forked from OSchip/llvm-project
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// [func.require]
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// INVOKE
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#if __cplusplus < 201103L
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int main () {} // no __invoke in C++03
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#else
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#include <type_traits>
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template <typename T, int N>
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struct Array
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{
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typedef T type[N];
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};
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struct Type
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{
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Array<char, 1>::type& f1();
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Array<char, 2>::type& f2() const;
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Array<char, 1>::type& g1() &;
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Array<char, 2>::type& g2() const &;
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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Array<char, 3>::type& g3() &&;
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Array<char, 4>::type& g4() const &&;
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#endif
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};
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int main()
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{
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static_assert(sizeof(std::__invoke(&Type::f1, std::declval<Type >())) == 1, "");
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static_assert(sizeof(std::__invoke(&Type::f2, std::declval<Type const >())) == 2, "");
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static_assert(sizeof(std::__invoke(&Type::g1, std::declval<Type &>())) == 1, "");
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static_assert(sizeof(std::__invoke(&Type::g2, std::declval<Type const &>())) == 2, "");
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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static_assert(sizeof(std::__invoke(&Type::g3, std::declval<Type &&>())) == 3, "");
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static_assert(sizeof(std::__invoke(&Type::g4, std::declval<Type const&&>())) == 4, "");
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#endif
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}
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#endif
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