1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPPABI_VERSION 11#error this header can only be used with libc++abi 12#endif 13 14namespace std { 15 16bool uncaught_exception() noexcept { return uncaught_exceptions() > 0; } 17 18int uncaught_exceptions() noexcept 19{ 20# if _LIBCPPABI_VERSION > 1001 21 return __cxa_uncaught_exceptions(); 22# else 23 return __cxa_uncaught_exception() ? 1 : 0; 24# endif 25} 26 27} // namespace std 28