1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // Can a noexcept member function pointer be caught by a non-noexcept catch clause?
10 // UNSUPPORTED: c++03, c++11, c++14
11 // UNSUPPORTED: no-exceptions
12
13 // GCC supports noexcept function types but this test still fails.
14 // This is likely a bug in their implementation. Investigation needed.
15 // XFAIL: gcc-14
16
17 #include <cassert>
18
19 struct X {
fX20 template<bool Noexcept> void f() noexcept(Noexcept) {}
21 };
22 template<bool Noexcept> using FnType = void (X::*)() noexcept(Noexcept);
23
24 template<bool ThrowNoexcept, bool CatchNoexcept>
check()25 void check()
26 {
27 try
28 {
29 auto p = &X::f<ThrowNoexcept>;
30 throw p;
31 assert(false);
32 }
33 catch (FnType<CatchNoexcept> p)
34 {
35 assert(ThrowNoexcept || !CatchNoexcept);
36 assert(p == &X::f<ThrowNoexcept>);
37 }
38 catch (...)
39 {
40 assert(!ThrowNoexcept && CatchNoexcept);
41 }
42 }
43
check_deep()44 void check_deep() {
45 FnType<true> p = &X::f<true>;
46 try
47 {
48 throw &p;
49 }
50 catch (FnType<false> *q)
51 {
52 assert(false);
53 }
54 catch (FnType<true> *q)
55 {
56 }
57 catch (...)
58 {
59 assert(false);
60 }
61 }
62
main(int,char **)63 int main(int, char**)
64 {
65 check<false, false>();
66 check<false, true>();
67 check<true, false>();
68 check<true, true>();
69 check_deep();
70
71 return 0;
72 }
73