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eb8650a757
We've stopped doing it in libc++ for a while now because these names would end up rotting as we move things around and copy/paste stuff. This cleans up all the existing files so as to stop the spreading as people copy-paste headers around.
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03,
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// UNSUPPORTED: no-exceptions
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#include <cassert>
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#include <cstdlib>
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struct A {};
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template<typename T, bool CanCatchNullptr>
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static void catch_nullptr_test() {
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try {
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throw nullptr;
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} catch (T &p) {
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assert(CanCatchNullptr && !static_cast<bool>(p));
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} catch (...) {
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assert(!CanCatchNullptr);
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}
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}
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int main(int, char**)
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{
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using nullptr_t = decltype(nullptr);
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// A reference to nullptr_t can catch nullptr.
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catch_nullptr_test<nullptr_t, true>();
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catch_nullptr_test<const nullptr_t, true>();
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catch_nullptr_test<volatile nullptr_t, true>();
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catch_nullptr_test<const volatile nullptr_t, true>();
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// No other reference type can.
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#if 0
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// FIXME: These tests fail, because the ABI provides no way for us to
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// distinguish this from catching by value.
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catch_nullptr_test<void *, false>();
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catch_nullptr_test<void * const, false>();
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catch_nullptr_test<int *, false>();
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catch_nullptr_test<A *, false>();
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catch_nullptr_test<int A::*, false>();
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catch_nullptr_test<int (A::*)(), false>();
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#endif
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return 0;
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}
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