35 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: no-exceptions10 11// This tests that libc++abi still provides __cxa_uncaught_exception() for12// ABI compatibility, even though the Standard doesn't require it to.13 14// __cxa_uncaught_exception was not re-exported from libc++ previously. This leads15// to undefined symbols when linking against a libc++ that re-exports the symbols,16// but running against a libc++ that doesn't. Fortunately, usage of __cxa_uncaught_exception()17// in the wild seems to be close to non-existent.18// XFAIL: using-built-library-before-llvm-1919 20#include <cxxabi.h>21#include <cassert>22 23// namespace __cxxabiv1 {24// extern bool __cxa_uncaught_exception () throw();25// }26 27struct A {28 ~A() { assert( __cxxabiv1::__cxa_uncaught_exception()); }29};30 31int main () {32 try { A a; throw 3; assert(false); }33 catch (int) {}34}35