| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // [[nodiscard]] void* operator new[](std::size_t); |
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| 10 | // [[nodiscard]] void* operator new[](std::size_t, std::nothrow_t const&); |
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| 11 | // [[nodiscard]] void* operator new[](std::size_t, std::align_val_t); |
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| 12 | // [[nodiscard]] void* operator new[](std::size_t, std::align_val_t, std::nothrow_t const&); |
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| 13 | |
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| 14 | // [[nodiscard]] is not supported at all in c++03 |
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| 15 | // UNSUPPORTED: c++03 |
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| 16 | |
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| 17 | // [[nodiscard]] enabled before C++20 in libc++ as an extension |
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| 18 | // UNSUPPORTED: (c++11 || c++14 || c++17) && !stdlib=libc++ |
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| 19 | |
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| 20 | // Libc++ when built for z/OS doesn't contain the aligned allocation functions, |
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| 21 | // nor does the dynamic library shipped with z/OS. |
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| 22 | // XFAIL: target={{.+}}-zos{{.*}} |
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| 23 | |
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| 24 | #include <new> |
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| 25 | |
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| 26 | #include "test_macros.h" |
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| 27 | |
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| 28 | void f() { |
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| 29 | ::operator new[](4); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 30 | ::operator new[](4, std::nothrow); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 31 | |
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| 32 | #if TEST_STD_VER >= 17 |
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| 33 | ::operator new[](4, std::align_val_t{4}); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 34 | ::operator new[](4, std::align_val_t{4}, std::nothrow); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 35 | #endif |
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| 36 | } |
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| 37 | |
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