set_unexpected.pass.cpp revision e3e488eb61abdccb12fbdc88f645258cdb25086d 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// test set_unexpected
11
12#include <exception>
13#include <cassert>
14#include <cstdlib>
15
16void f1() {}
17void f2() {}
18
19void f3()
20{
21    std::exit(0);
22}
23
24int main()
25{
26    std::unexpected_handler old = std::set_unexpected(f1);
27    // verify there is a previous unexpected handler
28    assert(old);
29    // verify f1 was replace with f2
30    assert(std::set_unexpected(f2) == f1);
31    // verify calling original unexpected handler calls terminate
32    std::set_terminate(f3);
33    (*old)();
34    assert(0);
35}
36