pmf = void(foo::*)() const &; |
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| 39 | using expect = void(foo::*)() const &; |
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| 40 | using test = ct::add_member_rvalue_reference_t<pmf>; |
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| 41 | static_assert(std::is_same<test, expect>::value, "" ); |
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| 42 | } { |
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| 43 | // add_member_rvalue_reference_t can also be used with "abominable" |
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| 44 | // function types. |
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| 45 | using f = void() const; |
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| 46 | using expect = void() const &&; |
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| 47 | using test = ct::add_member_rvalue_reference_t<f>; |
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| 48 | static_assert(std::is_same<test, expect>::value, "" ); |
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| 49 | } |
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| 50 | } |
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| 51 | |
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| 52 | //] |
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| 53 | #endif //#ifdef BOOST_CLBL_TRTS_DISABLE_REFERENCE_QUALIFIERS |
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| 54 | |
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