1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 #ifndef _LIBCPPABI_VERSION 12 #error this header can only be used with libc++abi 13 #endif 14 15 namespace std { 16 17 bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; } 18 19 int uncaught_exceptions() _NOEXCEPT 20 { 21 # if _LIBCPPABI_VERSION > 1101 22 return __cxa_uncaught_exceptions(); 23 # else 24 return __cxa_uncaught_exception() ? 1 : 0; 25 # endif 26 } 27 28 } // namespace std 29
