Marshall Clow | 71e699d | 2014-02-10 17:40:28 +0000 | [diff] [blame^] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // [func.require] |
| 11 | |
| 12 | // INVOKE |
| 13 | #if __cplusplus < 201103L |
| 14 | int main () {} // no __invoke in C++03 |
| 15 | #else |
| 16 | |
| 17 | #include <type_traits> |
| 18 | |
| 19 | template <typename T, int N> |
| 20 | struct Array |
| 21 | { |
| 22 | typedef T type[N]; |
| 23 | }; |
| 24 | |
| 25 | struct Type |
| 26 | { |
| 27 | Array<char, 1>::type& f1(); |
| 28 | Array<char, 2>::type& f2() const; |
| 29 | |
| 30 | Array<char, 1>::type& g1() &; |
| 31 | Array<char, 2>::type& g2() const &; |
| 32 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 33 | Array<char, 3>::type& g3() &&; |
| 34 | Array<char, 4>::type& g4() const &&; |
| 35 | #endif |
| 36 | }; |
| 37 | |
| 38 | int main() |
| 39 | { |
| 40 | static_assert(sizeof(std::__invoke(&Type::f1, std::declval<Type >())) == 1, ""); |
| 41 | static_assert(sizeof(std::__invoke(&Type::f2, std::declval<Type const >())) == 2, ""); |
| 42 | |
| 43 | static_assert(sizeof(std::__invoke(&Type::g1, std::declval<Type &>())) == 1, ""); |
| 44 | static_assert(sizeof(std::__invoke(&Type::g2, std::declval<Type const &>())) == 2, ""); |
| 45 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 46 | static_assert(sizeof(std::__invoke(&Type::g3, std::declval<Type &&>())) == 3, ""); |
| 47 | static_assert(sizeof(std::__invoke(&Type::g4, std::declval<Type const&&>())) == 4, ""); |
| 48 | #endif |
| 49 | } |
| 50 | #endif |