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57e446dafa
Currently there is only support for a -fno-exceptions libc++ build. This is problematic for functions such as std::terminate() which are defined in libc++abi and using any of those functions throws away most of the benefits of using -fno-exceptions (code-size). This patch introduces a -fno-exceptions libc++abi build to address this issue. This new variant of libc++abi cannot be linked against any with-exceptions code as some symbols necessary for handling exceptions are missing in this library. Differential revision: http://reviews.llvm.org/D20677 Reviewers: EricWF, mclow.lists, bcraig llvm-svn: 271267
56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
//===----------------------- cxa_bad_cast.pass.cpp ------------------------===//
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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
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#include <cxxabi.h>
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#include <cassert>
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#include <stdlib.h>
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#include <exception>
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#include <typeinfo>
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class Base {
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virtual void foo() {};
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};
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class Derived : public Base {};
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Derived &test_bad_cast(Base b) {
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return dynamic_cast<Derived&>(b);
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}
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Base gB;
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void my_terminate() { exit(0); }
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int main ()
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{
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// swap-out the terminate handler
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void (*default_handler)() = std::get_terminate();
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std::set_terminate(my_terminate);
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#ifndef LIBCXXABI_HAS_NO_EXCEPTIONS
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try {
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#endif
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Derived &d = test_bad_cast(gB);
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assert(false);
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#ifndef LIBCXXABI_HAS_NO_EXCEPTIONS
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} catch (std::bad_cast) {
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// success
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return 0;
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} catch (...) {
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assert(false);
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}
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#endif
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// failure, restore the default terminate handler and fire
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std::set_terminate(default_handler);
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std::terminate();
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}
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