llvm-project
42 строки · 1.3 Кб
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// UNSUPPORTED: no-exceptions
10
11// ___cxa_throw_bad_array_new_length is re-exported from libc++ only starting
12// in LLVM 9.
13// XFAIL: using-built-library-before-llvm-9
14
15#include <cxxabi.h>
16#include <new>
17
18// If the expression passed to operator new[] would result in an overflow, the
19// allocation function is not called, and a std::bad_array_new_length exception
20// is thrown instead (5.3.4p7).
21bool bad_array_new_length_test() {
22try {
23// We test this directly because Clang does not currently codegen the
24// correct call to __cxa_bad_array_new_length, so this test would result
25// in passing -1 to ::operator new[], which would then throw a
26// std::bad_alloc, causing the test to fail.
27__cxxabiv1::__cxa_throw_bad_array_new_length();
28} catch ( const std::bad_array_new_length &banl ) {
29return true;
30}
31return false;
32}
33
34int main(int, char**) {
35int ret_val = 0;
36
37if ( !bad_array_new_length_test ()) {
38ret_val = 1;
39}
40
41return ret_val;
42}
43