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907c1196a7
Libc++ is used as a system library on macOS and iOS (amongst others). In order for users to be able to compile a binary that is intended to be deployed to an older version of the platform, clang provides the availability attribute <https://clang.llvm.org/docs/AttributeReference.html#availability>_ that can be placed on declarations to describe the lifecycle of a symbol in the library. See docs/DesignDocs/AvailabilityMarkup.rst for more information. Differential Revision: https://reviews.llvm.org/D31739 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302172 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
1010 B
C++
32 lines
1010 B
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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// UNSUPPORTED: c++98, c++03, c++11
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// XFAIL: availability_markup=macosx10.12
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// XFAIL: availability_markup=macosx10.11
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// XFAIL: availability_markup=macosx10.10
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// XFAIL: availability_markup=macosx10.9
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// XFAIL: availability_markup=macosx10.8
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// XFAIL: availability_markup=macosx10.7
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// <optional>
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// class bad_optional_access : public logic_error
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#include <experimental/optional>
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#include <type_traits>
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int main()
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{
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using std::experimental::bad_optional_access;
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static_assert(std::is_base_of<std::logic_error, bad_optional_access>::value, "");
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static_assert(std::is_convertible<bad_optional_access*, std::logic_error*>::value, "");
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}
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