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
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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: libcpp-no-exceptions
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// MODULES_DEFINES: _LIBCPP_DEBUG=0
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// Can't test the system lib because this test enables debug mode
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// UNSUPPORTED: with_system_cxx_lib
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// Test that the default debug handler can be overridden and test the
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// throwing debug handler.
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#define _LIBCPP_DEBUG 0
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#include <cstdlib>
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#include <exception>
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#include <type_traits>
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#include <__debug>
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int main()
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{
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{
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std::__libcpp_debug_function = std::__libcpp_throw_debug_function;
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try {
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_LIBCPP_ASSERT(false, "foo");
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} catch (std::__libcpp_debug_exception const&) {}
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}
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{
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// test that the libc++ exception type derives from std::exception
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static_assert((std::is_base_of<std::exception,
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std::__libcpp_debug_exception
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>::value), "must be an exception");
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}
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}
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