get_unexpected.pass.cpp (991B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // REQUIRES: c++98 || c++03 || c++11 || c++14 11 12 // test get_unexpected 13 14 #include <exception> 15 #include <cassert> 16 #include <cstdlib> 17 18 void f1() {} 19 void f2() {} 20 21 void f3() 22 { 23 std::exit(0); 24 } 25 26 int main() 27 { 28 29 std::unexpected_handler old = std::get_unexpected(); 30 // verify there is a previous unexpected handler 31 assert(old); 32 std::set_unexpected(f1); 33 assert(std::get_unexpected() == f1); 34 // verify f1 was replace with f2 35 std::set_unexpected(f2); 36 assert(std::get_unexpected() == f2); 37 // verify calling original unexpected handler calls terminate 38 std::set_terminate(f3); 39 (*old)(); 40 assert(0); 41 }