31cbe0f240
C++98 and C++03 are effectively aliases as far as Clang is concerned. As such, allowing both std=c++98 and std=c++03 as Lit parameters is just slightly confusing, but provides no value. It's similar to allowing both std=c++17 and std=c++1z, which we don't do. This was discovered because we had an internal bot that ran the test suite under both c++98 AND c++03 -- one of which is redundant. Differential Revision: https://reviews.llvm.org/D80926
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
//===--------------------- catch_pointer_nullptr.cpp ----------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: c++03,
|
|
// UNSUPPORTED: no-exceptions
|
|
|
|
#include <cassert>
|
|
#include <cstdlib>
|
|
|
|
struct A {};
|
|
|
|
template<typename T, bool CanCatchNullptr>
|
|
static void catch_nullptr_test() {
|
|
try {
|
|
throw nullptr;
|
|
} catch (T &p) {
|
|
assert(CanCatchNullptr && !static_cast<bool>(p));
|
|
} catch (...) {
|
|
assert(!CanCatchNullptr);
|
|
}
|
|
}
|
|
|
|
int main()
|
|
{
|
|
using nullptr_t = decltype(nullptr);
|
|
|
|
// A reference to nullptr_t can catch nullptr.
|
|
catch_nullptr_test<nullptr_t, true>();
|
|
catch_nullptr_test<const nullptr_t, true>();
|
|
catch_nullptr_test<volatile nullptr_t, true>();
|
|
catch_nullptr_test<const volatile nullptr_t, true>();
|
|
|
|
// No other reference type can.
|
|
#if 0
|
|
// FIXME: These tests fail, because the ABI provides no way for us to
|
|
// distinguish this from catching by value.
|
|
catch_nullptr_test<void *, false>();
|
|
catch_nullptr_test<void * const, false>();
|
|
catch_nullptr_test<int *, false>();
|
|
catch_nullptr_test<A *, false>();
|
|
catch_nullptr_test<int A::*, false>();
|
|
catch_nullptr_test<int (A::*)(), false>();
|
|
#endif
|
|
}
|