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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-exception7//8//===----------------------------------------------------------------------===//9 10#include <exception>11 12#include <cxxabi.h>13 14#ifndef _LIBCPPABI_VERSION15# error this header can only be used with libc++abi16#endif17 18namespace std {19 20bool uncaught_exception() noexcept { return uncaught_exceptions() > 0; }21 22int uncaught_exceptions() noexcept {23#if _LIBCPPABI_VERSION > 100124 return abi::__cxa_uncaught_exceptions();25#else26 return abi::__cxa_uncaught_exception() ? 1 : 0;27#endif28}29 30} // namespace std31