| 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 function pointer be caught by a non-noexcept catch clause? |
| 10 | // UNSUPPORTED: c++03, c++11, c++14 |
| 11 | // UNSUPPORTED: no-exceptions |
| 12 | |
| 13 | #include <cassert> |
| 14 | |
| 15 | template<bool Noexcept> void f() noexcept(Noexcept) {} |
| 16 | template<bool Noexcept> using FnType = void() noexcept(Noexcept); |
| 17 | |
| 18 | template<bool ThrowNoexcept, bool CatchNoexcept> |
| 19 | void check() |
| 20 | { |
| 21 | try |
| 22 | { |
| 23 | auto *p = f<ThrowNoexcept>; |
| 24 | throw p; |
| 25 | assert(false); |
| 26 | } |
| 27 | catch (FnType<CatchNoexcept> *p) |
| 28 | { |
| 29 | assert(ThrowNoexcept || !CatchNoexcept); |
| 30 | assert(p == &f<ThrowNoexcept>); |
| 31 | } |
| 32 | catch (...) |
| 33 | { |
| 34 | assert(!ThrowNoexcept && CatchNoexcept); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | void check_deep() { |
| 39 | auto *p = f<true>; |
| 40 | try |
| 41 | { |
| 42 | throw &p; |
| 43 | } |
| 44 | catch (FnType<false> **q) |
| 45 | { |
| 46 | assert(false); |
| 47 | } |
| 48 | catch (FnType<true> **q) |
| 49 | { |
| 50 | } |
| 51 | catch (...) |
| 52 | { |
| 53 | assert(false); |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | int main(int, char**) |
| 58 | { |
| 59 | check<false, false>(); |
| 60 | check<false, true>(); |
| 61 | check<true, false>(); |
| 62 | check<true, true>(); |
| 63 | check_deep(); |
| 64 | |
| 65 | return 0; |
| 66 | } |
| 67 |